Backend Engineer - London

  • Arqfinance
  • 21/05/2026
Full time Information Technology Telecommunications

Job Description

Location

London

Employment Type

Full time

Location Type

Hybrid

What we're looking for

As a Backend Engineer, you'll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You'll collaborate with a talented team to create solutions that drive financial inclusion and transform the way people manage their money.

What you'll be doing
  • Work on greenfield development and improvement of existing systems
  • Build REST APIs, engineering microservices, and evolve systems that the business depends on (card payments, treasury management, transaction booking, crypto liquidity)
  • Use Java 25 on the backend with Postgres database and Spring Boot; focus on clean code, maintainability and fast turnaround with TDD, DDD, and continuous integration & delivery
What you'll need
  • Demonstrable experience in backend development, with fluency in Java
  • Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or other Engineering / Science disciplines
  • Quick learner with an ambitious and results driven personality; excellent communication skills, English fluency, verbal and written
  • Track record of building complex products used by millions in hypergrowth startups
Benefits
  • Sign on and discretionary stock options bonus
  • Paid annual leave
  • Ownership of your development process and direct impact on customers
  • Access to latest technology and a strong, supportive team