Cognizant

Junior SDET (Software Development Engineer in Test)

Cognizant
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5 months ago
London, United KingdomEntry Level

Responsibilities

  • Design and execute test cases, automated scripts, and regression suites for web, API, and backend services.
  • Support defect triage, test environment readiness, and quality activities across release cycles.
  • Review and validate AI-generated code and outputs, including prompt testing and non-deterministic behavior.
  • Use scripting and CI/CD skills to support test automation pipelines.
  • Monitor quality metrics and test coverage, identify automation workflow failures, and escalate unexpected AI behavior.
  • Contribute quality perspectives to Agile ceremonies and sprint definition of ready and definition of done.

Requirements

  • Understand software testing fundamentals, including test cases, equivalence classes, and defect lifecycles.
  • Have working knowledge of at least one of Java, Python, C#, or JavaScript.
  • Have familiarity with one or more of Selenium, Playwright, Cypress, Webdriver IO, Jmeter, or Loadrunner.
  • Be familiar with Git and understand how test automation pipelines fit into Azure DevOps or Jenkins.
  • Understand Agile ceremonies and the role of quality within a sprint.
  • Be able to critically evaluate AI-generated outputs and recognize when behavior is unexpected.
  • Be eligible for SC clearance.

Benefits

  • Hybrid work arrangement with regular client travel.
  • Work on UK government accounts focused on quality and resilience.
  • Access to Cognizant’s AI ecosystem, including Synapse skilling, Agent Foundry, and Neuro AI tooling.
  • Opportunity for accelerated early-career development in AI-led quality engineering.

Tech Stack

Apache JMeterC#CypressGitJavaJavaScriptJenkinsPythonSelenium

Categories

Cognizant

About Cognizant

10,000+ employees

Cognizant is a public IT services and consulting firm that designs, builds, and runs enterprise technology, including digital engineering, cloud modernization, data/AI, and managed services. It sells consulting, systems integration, and outsourcing on multi-year engagements to large enterprises in healthcare, banking, retail, communications, and manufacturing. Founded in 1994 and headquartered in Teaneck, New Jersey, Cognizant is NASDAQ-listed (CTSH) and a Fortune 500 company.

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