Sr.NETSoftwareDevelopmentEngineer

Duro is building the GitHub for Hardware teams. As now a part of the Altium product portfolio, we’re revolutionizing Product Lifecycle Management (PLM) for companies in space tech, robotics, IoT, and commercial manufacturing. Our platform empowers hardware teams to move with agility, make timely decisions, and build disruptive products. Our culture is built on: Trust, Autonomy, Experimentation, and Empathy. We deploy daily. We run 3-week cycles (2 weeks building + 1 week polish). We’re Linear stans, leveraging their AI agents to automate bug discovery and fixes. We measure everything through PostHog—feature flags, session replays, and product analytics all in one. Hardware engineers live inside their CAD tools. Solidworks and Siemens NX are where designs are born, iterated, and finalized—and our job is to meet them there. As a .NET / C# Engineer on the Plugin Integrations team, you’ll build and maintain the plugins that bring Duro’s PLM platform directly into these tools, giving hardware teams seamless access to parts libraries, BOMs, change orders, and lifecycle management without ever leaving their design environment. These plugins are built in .NET/C# and communicate with Duro’s core platform through our GraphQL API. You’ll own features end-to-end within the plugins—from understanding how a mechanical engineer uses Solidworks daily, to implementing the integration, to shipping it. You’ll work under our Plugin Integrations team lead and alongside other integration engineers, contributing to a codebase that directly impacts how hardware teams experience Duro. Your primary environment is Windows—that’s where the CAD tools run. But Duro’s core stack is Node.js and TypeScript, and you’ll occasionally work across that boundary: running the API locally on a Mac, working within WSL, or contributing to shared tooling. We’re looking for someone rooted in .NET who’s comfortable crossing into our broader ecosystem when the work calls for it. A Day in the Life * Build and del