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Senior Full Stack Engineer - React/TS/Node - £80-115K

Oliver Bernard· London Area, United Kingdom· £80,000–£115,000/yr
Posted 5 Aug 2026 · Added 5 Aug 2026, 14:56
Oliver Bernard5.0 (3)Recruitment agencyfounded 2010
AI summary

You'll work with React, TypeScript, Node.js, Next.js, GraphQL, Postgres, and AWS on an AI-native platform that empowers private investors to manage their portfolios.

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Senior Full Stack Engineer – React/TypeScript/AWS – £80-115k

We are partnering with a well-funded startup that is building an innovative platform empowering private investors to manage their portfolios.

As an AI-native platform on an exciting growth journey, they are seeking Full Stack Engineers 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

5+ years of experience building production web applications

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's

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 (£80–115k)

Hybrid working model - 3 days per week in the London office

Senior Full Stack Engineer role - 3 days/week in London - £80-115k