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Founding Engineer (Go) - Up to £120k

Founding Engineer (Go) - Up to £120k

Hybrid

London, United kingdom

£ 120,000 /year

Mid level

Full Time

22-01-2026

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Skills

Python Go TypeScript PostgreSQL Architecture react Terraform

Job Specifications

Founding Full-Stack Engineer to join a pre-SEED FinTech B2C product
London (4 days in office in Shoreditch, London)
Up to £120k + meaningful equity
No VISA Sponsorship

The Company

An early-stage, consumer fintech startup building a new kind of personal finance platform. Backed at pre-seed with a multi-year runway.

The team is intentionally small (currently 3 full-time), highly technical, and product-led. We’re looking for a Senior Full Stack Product Engineer to help design and build the core of the platform as they move from internal alpha to public beta and beyond

You'll be building a personal finance product focused on context, clarity, and long-term financial habits.

The platform aggregates people's banking, investments, and pensions into a single view, surfacing financial “vitals” without judgement or prescriptive advice. Under the hood, the product is powered by a proprietary data schema to turn messy financial data into meaningful, comparable insights.

This is a senior, hands-on role with ownership across architecture and execution. You’ll be instrumental in building and scaling the core systems that underpin the product. You’ll work on a wide variety of projects including:

Bank connectivity and transaction ingestion
Live transaction categorisation
Data modelling

Tech Stack: Go (backend leaning), Typescript, React, PostgreSQL, Terraform, Python, LLMs where appropriate. Help shape the stack!

What We’re Looking For

Senior-level Product Engineer (ideally 6+ years experience), building with Go or other backend-focused languages
A full-stack background (Typescript, React), with solid architectural fundamentals
Experience handling large or complex datasets at scale, and thoughtful about data sensitivity, privacy, and personal information
An interest in product and how people actually use what you build
A pragmatic, ownership-driven mindset

Why Join

Shape the core architecture from the ground up
Build something genuinely different in personal finance
Meaningful equity at an early-stage startup
Direct influence on product, technical direction, and company trajectory

If you’re a Senior Product Engineer who enjoys ownership, cares about data integrity, and wants to build a product people trust with their financial lives, we’d love to hear from you.

About the Company

We're a top-rated recruitment company for product development teams with over 200 5* Google reviews. With deep expertise across product, engineering, design and data, we offer agency, embedded, and talent strategy solutions. Based in London, UK and covering EMEA and North America. Know more