Backend engineer in payments and cards

Bits helps people in the UK build their credit with a subscription and a credit card. It is regulated by the FCA, has tens of thousands of paying members, and is run by a team of fewer than 20 people. Every engineer works with Claude Code every day.

• You own the code that moves the money: subscriptions and billing on Stripe (two accounts), the card with our card processor, the store and gift cards, pushes to members, the reporting data behind them, and our USA site.
• You take over these systems and make them better.
• Take over the subscription, billing and store services end to end, with a written map of what runs where, what alarms exist, and what fails silently today.
• Ship the top change the CEO picks.
• Take one job a person does by hand today, in finance, support or collections, and automate it.

• A small, excellent team, paid well on standard terms. No custom deals and no managers for their own sake.
• Smart people get a mandate, not instructions.
• You get the problem and you own the answer.
• An estimate before anything starts, and the work fits the time agreed.
• You test it and read every word before it ships.
• "It should work" is not done.
• Ship small, measure, then decide. Something customers can see every week.
• One source of truth per topic, written down.
• Manual work is never a reason not to do something. We automate it.
• Fewer cancellations, more revenue and less bad debt come first. Anything that moves none of them waits.