Senior Frontend Developer

We’re looking for a Senior Frontend Engineer for our client in Stockholm!The roleYou'll be working with an exciting deep-tech start-up building a cutting-edge collaboration platform for the manufacturing industry, working at the frontier of engineering, cloud-native platforms, and intelligent design automation.The work consists of high-performance, real-time product interfaces used by expert users to explore complex designs, collaborate live, and make critical decisions. This is a high-agency role with real architectural ownership and direct impact on how the product evolves.What you’ll be doingBuilding core product interfaces using React, Next.js, and TypeScriptDesigning and maintaining reusable, accessible UI systemsImplementing real-time collaboration features over WebSocketsWorking closely with product and design to ship intuitive, polished experiencesOptimising rendering performance, asset loading, and perceived latency in complex UIsRequirements5+ years of experience building modern frontend applications in React.Deep understanding of component architecture, performance, and accessibilityProduct mindset: you care about how things are used, not just how they’re builtProven experience working in a fast-paced, high-ownership, environment.Fluent English SpeakerBonus - Any experience with WebGL, WebGPU, or 3D-adjacent frontend workWhat's on offerAbove market base salaryITP Pension model30 days vacationStock Option package