Backend-Entwickler (m/w/d) – FIS
Core
Building and refactoring backend services for industrial automation and IT solutions in building, energy, and environmental sectors.
Role type
Senior Backend Engineer (.NET/ASP.NET Core)
Builds
Modular, containerized backend services with REST APIs for industrial automation systems.
Domain
Industrial automation, building technology, energy, and environmental engineering.
Required skills
C#, ASP.NET Core, SQL, data modeling, performance optimization, legacy code refactoring, API design.
Preferred skills
REST-API design, OpenAPI, API Gateway, containerization, CI/CD, real-time data processing (WebSockets/SignalR), OPC UA, BACnet, Modbus, SCADA.
Technologies
.NET 10, C#, ASP.NET Core, Blazor Server, SignalR, WebSockets, SQL, Docker, Kubernetes, Azure API Management, nginx, OPC UA, BACnet, Modbus, SCADA.
Responsibilities
Designing and maintaining API-first architecture with versioning and authentication; refactoring monolithic codebases into independent microservices; ensuring data access performance and operational stability; implementing translation layers between legacy and new models.
Seniority
Mid-Senior, hands-on IC
