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Full Stack Tech Lead - TypeScript, React, AI tools - start-upc£85-100k + discretionary BonusHybrid - Greater London preferredVery high growth (>200% CAGR) online retailer, a start-up in its infancy, is seeking an experienced Tech Lead, crucially a technically hands-on individual contributor to own the technology stack and guide the small engineering team. You’ll be directly responsible for shipping critical code, while also mentoring other engineers, driving technical strategy, and ensuring the platform scales with rapid international growth. They deploy multiple times per day, and you’ll need experience in a similar environ. Tens of thousands of customers rely on the code working instantly and reliably.Further, you will be a key partner to the founders, translating business goals (eg US expansion) into a clear technical roadmap and high-quality, high-velocity execution. Requirements:Strong experience across the stack: TypeScript, React Native, React, Node, Postgres, GCP/Firebase.A genuine full-stack mindset: happy working in the mobile app, web apps, backend, and writing SQL when needed.Confident writing efficient, production-ready code - fast, reliable, observable, and easy to maintain.Comfortable with a high-pace release culture (multiple deploys per day).Product-focused, enabling you to empathise with users and steer feature development.6+ years of experience in software engineering, ideally in a fast-moving startup or product-led environment.Strong problem-solving skills, ownership mentality, and ability to work in GMT-friendly time zones.Deep practitioner of AI-powered SWE tools (Cursor, Windsurf, v0, etc.) and excited to push productivity to the limit.Crucially, you will be able to translate the product goals and strategy into technical details by working well w