Skills

TypeScript GraphQL Architecture react node.js AWS Next.js Langchain PostGres

Job Specifications

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

About the Company

OB are an industry leading technology recruitment consultancy operating across the UK and Europe. Established in 2010 by Billy Jenkins and James Mace, we specialise across the entire tech industry - placing contract and permanent talent in technical roles, ranging from entry level to C-level positions. With more than a decade’s experience, we’re the number one agency for some of the most exciting technology brands in the UK including ASOS, SKY, BBC and SkyScanner. Our extensive talent pool is made up of the best technology ... Know more