Back-End Engineer: Partner Flow & API — Remote UK

Iwoca; Greater London; Hybrid; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Flexible working hours

Medical insurance

Pension contributions

Employee equity

Gym membership discount

Job summary

iwoca is hiring a Back End Engineer for the Partner Flow team in London. Hybrid in London and remote within the UK. You will work on scalable backend systems, APIs, and partner integrations that power iwoca loans embedded into partner journeys.

You’ll design robust systems, own features end-to-end, and collaborate with a small cross-functional team to experiment and improve partner conversion. The role emphasizes practical, data-driven decisions and AI-assisted development.

Qualifications

• Experience designing and building scalable back-end systems, ideally in Python.
• Experience with relational databases, preferably PostgreSQL.
• Experience building and maintaining APIs that are easy to use, reliable, and well-documented.
• Experience managing projects end to end, from understanding business problems to designing and delivering technical solutions.
• Pragmatism in balancing delivery speed with long-term system health.
• Clear, concise written and verbal communication, focusing on outcomes and impact.
• A genuine team player: you support your teammates, share knowledge, and care about the team's success as much as your own.
• AI fluency. Experience using AI coding tools to accelerate real delivery, and a genuine interest in getting better at it - with a pragmatic sense of where it adds value and where it doesn't.

Responsibilities

• Own features and projects from scoping and design through to production.
• Collaborate with other engineers to meet the team’s goals while defining your own solutions.
• Design and maintain robust, flexible systems to ensure scalability and fast-paced development.
• Deliver new functionality critical to onboarding important new partners.
• Run experiments (RCTs) and optimise the funnel to improve partner-referred customer conversion.
• Leave code, docs, and processes in better shape than you found them.
• Work on systems that genuinely help businesses get the funding they need.
• Collaborate with partners and internal stakeholders to design effective solutions.

Skills

Python

API design

Team collaboration

End-to-end projects

AI fluency

Tools

PostgreSQL

REST APIs

CI/CD pipelines

Containerisation

Job description

iwoca is hiring a Back End Engineer for the Partner Flow team in London. Hybrid in London and remote within the UK. You will work on scalable backend systems, APIs, and partner integrations that power iwoca loans embedded into partner journeys.

You’ll design robust systems, own features end-to-end, and collaborate with a small cross-functional team to experiment and improve partner conversion. The role emphasizes practical, data-driven decisions and AI-assisted development.