At a Glance
- Tasks: Design and maintain automated test suites for middleware APIs, ensuring reliability and performance.
- Company: Join Subway, a global leader in the fast-food industry, focused on innovation and growth.
- Benefits: Competitive salary, health benefits, and opportunities for professional development.
- Other info: Dynamic team environment with a focus on collaboration and career growth.
- Why this job: Make a real impact on a globally recognised brand while working with cutting-edge technology.
- Qualifications: 5+ years in quality engineering, experience with API testing, and proficiency in automation tools.
The predicted salary is between 60000 - 80000 £ per year.
We are Subway Headquarters! A dedicated team of professionals supporting thousands of franchisees around the globe.
Ready to build what's next with one of the world's most iconic brands? Why Join Subway? At Subway, we are not standing still. We are building. This is a business focused on what matters most: growing franchisee profitability, strengthening our brand and creating long-term value. The people who thrive here are the ones who want to make a real impact. You will not just do the work. You will shape it. We move fast. We think like owners. We make decisions that matter. We hold ourselves to a high standard because what we do directly impacts thousands of franchisees around the world. If you bring energy, accountability and a bias for action, you will fit right in. We take the work seriously, but we also know the best results come from teams that support each other, celebrate wins and show up ready to build something better every day. This is your chance to be part of what's next.
About the Role: Subway's middleware platform is the integration backbone of our digital commerce stack – connecting front‑end applications (iOS, Android, Web, Kiosk) with internal systems and third‑party partners like DoorDash and Uber Eats. The Senior Quality Engineer, Middleware will own the validation of the reliability, performance, and correctness of the services built by our Senior Software Engineers. You’ll design and execute test strategies covering load and stress testing, contract validation, fault injection, and end‑to‑end integration scenarios across a distributed, serverless AWS architecture. AI‑assisted development is a core part of how our team works – you’ll use tools like GitHub Copilot and Claude daily to accelerate test authoring, generate test data, and analyze failure patterns.
Responsibilities
- Design, build, and maintain automated test suites covering functional, integration, and contract testing for middleware APIs and services.
- Leverage AI‑assisted tools (GitHub Copilot, Claude, and similar) as a core part of daily quality engineering work – from generating test cases and synthetic test data to analyzing failure patterns and producing coverage documentation.
- Own performance and reliability validation: design and execute load, stress, spike, and soak tests against middleware services.
- Partner closely with Senior Software Engineers throughout the development cycle – reviewing designs for testability, aligning on test strategy, contributing to acceptance criteria, and integrating automated quality gates into CI/CD pipelines.
- Validate third‑party integrations (DoorDash, Uber Eats, and similar partners) through contract tests, sandbox/staging environment testing, and failure mode analysis.
- Track, report, and drive resolution of quality metrics across the middleware portfolio; maintain test documentation and contribute to incident post‑mortems.
Qualifications
- 5 or more years of quality engineering or software engineering experience, with a focus on backend API and integration testing.
- Demonstrated experience designing and executing automated test suites for RESTful APIs in a distributed or microservices environment.
- Hands‑on experience with performance and load testing tools and methodologies.
- Experience writing test automation in JavaScript/TypeScript, Java, or Python.
- Working knowledge of AWS serverless services (Lambda, API Gateway, DynamoDB, SQS/SNS).
- Experience integrating automated tests into CI/CD pipelines (Azure DevOps, GitHub Actions, or equivalent).
- Proficiency with AI‑assisted development tools (GitHub Copilot, Claude, or equivalent).
- Familiarity with contract testing approaches and consumer‑driven contract frameworks.
- Bachelor's degree or higher in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
People Management: No | Department: Digital
Sr. QE (Senior Quality Engineer, APIs) employer: 慨正橡扯
At Subway, we pride ourselves on being a dynamic and innovative employer that empowers our team members to make a real impact. With a strong focus on collaboration and support, we foster a work culture where achievements are celebrated and personal growth is encouraged. As a Senior Quality Engineer, you'll have the unique opportunity to work with cutting-edge technology in a fast-paced environment, all while contributing to the success of one of the world's most iconic brands.
