**Are you ready to revolutionise the world with TEKEVER?** At TEKEVER, we lead innovation in Europe as the European leader in unmanned technology, where cutting\-edge advancements meet unparalleled innovation. Digital \| Defence \| Security \| Space We operate across four strategic areas, combining artificial intelligence, systems engineering, data science, and aerospace technology to tackle global challenges — from protecting people and critical infrastructure to exploring space. We offer a unique surveillance\-as\-a\-service solution that delivers real\-time intelligence, enhancing maritime safety and saving lives. Our products and services support strategic and operational decisions in the most demanding environments — whether at sea, on land, in space, or in cyberspace. Become part of a dynamic, multidisciplinary, and mission\-driven team that is transforming maritime surveillance and redefining global safety standards. At TEKEVER, our mission is to provide limitless support through mission\-oriented game\-changers, delivering the right information at the right time to empower critical decision\-making. If you're passionate about technology and eager to shape the future — TEKEVER is the place for you. We’re looking for a skilled **Mid\-Level Backend C\# Developer** to join our team, working on an innovative desktop application project built with a Windows Presentation Foundation (WPF) stack. This role offers a chance to grow into the position, starting with supporting our current platform to gain a strong understanding of the business logic and workflows. **What You’ll Do:** * **Learn and Support:** Start by supporting the existing WPF\-based system to understand its architecture, functionality, and how it serves business needs. * **Develop Features:** Transition into developing backend features for a modernized WPF desktop application, focusing on reliability, scalability, and performance. * **Streamline Workflows:** Build and enhance backend services and APIs that improve operator workflows and increase automation. * **Data Handling:** Manage real\-time data processing and integration, ensuring seamless communication between backend and UI components. * **Collaborate:** Work closely with UI developers using WPF to deliver cohesive and user friendly desktop solutions. * **Optimize Performance:** Identify and resolve performance issues in both backend logic and integration with the WPF stack. **What We’re Looking For:** * **Experience:** 3\+ years of experience in backend development with a focus on C\# and .NET, including experience working on WPF desktop applications. * **Technical Skills:** Strong understanding of building APIs, integrating backend logic with WPF UIs, and handling data in real\-time environments. * **Problem Solving**: Ability to debug complex issues and deliver efficient solutions. * **Collaboration:** Strong communication skills and a team\-oriented mindset. **Location:** Able to work Hybrid in Lisbon's office or Caldas da Rainha **Bonus Points:** * Experience with Windows desktop application development in WPF. * Familiarity with multi\-threading, MVVM architecture, or real\-time data systems. **Why Join Us:** * Opportunity to work on cutting\-edge WPF desktop solutions in a high\-impact field. * Gain deep hands\-on experience with a modernized stack and advanced tools. * Collaborate with a talented and supportive team dedicated to delivering innovative solutions. * Be part of a project that challenges you to grow and advance your technical skills. If you’re passionate about building robust desktop applications and tackling complex backend challenges, we’d love to hear from you!