SDET - Software Development Engineer in Test

Compare the Market; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Compare the Market in London/Peterborough is seeking an SDET to design and build automated test frameworks, and to integrate testing into CI/CD pipelines. You will collaborate with software engineers, product managers and architects to embed quality early in development.

We expect hands-on experience with API/UI testing, and familiarity with native app testing frameworks or Appium. Hybrid work model offered, with a focus on performance and security testing where possible.

Qualifications

• Commercial experience designing automated tests for APIs, UI and integration testing.
• Experience with native app testing frameworks (Espresso / XCTest) or Appium/ Maestro.
• CI/CD integration of automated tests and version control with Git.

Responsibilities

• Design, develop and maintain scalable automated test frameworks and reusable test solutions.
• Build automated API, integration, end-to-end and non-functional tests.
• Develop and maintain automated tests within CI/CD pipelines for rapid feedback.
• Collaborate with engineers, product managers and architects to define quality strategies.
• Champion testing best practices and shift-left testing.
• Contribute to internal tooling to improve testing efficiency.
• Support root cause analysis and preventative quality improvements.
• Participate in code reviews and continuous improvement activities.
• Evaluate emerging tools and approaches to enhance quality practices.

Skills

Automated test frameworks

API testing

CI/CD pipelines

Git version control

Agile development

Test strategy & planning

Performance testing

Tools

REST Assured

Postman

Espresso

XCTest

Appium

Maestro

Job description

SDET - Software Development Engineer in Test

Function: Tech

Location: Hybrid – London or Peterborough

Curious about what's next? So are we. Join Compare the Market and help to make financial decision making a breeze for millions. At Compare the Market, we're a purpose-driven business powered by tech and AI. We're building high-performing, results-driven teams with the skills, mindset, and ambition to deliver outcomes at pace. Every role here plays a part in driving our mission forward, and we create an environment where you can bring your authentic self, grow a truly characterful career, and see the direct impact of your work on the lives of our customers.

What You’ll Be Doing

• Design, develop and maintain scalable automated test frameworks and reusable test solutions across our products and platforms.
• Build automated API, integration, end-to-end and non-functional tests to ensure the quality, reliability and performance of our applications.
• Develop and maintain automated tests as part of our CI/CD pipelines, providing rapid feedback and supporting continuous delivery.
• Collaborate with Software Engineers, Product Managers and Architects to define quality strategies and embed testing early within the development lifecycle.
• Champion engineering best practices, including test automation, shift-left testing and quality by design.
• Contribute to the development of internal tooling that improves engineering efficiency, test automation and developer experience.
• Support root cause analysis of defects and work collaboratively to identify preventative solutions that improve product quality.
• Participate in code reviews, test strategy discussions and continuous improvement activities to maintain high engineering and quality standards.
• Continuously evaluate emerging tools, technologies and approaches that enhance quality engineering practices across the organisation.

What We’re Looking For

You’ll have commercial experience developing automated testing solutions or software within modern engineering environments (ideally with native app experience) and enjoy solving technical problems through engineering. You’ll already have demonstrable experience in many of the following areas:

• Developing automated test frameworks for API, UI and integration testing
• Proven ability with test automation frameworks. Experience with a native app testing framework like espresso or XCTest (or appium / maestro) would really make you stand out for this role.
• API testing using tools and frameworks such as REST Assured, Postman or similar.
• CI/CD pipelines and integrating automated testing into deployment workflows.
• Version control systems such as Git.
• Cloud platforms and modern software delivery practices.
• Working within Agile development teams.
• Performance, resilience or security testing (desirable).

Why Compare the Market?

We’re a business built for pace and performance. Here, you’ll be encouraged to think differently, act boldly, and deliver brilliantly in a culture that values results and rewards progress. We believe diverse teams make better decisions, and we’re committed to creating an inclusive workplace where everyone feels empowered to grow, contribute, and thrive. If you’re ready to stretch yourself, raise the bar, and grow with a team that’s serious about performance, innovation and purpose, we’d love to hear from you.