Mitsubishi Electric – UK
Developer In-Test
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About us
Mitsubishi Electric is a global innovator in energy, automation, and building technologies. From air conditioning and lifts to robotics and power systems that power homes and businesses across the UK. With 150,000 employees worldwide and 850 in the UK, we’re creating “Changes for the Better.” Join us to make a real impact for a smarter, sustainable future.
Want to know more about the company? Take a look here: MITSUBISHI ELECTRIC UNITED KINGDOM
Role summary
To embed quality throughout the software development lifecycle by designing, developing, and maintaining automated test software using modern software engineering practices. The role is responsible for developing and maintaining automated tests for user interfaces (UI), APIs, and backend services and processes, as well as reusable test frameworks and tooling. Working collaboratively with developers, product teams, and other stakeholders, the Developer in Test identifies defects early, promotes continuous quality, and helps deliver reliable, secure, and high-quality software.
Skills/Responsibilities
- Strong proficiency in C# and .NET (preferably.NET 6/10)
- Good working knowledge of TypeScript
- Experience building and maintaining automated test frameworks using: xUnit or similar, MS Test Runner, Playwright (.NET), Appium
- Experience testing applications built with: Blazor (or React/Angular), NET MAU, Minimal APIs, HTML & CSS-based web applications
- Designing scalable, maintainable UI and API automation frameworks
- Implementing:
- Page Object Model (POM) or Screenplay pattern
- Reusable test utilities and abstractions
- Parallel test execution strategies
- API test automation including: REST API validation, Authentication handling (JWT, OAuth where applicable), Contract and integration testing approaches, Cross-browser and cross-device testing strategy
- Strong understanding of:
- SOLID principles
- Testability and design-for-test
- Experience with:
- CI/CD pipeline integration
- Test reporting and quality gates
- Git-based workflows
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Experience
- A software engineer first, with a testing specialism
- Comfortable working across UI, API, mobile, and cloud layers
- Capable of designing maintainable automation frameworks
- Able to operate independently while contributing to team-level quality strategy
- Familiar with cloud-native and event-driven architectures hosted on AWS
- Experience contributing to test architecture decisions
- Familiarity with contract testing approaches
- Knowledge of containerisation concepts (Docker)
- Exposure to infrastructure-as-code concepts
- Experience mentoring junior testers
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In return for your commitment, we will offer you some fantastic benefits
- Generous annual leave allowance - 25 days per year, plus bank holidays increasing by one day with each year of service until 27 days per year.
- Flexible Working - we offer a range of flexible working options that include working from home or hybrid working.
- Pension.
- Life Assurance.
- Group Income Protection Scheme.
- Private Medical, Dental Insurance, and a Cash Plan Scheme - Single cover funded by Mitsubishi.
- Access to Mitsubishi’s very own discount platform.
- Colleague Referral Scheme.
- Holiday Buy.
- Long Service Awards.
- Cycle to Work Scheme.
- Sports & Social Club (Recent events such as theatre trips, Ascot, Paintball, The Darts)
- Employee Assistance Programme including additional services Eldercare & Best Doctors.
Equality and Diversity
As the business environment around Mitsubishi Electric Group is rapidly changing, providing a workplace where employees can work to their full potential regardless of gender or age is essential to business development. Based on this, Mitsubishi Electric promotes employee diversity through the following measures.
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