Detect common anti-bot measures (like JavaScript checks or browser behavior detection) to build crawlers that adjust to appear more human-like
Set up anomaly detection and monitoring to detect blockers or failures early
5+ years of experience with Python and large-scale scraping projects
~ Deep understanding of anti-bot technologies and how to bypass them, fingerprinting, WAFs, JavaScript challenges, etc
~ Experience working with Scrapy , Requests , , Selenium , Playwright , or custom headless browser drivers
~ Skilled at handling proxies (residential, datacenter, rotating), session management, cookie injection, and TLS tweaking
~ Familiarity with structured storage formats (Parquet, Avro), or real-time stream processing
~ Good knowledge of databases like MongoDB, InfluxDB, and Redis, including how they work and how to optimize them

Comfortable building and maintaining distributed task queues (Celery, Kafka, etc.)
Exposure to Linux or cloud environments (AWS, GCP, etc.)
Basic understanding of Kubernetes, Cloud Run, and Cloud Functions to deploy and orchestrate scraping workloads
Why Join NIQ Digital shelf
You'll work with people who are truly passionate about data and know how to use it well
you'll write about it
Friendly and transparent work culture,



competitive salary, flexible hours, and the chance to grow fast in a high-impact role
Flexible working environment
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. If you have questions, require accommodations, or wish to request human review were permitted by law, please contact your local HR representative. 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 integral 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.
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📌 Senior Software Engineer (Web Scraping, Data acquisition, Data collection) (Madrid)
🏢 NielsenIQ
📍 Madrid