Senior Back End Engineer, iwoca
FinTech
£70-100k
Offers equity
Online loans for small businesses
Posted today
Online loans for small businesses
201-500 employees
Posted today
£70-100k
Offers equity
201-500 employees
Company mission
To fund one million small businesses.
Role
Who you are
- Experience building scalable back-end systems for payments or financial ledgers
- Proficiency in Python and experience with relational databases, ideally PostgreSQL
- Experience building highly available systems that process a large number of transactions (10,000+ per day)
- A strong numerical or technical background (for example, a degree in Computer Science, Engineering, Maths, or a related field)
Desirable
- Experience with the Django framework
- Experience with infrastructure-as-code and CI/CD pipelines (DevOps)
- Experience with Rust
What the job involves
- The Finance Technology team builds and maintains the payment infrastructure and financial data systems that power iwoca’s growth. The team partners with the Finance team to build scalable tools and supports other product teams to launch new products with enhancements to the payment infrastructure and financial data systems
- As a group of skilled back-end engineers, they work closely with a dedicated Tech Lead and Product Manager, using Agile methods to ship code frequently and solve complex problems together
- Three of the team work remotely and five are hybrid, working 1-3 days per week in the London office
- Responsibility and Autonomy:
- Lead the delivery of well-defined projects involving many stakeholders and systems
- Go beyond the code to develop a deep expertise in the fintech team’s domain, understand our core financial products and our stakeholder needs to become a trusted technical advisor to the business
- Perform detailed technical scoping and prototyping to support feasibility testing and decision making
- Delivery and Collaboration
- Architect and implement scalable solutions for complex challenges, such as building a new ledger system or integrating real-time payments
- Translate ambiguous product requirements into clear, actionable technical plans that guide the team’s work
- Contribute high-quality, production-ready code and foster a collaborative environment by reviewing work, helping to troubleshoot live issues, and writing useful documentation
- Learning and Growth:
- Embrace and demonstrate a growth mindset by sharing new technologies and best practices within the team and across the company
- Work with the Tech Lead to improve our development and agile practices
Salary benchmarks
Our take
UK SMEs are the backbone of a complex economy that is constantly changing, so the need for fast and responsive access to finance is becoming more and more important to ensure their success and growth. iwoca allows SMEs access to business loans in less than a minute, with its API and business marketplace partnerships.
With offerings like iwoca's, gone are the days where waiting up to eight weeks for a loan decision was viable. Its simplified business loans of £1,000 - £500,000 come with no fees attached, and applying online takes no more than five minutes. The ready availability of iwoca loans gives business owners a level of certainty, so that they can make instant decisions to help their business grow.
iwoca has made a number of partnerships with other players in the business finance space, including an impressive industry-first invoice checkout integration with QuickBooks. Funding raised by the company, which is now operating at net profitability, will enable it to meet a recent surge in demand for corporate loans and offer more to larger SMB businesses. And the company has made several billion in funding available to over 100,000 businesses since launching, positioning itself as a leading European fintech.
Steph
Company Specialist at Welcome to the Jungle
Insights
Company
Employee endorsements
Opportunities to learn
"Great opportunities available to learn from both individuals through shadowing, and teams through presentations and even secondment opportunities -..."
Funding (last 2 of 8 rounds)
Aug 2025
$15.9m
SERIES D
Aug 2019
$13.5m
GRANT
Total funding: $113.9m
Company benefits
- Work where you work best: Twice a year we rent houses in places like Sicily and the French Alps where each team can work together for a week poolside. We champion flexible working in all our teams
- Invest in iwoca: We want people to be invested in iwoca's success so after six months you'll be awarded share options
- Keep yourself healthy: We offer comprehensive health insurance and cash plans. You'll also get gym discounts and we host yoga classes in the office every week
- Start (and end) your day right: Each floor of iwoca HQ has a fully stocked fridge for breakfast and every Friday we unwind with beers and wine
- Life-work balance: We know your life outside of work comes first. We offer enhanced maternity and paternity leave for new parents plus a nursery benefit. We also have unlimited unpaid leave
- Learning and development: Whether you want to learn to code, experiment with motion design, or beat cognitive biases, you'll have time and budget to invest in your professional development
Company values
- Motivated: Going to work shouldn't feel like a slog, so we want everyone in the team to personally care about what they're working on. We stay motivated by celebrating our wins, learning from our mistakes, and always looking for new gaps to step into
- Smart: At iwoca being smart isn't about what you know, it's about how you think. Smart thinking means looking at each problem by asking ‘why’ first, then figuring out ‘how’
- Humble: We know all ideas are flawed, all code has bugs, and everyone makes mistakes - it’s how we learn. For us, being humble means you question yourself first, rather than your team
- Growth Mindset: We think there's always a better way to solve a problem. So we never let ourselves get comfortable with being good enough
Company HQ
Fitzrovia, London, UK
Articles
Leadership
Christoph Rieche
(Co-Founder & CEO)Previously spent 7 years at Goldman Sachs as a Vice President before co-founding iwoca in 2011.
Joost Versteeg
(CMO)Joost initially joined iwoca in 2017 as an Intern. Since then, they have held a number of roles, from Growth Analyst to Head of Commercial Strategy and became CMO in 2024.
People progressing
Serita joined as a Customer Onboarder, before moving into the Broker Team. Most recently they have been promoted to Partnership Manager.
Leo joined in 2018 as a Client Onboarder. Since then, they have worked in a number of roles and now serve as the Product Manager.
Jenny originally joined the Client Onboarding team and now leads the Customer Success department for the German business.
Diversity, Equity & Inclusion at iwoca
- We work hard to make iwoca a place where everyone feels welcome, where you can confidently be yourself. We understand that diversity isn't an optional add-on, it's the core ingredient of what makes us great.
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