Backend Developer
Description DRS RADA is a global pioneer of RADAR systems for active military protection, counter-drone applications, critical infrastructure protection, and border surveillance. We are seeking a Senior Backend Developer to lead the architecture and implementation of a GIS-oriented, distributed backend system. The system is currently in a Proof-of-Concept phase, with a clear trajectory toward a production-grade, mission-capable solution. This role is hands-on and design-heavy, focusing on building clean, extensible foundations for a microservices-based system that integrates real-time sensor data, geospatial processing, and a COTS GIS platform. You will define core architectural decisions that enable rapid iteration today while avoiding costly redesigns later. Key Responsibilities: Architecture & Technical Leadership: Design the backend architecture using modern .NET (C#), ensuring scalability from POC to production. Define microservices boundaries, service contracts, and data ownership models. Lead the design of the inter-service communication layer, evaluating and selecting messaging/communication patterns based on latency, reliability, and deployment constraints. Backend Development: Implement core services for ingesting and processing sensor-driven data streams (e.g., radar inputs). Design APIs and internal messaging patterns supporting low-latency and near-real-time workflows. Build services that integrate spatial and non-spatial data using PostgreSQL and PostGIS. Ensure performance is sufficient for real-time visualization without over-engineering early-stage components. GIS & System Integration: Integrate backend services with GIS map servers (e.g., Carmenta Map Server, LuciadFusion, Cesium ion). Collaborate with frontend developers using Angular, OpenLayers, and CesiumJS. Infrastructure & Deployment: Define containerization and deployment workflows using Docker / Podman (Compose-based, no Kubernetes). Design for on-premise constraints, including limited scalability and intermittent network reliability. Introduce lightweight observability (logging, metrics), with a path to production-grade monitoring. Reliability & Security: Design secure service communication and basic identity/access mechanisms. Requirements Required Qualifications: 7+ years of backend development experience with strong hands-on coding. Deep expertise in C# and .NET. Proven experience designing distributed or microservices-based systems. Strong knowledge of designing architectural solutions in a microservices environment. Experience with real-time or streaming data systems. Strong understanding of networking fundamentals and performance considerations. Experience with PostgreSQL (and preferably PostGIS). Hands-on experience with containerization tools such as Docker or Podman. Preferred Qualifications: Experience with inter-service communication frameworks (e.g., RTI Connext DDS, RabbitMQ, NATS). Full-stack development experience (e.g., .NET backend with Angular or React-based frontend). Familiarity with GIS systems or geospatial data processing. Experience with non-relational databases such as MongoDB. Familiarity with in-memory and search technologies such as Redis and Elasticsearch. Experience working in on-premises or edge environments. Familiarity with authentication and authorization systems.