Senior Software Engineer - Java, Python & AI Developer

NielsenIQ; Chennai; On-site; INR 900,000 - 1,500,000; Full time

Benefits offered by this job

Flexible working environment

Volunteer time off

LinkedIn Learning

Job summary

NIQ is hiring a Software Engineer (Java, Python, AI) to design and deliver scalable services and guide junior engineers. You will work across Java, Spring Boot, Python, and AI-driven components, building REST APIs and data processing pipelines deployed on Azure with Docker and Kubernetes.

The role emphasizes SOLID design, unit testing with JUnit/Mockito, and collaboration with cross-functional teams to ship new features and improve software quality.

Qualifications

• 2–4 years of strong working experience in core technical discipline: Java, Spring Boot, RDBMS, NoSQL
• Solid experience with Python and NumPy for building data-oriented services
• Strong experience with common software design patterns (e.g., Adapter, Strategy, Template Method)
• Strong experience in designing, building, and consuming REST APIs efficiently; experience building and operating Flask APIs
• Good experience using AI-assisted tools in the SDLC
• Experience in code execution best practices (memory footprint, GC) and database query analysis (explain plan)
• Hands-on experience in messaging and queuing
• Proficiency in JUnit; experience with API integration testing using Postman
• Experience in quality gates and security tools integration in CI/CD processes
• Hands-on experience with Docker, Kubernetes, and Azure Cloud services
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork skills
• Familiarity with Agile development methodologies

Responsibilities

• Design and develop modular software components in Java, Spring Boot, and Python
• Write optimized, reusable, and scalable code following SOLID principles
• Build application components with multi-threading and asynchronous programming
• Design, build, and consume REST APIs with Spring Boot and Flask
• Write and run unit tests with JUnit and Mockito; perform API integration testing
• Implement CI/CD pipelines to deploy applications with a high quality gate maturity
• Implement security best practices (input validation, authentication, authorization)
• Deploy and operate applications on Azure Cloud using Docker and Kubernetes
• Collaborate with cross-functional teams to design and ship new features
• Troubleshoot and resolve issues in development, test, and production environments
• Explain technical concepts clearly to others
• Mentor junior engineers through code reviews and pairing

Skills

Java

Spring Boot

Python

NumPy

REST APIs

Flask

Azure

JUnit

Mockito

Docker

Kubernetes

Tools

Postman

Azure Cloud Services

Job description

Software Engineer (Java, Python & AI Developer) Job Description

About Job

Software Engineer (Java, Python, Microservices, Gen AI)

We are seeking a Senior Software Engineer with solid technical depth to deliver scalable services and guide junior engineers, working with Java, Spring Boot, Python (NumPy), REST APIs, Flask APIs, and Azure.

Responsibilities

• Design and develop maintainable, modular software components in Java, Spring Boot, and Python
• Write optimized, reusable, and scalable code that follows SOLID/equivalent principles
• Build application components applying multi-threading, concurrency models, and asynchronous programming principles
• Design, build, and consume REST APIs with Spring Boot and Flask; build Python/NumPy-based data processing components where applicable
• Solve technical problems considering common practice and procedures; determine appropriate action by analyzing possible solutions and their impact on the function/business
• Provide informal guidance to new and junior team members through code reviews and pairing
• Understand how the team’s work integrates with other closely related teams and account for interdependencies
• Write and execute unit tests using JUnit and Mockito; perform API integration testing
• Implement CI/CD pipelines to build and deploy applications; maintain a high level of quality maturity in pipeline quality gates
• Implement security best practices (input validation, authentication, authorization, OWASP guidelines)
• Deploy and operate applications on Azure Cloud using Docker and Kubernetes
• Collaborate with cross-functional teams to define, design, and ship new features
• Troubleshoot and resolve issues in development, test, and production environments
• Explain technical, sometimes complex and dynamic concepts clearly to others

Qualifications

• 2-4 years of strong working experience in core technical discipline: Java, Spring Boot, RDBMS, NoSQL
• Solid experience with Python and NumPy for building data-oriented services
• Strong experience with common software design patterns (e.g., Adapter, Strategy, Template Method)
• Strong experience in designing, building, and consuming REST APIs efficiently; experience building and operating Flask APIs
• Good experience using AI-assisted tools in the SDLC
• Experience in code execution best practices (memory footprint, GC) and database query analysis (explain plan, statistics)
• Hands-on experience in messaging and queuing
• Proficiency in JUnit; experience with API integration testing using Postman
• Experience in quality gates and security tools integration in CI/CD processes
• Hands-on experience with Docker, Kubernetes, and Azure Cloud services
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork skills
• Familiarity with Agile development methodologies

Additional Information

Our Benefits

• Flexible working environment
• Volunteer time off
• LinkedIn Learning
• Employee-Assistance-Program (EAP)

NIQ may utilize artificial intelligence (AI) tools at various stages of the recruitment process, including résumé screening, candidate assessments, interview scheduling, job matching, communication support, and certain administrative tasks that help streamline workflows. These tools are intended to improve efficiency and support fair and consistent evaluation based on job-related criteria. All use of AI is governed by NIQ's principles of fairness, transparency, human oversight, and inclusion. Final hiring decisions are made exclusively by humans. NIQ regularly reviews its AI tools to help mitigate bias and ensure compliance with applicable laws and regulations. If you have questions, require accommodations, or wish to request human review were permitted by law, please contact your local HR representative. For more information, please visit NIQ’s AI Safety Policies and Guiding Principles: https://nielseniq.com/global/en/info/niqs-ai-safety-policies/

About NIQ

NIQ is the world’s leading consumer intelligence company, delivering the most complete understanding of consumer buying behavior and revealing new pathways to growth. In 2023, NIQ combined with GfK, bringing together the two industry leaders with unparalleled global reach. With a holistic retail read and the most comprehensive consumer insights—delivered with advanced analytics through state-of-the-art platforms—NIQ delivers the Full View. NIQ is an Advent International portfolio company with operations in 100+ markets, covering more than 90% of the world’s population. For more information, visit NIQ.com

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Our commitment to Diversity, Equity, and Inclusion

NIQ is steadfast in our commitment to fostering an inclusive workplace that mirrors the rich diversity of the communities and markets we serve. We believe that embracing a wide range of perspectives drives innovation and excellence. All employment decisions at NIQ are made without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, marital status, veteran status, or any other characteristic protected by applicable laws. We invite individuals who share our dedication to inclusivity and equity to join us in making a meaningful impact. To learn more about our ongoing efforts in diversity and inclusion, please visit the https://nielseniq.com/global/en/news-center/diversity-inclusion Experience Level Mid Level