Senior Backend Engineer

🔒 Confidential Employer
Posted 7 May 2026
LOCATION
London
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Software Engineering
This role is not offered with visa sponsorship, though the employer is a licensed UK sponsor

SKILLS

Java Spring Boot GCP Kubernetes Microservices SQL NoSQL CI/CD

FULL DESCRIPTION

Senior Backend Engineer at [Employer hidden — sign up to reveal]

[Employer hidden — sign up to reveal] is hiring a Senior Backend Engineer for its fintech platform. Hybrid based in London or Warsaw, or fully remote from Poland. Requires 8+ years experience, C1 English, and eligibility to work in UK/Poland without visa sponsorship.

Description

Join Our Mission Help ambitious founders scale their businesses through innovative financing solutions. We value curiosity, continuous learning, and impactful problem-solving.

Tech You’ll Use

  • Core: Java 21, Spring Boot/Cloud 3.3
  • Infra: GCP, Kubernetes
  • Databases: SQL/NoSQL (picked per use case)

Your Impact ✍️

  • Build secure microservices for financial systems.
  • Own services end-to-end (design → deploy → monitor).
  • Improve code quality with automation & modern practices (CI/CD pipelines in 15 mins).
  • Stay ahead with cutting-edge tech and share insights.
  • Thrive in a meetings-light, Kanban-driven team.

Why [Employer hidden — sign up to reveal]?

  • Create a fintech solution chosen by 1000s of businesses.
  • Build a product you can help shape and have impact on.
  • Backed by top VCs (LakeStar, SeedCamp, etc.).

Requirements

  • A minimum C1 level of English proficiency is required.
  • Minimum 8 years of experience
  • Passion for learning Java/Spring nuances.
  • Testing expertise.
  • Team player who values autonomy.
  • Happy to come to the office twice a week

Benefits

  • Unlimited paid holiday
  • Personal growth fund
  • Macbook Pro

We can only consider applications from candidates who are eligible to work in the UK/Poland without requiring visa sponsorship.

Founded in 2019 to fix startup funding gaps.

[Employer hidden — sign up to reveal]

Sign up free — access 45,000+ UK sponsor-licensed jobs