Lead Software Engineer Java
London • Permanent • Competitive

Lead Software Engineer Java

Easy Apply
London On-site Permanent 7 Applications
Competitive
Full-time
Posted 10 Sep 2026
Expires 10 Oct 2026

Job description

You will design, develop, and maintain scalable, secure, high-performing backend systems. You will build REST APIs and microservices, improve existing systems, and support card payments, treasury management, transaction booking, and crypto liquidity. You will work with Java, PostgreSQL, Spring Boot, TDD, DDD, and continuous integration and delivery.

Responsibilities

  • Develop greenfield systems and improve existing systems
  • Build REST APIs and microservices
  • Evolve systems supporting card payments, treasury management, transaction booking, and crypto liquidity
  • Develop backend services using Java and PostgreSQL
  • Apply clean code, TDD, DDD, and continuous integration and delivery practices

Requirements

  • Demonstrable backend development experience with fluency in Java
  • Bachelor's degree or above in Computer Science, Mathematics, Physics, or another Engineering or Science discipline
  • Excellent written and verbal English communication skills
  • Track record of building complex products used by millions of people in hypergrowth startups

Benefits

  • Stock options
  • Discretionary performance bonus
  • Latest tools and technology
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