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JavaScript Developer

NielsenIQ

Office

Lisbon, 11, Portugal

Full Time

Job Description

We are looking for a JavaScript Developer (Survey Programmer) to join our Data Acquisition team.

As part of the team your primary responsibility will be leading development of a web browser surveys, programmed with an external tool that may need JavaScript coding, that collects online data on the behavior of a very large sample of subjects in a secure, privacy-protecting fashion, from personal computers and mobile devices (tablets and mobile phones), in +15 countries.

Responsibilities:

  • Managing the survey processing/programmer supporting delivery of client surveys
  • Ensure all client / internal survey workload is executed.
  • Ensure all survey outputs requirements are met in accordance with commercial / internal specification
  • Ensure the timeline and accuracy of survey data delivery.
  • Serve as link between Nielsen Teams: commercial, consultants, data acquisition.

Qualifications:

  • Experience working with manipulating data, facts or statistics
  • Experience in in-depth survey data processing and manipulation
  • Proven experience with JavaScript, HTML and CSS
  • Knowledge of English (B2+)
  • Proficient in the use of survey applications (Verint EFM or any other survey tools in the market)
  • Good understanding of current survey business, processes, and data including business uses and requirements.
  • General Consumer Panel knowledge a plus
  • Strong analytical skills
  • Strong oral and written communication skills.
  • Strong project management skills
  • Degree in Data Processing, General Business, Computer Science, Statistics, Mathematics, or equivalent degree/experiences

Additional Information

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

NIQ is committed to reflecting the diversity of the clients, communities, and markets we measure within our own workforce. We exist to count everyone and are on a mission to systematically embed inclusion and diversity into all aspects of our workforce, measurement, and products. We enthusiastically invite candidates who share that mission to join us. We are proud to be an Equal Opportunity/Affirmative Action-Employer, making decisions without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability status, age, marital status, protected veteran status or any other protected class. Our global non-discrimination policy covers these protected classes in every market in which we do business worldwide. Learn more about how we are driving diversity and inclusion in everything we do by visiting the NIQ News Center: https://nielseniq.com/global/en/news-center/diversity-inclusion

JavaScript Developer

Office

Lisbon, 11, Portugal

Full Time

August 6, 2025

company logo

NielsenIQ

NielsenIQ