Full Stack Engineer

Hybrid working in London, UK (At least one day in office per week)

The company

Imagine a world where every small business has the power to thrive. That's the world we're building at iwoca. Small businesses aren't just statistics – they're the heartbeat of our communities, the character of our high streets, and the engine of our economy. Since 2012, we've revolutionised how these businesses access finance, turning what was once a lengthy, frustrating process into something remarkable: funding that's fast, flexible, and actually works for modern businesses.

Our impact speaks for itself: we've provided billions in funding to over 150,000 businesses across Europe, making us one of the continent's leading fintech innovators. But we're just getting started. Our mission? To empower one million businesses with the financial tools they deserve.

We combine cutting-edge technology and data science with genuine human understanding to make finance feel less like a barrier and more like a superpower. Whether it's managing cash flow or seizing unexpected opportunities, we ensure businesses get the funds they need – often within minutes.

The team

The iwocaPay team runs like an independent start-up within iwoca. We build trade credit and Buy-Now-Pay-Later (BNPL) solutions for businesses. Our product helps thousands of buyers manage their cash flow and purchasing power, while supporting hundreds of sellers to offer flexible payment options. 

We’re growing fast, now over 30 people strong, with five engineers, two product managers, one designer, and a full set of operational roles. We hold ourselves to high standards and move quickly, iterating frequently to ship features that matter. We run daily standups and regular offsites to stay aligned and collaborative. We also work closely with other iwoca teams, sharing code and benefiting from shared resources, such as our dedicated DevOps team.

The role

As a full-stack engineer in the iwocaPay team, you’ll build APIs, user interfaces, and ecommerce plugins that help suppliers get paid fast. You’ll shape the end-to-end experience for buyers and suppliers, using data to guide improvements and measure impact. You’ll work closely with product, design, operations, and other iwoca teams to deliver high-quality, user-focused features.

The projects

• Improving checkout conversion: We're testing different UX approaches and payment options to reduce friction at checkout and increase conversion for sellers using iwocaPay. This includes experimenting with offer layouts, messaging, and eligibility visibility.

• Smarter credit decisions: We’re enhancing our decision engine to offer more accurate and instant credit decisions for buyers, based on real-time data. This includes refining our models to support higher-value transactions and broader customer segments.

• Ecommerce integrations: We’re expanding and improving our plugins for major ecommerce platforms, making them easier for suppliers to install and use. The goal is to simplify onboarding while supporting more use cases out of the box.

• Payment flexibility: We're building features that give buyers more control over their repayment schedules, while ensuring suppliers still get paid upfront. Recent examples include variable instalment options and post-purchase payment adjustments.

The requirements

Essential:

• Significant back end engineering experience, ideally using Python.

• Experience designing, building, and maintaining API endpoints.

• Confidence working across the stack, including front-end development in React/TypeScript.

• Strong communication skills, with the ability to translate business needs into clear, effective technical solutions.

Bonus:

• Familiarity with PHP, particularly for contributing to ecommerce plugins

• Experience with Django and PostgreSQL

• Understanding of DevOps practices, including containerisation and CI/CD

• A strong numerical or technical background, with a degree in maths, physics, computer science, engineering, or relevant industry experience

The salary

We expect to pay from £70,000 - £80,000 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. 

The culture

At iwoca, we prioritise a culture of learning, growth, and support, and invest in the professional development of our team members. We value diversity in thought and skill, and encourage you to explore new areas of interest to help us improve our products and services.

The offices

We put a lot of effort into making iwoca a brilliant place to work:

• Offices in London, Leeds, Berlin, and Frankfurt with plenty of drinks and snacks

• Events and clubs, like bingo, comedy nights, yoga classes, football, etc.

The benefits

• Flexible working. 

• 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, 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 emotional and mental health support.

• 3% Pension contributions and share options.

• Generous parental leave and a nursery tax benefit scheme to help you save money.

• Cycle-to-work scheme and electric car 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.