Java / golang Developer

Job description

Job Title: Java Developer (Golang)

Contract: 6 months (Inside IR35) – Extendable

Location: Hybrid (2–3 days per week on-site)

Rate: DOE

Client: Leading Financial Services Organisation

Overview

A leading financial services client is seeking an experienced Java Developer with strong Golang exposure to join a critical engineering programme. This role will focus on building and enhancing high-performance backend services within a modern, cloud-based architecture.

You’ll be working alongside senior engineers on scalable, resilient systems that support business-critical platforms, with a strong emphasis on clean code, performance, and reliability.

Key Responsibilities

• Design, develop, and maintain backend services using Java and Golang
• Contribute to the build and evolution of microservices-based systems
• Develop and maintain APIs and distributed services
• Collaborate with architects, engineers, and product teams on solution design
• Ensure code quality through testing, reviews, and best practices
• Support performance, scalability, and security requirements
• Work within Agile delivery teams

Required Skills & Experience

• 5+ years of commercial software development experience
• Strong commercial experience with Java
• Hands-on experience developing services in Golang
• Experience building backend systems and APIs
• Solid understanding of microservices and distributed architectures
• Experience with Spring / Spring Boot
• Strong problem-solving skills in complex technical environments

Desirable Experience

• Background in financial services or regulated environments
• Cloud platforms: AWS, Azure, or GCP
• Containerisation and orchestration (Docker, Kubernetes)
• Event-driven or messaging systems (Kafka, RabbitMQ, etc.)
• Exposure to DevOps or CI/CD pipelines

Contract Details

• Initial 6-month contract, with strong extension potential
• Inside IR35
• Hybrid working: 2–3 days per week on-site
• Competitive day rate, dependent on experience

Extra information

Status

Open

Education Level

Secondary School

Location

West Sussex

Type of Contract

Full-time jobs

Published at

30-01-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English