Lead Software Engineer

2 weeks ago

London Area, United Kingdom Oliver Bernard Full time

Lead Software Engineer – React/TypeScript/AWS – £90-100k We are partnering with a well-funded startup that is building an innovative platform empowering private investors to manage their portfolios not only for financial performance but also for sustainability and ESG impact. As an AI-native platform on an exciting growth journey, they are seeking a lead engineer to help shape their architecture as they scale. The Role You’ll take ownership across the full stack — from designing APIs and data models to crafting seamless, high-performing user interfaces. Working closely with product and design teams, you’ll help bring to life tools that make investing smarter, more transparent, and more sustainable. What you’ll bring 6+ years of experience building production web applications and at least 2 years in a tech lead or staff role. Solid experience with React, TypeScript, and Node.js Familiarity with Next.js and GraphQL Previous startup experience A passion for clean code and intuitive product design Interest in fintech, investing, or ESG innovation Nice to Haves Comfortable working with tools like Postgres, Prisma, GraphQL, or Next.js Hands-on experience with AI or agent frameworks (such as LangChain or LangGraph) Experience building something from scratch — whether a side project, startup, or open-source app Tech Stack Frontend: React, TypeScript, Next.js Backend: Node.js, GraphQL Database & Cloud: Postgres, AWS Why Join? Opportunity to contribute to a mission-driven product at the intersection of finance and sustainability Work within a collaborative, high-performing team where individual input is valued Play a key role in an early-stage company where contributions directly influence success Competitive salary (£90-100k) Fully Remote Role Lead Software Engineer- Fully Remote- £90-100k

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