Senior C# Architect — High-Performance Engine & Interop

Lumion; Sassenheim; Hybrid; EUR 110,000 - 170,000; Full time

Job summary

Lumion is seeking a Senior C# Engineer to shape the scripting environment and bridge the native C++ core with a modern C# API. You will drive architecture choices, performance priorities, and the developer experience for our C# tooling.

Join a hybrid, international team delivering cutting-edge rendering and AI-driven features. You will collaborate across the C# team to evolve the scripting ecosystem from concept to production-ready deployment.

Qualifications

• Proven track record designing C# environments for high-performance apps.
• Deep experience with .NET 8/9+ and memory/perf optimization.
• Collaborative in hybrid team settings and able to shape vision from concept to production.

Responsibilities

• Evolve the Lumion scripting layer and make it a first-class citizen within the engine.
• Design and implement the interop layer and modern C# API bridging native C++ core.
• Drive memory management, serialization, and long-term stability of the C# environment.

Skills

C# architecture design

C# & C++ interop

C# tooling & ergonomics

Tools

Roslyn tooling

Job description

Lumion is seeking a Senior C# Engineer to shape the scripting environment and bridge the native C++ core with a modern C# API. You will drive architecture choices, performance priorities, and the developer experience for our C# tooling.

Join a hybrid, international team delivering cutting-edge rendering and AI-driven features. You will collaborate across the C# team to evolve the scripting ecosystem from concept to production-ready deployment.