Senior Software Development Engineer (Python)

Senior Software Engineer (Python, FastAPI, SQL and AI/ML), Chennai.
Our team specializes in data engineering, analytics, and data-driven solution development, focusing on transforming large volumes of raw data into meaningful business insights. The team is responsible for designing and maintaining data processing pipelines that involve data ingestion, validation, cleansing, transformation, and analysis across multiple data sources. Using advanced statistical and algorithmic techniques, the team develops and executes complex data processing workflows to derive high-quality, actionable datasets that support business decision-making. The work is predominantly carried out using Python and R, leveraging their rich ecosystems for data manipulation, analytics, automation, and model development.
Design, develop, test, and deploy scalable backend applications and services using Python and modern frameworks such as FastAPI.
Develop, optimize, and maintain database solutions using PostgreSQL including data modeling, schema design, query optimization, stored procedures, and performance tuning.
Implement comprehensive logging, exception handling, monitoring, and observability solutions to ensure system reliability and operational excellence.
Write clean, efficient, maintainable, and well-documented code following established coding standards and best practices.
Participate actively in code reviews, technical design discussions, architectural reviews, and Agile/Scrum ceremonies.
Troubleshoot application and production issues, perform root-cause analysis, and implement reliable, long-term solutions.
Utilize AI-powered development tools such as GitHub Copilot, VS Code AI extensions, and similar technologies to improve developer productivity, code quality, and delivery efficiency.
Collaborate closely with product managers, architects, and cross-functional teams to deliver high-quality software solutions aligned with business objectives.
Proven hands-on experience as a Backend Engineer with strong proficiency in Python (3.10+)
Extensive experience in designing, developing, and maintaining RESTful APIs using FastAPI.
Strong expertise in writing, optimizing, and troubleshooting SQL queries, stored procedures, functions, and other database objects.
Ability to develop clean, scalable, well-structured, and maintainable code following software engineering best practices.
Demonstrates a high degree of ownership, accountability, and responsibility in delivering quality solutions within timelines.
Exposure to Artificial Intelligence (AI) technologies and an understanding of leveraging AI capabilities to enhance productivity, automation, and business outcomes is highly desirable.
Experience using AI-powered developer tools such as GitHub Copilot, VS Code AI extensions, or similar coding assistants is an added advantage.
Working knowledge of React and front-end development for building modern user interfaces is a plus.

Flexible working environment
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. All use of AI is governed by NIQ’s principles of fairness, transparency, human oversight, and inclusion. 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:
NIQ is the world’s leading consumer intelligence company, delivering the most complete understanding of consumer buying behavior and revealing new pathways to growth. 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.
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Our commitment to Diversity, Equity, and Inclusion
At NIQ, we are steadfast in our commitment to fostering an inclusive workplace that mirrors the rich diversity of the communities and markets we serve. 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. To learn more about our ongoing efforts in diversity and inclusion, please visit the