Senior Backend Engineer — Java, Spring Boot, Fintech APIs

ARQ; Greater London; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Discretionary performance bonus

Latest tools and technology

Job summary

ARQ is a fast-growing fintech redefining how people move money across borders. As a Backend Engineer, you’ll design, develop, and maintain scalable systems that power our innovative products and enable financial inclusion.

You’ll join a world-class team solving big challenges with modern tech in a fast-paced environment. The role focuses on greenfield work and improving existing systems, building REST APIs and microservices, and evolving critical components like payments and treasury management.

Qualifications

• Backend development experience with Java
• Bachelor's degree in CS, Math, Physics, or related field
• Excellent communication in English (verbal and written) and ability to work in a fast-growing team

Responsibilities

• Greenfield development and enhancement of existing systems
• Build REST APIs and microservices powering core platform
• Evolve systems such as payments, treasury, and transactions booking
• Focus on clean, maintainable code with TDD, DDD, and CI/CD practices

Skills

Java

Backend development

REST APIs

Microservices

TDD

DDD

CI/CD

English communication

Education

Bachelor's degree in Computer Science or related field

Tools

Spring Boot

PostgreSQL

Job description

ARQ is a fast-growing fintech redefining how people move money across borders. As a Backend Engineer, you’ll design, develop, and maintain scalable systems that power our innovative products and enable financial inclusion.

You’ll join a world-class team solving big challenges with modern tech in a fast-paced environment. The role focuses on greenfield work and improving existing systems, building REST APIs and microservices, and evolving critical components like payments and treasury management.