About the job
Join Us in Empowering the UK’s Small Businesses!
Small enterprises are the cornerstone of our economy, and at Funding Circle, we are dedicated to ensuring their success. Our innovative platform harnesses advanced data analytics to provide rapid funding solutions—transforming the traditional process of weeks into mere minutes.
Funding Circle embodies the dynamic spirit of a fintech start-up combined with the stability of a publicly traded company. This unique environment empowers our team members, affectionately known as Circlers, to take initiative and create meaningful change.
We pride ourselves on being a high-performing team that uplifts one another. We challenge, support, and collaborate, understanding that together we can achieve greater results.
Our impact is significant: In the past year, the businesses utilizing our platform generated £7.2bn for the UK economy Be part of a mission that truly matters!
[Explore our Impact Report] | [Check our Trustpilot reviews]
Your Role
London (Hybrid) | 2 days in the office | Competitive Salary + Benefits
We are seeking a Senior Backend Engineer to join our Customer Authentication team. In this role, you will contribute to developing the essential security and identity platforms that facilitate Funding Circle's shift towards a modern, distributed architecture. You will oversee critical systems that ensure secure customer access and manage complex business relationships across all product teams.
Design, build, and maintain authentication and authorization systems.
Translate product requirements into technical solutions and deliver them effectively.
Collaborate closely with Product Management and other engineering teams utilizing your systems.
Passionate about developing new solutions—much of our team's work involves greenfield projects—while also willing to engage with existing codebases.
Thrives in a complex problem domain, implementing straightforward software systems.
A team player who values collaboration and knowledge sharing over isolated work.
A mentor at heart, generously sharing your time and expertise to advance the skills of stakeholders and fellow engineers.

