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Senior Software Engineer

Nielsen Consumer LLC
United States, Illinois, Chicago
Nov 05, 2025
Company Description

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.

Job Description

We are seeking a seasoned and results-driven Senior Software Engineer to join our high-performing development team. This role is ideal for a backend engineering expert with deep experience in database technologies and a strong track record of building and supporting data-intensive applications. You will play a critical role in designing scalable, high-performance solutions within our Phoenix system, leveraging a modern tech stack including Python, PySpark, PostgreSQL, and Airflow.

This is a strategic opportunity to influence architecture, optimize data workflows, and drive operational excellence in a fast-paced, collaborative environment.

Qualifications
  • 7+ years of professional experience in software engineering, with a focus on backend and data systems.
  • Advanced proficiency in SQL, Python, and PySpark for data processing and application development.
  • Demonstrated expertise in PostgreSQL, including query optimization, indexing, partitioning, and performance tuning.
  • Experience supporting mission-critical, time-sensitive production environments and client-facing data delivery.
  • Strong understanding of RESTful APIs, microservices architecture, and scalable system design.
  • Familiarity with CI/CD pipelines, version control (Git), and DevOps practices.
  • Excellent analytical, problem-solving, and communication skills.
  • Proven ability to lead initiatives, mentor peers, and adapt to evolving technical landscapes.
  • Bachelor's degree in Computer Science, Engineering or related field.

Preferred Qualifications

  • Familiarity with cloud platforms (Azure, AWS, or GCP).
  • Knowledge of testing frameworks and best practices for unit and integration testing.
  • Exposure to Agile/Scrum methodologies.
Additional Information
  • Architect, develop, and maintain robust backend systems for high-volume data processing.
  • Lead the design and optimization of relational and non-relational databases, with a focus on PostgreSQL.
  • Ensure reliability, scalability, and performance of production data pipelines and backend services.
  • Provide hands-on production support, including monitoring, troubleshooting, and resolving issues in time-sensitive, client delivery.
  • Collaborate cross-functionally with Product, QA, Operations, and Design teams to deliver high-impact solutions aligned with business objectives.
  • Apply deep understanding of complex business logic to enhance system capabilities and data workflows.
  • Champion best practices in code quality, performance tuning, and maintainability.
  • Contribute to continuous improvement initiatives across development, deployment, and monitoring processes.

Additional Information

  • Enjoy a flexible and rewarding work environment with peer-to-peer recognition platforms and a collaborative culture.
  • Stay relevant and upskill yourself with career development opportunities and a fast-paced environment.
  • Recharge and revitalize with help of wellness plans made for you and your family.
  • Plan your future with financial wellness tools.

Our Benefits

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

Our Benefits

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

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

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. 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 thehttps://nielseniq.com/global/en/news-center/diversity-inclusion

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