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People Tech Group Inc Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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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?

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?

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?

People Tech Group Inc Salaries by Position

Job Title: Java Developer — Backend Location: Hyderabad, Telangana, India Employment Type: Full-TimeCompany Overview: We are a forward-thinking software engineering team dedicated to delivering high-quality, scalable applications for clients across industries. We emphasize clean code, robust architecture, end-to-end ownership, and continuous improvement. Our culture encourages collaboration, learning, and shared responsibility.Position Summary: We are looking for a talented and experienced Java Developer to join our backend engineering team. In this role, you'll design, develop, and maintain backend services and APIs, leveraging cloud-native technologies to build scalable, reliable, and high-performance systems. Although the focus is on backend development, there may be opportunities to contribute to frontend tasks when technical needs arise. You will collaborate closely with cross-functional teams — architects, frontend developers, QA, and DevOps — to ensure the successful delivery of features from conception to production.Key Responsibilities:<ul><li>Design, develop, and maintain backend services and RESTful APIs using Java (Java 8+) and frameworks such as Spring Boot and Hibernate.</li><li>Build scalable, cloud-native applications by leveraging AWS services (EC2, S3, RDS, Lambda, API Gateway, DynamoDB, and other relevant tools).</li><li>Collaborate with cross-functional teams to define system architecture, ensuring that solutions meet requirements for performance, scalability, security, and maintainability.</li><li>Troubleshoot, debug, and optimize backend services; monitor performance, fix bugs, and implement improvements over time.</li><li>Optionally contribute to frontend development using modern JavaScript frameworks (React, Angular, Vue.js) when needed.</li><li>Maintain clear and up-to-date documentation for all code, APIs, and system design decisions.</li><li>Participate in code reviews, adhere to coding standards, and follow best practices for version control (e.g., Git), branching strategies, and CI/CD workflows.</li><li>Work with DevOps or infrastructure teams — if applicable — to support containerization (Docker), orchestration (Kubernetes), deployments, and automated builds.</li><li>Use caching strategies (e.g., Redis, Memcached), background processing or message queues, and database optimizations where relevant to ensure application efficiency.</li><li>Apply agile methodologies: attend sprint planning sessions, contribute to backlog grooming, and track tasks using tools like JIRA.</li></ul>Required Qualifications & Skills:<ul><li>Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).</li><li>Minimum 3–4 years of professional experience developing backend systems using Java (Java 8+).</li><li>Solid hands-on experience with Spring Boot and Hibernate (or equivalent ORM frameworks).</li><li>Strong understanding of RESTful API design, microservices architecture, and design patterns.</li><li>Proficiency with AWS cloud services (EC2, S3, RDS, Lambda, API Gateway, DynamoDB, etc.).</li><li>Familiarity with relational databases (e.g., MySQL, PostgreSQL) and/or NoSQL databases, with experience in writing efficient queries and schema design.</li><li>Experience using version control (Git), and working with CI/CD pipelines (e.g., Jenkins, GitLab CI, GitHub Actions).</li><li>Good communication skills, ability to collaborate with cross-functional teams, and strong problem-solving mindset.</li></ul>Preferred / Nice-to-Have Skills:<ul><li>Certifications such as AWS Certified Developer – Associate (or equivalent).</li><li>Experience with containerization (Docker) and orchestration tools (e.g. Kubernetes).</li><li>Familiarity with caching systems (Redis, Memcached), message queues, and background job processing.</li><li>Experience or willingness to contribute to frontend development using modern frameworks (React, Angular, Vue).</li><li>Exposure to full-stack development — ability to manage end-to-end feature delivery from backend to frontend and deploy to production.</li><li>Experience working in Agile environments, using tools like JIRA, Confluence, and collaborating in sprints.</li></ul>

We have an excellent job opportunity for a Java Developer role at our organization, People Tech Group. Work Mode _ 5 Days work from Office. Job Description:Job Title: Java Developer Experience: 4+ YearsLocation: HyderabadJob Type: Full-Time Job Summary: We are seeking a talented Java Developer with expertise in building robust, scalable backend systems and proficiency in AWS Cloud services. While backend development is the primary focus, candidates with experience in frontend technologies will be given an advantage. This role offers an opportunity to work on end-to-end application development and collaborate with a dynamic team to deliver high-quality solutions. Key Responsibilities: <ul><li>Design, develop, and maintain backend services and APIs using Java and related frameworks.</li><li>Leverage AWS cloud services (e.g., EC2, S3, RDS, Lambda) to build scalable and reliable systems.</li><li>Collaborate with cross-functional teams to define system architectures and implement solutions.</li><li>Ensure high performance, security, and responsiveness of applications.</li><li>Debug and resolve backend issues, ensuring code quality and maintainability.</li><li>Contribute to frontend development tasks if required, utilizing frameworks like React or Angular.</li><li>Maintain clear documentation for code and processes. </li></ul> Key Skills and Qualifications: <ul><li>Bachelor’s degree in computer science, Engineering, or a related field.</li><li>3+ years of experience in backend development with Java (Java 8+ preferred).</li><li>Expertise in frameworks such as Spring Boot and Hibernate.</li><li>Proficiency with AWS services like EC2, S3, RDS, Lambda, API Gateway, and DynamoDB.</li><li>Strong understanding of RESTful API design, microservices architecture, and design patterns.</li><li>Hands-on experience with CI/CD tools (e.g., Jenkins, Git, or similar).</li><li>Familiarity with containerization tools (Docker) and orchestration systems (Kubernetes) is a plus.</li><li>Basic understanding or working experience with frontend technologies like React, Angular, or Vue.js.</li><li>Strong communication and problem-solving skills with a collaborative mindset.</li></ul> Preferred Qualifications:<ul><li>AWS certifications (e.g., AWS Certified Developer – Associate).</li><li>Experience with Agile methodologies and tools like JIRA.</li><li>Knowledge of database systems (SQL and NoSQL) and caching mechanisms (Redis, Memcached).</li><li>Experience in full-stack development is a significant advantage.</li></ul> Why Join Us?People Tech Group has significantly grown over the past two decades, focusing on enterprise applications and IT services. We are headquartered in Bellevue, Washington, with a presence across the USA, Canada, and India. We are also expanding to the EU, ME, and APAC regions. With a strong pipeline of projects and satisfied customers, People Tech has been recognized as a Gold Certified Partner for Microsoft and Oracle.Benefits:<ul><li>Competitive wages with private healthcare cover.</li><li>Incentives for certifications and educational assistance for relevant courses.</li><li>Support for family with maternity leave.</li><li>Complimentary daily lunch and participation in employee resource groups.</li></ul>

People Tech Group is a leading Enterprise Solutions, Digital Transformation, Data Intelligence, and Modern Operations services provider. Founded in 2006 in Redmond, Washington, USA, we have expanded our presence across India—Hyderabad, Bangalore, Pune, and Chennai—growing to a 3000+ strong workforce. We operate across 4 countries: US, Canada, India, and Costa Rica.A recent milestone in our journey is our acquisition by Quest Global, one of the world’s largest engineering solutions providers with 20,000+ employees and 70+ Global Delivery Centers, headquartered in Singapore. Going forward, we are proud to be part of the Quest Global family.???? Hiring: Senior AWS Data Engineer (8+ Years) ???????? Role SummaryWe are seeking an experienced Senior AWS Data Engineer to design, develop, and optimize enterprise-grade data platforms. The ideal candidate will have strong expertise in AWS analytics services, PySpark, ETL/ELT frameworks, and modern data architectures, with experience working in secure and regulated environments including ITAR.???? Key Responsibilities<ul><li>Design and optimize scalable Data Lakes & Data Warehouses on AWS</li><li>Build and maintain ETL/ELT pipelines using PySpark, Glue, Lambda, and APIs</li><li>Implement Medallion Architecture (Bronze–Silver–Gold)</li><li>Develop ingestion frameworks for API, JSON, Parquet, Iceberg</li><li>Build analytics layers using Athena, Redshift, S3, Glue Catalog</li><li>Implement IAM policies, encryption standards, governance & ITAR compliance</li><li>Provision infrastructure using Terraform (IaC)</li><li>Enable CI/CD automation using Git, GitHub Actions, CodePipeline</li><li>Perform performance tuning, cost optimization, and pipeline scalability improvements</li><li>Troubleshoot ingestion, transformation, and consumption layer issues</li></ul>???? Required Skills & Experience<ul><li>8+ years of experience in AWS Data Engineering</li><li>Strong hands-on experience with S3, Glue, Athena, Redshift, IAM</li><li>Expertise in PySpark, ETL/ELT, and Data Lake/Warehouse design</li><li>Experience with Medallion Architecture</li><li>Good knowledge of API, JSON, Parquet, Iceberg formats</li><li>Hands-on with Terraform, CI/CD pipelines, DevOps practices</li><li>Understanding of ITAR compliance and secure data handling</li></ul>➕ Good to Have<ul><li>Experience with Apache Airflow / MWAA</li><li>Exposure to Delta Lake / Hudi / Iceberg</li><li>Familiarity with Glue Data Catalog</li><li>Experience working in regulated environments</li></ul>

Job Summary: We are seeking a talented Java Developer with expertise in building robust, scalable backend systems and proficiency in AWS Cloud services. While backend development is the primary focus, candidates with experience in frontend technologies will be given an advantage. This role offers an opportunity to work on end-to-end application development and collaborate with a dynamic team to deliver high-quality solutions. Key Responsibilities: <ul><li>Design, develop, and maintain backend services and APIs using Java and related frameworks.</li><li>Leverage AWS cloud services (e.g., EC2, S3, RDS, Lambda) to build scalable and reliable systems.</li><li>Collaborate with cross-functional teams to define system architectures and implement solutions.</li><li>Ensure high performance, security, and responsiveness of applications.</li><li>Debug and resolve backend issues, ensuring code quality and maintainability.</li><li>Contribute to frontend development tasks if required, utilizing frameworks like React or Angular.</li><li>Maintain clear documentation for code and processes. </li></ul>Key Skills and Qualifications: <ul><li>Bachelor’s degree in computer science, Engineering, or a related field.</li><li>3+ years of experience in backend development with Java (Java 8+ preferred).</li><li>Expertise in frameworks such as Spring Boot and Hibernate.</li><li>Proficiency with AWS services like EC2, S3, RDS, Lambda, API Gateway, and DynamoDB.</li><li>Strong understanding of RESTful API design, microservices architecture, and design patterns.</li><li>Hands-on experience with CI/CD tools (e.g., Jenkins, Git, or similar).</li><li>Familiarity with containerization tools (Docker) and orchestration systems (Kubernetes) is a plus.</li><li>Basic understanding or working experience with frontend technologies like React, Angular, or Vue.js.</li><li>Strong communication and problem-solving skills with a collaborative mindset.</li></ul>Preferred Qualifications:<ul><li>AWS certifications (e.g., AWS Certified Developer – Associate).</li><li>Experience with Agile methodologies and tools like JIRA.</li><li>Knowledge of database systems (SQL and NoSQL) and caching mechanisms (Redis, Memcached).</li><li>Experience in full-stack development is a significant advantage.</li></ul>

Job Title: Data EngineerLocation: HyderabadExperience: 5+Years (Work from Office) Job Summary:We are looking for a skilled and experienced Data Engineer with over 5 years of experience in data engineering and data migration projects. The ideal candidate should possess strong expertise in SQL, Python, data modeling, data warehousing, and ETL pipeline development. Experience with big data tools like Hadoop and Spark, along with AWS services such as Redshift, S3, Glue, EMR, and Lambda, is essential. This role provides an excellent opportunity to work on large-scale data solutions, enabling data-driven decision-making and operational excellence. Key Responsibilities:• Design, build, and maintain scalable data pipelines and ETL processes.• Develop and optimize data models and data warehouse architectures.• Implement and manage big data technologies and cloud-based data solutions.• Perform data migration, data transformation, and integration from multiple sources.• Collaborate with data scientists, analysts, and business teams to understand data needs and deliver solutions.• Ensure data quality, consistency, and security across all data pipelines and storage systems.• Optimize performance and manage cost-efficient AWS cloud resources. Basic Qualifications:• Master’s degree in computer science, Engineering, Analytics, Mathematics, Statistics, IT, or equivalent.• 5+ years of experience in Data Engineering and data migration projects.• Proficient in SQL and Python for data processing and analysis.• Strong experience in data modeling, data warehousing, and building data pipelines.• Hands-on experience with big data technologies like Hadoop, Spark, etc.• Expertise in AWS services including Redshift, S3, AWS Glue, EMR, Kinesis, Firehose, Lambda, and IAM.• Understanding of ETL development best practices and principles. Preferred Qualifications:• Knowledge of data security and data privacy best practices.• Experience with DevOps and CI/CD practices related to data workflows.• Familiarity with data lake architectures and real-time data streaming.• Strong problem-solving abilities and attention to detail.• Excellent verbal and written communication skills.• Ability to work independently and in a team-oriented environment. Good to Have:• Experience with orchestration tools like Airflow or Step Functions.• Exposure to BI/Visualization tools like QuickSight, Tableau, or Power BI.• Understanding of data governance and compliance standards.

Job Description:Job Title: Java Developer Experience: 3+ YearsLocation: BengaluruJob Type: Full-Time Job Summary: We are seeking a talented Java Developer with expertise in building robust, scalable backend systems and proficiency in AWS Cloud services. While backend development is the primary focus, candidates with experience in frontend technologies will be given an advantage. This role offers an opportunity to work on end-to-end application development and collaborate with a dynamic team to deliver high-quality solutions. Key Responsibilities: <ul><li>Design, develop, and maintain backend services and APIs using Java and related frameworks.</li><li>Leverage AWS cloud services (e.g., EC2, S3, RDS, Lambda) to build scalable and reliable systems.</li><li>Collaborate with cross-functional teams to define system architectures and implement solutions.</li><li>Ensure high performance, security, and responsiveness of applications.</li><li>Debug and resolve backend issues, ensuring code quality and maintainability.</li><li>Contribute to frontend development tasks if required, utilizing frameworks like React or Angular.</li><li>Maintain clear documentation for code and processes. </li></ul>Key Skills and Qualifications: <ul><li>Bachelor’s degree in computer science, Engineering, or a related field.</li><li>3+ years of experience in backend development with Java (Java 8+ preferred).</li><li>Expertise in frameworks such as Spring Boot and Hibernate.</li><li>Proficiency with AWS services like EC2, S3, RDS, Lambda, API Gateway, and DynamoDB.</li><li>Strong understanding of RESTful API design, microservices architecture, and design patterns.</li><li>Hands-on experience with CI/CD tools (e.g., Jenkins, Git, or similar).</li><li>Familiarity with containerization tools (Docker) and orchestration systems (Kubernetes) is a plus.</li><li>Basic understanding or working experience with frontend technologies like React, Angular, or Vue.js.</li><li>Strong communication and problem-solving skills with a collaborative mindset.</li></ul>Preferred Qualifications:<ul><li>AWS certifications (e.g., AWS Certified Developer – Associate).</li><li>Experience with Agile methodologies and tools like JIRA.</li><li>Knowledge of database systems (SQL and NoSQL) and caching mechanisms (Redis, Memcached).</li><li>Experience in full-stack development is a significant advantage.</li></ul>

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

People Tech Group Inc Interview Questions

People Tech Group Inc Interview Guides

People Tech Group Inc Interview Questions

People Tech Group Inc Salaries by Position

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