> Markdown version of [/jobs/ext/3809318-senior-sas-bi-developer](https://www.wearedevelopers.com/jobs/ext/3809318-senior-sas-bi-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior SAS BI Developer - **Company:** EngiFlex - **Location:** Brussel, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Excel, Data Analysis, Unit Testing, Batch Processing, Data Integration, Extract Transform Load (ETL), Data Warehousing, Relational Databases, JSON, PostgreSQL, Oracle (Applications), SAS (Software), SAS/Base, SQL Databases, Extensible Markup Language (XML), Data Processing, Integration Tests - **Published:** October 18, 2026 - **Apply:** https://www.careerjet.be/jobad/bea614d21ae6302de785fb70ce84b60a30 ## About the Role * You have at least 5 years of hands-on experience in SAS development within Data Warehouse environments. * You have strong knowledge of SAS Base, including DATA Step, PROC SQL, SAS Macro Language, and advanced SAS programming techniques. * You have solid experience with SAS ETL and regard SAS Base, SAS ETL, and SAS Macro as core tools in your daily work. * You are used to working with Oracle, SQL, and relational databases such as PostgreSQL. * You have practical experience with file handling and integration of formats such as Excel, XML, JSON, XLSX, CSV, and flat files in SQL-based processing. * You understand ETL concepts and data integration processes well. * You have proven experience in analysing, maintaining, and optimizing existing SAS applications and programs. * You can interpret and implement complex business rules. * You work analytically and in a structured way, show autonomy and ownership, and communicate effectively with the team. * You quickly understand existing applications and business processes, and you approach issues in a pragmatic, results-oriented manner. Languages * Fluent in French and/or Dutch, both spoken and written. * You can read and understand technical documentation in English. ## Description To reinforce a BI/DWH team, we are looking for an experienced SAS developer who will contribute to a broad landscape of SAS applications and data processing solutions used by several public-sector organizations. You will work in an established environment and take an active role in development, testing, production support, maintenance, and optimization. The focus of the assignment is mainly on the upkeep and evolution of existing SAS applications, complemented by ad hoc developments based on business needs. Responsibilities * Analyse business and functional requirements together with analysts. * Develop, test, and maintain SAS Base applications and data processing programs. * Build, improve, and optimize ETL processes in a DWH context. * Carry out unit tests and support integration testing activities. * Provide corrective and evolutionary maintenance for existing applications. * Improve the performance, reliability, and maintainability of SAS programs and batch processes. * Create and update technical and functional documentation. * Collaborate closely with analysts, architects, data engineers, and fellow developers.