Full Stack Engineer - Decision Tech Product Team

We’re looking for a Full Stack Engineer to join our Decision Tech Product Team. This role is critical in allowing us to offer flexible loan options and provide a great product experience to hundreds of thousands of businesses. You’d be helping design, build and maintain a set of orchestrated services that will serve our primary business needs and core product functionality as we scale.

The team own and optimise the systems that generate loan offers for new customers — including pricing, credit limits, and other offer terms — and choose which offers to present to the customer. You’d join a product team of five people consisting of data scientists, strategy analysts and software engineers, all aiming to improve our area of the funnel.

As a full-stack engineer in one of our product engineering teams, you’ll work closely with our tech and product strategy leads to provide critical input related to our technical needs and solutions. While there is some front-end work to be done, the majority of your work will be back-end.

The projects

• Optimise and deploy live decision models: Collaborate with data scientists to reduce the runtime of optimisation models, ensuring timely decisions and low-load times for customers. This involves deep dives into performance bottlenecks and implementing efficient solutions.
• Redesign offer generation architecture: Evolve and consolidate our offer generation services, leveraging your expertise to refactor and simplify the existing architecture. This investment will enhance scalability and maintainability, reflecting iwoca's growth and modern approach to business loans.
• Implement new customer offer display interfaces: Develop and maintain user interfaces that allow customers to interact with and customise their loan offers. This includes building and integrating features and tools that maximise the utility of our products.
• Develop robust analytics infrastructure: Build and enhance data models and pipelines to ensure accurate and timely data collections. This will involve designing and implementing data solutions that empower the strategy and analytics team to conduct split tests and make data-driven decisions.

The requirements

• Essential: Proficiency in Python with a strong background in back-end engineering. Experience designing, building, and managing relational databases. Experience designing, building, and maintaining API endpoints. Confidence working across the full stack, including front-end development in React/TypeScript, with a desire to learn new technologies. Strong communication skills, with the ability to translate business needs into clear, effective technical solutions.
• Bonus: Experience with Django and PostgreSQL. Experience with design software, such as Figma. 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 £65,000 - £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 salary and performance 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 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.

The benefits

• 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.