Senior Java Backend Engineer | Microservices, Cloud, AI

Randstad Technologies; Lancashire; Hybrid; GBP 129,000 - 203,000; Full time

Job summary

Randstad Technologies is seeking a Senior Backend Engineer (Java) in Manchester. The role focuses on designing and scaling high-performance distributed systems, leading technical initiatives, and mentoring engineers in a fast-paced Agile environment.

You will work on microservices, REST APIs, and modern CI/CD pipelines, leveraging AI tools like Claude and Codex to accelerate delivery while ensuring code quality and observability.

Qualifications

• 5+ years of hands-on backend engineering with Java and Spring Boot.
• Experience building distributed microservices and REST APIs.
• Proven ability to lead initiatives and mentor engineers.
• Hands-on with Kubernetes, CI/CD, and cloud deployments.

Responsibilities

• Architect and build scalable backend microservices and REST APIs.
• Provide technical leadership and code reviews across teams.
• Triage production issues, perform root-cause analysis, and improve observability.
• Drive automated testing: unit, integration, and end-to-end.
• Collaborate with product, frontend, and platform teams; optimize CI/CD pipelines.

Skills

Java

Spring Boot

Distributed systems

REST APIs

Code reviews

Automation testing

Tools

Kafka

Kubernetes

CI/CD

Claude

Codex

Job description

Randstad Technologies is seeking a Senior Backend Engineer (Java) in Manchester. The role focuses on designing and scaling high-performance distributed systems, leading technical initiatives, and mentoring engineers in a fast-paced Agile environment.

You will work on microservices, REST APIs, and modern CI/CD pipelines, leveraging AI tools like Claude and Codex to accelerate delivery while ensuring code quality and observability.