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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 3954 Senior Data Engineer - **Company:** Contact One Communications, Inc. - **Location:** Den Haag, Netherlands - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Data Validation, Information Engineering, Data Governance, Data Infrastructure, Extract Transform Load (ETL), Data Sharing, Data Structures, Python (Programming Language), Meta-Data Management, Systems Integration, Data Processing, Apache Spark, Information Technology, Apache Kafka, Data Management, Data Pipelines - **Published:** July 12, 2026 - **Apply:** https://nl.indeed.com/viewjob?jk=0eff3a993c018b41 ## About the Role * The candidate must have a currently active NATO SECRET security clearance * The service contractor will be required to have a Bachelor of Science (BSc) degree at a nationally recognized/certified university in a technical subject with substantial Information Technology (IT) content and 3 years post-related experience. As an exception, the lack of a university degree may be compensated by the demonstration of a candidate's particular abilities or experience that are of interest to the NCI Agency; namely, at least 5 years of extensive and progressive experience in the duties related to the functions of this post. * The service contractor will be required to have strong technical depth in modern data engineering and platform integration. The principal skill areas required are: * Data engineering, including Python, Spark, Kafka, ETL/ELT pipelines, and automation * Data modelling, ontology engineering, and semantic interoperability * Metadata management and data governance * Data quality frameworks and validation mechanisms * Data platform integration and build/configuration practices * Knowledge of federated data environments and, where possible, defense or mission-oriented data-sharing contexts. Desirable: * Prior experience of working in an international environment comprising both military and civilian elements. * Knowledge of NATO organization, internal structure and resultant relationships. ## Description Data management * Devises and implements master data management processes for specific subsets of data. * Assesses the integrity of data from multiple sources. * Provides advice on the transformation of data from one format/medium to another. * Maintains and implements information handling procedures. * Enables the availability, integrity and searchability of information through the application of formal data and metadata structures and protection measures. Data modelling and design * Applies standard data modelling and design techniques based upon a detailed understanding of requirements. * Establishes, modifies and maintains data structures and associated components. * Communicates the details of data structures and associated components to others using the data structures and associated components. Data engineering * Applies data engineering standards and tools to create and maintain data pipelines and extract, transform and load data. * Carries out routine data quality checks and remediation. ## Related Videos - [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) - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [Smart City, Smart Mobility](https://www.wearedevelopers.com/videos/954-smart-city-smart-mobility) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Let's Get Started With Apache Kafka® for Python Developers](https://www.wearedevelopers.com/videos/565-let-s-get-started-with-apache-kafka-for-python-developers) ## Related Articles - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)