iwoca.co.uk - Staff Back End Engineer - Finance Technology
Requirements
• Proven experience building and running microservices and distributed systems in production. Comfortable reasoning about durable cross-service communication, transactional correctness, and failure modes at scale. • Extensive experience with relational databases, ideally PostgreSQL, but open to MySQL or similar (e.g., MS SQL, Oracle); emphasis is on data integrity. • Experienced managing the delivery of complex projects that are implemented by several engineers and leading feature development from 0-1 in a startup, scale-up, or SME environment. • You use AI (like Cursor, Claude Code or similar) in your daily flow - whether for work or for fun. You use it to blast through boilerplate and research, so you can focus on the hard parts: complex architecture, rigour, and high-stakes decision-making. • Proven track record of building and managing complex API integrations (e.g., Payments like Stripe/Braintree, or high-scale integrations in industries like Telecoms, Travel, Ad-Tech or similar). • A strong technical or mathematical foundation, evidenced by a degree in a quantitative field (Computer Science, Engineering, Physics, Maths or similar) or equivalent professional experience. • Track record of mentoring engineers of varying levels as a peer - pairing on hard problems, raising the bar in code review, and unblocking teammates day-to-day • Extensive experience with Python web frameworks (Django / FastAPI / Flask / Starlette / Ninja). • A background in high-logic or high-scale fields like Fintech, Gaming, Healthcare Tech, Logistics, Security/Cryptography or similar. • Working knowledge of modern data tooling - ideally Snowflake and dbt - used to build analytical or reporting pipelines.
Benefits
• We expect to pay from £100,000 to £124,999 for this role. But, we’re open-minded, so definitely include your salary goals with your application. We routinely benchmark salaries against market rates, and run quarterly performance and salary reviews. • At iwoca, the best idea wins. We model our culture on independent thinking, challenging untested logic, and evidence-based decisions. We prioritise learning and growth, and give people the autonomy to develop in the direction that makes them most effective. • We're a tech company and believe in the power of AI to help us work faster and better. We provide the infrastructure where every iwocan always has access to the best models and where those models have access to all of our data. We will help our people to learn how to use and grow with the new tools available to them. • We put a lot of effort into making iwoca a great place to work: • Offices in London, Leeds, Berlin, and Frankfurt with plenty of drinks and snacks. • Events and community-led groups, including running groups, padel, and monthly ping-pong and pool competitions. • Flexible working hours. • Medical insurance from Vitality, including discounted gym membership. • A private GP service (separate from Vitality) for you, your partner, and your dependents. • 25 days’ holiday per year, an extra day off for your birthday, the option to buy or sell an additional five days of annual leave, and unlimited unpaid leave. • A one-month, fully paid sabbatical after four years. • Instant access to external counselling and therapy sessions for team members that need emotional or mental health support. • 3% Pension contributions on total earnings. • An employee equity incentive scheme. • Generous parental leave and a nursery tax benefit scheme to help you save money. • Electric car scheme and cycle to work scheme. • Two company retreats a year: we’ve been to France, Italy, Spain, and further afield. • And to make sure we all keep learning, we offer: • A learning and development budget for everyone. • Company-wide talks with internal and external speakers. • Access to learning platforms like Treehouse. • iwoca benefits & policies https://coda.io/@iwocauk/iwoca-benefits-policies-uk • Interview welcome pack https://coda.io/@iwocauk/interview-welcome-pack-tap.
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