Software Development Engineer in Test

Software Development Engineer in Test roles combine coding expertise with quality assurance to build and maintain automated testing frameworks that validate complex systems. These positions could involve designing test architecture, developing automation solutions, and collaborating with engineering teams to ensure delivery quality at scale.
Please note the content of this advert does not represent a live vacancy.
About the opportunity
This is an opportunity to register your interest in future Software Development Engineer in Test positions within a fast-paced technical environment. Roles of this type may involve partnering with development and operations teams to build scalable test automation solutions, working across microservices and distributed systems in cloud-based infrastructure. The work could include architecting automated test strategies, developing robust test frameworks and contributing to continuous integration and deployment pipelines that support rapid, quality-assured delivery.
Typical role overview

• Location: Leeds, West Yorkshire, England
• Type: Contract • Full-time
• Rate: £450-550 per day
• Domain: QA / Testing / Validation • Software Development Engineering

What you would do
Typical responsibilities could include:

• Designing and developing automated test frameworks and test infrastructure
• Building test automation across APIs, microservices and distributed systems
• Implementing and maintaining CI/CD testing pipelines and automation strategies
• Writing clean, maintainable automation code in languages such as Java, Python or similar
• Collaborating with development teams to define testability requirements and quality gates
• Troubleshooting test failures and improving test reliability and execution speed
• Contributing to test architecture discussions and advocating for quality practices

What you could bring
Most roles of this type require the following:
Must-have

• 3+ years' hands-on software development or test automation experience
• Strong programming skills in Java, Python or similar languages
• Practical experience building test automation for APIs and microservices
• Knowledge of CI/CD tools and cloud platforms such as Azure, AWS or GCP
• Working knowledge of SQL and Linux
• Bachelor's degree in Computer Science or equivalent practical experience
• Authorization to work in the United Kingdom

Nice-to-have

• Experience with .NET, ASP.NET, Spring Boot or similar frameworks
• Kubernetes, Docker or containerisation knowledge
• Experience testing distributed systems or data pipelines
• Familiarity with Terraform, infrastructure-as-code or DevOps practices
• CSDR, QMS or QARA certification
• Exposure to SAP S/4HANA or SAP ECC environments

What roles of this type could offer
Most roles of this type offer the following, dependent on the industry and seniority of the role:

• Opportunity to shape testing strategy and influence quality standards across technical delivery
• Experience building automation at scale across microservices and cloud infrastructure
• Exposure to modern DevOps and CI/CD practices
• Scope to develop both coding and architectural problem-solving skills
• Potential progression toward technical leadership or principal engineering roles, where supported by the role facts
• Contract flexibility with daily rates reflecting experience and expertise

About SThree
SThree is the global STEM workforce consultancy.
We advise businesses, build expert teams and deliver project solutions to outpace tomorrow, together.
Across the UK, we connect talented specialists with cutting-edge opportunities across technology, engineering, life sciences and financial services supported by our offices in London, Birmingham, Manchester, Glasgow and Leeds
How to register interest
If you are interested in being added to our database to be considered for future opportunities, registering is quick and easy. No cover letter required. We will be in touch when we are instructed on these roles to discuss the next step in your career.