Staff Software Engineer in London

Nelly Works has partnered with an exceptional, early-stage AI start-up in London developing next-generation intelligent workflows and automation systems. Operating on the thesis that the next wave of major enterprise value will be driven by software companies that seamlessly scale operational services. The team is a small, exceptionally talent-dense group of researchers and engineers. Instead of retrofitting AI onto legacy systems, they are building native infrastructure from scratch, moving at extreme speed, and shipping to production daily. There are no tickets or rigid roadmaps here—you will be handed broad, open-ended problem spaces and trusted to architect, validate, and ship the solutions. Drive Technical Direction: Make the foundational engineering decisions across multiple research surfaces to ensure long-term speed and scale. A proven track record as a Senior or Staff Engineer within a top-tier R&D lab, applied research team, or early-stage technology company. A builder who thrives on rapid execution—moving from a design doc on Monday to production by Friday. Technical Depth: Deep software engineering fundamentals paired with practical experience deploying agentic workflows, LLM infrastructure, or advanced AI systems. Presence: This is a fully collaborative, high-velocity environment requiring 5 days per week on-site in their London office A tiny, highly autonomous team means your fingerprints will be on the core foundation of everything they build. Elite Talent Bar: A world-class environment where every teammate is an exceptional operator who will sharpen your skills. Zero Legacy Debt: Clean slate, AI-native infrastructure built for scale from day one. Want to build in AI space? Apply directly or message Nelly Works for a confidential chat.