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Rnrs.Solutions

Full Stack Developer

Warsaw, Poland · Remote · FullTime · External

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About the role

RustC++TypeScriptReactREST APIsgRPCDockerWebSocketsCI/CDLinuxGitNetworkingMachine LearningRobotics
Our client is a European deep-tech startup developing next-generation radar systems for detecting and tracking small, low-flying drones. We are looking for a Fullstack Developer with 3–5 years of experience, strong Rust and/or C++ skills, and practical frontend experience. You will build software for radar control, monitoring and real-time visualization, working closely with embedded, signal-processing and AI/ML engineers. RESPONSIBILITIES - Develop reliable, high-performance backend services in Rust and/or C++. - Build interfaces in React and TypeScript for system configuration, monitoring and visualization of detections and tracked objects. - Connect backend services and frontend applications through WebSocket, REST APIs or gRPC. - Integrate continuous sensor data streams, telemetry and external systems using TCP/IP, UDP and binary protocols. - Optimize latency, throughput, memory usage and frontend responsiveness. - Contribute to modular architecture, automated testing, documentation and Docker-based workflows. REQUIREMENTS - 3–5 years of professional software development experience. - Strong practical knowledge of Rust and/or modern C++. - Experience with React and TypeScript or comparable frontend technologies. - Experience with API design, network programming and frontend–backend integration. - Understanding of asynchronous programming, concurrency and multithreading. - Experience developing for Linux and working with Git and Docker. - Strong debugging skills and the ability to work independently in an evolving R&D environment. NICE TO HAVE - Experience with radar, robotics, sensor systems or hardware–software integration. - Familiarity with Tokio, Axum, Boost.Asio, gRPC, Protocol Buffers or ZeroMQ. - Experience with geospatial interfaces, WebGL/Canvas or Qt/QML. - Knowledge of profiling, CI/CD, CMake or time-series data storage. WHAT WE OFFER Direct ownership of technical decisions and a visible impact on the product. Work with a multidisciplinary R&D team on real-time sensor applications where software performance, reliability and usability matter.