About the role
We’re on a mission to back the UK’s small businesses like no one else.Small businesses are the backbone of the economy, and we’re here to help them win.We’ve built a platform that uses clever data to get them the funding they need in minutes, not weeks.
At Funding Circle, we have the restless energy of a fintech start‑up with the stability of a public company. It’s a unique mix that gives Circlers the autonomy to take ownership and the scale to make an impact that truly counts.
We’re a high‑performing team that chooses to lift each other up. We challenge, we champion, and we have each other’s backs — because we know that when we stand together, we move faster and build better.
Last year alone, the businesses on our platform generated £7.2bn for the UK economy.
Location & Compensation
London (Hybrid) – 2 days in the office. Competitive salary and benefits.
Role: Senior Engineer – Customer Auth
The Customer Auth team builds the foundational security and identity platforms that power Funding Circle’s transition to a modern, distributed architecture. The team owns the critical systems responsible for securing customer access and managing complex business relationships for all product teams.
Responsibilities
- Build, run and maintain authentication and authorisation systems.
- Take product scope, design the technical solution and deliver it.
- Work closely with Product and other engineering teams that use your systems.
- Engage in green‑field development while also digging into older codebases as needed.
- Work in a complex problem domain that is implemented with simple software systems.
- Collaborate – encourage pairing and work together instead of siloed work.
- Teach – generously share time and expertise to help stakeholders and fellow engineers find solutions.
Qualifications
- Experienced in Python.
- Senior level – able to lead and influence architectural decisions while mentoring and up‑skilling junior engineers.
- Strong fundamental programming skills with experience in distributed systems.
- Familiar with developing on AWS, Kubernetes, Kafka and serverless.
- Knowledgeable of Agile, TDD and CI/CD.
- Excellent communication skills, both written and spoken.
- Engages actively and collaboratively with team members and stakeholders.
- Able to architect custom AI solutions and smart automated systems that are safe, maintainable and aligned with our long‑term mission.
- Acts as a technical bridge and mentor, training “builders” across the company from basic AI usage to sophisticated system creation.
Why join us?
We back you to build an incredible career. As a flexible‑first employer, we use a “best of both” approach. We’ll see you in our London office to collaborate – with barista coffee and subsidised Just Eat lunches on us.
Benefits
- Flexibility: A benefit allowance you can tailor to your own life and family.
- Health: Private medical and dental, health assessments, and access to a digital GP.
- Wealth: Life assurance, share schemes and financial coaching.
- Development: A dedicated annual learning allowance.
- Lifestyle: Electric car and cycle‑to‑work schemes, plus season ticket loans.
- Award‑winning parental leave policies.
Ready to join a mission that matters? We’d love to chat!
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