Backend Developer

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.