Prepare for and practice interview questions from Red Arch Solutions.

Red Arch Solutions Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Red Arch Solutions Interview Guides

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

<h3>Job Description</h3><div>Job Description<div>Position Description: Red Arch Solutions is seeking a highly skilled Senior Software Engineer with a strong foundation in AWS Cloud technologies and DevOps practices to support a high-impact program in Annapolis Junction, Maryland.   In this role, you’ll contribute to the design, development, deployment, and maintenance of advanced cloud-native applications that are critical to national security operations. Working as part of a collaborative engineering team, you will apply modern infrastructure and development tools to build reliable, scalable, and secure systems. This position is ideal for engineers ready to deepen their cloud and DevOps expertise while supporting meaningful work in a fast-paced, mission-oriented environment. If you're a software engineer who enjoys solving hard problems with cloud-based solutions, this is your opportunity to grow within a technically challenging and rewarding environment.   This position has the potential to include TELEWORK up to 2 days per week, dependent on tasking.   Basic Qualifications:<ul><li>Active TS/SCI with Polygraph</li><li>Bachelor’s degree in Computer Science, or related discipline from an accredited college or university, plus fourteen (14) years of experience as an SWE in programs and contracts of similar scope, type, and complexity.</li><li>Terraform as Infrastructure as Code (IoC)</li><li>Lambda Functions utilizing Python 3.11</li><li>AWS RDS Aurora PostgreSQL Database </li><li>Poetry for python dependency mgmt </li><li>Docker containers </li><li>Pgadmin to facilitate the database mgmt </li><li>SE3 with presigned URLs</li><li>SQS </li><li>SNS</li><li>MakeFile</li><li>API Gateway with Lambda Authorizer </li><li>Step Functions DynamoDB as a user cache </li><li>Cloudwatch</li></ul><div> Red Arch Requirement: AWS Associate and/or Professional Cloud certification(s) and direct experience in cloud/ML/AI and or similar technology.</div><div>Salary range for this position: $195,000 - 250,000 #CJ</div>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRuNxsQlC5yv</div></div>

<h3>Job Description</h3><div>Job Description<div>Position Description: Red Arch Solutions is looking for a Principal Cloud Software Engineer with deep expertise in DevOps and AWS Cloud technologies to join a high-priority program in Annapolis Junction, Maryland. An active TS/SCI with Polygraph is required.  This position has TELEWORK up to 2 days per week, dependent on tasking.   As a Principal Cloud SWE, you will lead the development and enhancement of complex, distributed systems based on well-defined requirements - leveraging cutting-edge AWS services, Infrastructure as Code (Terraform), and modern DevOps pipelines. You’ll work across the full software lifecycle and collaborate closely with a team of top-tier engineers and system architects to build scalable, secure, and resilient systems. This role offers the opportunity to make a direct impact by designing, developing, and deploying advanced cloud-native solutions that support critical national security initiatives.  If you're a software engineer who enjoys solving hard problems with cloud-based solutions, this is your opportunity to grow within a technically challenging and rewarding environment.   Basic Qualifications:<ul><li>Active TS/SCI with Polygraph.</li><li>Bachelor’s degree in Computer Science, or related discipline from an accredited college or university, plus twenty (20) years of experience as an SWE in programs and contracts of similar scope, type, and complexity.</li><li>Some experience in SE skills (requirements decomposition)</li><li>Terraform as Infrastructure as Code (IoC)</li><li>Lambda Functions utilizing Python 3.11</li><li>AWS RDS Aurora PostgreSQL Database </li><li>Poetry for python dependency mgmt </li><li>Docker containers </li><li>Pgadmin to facilitate the database mgmt </li><li>SE3 with presigned URLs</li><li>SQS </li><li>SNS</li><li>MakeFile</li><li>API Gateway with Lambda Authorizer </li><li>Step Functions DynamoDB as a user cache </li><li>Cloudwatch</li></ul><div>Red Arch Requirement:</div><ul><li>AWS Professional Cloud certification(s) within 6 months of employment.</li><li>Direct experience in cloud/ML/AI and or similar technology. </li></ul><div>Salary range for this position: $240,000 - $300,000 #CJ</div>  The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRafMsOKmnfc</div></div>

<h3>Job Description</h3><div>Job Description<div>***Active TS/SCI with CI Polygraph Required***Red Arch Solutions is a proven and effective small business integrator and consultant, recognized as a leading provider of IT development to the Federal Government, and primarily focused within the Intelligence Community. As a Business Analyst, you’ll support a particular agile workstream team (either Integration or UI) to help gather requirements, ensure delivery meets required needs, and ensures work will be accepted without any major issues What you’ll do:<ul><li>Perform requirements analysis and documentation activities such as: Gather, analyze, and document business requirements through stakeholder interviews, workshops, and process observation; Translate business needs into detailed functional and technical specifications; Create comprehensive documentation including user stories, use cases, process flows, and system requirements; and Maintain requirements traceability throughout project lifecycles</li><li>Conduct Process Analysis and Improvement Activities such as: Conduct gap analysis between current state and desired future state; Develop process maps, workflows, and standard operating procedures; etc.</li><li>Engage in Stakeholder Management Activities such as: Collaborate with business users, project managers, developers, and other key stakeholders, etc.</li><li>Perform Systems Analysis & Testing activities such as: Analyze system functionality and performance to ensure alignment with business requirements</li><li>Conduct Data Analysis & Reporting Activities such as: Create reports, dashboards, and visualizations to support decision-making</li></ul>What you’ll need to succeed:<ul><li>Minimum 7 years of experience</li><li>Bachelor's Degree; or equivalent experience in leu of degree</li><li>Hold an active government issued TS/SCI CI Poly clearance</li><li>Proven experience gathering, analyzing, and documenting business requirements through stakeholder interviews, workshops, and process observation.</li><li>Demonstrated ability to translate business needs into detailed functional and technical specifications.</li><li>Strong background in creating documentation such as user stories, use cases, process flows, and system requirements, with the ability to maintain requirements traceability throughout project lifecycles.</li><li>Experience conducting gap analyses to identify differences between current state and desired future state.</li><li>Proficiency in developing process maps, workflows, and standard operating procedures (SOPs).</li><li>Demonstrated success in stakeholder management, including collaboration with business users, project managers, developers, and other key stakeholders to ensure alignment and buy-in.</li><li>Hands-on experience analyzing system functionality and performance to validate alignment with business requirements, including participation in system testing and validation activities.</li><li>Proficiency in data analysis, including creating reports, dashboards, and visualizations to support decision-making.#CJ </li></ul>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRzb9Q6J2pSM</div></div>

<h3>Job Description</h3><div>Job Description<div>Software Engineer - Job DescriptionClearanceActive TS/SCI with Polygraph (required)SummaryRed Arch is seeking a highly experienced Principal Software Engineer with full lifecycle development expertise, strong backend engineering skills, and hands-on experience in modern cloud and containerized environments. The ideal candidate will have a proven track record in designing and implementing secure, scalable solutions using cutting-edge technologies.Key Responsibilities<ul><li>Full lifecycle software development for enterprise and cloud-based applications.</li><li>Design and implement backend services and APIs using Java, Python, and REST.</li><li>Develop and maintain data processing pipelines using Apache NiFi.</li><li>Architect and optimize relational and NoSQL databases, including PostgreSQL.</li><li>Implement secure data solutions leveraging Openshift/Kubernetes.</li><li>Containerize applications and manage deployments using Docker and Kubernetes.</li><li>Build and maintain CI/CD pipelines using GitLab, Jenkins, and Maven.</li><li>Support microservices, architecture, and infrastructure automation </li><li>Participate in Agile ceremonies (daily stand-ups, sprint planning, retrospectives) and contribute to rapid release cycles.</li><li>Ensure compliance with security and governance standards.</li><li>Ability to coach and mentor junior engineers</li></ul>Required Skills & Tools<ul><li>Programming: Java, Python, REST, JSON, XML</li><li>Data: SQL, PostgreSQL, , </li><li>Data Processing: Apache NiFi</li><li>Cloud Platforms: AWS, , </li><li>Containers & Orchestration: Docker, Kubernetes</li><li>Security: Openshift/Kubernetes, encryption technologies</li><li>DevOps: GitLab, Jenkins, , , Git</li><li>Operating Systems: Linux, Unix, , </li></ul>Certifications<ul><li>Security+ (CompTIA) – Required or must obtain within 6 months</li><li>Preferred: CISSP, CCSP, or equivalent cybersecurity certifications</li></ul><div> Qualifications</div><ul><li>10 years experience.  (Degree can be used in lieu of experience AA-2 years, BS-4years, MS-6 years) </li><li>Experience developing, maintaining, and enhancing complex and diverse software systems based upon documented requirements.</li><li>Designs new API interfaces. Performs software and script development and integration. </li></ul>Preferred Qualifications<ul><li>Experience with Zero Trust architectures and secure data flows.</li><li>Familiarity with microservices frameworks (e.g., Quarkus).</li><li>Strong understanding of cloud analytics and distributed systems (Hadoop, Accumulo).</li><li>Active TS/SCI clearance with Polygraph.</li><li>Experience with DPaaS platforms #CJ</li></ul><div></div>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRtHURHSbYxb</div></div>

<h3>Job Description</h3><div>Job Description<div>Software Engineer - Job DescriptionClearanceActive TS/SCI with Polygraph (required)SummaryRed Arch is seeking a highly experienced Principal Software Engineer with full lifecycle development expertise, strong backend engineering skills, and hands-on experience in modern cloud and containerized environments. The ideal candidate will have a proven track record in designing and implementing secure, scalable solutions using cutting-edge technologies.Key Responsibilities<ul><li>Full lifecycle software development for enterprise and cloud-based applications.</li><li>Design and implement backend services and APIs using Java, Python, and REST.</li><li>Develop and maintain data processing pipelines using Apache NiFi.</li><li>Architect and optimize relational and NoSQL databases, including PostgreSQL.</li><li>Implement secure data solutions leveraging Openshift/Kubernetes.</li><li>Containerize applications and manage deployments using Docker and Kubernetes.</li><li>Build and maintain CI/CD pipelines using GitLab, Jenkins, and Maven.</li><li>Support microservices, architecture, and infrastructure automation </li><li>Participate in Agile ceremonies (daily stand-ups, sprint planning, retrospectives) and contribute to rapid release cycles.</li><li>Ensure compliance with security and governance standards.</li><li>Ability to coach and mentor junior engineers</li></ul>Required Skills & Tools<ul><li>Programming: Java, Python, REST, JSON, XML</li><li>Data: SQL, PostgreSQL, , </li><li>Data Processing: Apache NiFi</li><li>Cloud Platforms: AWS, , </li><li>Containers & Orchestration: Docker, Kubernetes</li><li>Security: Openshift/Kubernetes, encryption technologies</li><li>DevOps: GitLab, Jenkins, , , Git</li><li>Operating Systems: Linux, Unix, , </li></ul>Certifications<ul><li>Security+ (CompTIA) – Required or must obtain within 6 months</li><li>Preferred: CISSP, CCSP, or equivalent cybersecurity certifications</li></ul>Qualifications<ul><li>16 years experience.  (Degrees accepted in lieu of experience AA 2 years, BS 4 years, MS 6 years) </li><li>Experience developing, maintaining, and enhancing complex and diverse software systems based upon documented requirements.</li><li>Designs new API interfaces. Performs software and script development and integration. </li></ul>Preferred Qualifications<ul><li>Experience with Zero Trust architectures and secure data flows.</li><li>Familiarity with microservices frameworks (e.g., Quarkus).</li><li>Strong understanding of cloud analytics and distributed systems (Hadoop, Accumulo).</li><li>Active TS/SCI clearance with Polygraph.</li><li>Experience with DPaaS platforms #CJ</li></ul><div></div>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRz1mP6Z0h1q</div></div>

<h3>Job Description</h3><div>Job Description<div>***Active TS/SCI with CI Polygraph Required***Red Arch Solutions is a proven and effective small business integrator and consultant, recognized as a leading provider of IT development to the Federal Government, and primarily focused within the Intelligence Community. Red Arch Solutions is looking for a software engineer to support our client. The scope of this contract relates to maturing and maintaining an IT managed service model, evolving an intelligence organization and its data to a hyperconverged cloud environment, improving the organizational collaboration technology, delivering a more agile operational architecture to the warfighter using commercial technology. As Software Engineer , you’ll bring creative architect solutions to end customers, with the goal to make an impact across the federal government.If you think you can see yourself delivering our mission and pursuing our goals with us, then check out the job description below!What you’ll do:<ul><li>You'll work with AI team members to operationalize data pipelines and ML tasks</li><li>You'll provide day-to-day support of deploying Python-native ML pipelines</li><li>You'll support architectural leadership, technical support, and advisement services to ensure identity management system technologies are integrated and meeting the appropriate security requirements</li><li>You’ll support leadership who engage with senior level executives at a public facing Federal agency and provide subject matter expertise in security architecture and other key domain areas</li></ul>What you’ll need to succeed:<ul><li>A minimum of 10 years of experience in the Information Technology field, focusing on development projects using DevSecOps and AWS cloud environments</li><li>A bachelor’s degree in Computer Science, Information Technology Management or Engineering, or other comparable degree; or equivalent experience in leu of degree</li><li>Active TS/SCI CI Poly clearance</li><li>At least 8 years of specific experience with full stack engineering (defined as proficient in database development/integration as well as server and client application development/integration), including at least 8 years of experience deploying production enterprise applications in AWS</li><li>Expert-level experience designing, developing, and deploying applications leveraging AWS cloud services in IL6+ classified environments</li><li>Expert experience in large-scale, high-performance enterprise big data application deployment and solution architecture on complex heterogeneous environments in AWS</li><li>Expert experience leading automation, engineering, testing, and implementation tasks in cloud environments, including work across data, AI/ML, infrastructure/operations, and security.</li><li>You have 8+ years of experience with multiple of the following: Go, Python, Java, JavaScript, React, AngularJS, TypeScript, NextJS #CJ</li></ul>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRfST1zt3cDq</div></div>

<h3>Job Description</h3><div>Job Description<div>Red Arch is hiring a Data Engineer to join our team!  Position Detail: As a Data Engineer/Integrator, your role entails collaborating closely with a team of developers to fulfill data integration requirements. This involves writing and maintaining code using an Extract-Transform-Load (ETL) platform to ensure data is transformed into suitable formats as defined by IC ITE initiatives. You will interface with external teams and systems, employing various protocols including HTML and SFTP to collect data efficiently. Additionally, your responsibilities include enhancing the ETL platform by adding features aimed at shortening timelines for future data integration efforts. Beyond coding tasks, you'll develop and maintain software, ensuring seamless integration into a fully functional system. Collaboration with external teams will be necessary to validate data ingest processes. Finally, you'll be responsible for providing comprehensive documentation covering system architecture, development, and any enhancements made throughout the process. Education and Experience:<ul><li>5+ years of professional experience with a Bachelor's degree or equivalent</li><li>3+ years of professional experience with a Master's degree or equivalent</li><li>10+ years of professional experience </li><li>Additional experience will be considered in lieu of a degree</li></ul> Required Quals:<ul><li>Active TS/SCI with with CI Polygraph</li><li>Specialization using the Databricks platform for building, deploying, and managing data and AI solutions </li><li>Experience building ETL pipelines, managing data pipelines, and working with large datasets using tools like Spark, Python, and SQL</li><li>Experience with technologies like Delta Lake, Delta Live Tables, and Databricks Workflows</li></ul> Desired Quals: <ul><li>Experience collaborating with data scientists</li><li>Familiarity with Advana</li><li>Strong Python programming skills</li><li>Solid SQL knowledge for querying and data manipulation</li><li>Cloud platform experience, such as AWS, Azure, etc</li></ul> Work Location: Elkridge, MD Salary range for this position $98,000-$193,000 #CJThe Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRGtyvHRsrnD</div></div>

<h3>Job Description</h3><div>Job Description<div>Position Description Red Arch Solutions is hiring a Senior Software Engineer to join our program in Annapolis Junction, Maryland. The Software Engineer-4 shall be responsible for developing and maintaining a system that manages access to HPC resources in a large multi-tenant containerized Kubernetes Linux environment.   **Up to 16 hours of Telework per week, dependent on tasking.**    Position Required Skills:<ul><li>Active TS/SCI with Polygraph.</li><li>Master's degree in Computer Science or related discipline from an accredited college or university, plus ten (10) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity OR Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus twelve (12) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity OR Fourteen (14) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.</li><li>Experience using the Linux CLI.</li><li>Experience developing and maintaining scripts using Bash/Python.</li><li>Experience installing, configuring, and supporting COTS/GOTS/FOSS software, libraries, and packages in a Linux environment.</li><li>Recent software development experience using Python.</li><li>Experience designing and developing REST interfaces using FastAPI.</li><li>Experience with containerization technologies such as Docker, PodMan, and containerd.</li><li>Experience with container orchestration technologies including Kubernetes.</li><li>Experience administering Kubernetes clusters in an AWS environment.</li><li>Experience with IaC (Infrastructure as Code) concepts, principles and automation tools including Ansible and Terraform.   </li><li>Demonstrated experience using system monitoring tools such as Grafana/Prometheus.</li><li>Experience with CI/CD principles, methodologies, and tools including GitLab.</li><li>Experience using Git Version Control System.</li></ul> Position Desired Skills:<ul><li>Experience with the Atlassian Tool Suite (JIRA, Confluence).</li><li>Familiarity with web technologies including JavaScript, HTML, CSS, and React. </li><li>Familiar with HPC workload management systems including Slurm.</li><li>Experience with ArgoCD, AirFlow, SQL, and JupyterLab.</li><li>Familiar with stream/batch Big Data processing and analytic frameworks including Spark.</li><li>Experience with Identity and Access Management (IAM) solutions including Keycloak.  </li></ul>  Salary range for this position: $230,000 - $265,000 #CJ   The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRXpc4NlgcJj</div></div>

<h3>Job Description</h3><div>Job Description<div>Position Overview:  Red Arch Solutions is hiring an HPC Software Engineer to join a priority program in Annapolis Junction, Maryland.   Position Description: The HPC Software Engineer designs, develops, tests, deploys, documents, maintains, and enhances complex and diverse software for HPC (high performance computing) systems based upon documented requirements. Critical for an HSE is either a very strong math background and/or a very strong computer hardware background. One or both of these is required in order for the HSE to be able to understand the intricacies of the HPC architecture that is being targeted by the software being developed, or to understand the complex mathematical principles which underlie the software applications being developed. The HPC systems might include, but are not limited to, processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and systems which incorporate data repositories, data transport services, and application and systems development and monitoring. Works individually or as part of a team. Reviews and tests software components for adherence to the design requirements and documents test results. Resolves software problem reports. Utilizes software development and software design methodologies appropriate to the development environment. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Open Source Software (OSS) and/or Commercial Off-The-Shelf (COTS)/Government Off-The- Shelf (GOTS) software in place of new development, and requirements analysis and synthesis from system level to individual software components. Working knowledge of Configuration Management (CM) tools and Web Services implementation. Requirements:<ul><li>Active TS/SCI with Polygraph</li><li>Bachelor’s degree in Math, Computer Engineering, Computer Science, or related discipline from an accredited college or university, plus seven (7) years of experience as an HSE in programs and contracts of similar scope, type, and complexity. OR Master’s degree in Math, Computer Engineering, Computer Science, or related discipline from an accredited college or university, plus five (5) years of experience as an HSE in programs and contracts of similar scope, type, and complexity. OR Nine (9) years of experience as an HSE in programs and contracts of similar scope, type, and complexity.</li><li>Linux, Linux tools</li><li>Infrastructure automation technology: Ansible, SaltStack, Puppet, Chef, Terraform, etc.</li><li>Willing and able to learn Ansible </li><li>Adapting to and adhering to project-specific Ansible coding standards</li><li>Familiar with and able to perform full software-development lifecycle support with version-control tools (Git, GitLab)</li><li>Works independently, as well as with a team, to ensure that all components are functioning properly</li><li>Stays abreast of the latest industry trends in both open source and commercial solutions. Supports determination of if-and-when to incorporate them into an IAC solution</li><li>Communicative, collaborative, and organized</li><li>Willing and able to learn new tools, protocols, custom software, firmware, and hardware</li></ul> Desired Skills/Nice to Haves:<ul><li>Programming in Ansible</li><li>Bash scripting</li><li>Python</li><li>Container orchestration technologies</li><li>Rancher Kubernetes Engine 2 (RKE2)</li><li>Best practices in DevSecOps, system administration, infrastructure network services (DNS, DHCP, PXE, NTP, etc.)</li><li>Security concepts pertaining to one or more of: identity and access management (IAM), access control, secrets management, and/or any security products related to these concepts </li><li>Security architecture</li><li>Cloud security</li><li>Red Hat IDM, Keycloak, HashiCorp Vault, Delinea/Centrify</li></ul> Salary range for this position: $180,000 - $189,000 #CJ   The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHR11wvl6wb4t</div></div>

<h3>Job Description</h3><div>Job Description<div>***Active TS/SCI with CI Polygraph Required***Red Arch Solutions is a proven and effective small business integrator and consultant, recognized as a leading provider of IT development to the Federal Government, and primarily focused within the Intelligence Community. Red Arch Solutions is looking for a software engineer to support our client. The scope of this contract relates to maturing and maintaining an IT managed service model, evolving an intelligence organization and its data to a hyperconverged cloud environment, improving the organizational collaboration technology, delivering a more agile operational architecture to the warfighter using commercial technology. As Software Engineer (UI Team) , you’ll bring creative architect solutions to end customers, with the goal to make an impact across the federal government.If you think you can see yourself delivering our mission and pursuing our goals with us, then check out the job description below!What you’ll do:<ul><li>You'll work with AI team members to operationalize data pipelines and ML tasks</li><li>You'll provide day-to-day support of deploying Python-native ML pipelines</li><li>You'll support architectural leadership, technical support, and advisement services to ensure identity management system technologies are integrated and meeting the appropriate security requirements</li><li>You’ll support leadership who engage with senior level executives at a public facing Federal agency and provide subject matter expertise in security architecture and other key domain</li></ul>What you’ll need to succeed:<ul><li>A minimum of 7 years of experience in the Information Technology field, focusing on development projects using DevSecOps and AWS cloud environments</li><li>A bachelor’s degree in Computer Science, Information Technology Management or Engineering, or other comparable degree; or equivalent experience in leu of degree</li><li>Active TS/SCI CI Poly clearance</li><li>At least 6 years of specific experience with full stack engineering (defined as proficient in database development/integration as well as server and client application development/integration), including at least 6 years of experience deploying production enterprise applications in AWS</li><li>Strong, repeat experience designing, developing, and deploying applications leveraging AWS cloud services in IL6+ classified environments</li><li>Proven experience in large-scale, high-performance enterprise big data application deployment and solution architecture on complex heterogeneous environments in AWS</li><li>Strong experience with automation and engineering tasks, implementation, data, infrastructure/operations, and security engineer tasks in cloud environments</li><li>The ability to perform, but not limited to, automation and engineering tasks, testing, implementation, data, AI/ML, infrastructure/operations, and security engineer tasks in cloud environments</li><li>You have 3+ years of experience with multiple of the following: Go, Python, Java, JavaScript, React, AngularJS, TypeScript, NextJS #CJ</li></ul>The Red Arch Solutions pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.Red Arch Solutions Benefits Snapshot:<ul><li>100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.</li><li>HaloScripts Concierge prescription medication service</li><li>Generous PTO.</li><li>10 % 401K 6% match vested day one and up to 4% profit sharing contribution.</li><li>Annualized bonus compensation.</li><li>Spot bonuses for hard work.</li><li>Tuition reimbursement.</li><li>529 College Saving Plan.</li><li>College Loan Pay Back Program.</li><li>11 Paid Federal Holidays</li><li>Generous Referral Bonuses.</li></ul>Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.Have more questions about Red Arch? Email us at Careers@RedArchSolutions.comPowered by JazzHRsa75bwUvam</div></div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Decreasing Comments	Product Metrics	Easy	Very High

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