Manual Tester jobs in London

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 SDET (Software Development Engineer in Test) roles. These positions could support the delivery of robust, scalable testing solutions across distributed systems and microservices architectures, helping to ensure quality and reliability at pace.

Roles of this type may sit within agile, collaborative engineering teams working across cloud platforms, containerized environments and modern CI/CD pipelines. The work could involve partnering with development teams to design and implement automated test frameworks, validate APIs and microservices, and maintain data quality across complex systems, with scope to improve testing practices and standards.

Typical role overview

• Location: UK-wide
• Type: Contract · Full-time
• Day Rate: £550–600 per day (senior); £250–280 per day (support level, dependent on experience)
• Requirements: Bachelor's degree in Computer Science or related field
• Domain: QA / Testing / Validation · Automation · Test Engineering

What you would do

Typical responsibilities could include:

• Designing and implementing automated test frameworks for APIs, microservices and distributed systems
• Developing and maintaining test automation across cloud environments (Azure, AWS, GCP) and containerized platforms (Docker, Kubernetes)
• Supporting CI/CD pipeline integration and test execution in continuous delivery workflows
• Writing test code in languages such as Java, Python or C# (.NET / ASP.NET) to validate application functionality
• Collaborating with development teams to identify, document and validate defects
• Maintaining test data quality and supporting data pipeline validation
• Troubleshooting test failures and contributing to improvements in test coverage and reliability
• Supporting SAP environments (SAP S/4HANA, SAP ECC, SAP RISE) where applicable to the role
• Contributing to test strategy and quality assurance practices within the team

What you could bring

Most roles of this type require the following:

Must-have

• Proven experience in test automation and software development engineering in test
• Strong proficiency in at least one programming language (Java, Python, C#, or equivalent)
• Hands-on experience with API and microservices testing
• Working knowledge of CI/CD pipelines and automated test execution
• Experience with SQL and relational databases
• Familiarity with distributed systems and cloud platforms (Azure, AWS or GCP)
• Bachelor's degree in Computer Science, Software Engineering or related discipline
• Right to work in the United Kingdom

Nice-to-have

• Experience with containerization (Docker, Kubernetes)
• Knowledge of infrastructure-as-code tools (Terraform)
• Familiarity with SAP systems (S/4HANA, ECC or RISE)
• Experience with data quality validation and ETL testing
• Linux or Windows system administration skills
• Exposure to Spring Boot, Spring Framework or React
• Power BI or advanced Excel proficiency
• Certifications in QA, BPMN, UML or related methodologies

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 work with modern, scalable testing technologies and cloud-native platforms
• Scope to improve testing practices, automation frameworks and quality standards within delivery teams
• Exposure to diverse technology stacks and complex distributed system architecture
• Potential for continuous learning in emerging areas such as containerization, infrastructure automation and data quality
• Collaborative working environment with development and QA teams
• Potential progression toward senior test automation or test leadership roles, where supported by the role facts
• Flexibility and contract-based engagement

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.

Disclaimer:
Please note that the content of this advert does not represent a live vacancy or any guarantee of future vacancies, and by responding to this advert you agree to us adding your details to our database for future opportunities.