Senior Backend .NET Engineer

United ITS is expanding its aviation software engineering team.

We build high-reliability software systems supporting aviation operations, airspace control, and training environments.

We are seeking a Senior Backend .NET Core Engineer to own and architect the integration layer powering real-time operational systems.

This role is responsible for backend architecture, system integration, API gateway design, and ensuring reliable communication between control platforms and external engines.

Key Responsibilitie

• sDesign and implement scalable ASP.NET Core API
• sArchitect and implement Microservices-based backend system
• sDesign and manage API Gateway layers for secure and scalable service exposur
• eDevelop real-time communication layers (REST, WebSocket, event-driven patterns
• )Own integration services and command/event processing pipeline
• sDesign data models and optimize performance using PostgreSQL and PostGI
• SEnsure thread safety, concurrency control, and high-availability architectur
• eCollaborate closely with frontend, desktop, DevOps, and infrastructure team

s
Required Qualificatio

• ns4+ years of experience with .NET / ASP.NET Co
• reStrong experience with Microservices architecture and distributed syste
• msHands-on experience with API Gateway design and implementati
• onStrong expertise in PostgreSQL, including performance tuni
• ngExperience working with PostGIS for spatial or geospatial data handling is highly preferr
• edDeep understanding of async programming, multithreading, and concurrency contr
• olExperience designing integration layers or middleware syste
• msSolid knowledge of API security, authentication (JWT/OAuth2), and system architecture patter
• nsExperience working with mission-critical or real-time systems is highly preferr

ed