Senior.NET for Android Developer

We are looking for a senior .
NET for android developer who will take ownership of designing and building high-quality, well-tested software solutions within the Transport Execution Management domain. You will work closely with the solution designer and business stakeholders to translate ideas into effective, reliable applications, gaining a deep understanding of the business context along the way. Beyond strong technical expertise, we are looking for someone who shows initiative, communicates clearly, contributes actively to the team, and is willing to go the extra mile when needed. You are respectful and calm in your interactions. Independence is key in this role: taking full responsibility for delivering complete solutions is part of your daily work. At the same time, you value teamwork and knowledge sharing. In line with the PROS values of SNCB, you bring professionalism and a constructive attitude that helps the team move forward. Our applications are built using .
NET for Android. We are open to candidates with native Android knowledge and generic .
NET knowledge willing to immerse themselves in .
NET for Android. Conformity criteria

Android development: more than 5 years of experience. Experience either with .
NET for Android or with native Android development is allowed. .
NET development: more than 3 years of experience Proven experience in unit testing code on at least 3 different projects Demonstrable experience with Clean Code, Clean Architecture and SOLID principles on at least 3 different projects Minimum 2 days onsite in Brussels You communicate fluently in English and Dutch or English and French (spoken and written). Dutch or French as a mother tongue or at least C2 level. For English at least level C1 Evaluation criteria

For each evaluation criterion, the expectation is that your CV clearly demonstrates relevant experience or knowledge through one or more examples/projects. The more relevant experience or knowledge you can provide as evidence, the better your CV will be evaluated. .
NET development – demonstrates strong mastery of the .
NET ecosystem, including language features, LINQ, async/await, security practices, data structures and design patterns. Android development – understands Android UI layouts, components, responsive/adaptive design and native platform integration. Android internals – understands activity/fragment lifecycle, services, background work, push notifications, WorkManager and native SDK behavior. Code quality & craftsmanship – writes clean, maintainable and SOLID code that follows proven engineering practices. Unit testing & test quality – creates meaningful, maintainable and automated unit tests. API integration & offline/online synchronization – integrates reliably with backend APIs and designs Android applications that can handle offline usage, local persistence, synchronization, conflict handling and recovery when connectivity is restored. Git & version control – applies branching strategies and collaborates efficiently using Git. Collaboration & communication – explains technical choices clearly.