Full Stack Engineer - Offers

Methodfi; City of London; Hybrid; GBP 65,000 - 80,000; Full time

Job summary

A leading fintech company in London is seeking a Full Stack Engineer to join its Offers Team. You will play a critical role in enhancing offer generation systems and will work primarily on back-end tasks while also having opportunities in front-end development. The ideal candidate has strong proficiency in Python, experience with relational databases, and a passion for learning new technologies. The role offers a salary between £65,000 and £80,000 and a culture focused on learning and personal growth.

Benefits

Flexible working

Medical insurance

25 days holiday

Learning development budget

Company retreats

Qualifications

• Experience designing, building, and managing relational databases.
• Experience designing, building, and maintaining API endpoints.
• Confidence working across the full stack with a desire to learn new technologies.

Responsibilities

• Optimise and deploy live decision models with data scientists.
• Redesign offer generation architecture for scalability.
• Implement new customer offer display interfaces.
• Develop robust analytics infrastructure to enhance data models.

Skills

Proficiency in Python

Experience in back-end engineering

Strong communication skills

Front-end development in React/TypeScript

Education

Degree in maths, physics, computer science, engineering or relevant industry experience

Tools

Django

PostgreSQL

Figma

Job description

Full Stack Engineer - Offers Team

Hybrid in London, UK

We’re looking for a Full Stack Engineer to join our Offers Team. We’d like you to be a part of the technical evolution of iwoca’s offer-generation systems in a role that is critical in allowing us to bring a great product offering and experience to hundreds of thousands of businesses. You’d be helping design and build a set of orchestrated services that will help us as we scale.

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 a business is managing cash flow or seizing unexpected opportunities, we ensure they get the funds they need – often within minutes.

The team

The Offers 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 build team of six people consisting of data scientists, strategy analysts and software engineers, all aiming to improve our area of the funnel. We primarily work a hybrid in London, with regular knowledge sharing sessions amongst the team to promote curiosity and learning.

The role

As a full-stack engineer in the Offers team, you’ll work closely with our tech and product strategy lead 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.

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 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.