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Peterson Technologies Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Peterson Technologies 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?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team! Peterson is seeking a talented Senior Software Engineer  Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. Bachelor’s degree in Computer Science or related discipline OR four additional years’ software engineering experience At least 20 years’ experience as a software engineer (at least 24 years’ experience if no Bachelor’s degree) Tech Stack: <ul><li>Java + Spring AND/OR Angular (both is best)</li><li>Docker + Kubernetes</li><li>Git</li></ul> Peterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $180,000 - $260,000 depending on experience.Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRoW48eti2RA</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team! Peterson is seeking a talented DevOps Software EngineerJob Description:A Software Development Engineer works on building and maintaining the core Kubernetes platform within AWS, ensuring seamless container orchestration and scalability for AWS customers.   Responsibilities and Skills:<ul><li>Core Kubernetes development: Building and shipping services that enhance Kubernetes' capabilities. </li><li>Scalability and performance: Working with distributed systems and network protocols to ensure optimal performance on a large scale. </li><li>Infrastructure as Code: Designing, deploying, and managing Kubernetes clusters using tools like Terraform and Helm. </li><li>Cloud platform expertise: Proficient in AWS Cloud Platform with system design, application development, testing, and problem-solving. </li><li>Continuous Integration/Delivery: Hands-on experience with CI/CD tools like Jenkins. </li><li>Monitoring and alerting: Setting up monitoring, logging, and alerting for Kubernetes clusters using tools like Grafana, Prometheus, and Splunk. </li><li>SQL skills: Strong knowledge of SQL, especially with databases like PostgreSQL and AWS RDS. </li><li>Programming languages: Proficiency in languages like Java, Go, Python, or C++. </li></ul>Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. Bachelor’s degree in Computer Science or related discipline OR four additional years’ software engineering experience At least 20 years’ experience as a software engineer (at least 24 years’ experience if no Bachelor’s degree) Peterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $180,000 - $260,000 depending on experience.  Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRq1I95ut6F4</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team!  Job Description:The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. A minimum of 7 years of software development experience is required. Desired Experience and/or Skills:  Environment • AWS WorkSpace and EC2 • GitLab • Linux and shell scripts • Docker and Docker Compose • REST clients (web browser, curl) Web • JavaScript (ESM), CSS • JSON files for user test data • Node.js and NPM • Express web server • Vite, React, React Query, Redux • PKI/TLS/SSL certificates (OpenSSL, MADCert) APIs • OpenAPI (Swagger) DevOps • AWS ECS (FarGate) and S3 • GitLab CI/CD, Pipelines • Venom (Test Harness) General • Customer service and tickets *Some telework is allowed. Qualifications - Analyze user requirements to derive software design and performance requirements  - Design and code new software or modify existing software to add new features  - Debug existing software and correct defects  - Integrate existing software into new or modified systems or operating environments - Develop simple data queries for existing or proposed databases or data repositories  - Provide recommendations for improving documentation and software development process standardsPeterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $104,500 - $175,000  Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRjqJfFiJPbP</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team!This position requires an active DoD Security ClearanceJob Description:The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.No demonstrated experience is required. Bachelor’s degree in computer science or related discipline from an accredited college or university is required.Four (4) years of SWE experience on projects with similar software processes may be substituted for a bachelor’s degree. Qualifications - Analyze user requirements to derive software design and performance requirements - Design and code new software or modify existing software to add new features - Debug existing software and correct defects - Integrate existing software into new or modified systems or operating environments - Develop simple data queries for existing or proposed databases or data repositories - Provide recommendations for improving documentation and software development process standardsRequirements:The team has a backlog of software development tasks related to ingestion, processing, storage and display of data. This position requires someone with entry level software development skills and would rely on a more senior member of the team for oversight. Required: • Java • Some source code version management tool (e.g. Git) • Ability to communicate and work within a team Desired • Spring (spring boot, spring data) • Web architecture experience • Database Experience (NoSQL preferred, but RDBMS will suffice)Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability.  Please send your request to HR at jobs@ptech-llc.com or call. Peterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $71,000 - $120,000 depending on experience. Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRY3TD9CDM0V</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team! The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.Qualifications Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required.<ul><li>1-2 years experience with AWS, DevOp, Terraform, Ansible.  </li></ul>Responsibilities<ul><li>Support DevOps activities for a standalone environment. </li></ul>Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability.  Please send your request to HR at jobs@ptech-llc.com or call. Peterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $71,000 - $120,000 depending on experience.  Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.  Powered by JazzHRmJHnHiXlvK</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team! Peterson is seeking a talented full-stack Software Engineer.  Job Description:The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. Bachelor’s degree in Computer Science or related discipline OR four additional years’ software engineering experience At least 20 years’ experience as a software engineer (at least 24 years’ experience if no Bachelor’s degree) Java (11+) Preferred skills:  Groovy, MongoDB, ElasticSearch, Gradle, Ansible, Spring Boot, GIT, Kubernetes, Docker, Maven Qualifications - Analyze user requirements to derive software design and performance requirements  - Design and code new software or modify existing software to add new features  - Debug existing software and correct defects  - Integrate existing software into new or modified systems or operating environments - Develop simple data queries for existing or proposed databases or data repositories  - Provide recommendations for improving documentation and software development process standards Peterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $180,000 - $260,000 depending on experience.  Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRF9YIMIOdhs</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team!  Job Description:The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. Bachelor’s degree in Computer Science or related discipline OR four additional years’ software engineering experience At least 7 years’ experience as a software engineer (at least 11 years’ experience if no Bachelor’s degree) Required Skills: Angular Microservices application Qualifications - Analyze user requirements to derive software design and performance requirements  - Design and code new software or modify existing software to add new features  - Debug existing software and correct defects  - Integrate existing software into new or modified systems or operating environments - Develop simple data queries for existing or proposed databases or data repositories  - Provide recommendations for improving documentation and software development process standardsPeterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $150,000 - $185,000  Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRRTd3oV9Ufj</div></div>

<h3>Job Description</h3><div>Job Description<div>Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software, and expert guidance to reduce exposure to information theft and augment protections for our customers systems.  If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team!  Job Description:The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. 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 Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.Requirements: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. Bachelor’s degree in Computer Science or related discipline OR four additional years’ software engineering experience At least 7 years’ experience as a software engineer (at least 11 years’ experience if no Bachelor’s degree) Java (11+) Qualifications - Analyze user requirements to derive software design and performance requirements  - Design and code new software or modify existing software to add new features  - Debug existing software and correct defects  - Integrate existing software into new or modified systems or operating environments - Develop simple data queries for existing or proposed databases or data repositories  - Provide recommendations for improving documentation and software development process standardsPeterson Technologies provides for an excellent benefit package to include generous PTO, healthcare, STD, LTD, Life Insurance, 401k contribution and Tuition and Training reimbursement.   Salary range = $104,500 - $175,000  Peterson Technologies will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to HR at jobs@ptech-llc.com or call.Peterson Technologies is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.Powered by JazzHRvw4MuIXosa</div></div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

Peterson Technologies Interview Questions

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