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Senior Full Stack Engineer - React​/TS​/Node

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Oliver Bernard
Full Time, Part Time position
Listed on 2026-09-12
Job specializations:
  • Software Development
    Full Stack Developer, React.js
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Senior Full Stack Engineer - React/TS/Node - £80-100K
Location: Greater London

Senior Full Stack Engineer – React/Type Script/AWS – £80–100k

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, Type Script, 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 Lang Chain or Lang Graph)
  • Experience building something from scratch — whether a side project, startup, or open-source app
  • Frontend:
    React, Type Script, Next.js
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 (£80–100k)
  • Hybrid working model - 3 days per week in the London office

Senior Full Stack Engineer role - 3 days/week in London - £80-90k

Position Requirements
10+ Years work experience
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