Senior Back End Engineer, iwoca
DE Tech
£80-100k
Plus equity. We’re open-minded, so definitely include your salary goals with your application
Online loans for small businesses
Job no longer available
Online loans for small businesses
201-500 employees
Job no longer available
£80-100k
Plus equity. We’re open-minded, so definitely include your salary goals with your application
201-500 employees
Company mission
To fund one million small businesses.
Role
Who you are
- Proven track record in designing and building backend systems using Python, ideally with Django but open to other web frameworks such as FastAPI, Flask, or Ninja
- Experience working with relational databases, ideally PostgreSQL but open to MySQL or similar, with an understanding of performance and maintainability considerations
- Experience working on systems that support complex workflows, where data correctness and clear system behaviour matter
- A track record of taking work from an initial problem through to delivery, including shaping solutions, making trade-offs, and iterating based on how systems are used
- A drive to continually improve existing systems, not just building new ones, including simplifying and addressing long-standing pain points
Desirable
- Knowing how to scale systems: Familiarity with working on internal tools or platforms used by large operational teams
- Full-stack flexibility: Contributing to front-end codebases, particularly with React or TypeScript
- Modern deployment experience: Working with CI/CD pipelines or deployment workflows
- A data-driven mindset: Using data or metrics to assess whether changes have had the intended effect
What the job involves
- We’re looking for a Senior Back End Engineer to build the systems that power iwoca’s German business
- You’ll join one of the engineering teams focused on our German market, a cross-functional group that builds the proprietary tools (like our CRM) that our German operations staff use every day
- You’ll own high-impact projects from the ground up, using your technical experience to improve how we serve small businesses while also helping to level up the wider engineering team
- You’ll work on the systems that both internal and external teams rely on to serve customers. You’ll take engineering work from an initial problem through to delivery and see the outcome in daily use
- You’ll design and build back-end services that support core operational workflows, including customer communication, underwriting, and collections
- Simplify workflows: You’ll decide when and what to automate, translating operational needs into reliable code that reduces manual effort
- Evolve the architecture: You’ll identify ways to modernise our systems, managing trade-offs to keep them dependable as they scale
- Advocate for quality: You’ll be a sounding board for the team, using code reviews and design sessions to advocate for better engineering practices
- Expand your scope: You’ll join a growing team that supports emerging leaders, offering you opportunities to lead projects end-to-end, developing your commercial judgement
- The DE Tech team is a growing engineering team consisting of three smaller cross-functional teams. The teams build and maintain various systems – including tools for underwriting, notifications, and account management – that power iwoca’s German market
- They support more than 300 colleagues across sales, credit, and collections who rely on these tools every day
- As the German business grows, these teams are moving beyond small improvements and into reworking how work is done
- By reducing manual steps and improving how information flows through the company, they directly influence how quickly other teams can act, how reliably iwoca can support its customers, and where we can most effectively spend human effort
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
Funding (last 2 of 8 rounds)
Aug 2025
$15.9m
SERIES D
Aug 2019
$13.5m
GRANT
Total funding: $113.8m
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.
Share this job
View 29 more jobs at iwoca