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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Expert Data Engineer - **Company:** Adinsights - **Location:** Utrecht, Netherlands - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Airflow, BigQuery, Cloud Database, Information Engineering, Data Sharing, Python (Programming Language), SQL Databases, Kotlin, Data Pipelines - **Published:** September 19, 2026 - **Apply:** https://www.careerjet.nl/job/nl19d0e279d88e114da411850f3ad00c83/eaa ## About the Role Expert-level SQL and Python skills, with strong experience in data modelling and analytical data products - Experience building and operating large-scale data pipelines, preferably with Airflow and dbt or comparable tooling - Strong understanding of cloud data warehouses; BigQuery experience is a plus - A strong focus on data quality, observability, performance, cost and maintainability - Ability to turn complex data from multiple sources into reliable, reusable datasets and metrics - Ability to influence technical decisions and explain trade-offs to engineers, analysts, product managers and stakeholders - Experience raising the data engineering craft level of a team - Experience with advertiser-facing data products, dashboards, APIs, Java or Kotlin is a plus ## Description As an Expert Data Engineer in AdInsights, you are a deep technical expert within the team. You take on the most complex data engineering challenges behind advertiser insights and help the team make strong choices in data modelling, pipeline design, quality, observability and scalability. Your scope is primarily within AdInsights, while you actively align with adjacent teams when shared data definitions, dependencies or reporting consistency require it. You work on the hardest AdInsights data problems: combining data from many sources, improving metric consistency, strengthening data quality, and making sure advertiser-facing dashboards and APIs remain reliable as the advertising business grows. You look beyond the immediate implementation and translate your experience into pragmatic improvements that help the team build better data products. * Define and improve the technical approach for AdInsights data pipelines, models and aggregation logic * Solve complex data engineering challenges in combining advertising and commerce data from multiple sources * Improve data quality, observability, testing and operational reliability within the team * Help the team make better trade-off decisions around performance, scalability, cost and maintainability * Align with adjacent teams on shared datasets, metric definitions, data contracts and dependencies * Bring data engineering knowledge to other engineers and help raise the craft level of the AdInsights team * Act as a technical sparring partner for engineers, analysts and product managers when decisions depend on data engineering depth * Translate relevant data engineering practices and learnings into practical improvements for AdInsights * Take ownership of difficult technical problems while helping others make better technical decisions independently Why you can make a difference Advertisers need confidence that the numbers they see are complete, consistent and timely. In this role, you make that possible by building the data foundations that turn complex source data into metrics they can trust. The quality of the pipelines and models you build directly affects the trust advertisers place in our dashboards and APIs. By making advertising data accurate, consistent and accessible, you help advertisers make better decisions and improve the value they get from advertising on bol., Switch to find out Advertising Impact Driver Your work directly helps advertisers understand campaign performance and make informed decisions. Data Puzzle Solver You enjoy bringing together data from different sources and turning it into clear, reliable insights. Quality-Minded Builder You care about scalable engineering, trustworthy metrics and solutions that remain maintainable as the platform evolves. Where you'll be working You'll join AdInsights, a team in the advertising domain that builds the data foundations behind advertiser insights. The team works on the pipelines, models and services that turn complex advertising and commerce data into reliable campaign performance information. You'll collaborate closely with engineers, analysts, product managers and advertising stakeholders to translate reporting needs into data products that are accurate, scalable and useful in practice. We take pride in our B Corp certification and strive for continuous improvement every day. Our annual bonus is tied to sustainability goals, and we are committed to equality and equal opportunities for all. Perks of having a blue heart 29 days to recharge Travel costs Public transport, car, parking & charging covered Pension plan 75% premium covered Annual bonus ## Related Videos - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Enjoying SQL data pipelines with dbt](https://www.wearedevelopers.com/videos/823-enjoying-sql-data-pipelines-with-dbt) - [Data Governance in the Era of AI](https://www.wearedevelopers.com/videos/1622-data-governance-in-the-era-of-ai) - [Making Data Warehouses fast. 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