Senior Software Engineer

Location: Sheffield (2 days onsite, 3 days WFH)

Duration: 12-month contract

IR35 Status: Inside IR35

Overview

We are seeking an experienced Java Developers to join a long-term programme delivering high-quality, scalable backend services. You will work within a collaborative Agile team focused on modern engineering practices, strong testing culture, and continuous delivery.

This role offers a hybrid working model with 2 days per week onsite in Sheffield and the remainder remote.

Key Responsibilities

• Design, develop and maintain robust backend services using Java and Kotlin
• Write clean, testable and maintainable code following TDD practices
• Collaborate with Product Owners, QA and DevOps teams in an Agile environment
• Participate in code reviews and contribute to engineering best practices
• Improve system performance, reliability and scalability
• Support CI/CD pipelines and automated testing frameworks
• Contribute to architectural discussions and technical decision making

Required Skills & Experience

• Strong commercial experience with Java (8+)
• Hands-on experience with Kotlin
• Proven experience working with Test-Driven Development (TDD)
• Experience building RESTful APIs and microservices
• Experience with Spring / Spring Boot
• Familiarity with CI/CD pipelines and automated testing
• Experience working in Agile / Scrum environments
• Strong communication and collaboration skills
• Experience with cloud platforms (AWS / Azure / GCP)
• Experience with monitoring and observability tools

Working Arrangements

• Hybrid: 2 days onsite in Sheffield, 3 days remote
• 12-month contract with potential extensions

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