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Senior Software Engineer in Test, Python

United Kingdom, Cambridge · Job Posted January 06, 2026
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Job Description

As a Senior Software Engineer (SDET), you'll be the transformational force that revolutionizes our testing approach. You'll leverage AI and advanced analytics to identify quality gaps, architect intelligent testing solutions, and establish new standards for test effectiveness that go beyond simple coverage metrics.

Job Responsibility

  • Design and implement intelligent test analysis systems that identify quality gaps, predict failure patterns, and optimize test effectiveness
  • Design systems that collect, analyse and act on the testing data to continuously improve on the quality processes
  • Experience with systematic regression tracking and implementing process to prevent regression reoccurrence
  • Establish new methodologies for measuring and improving test quality beyond simple pass/fail metrics, focusing on regression prevention and production reliability
  • Leverage AI-powered tools for automated failure analysis, root cause identification, and test flakiness scoring
  • Define and implement architectural patterns that make testing more effective, maintainable, and aligned with business impact

Requirements

  • 5+ years of hands-on experience with test architecture and automation systems design
  • 8+ years of programming experience across multiple languages with Python
  • Proven track record in driving test transformation: Experience leading initiatives that significantly improved test effectiveness and reduced production issues
  • AI expertise for testing: Ability to design, implement, and optimize solutions leveraging LLMs, and predictive analytics for quality assurance
  • Knowledge of continuous integration tools (Jenkins/GitLab, TeamCity, AWS) and their optimization for quality gates
  • Advanced test analysis skills: Experience with test flakiness analysis, failure pattern recognition, and automated root cause identification
  • Excellent verbal and written communication skills with ability to influence senior leadership and cross functional teams on quality initiatives
  • Some working knowledge of C++
  • Leadership experience mentoring engineers and driving organizational change in testing practices
  • Certifications or training in AI/ML or AI testing (e.g., Coursera AI for Everyone, Google AI Engineer, ISTQB AI Testing Foundation)

What we offer

  • global access to mental health and financial wellness support and resources
  • local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension)
  • employees can take time off work for vacation and other personal reasons

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