As the most senior individual contributor, you will architect and build the foundational API infrastructure for the UK's first real-time credit bureau. Reporting directly to the CTO, you will ship high-performance Go microservices on AWS, setting the technical standards for a team modernizing credit data for regulated lenders across the country.
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Senior Product Engineer at infact
The UK's credit data market hasn't been rebuilt in decades—until now. Join a high-growth fintech scale-up as the lead individual contributor building the nation's first real-time credit bureau. Reporting directly to the CTO, you'll architect high-performance Go microservices on AWS and set the technical bar for a team backed by £4m from AlbionVC. If you have 5+ years of Go experience and want to own the core infrastructure of a company reshaping financial services, this seed-stage opportunity offers significant equity and total technical ownership in a hybrid London-based role.
About this role
Role overview
About the company
Infact
Software
Infact operates as the UK's first real-time credit bureau, providing lenders with instant, accurate, and comprehensive credit information through a single API.
Their API-driven products are designed for the digital age, enabling lenders to search, report, and manage credit information in real time. Infact delivers advanced solutions for credit risk, fraud detection, affordability assessment, and reporting, focusing on up-to-date data, responsible lending, financial inclusion, and regulatory compliance.
Their platform serves regulated lenders in digital financial services, driving innovation by improving outcomes for consumers and credit providers while promoting fairness and transparency in credit reporting.
What you'll do
What you will do
- Design and lead the architecture of high-performance Go microservices on AWS using Fargate, Lambda, Aurora Postgres, and DynamoDB.
- Mentor mid-level engineers through high-quality code reviews, pair programming, and coaching to elevate the team's overall engineering craft.
- Drive the evolution of the B2B API surface and data layer, balancing simple designs with the scalability required for a regulated financial environment.
Who you are
Who this is a fit for
- Has 5+ years of commercial experience with a deep mastery of Go and a track record of operating B2B API services in production.
- Demonstrates expertise scaling AWS cloud-native applications and modern CI/CD practices within fintech or other highly regulated industries.
- Combines sound architectural judgment with the deliberate use of AI tools like Claude to accelerate delivery without compromising on accountability or quality.
Why this role
Why this role is remarkable
- Work at the ground floor of a seed-stage scale-up that raised £4m from AlbionVC to solve a decades-old problem in financial infrastructure.
- Take genuine ownership of the technical direction with zero layers between you and the CTO, making critical architectural decisions without committee gatekeeping.
- Impact millions of consumers by enabling faster, more accurate lending decisions through sub-second latency API services and modern data signals.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
How does this work?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If it’s a match and the company wants to meet you, they’ll make the intro. In the meantime, if you’d like, Jack will send you excellent alternatives.