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Principal Software Development Engineer in Test (SDET)

Capco

london, england, United-Kingdom Full-time May 26, 2026
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Opportunity Description

Principal Software Developer in Test (SDET)

Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent

Drive test automation innovation and engineering excellence in financial technology

The Role

As a Principal SDET at Capco, you'll lead the strategy, architecture, and implementation of robust automation testing frameworks across financial services projects. You’ll work closely with cross-functional teams to deliver quality-first solutions using the latest tools and practices. You’ll also mentor engineers, foster best practices in test automation, and help shape our quality engineering capability.

What You’ll Do

  • Architect reusable, scalable test strategies and frameworks across web and mobile platforms
  • Design, build, and maintain test automation scripts for UI, APIs, and services
  • Integrate testing tools into CI/CD pipelines and manage cloud-based testing solutions
    Full-time IT & Technology

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