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Principal Software Development Engineer in Test (SDET)

UK - London💼 Full-time🗓 2026-07-14 → 2026-07-31

Core

Lead strategy, architecture, and implementation of robust test automation frameworks across financial services projects, championing AI-enabled ways of working to improve engineering productivity and software quality.

Role type

Principal Software Development Engineer in Test (SDET)

Builds

Reusable, scalable test automation strategies and frameworks for web, mobile, and API platforms

Domain

Financial Technology / Quality Engineering

Deliverable

production ML models | product features | dashboards & analysis | infrastructure

Required skills

UI and mobile test automation, API testing (REST/SOAP), cloud-based testing platforms, quality engineering tooling (Jira, Jenkins, GitHub, SonarQube), CI/CD practices, responsible AI usage

Preferred skills

Java, Ruby, or Python development, performance and load testing, cloud platforms (AWS, Azure, OpenShift), DevOps practices, accessibility standards (WCAG/AAA)

Technologies

Selenium, WebDriver, Cucumber, Robot Framework, Postman, JMeter, BrowserStack, Sauce Labs, Appium, AWS, Azure, OpenShift, Tanzu, Cloud Foundry

Responsibilities

Architect reusable, scalable test automation strategies and frameworks; Design, build, and maintain automated test suites for user interfaces, APIs, and backend services; Integrate automated testing into CI/CD pipelines; Lead test data management, performance and load testing, accessibility validation; Mentor engineers and establish testing standards

Seniority

Principal, strategy & mentorship

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