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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Developer - **Company:** Keystone Solutions - **Location:** Aartselaar, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Geographic Information Systems, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Software Applications, HTML5, Automation of Tests, Microsoft Azure, Data Architecture, Dataspaces, Hibernate (Java), Junit, Apache Maven, Microsoft SQL Server, Node.Js, OAuth, Git, AngularJS, Azure AKS, Docker, Microservices - **Published:** September 29, 2026 - **Apply:** https://www.adzuna.be/details/5903598855 ## About the Role * Strong knowledge of the Azure ecosystem (AKS Azure Kubernetes Services, Azure DevOps, etc.) is a significant advantage. * Required experience in Java 17 or 21. * Availability to be on-site 2-3 days a week is essential for the success of the mission., + Agile - Level: Advanced - Most recent: Any time + Angular - Level: Expert - Most recent: This year + Artificial intelligence (AI) - Level: Expert - Most recent: Any time + Azure - Level: Intermediate - Most recent: This year + Azure DevOps - Level: Intermediate - Most recent: Any time + Azure Kubernetes Service - AKS - Level: Intermediate - Most recent: This year + Data Architecture - Level: Intermediate - Most recent: Any time + Docker - Level: Intermediate - Most recent: Any time + GIS - Level: Intermediate - Most recent: Any time + GIS data types - Level: Intermediate - Most recent: Any time + GIT - Level: Advanced - Most recent: This year + Hibernate - Level: Advanced - Most recent: This year + HTML5 - Level: Advanced - Most recent: This year + Java - Level: Expert - Most recent: This year + JUnit - Level: Advanced - Most recent: This year + Maven - Level: Advanced - Most recent: This year + Microservices - Level: Intermediate - Most recent: This year + MS SQL Server - Level: Intermediate - Most recent: Any time + Node.js - Level: Intermediate - Most recent: This year + OAuth - Level: Intermediate - Most recent: Any time + Open API - Level: Intermediate - Most recent: This year, Dutch Level Native or bilingual proficiency English Level Professional working proficiency ## Description * Collaborate with the existing Product Team ROSI to develop customer-oriented applications for cities and municipalities, create overarching connecting applications, and organize data spaces within the water sector. * Support the existing central Build Factory (Shared Services) by providing IT-for-IT applications or assistance to product teams, developing evolutions within AKS, designing test frameworks, supporting the AI evolution roadmap, and preparing and researching other technical themes through POCs., * Consultancy Nature: Engage in on-site work and embrace your identity as a consultant. * Dynamic Projects: Tackle a variety of challenges across different client environments. * Turbo-Charged Learning: Experience professional development and broad learning opportunities. * Skyrocketing Ambition: Commit to your career growth within our framework. * Values: As a If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal. Duration: As soon as possible - 31/12/2027 16 months (full time) ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Can SVG be fast? 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