Full Stack Engineer .Net/React

About the role

Location: Remote, UK-based - Type: Full-time - Working style: Async-first Lüp is the data-driven event technology platform behind some of the world's most complex events - from SXSW Sydney to The Podcast Show London. We turn fragmented event data into a single source of truth that powers registration, smart lead capture and real-time analytics, all backed by full-service onsite delivery. Fifteen years in and recognised across the industry (including Winner at the 2026 Eventex Awards), we're now scaling fast in the UK - and that's where this role sits. We're looking for a senior, full-cycle engineer who can own problems end to end with very little hand-holding: the kind who builds it, ships it, runs it, and improves it. This is a high-autonomy role with room to grow by design. You'll work asynchronously alongside a globally distributed team, so we need someone who can set their own direction, unblock themselves, and deliver high-quality software without waiting to be told what to do next. We're also genuinely AI-first: AI-assisted development is core to how we build, every engineer is equipped for it, and we expect you to be just as bought in (more on that below). About You You're an experienced software engineer who enjoys solving complex technical challenges and shipping high-quality solutions. You operate well on your own, take real ownership, and bring others along through strong technical judgment and clear communication. You're equally comfortable in the weeds of the code and zoomed out on the architecture. 8-10+ years building software with .NET technologies. Strong proficiency in C#, ASP.NET and the wider Microsoft stack. Solid full-stack experience across back-end and modern JavaScript/React front-ends. Strong grasp of software architecture, design patterns and engineering best practices. Excellent problem-solving and debugging skills - you can diagnose and fix things others can't. A track record of delivering autonomously, with minimal oversight, in an async or distributed setup. Experience guiding delivery and mentoring engineers (formal team leadership is a plus, not a must). Strong communication and stakeholder management - clear in writing, since most of our coordination is written. Hands-on experience with AI-assisted development tools. Comfortable in a fast-paced, collaborative scale-up environment. Bachelor's degree in Computer Science, Engineering or a related field - or equivalent practical experience.

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