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# Principal Software Engineer

- **Company:** TeamFeePay
- **Location:** Belfast, UK
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Databases, Mobile Application Software, PostgreSQL, Platform as a Service (PAAS), Software Architecture, Ruby on Rails, Ruby, Software Engineering, ReactJS, Backend, Heroku, Stripe, React Native
- **Published:** July 11, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=ec0aac08c06524f8

## About the Role

* you have experience with Ruby, software architecture, migrations, payments and leading technological change
 * you have strong experience of software development, including a background as a technical leader
 * you've led major technical migrations before, ideally including moving off a PaaS like Heroku
 * you can make the big technical bets, and are comfortable being accountable for them
 * you have experience shaping product strategy directly, without needing a Head of Product to define it for you
 * you have a product mindset: you're comfortable critiquing designs and understanding user journeys to help land on the best solution, not just implementing what's handed to you
 * you want to shape TFP's technical direction as we scale across the UK and into Europe

This role does require hands-on Ruby on Rails experience, given its focus on our core backend architecture and payments systems.

## Description

We're organised into three squads: Pitchside Experience, Clubhouse Experience and Platform. This role sits in Platform: the squad that builds the shared services, backend infrastructure and payments capability the rest of TFP is built on, including our move off Heroku.

Our engineers come from a variety of different backgrounds. As long as you enjoy learning new things, we'd love to talk to you: we do not ask for formal qualifications or degree requirements for any of our engineering roles.

Your day-to-day

 * Set architectural standards and technical strategy for TFP's backend and payments systems: decisions that need to hold up for years.
 * Lead our move off Heroku: make the platform, build-vs-buy and migration calls that shift TFP's technical trajectory, and be personally accountable for their outcomes.
 * Be the person called in on our hardest, highest-stakes backend and payments problems.
 * Shape product strategy directly for Platform, without a dedicated Head of Product to partner with: own the trade-offs between technical and business priorities yourself.
 * Level up the wider engineering org: build consensus among senior engineers on hard technical questions and grow other senior and lead engineers., * Ruby on Rails to write our API layer (there's a highly recommended Rails tutorial here)
 * Postgres for our database layer
 * Stripe to power payments: membership fees, club shop and fundraising all run through it
 * Currently our infrastructure is on Heroku, but we'll be moving off this soon: join us and help shape where
 * React Native for our mobile applications
 * We're moving to React for our web front end, but we're currently using Rails with Turbo, Hotwire and Stimulus


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