Backend Engineer (Java) — Build Fintech APIs & Microservices

ARQ; Greater London; On-site; GBP 75,000 - 110,000; Full time

Benefits offered by this job

Stock options

Discretionary performance bonus

Latest tools and technology

World-class team

Job summary

ARQ is seeking a Backend Engineer to design, develop, and maintain scalable backend services powering our fintech products. You will build RESTful APIs and microservices, focusing on reliability, security, and performance.

The role emphasizes clean code, maintainability, and fast delivery with TDD, DDD, and CI/CD. A strong, collaborative team environment and opportunities to impact our financial infrastructure are available.

Qualifications

• Bachelor's degree in CS/engineering or equivalent.
• Fluent in English with excellent communication.
• Proven experience building back-end systems at scale.
• Experience with Java, Spring Boot, REST APIs, and microservices.

Responsibilities

• Design, develop, and maintain scalable backend systems.
• Build REST APIs and microservices to power products.
• Collaborate with frontend, product, and infra teams to deliver high-quality software.
• Follow TDD/DDD and CI/CD practices to ensure rapid, reliable delivery.

Skills

Java

Backend development

REST APIs

Microservices

TDD

DDD

CI/CD

Communication

English fluency

Education

Bachelor's Degree in Computer Science

Tools

Spring Boot

PostgreSQL

Job description

ARQ is seeking a Backend Engineer to design, develop, and maintain scalable backend services powering our fintech products. You will build RESTful APIs and microservices, focusing on reliability, security, and performance.

The role emphasizes clean code, maintainability, and fast delivery with TDD, DDD, and CI/CD. A strong, collaborative team environment and opportunities to impact our financial infrastructure are available.