Senior Software Engineer

Techmunity; Greater London; Hybrid; GBP 100,000 - 170,000; Full time

Benefits offered by this job

Health insurance

Pension

Quarterly salary reviews

Uncapped leave

Mental health support

Weekly team lunches

Job summary

A fast-growing fintech company in London is seeking a Senior Product Engineer to join their innovative team. You will work closely with tech leaders and drive product development, focusing on backend services, APIs, and integrations. The role offers substantial equity opportunities and a competitive salary of £100,000–£170,000, along with benefits such as health insurance, pension, and flexible working arrangements. This is an excellent position for engineers looking to make a significant impact in a thriving environment.

Qualifications

• Experience with backend services and APIs.
• Proficient in building UI components and third-party integrations.
• Strong problem-solving mindset and ownership of projects.

Responsibilities

• Build product solutions for real customer problems.
• Own the development process end to end.
• Collaborate with cross-functional teams.

Skills

Python

Flask

FastAPI

GCP

AWS

Terraform

React

TypeScript

Next.js

Job description

Overview

Are you a product-minded engineer who wants to work shoulder to shoulder with tech leaders from Revolut, Meta, Spotify and top performers from London's most successful startups?

This is a YC-backed Series A company that's been running LLMs in regulated financial environments since before ChatGPT existed.

Hundreds of fintechs, banks and insurers use the platform every day. They're targeting IPO in the coming years - and joining now as a Senior Product Engineer, you're early enough for the equity to still matter.

You'll be reporting into a Head of Engineering who was engineer #4 at one of London's best-known fintechs - he helped take it from 0 to $50M ARR, 4M+ users, a $500M Series C valuation, and 160+ employees globally.

Most of the engineers are either ex-founders or were early senior engineers at high-growth startups. They're not easy to get an offer from - and that's exactly the point.

This is a hands-on IC role building product that solves real customer problems - backend services and APIs, UI components, third-party and AI model integrations. You own what you build end to end.

Stack

Stack: Python/Flask/FastAPI, GCP/AWS/Terraform, React/TypeScript/Next.js

Compensation & Benefits

£100,000–£170,000 depending on level, plus equity. Quarterly salary reviews, visa sponsorship, health insurance, pension, uncapped leave, mental health support via Spill, weekly team lunches.

Location & Schedule

Two days a week in Farringdon - others come in more, but it's not mandated.

Application

You don't need an up-to-date CV to start a conversation. Email [e-mail] or apply via the link.