What Does an SDET Do?

An SDET is a software development engineer in test: someone who uses coding and testing skills to help teams check software quality. QA engineers and automation testers may share some of these responsibilities, depending on the employer. The work includes deciding what could fail for users and building reliable checks. Playwright, Cypress and API automation support that work; they do not replace a clear testing approach.

Who this is for: For QA professionals, SDETs and hiring teams defining test roles

MAANIH Talent · General professional guidance, not a vacancy or a hiring guarantee.

Illustrative scene of QA & Software Testing professionals collaborating

Identify the risk before choosing the test

Start with a journey that matters: signing in, completing a form or receiving an outcome. A browser test can show that a person could finish the journey. A service-level test may be better for a wide range of authorization errors or input cases. Exploratory testing can reveal surprises neither automated layer anticipated.

Describe how requirements became useful scenarios. Include failure, recovery and accessibility paths where they matter, rather than testing only a success message. Testing everything through a browser is slow and can obscure the location of a failure.

  • Identify the user-visible risk and the system boundary involved.
  • Select a small number of meaningful browser journeys.
  • Use API and component checks for cases that do not need a full browser.

Make automation trustworthy

Playwright's own guidance favors testing behavior visible to a user and keeping tests isolated. Stable assertions describe what the application should show, not its internal CSS implementation. This makes a check useful when an interface is redesigned without changing the outcome.

Cypress and Playwright have different ecosystems; list either only when you can explain how you used it. Test data and environment readiness are part of the work. A flaky check that passes on retry without explanation can delay a team or hide a genuine regression.

  • Explain how a test receives and cleans up its data.
  • Describe one investigation that separated a product issue from a test problem.
  • Show how failures were reported so a developer could act on them.

Connect browser, API and delivery checks

An API automation example can cover invalid input, permissions, duplicate requests and response contracts. Browser coverage can then concentrate on navigation, interactive feedback and the real user journey. CI can provide quick feedback, but its value depends on the quality of the checks and the team's response to failures.

Accessible interfaces deserve direct checks: keyboard access, meaningful labels, focus order and readable responsive states. Automation helps, but some issues require human observation and judgment. Be clear about what was automated and what you reviewed directly.

Turn quality work into a strong profile

For a Talent Passport, pick a meaningful risk. Describe the application behavior, the test design, a failure you found or prevented, and the part you owned. A sanitized code sample or test plan can help if sharing it is permitted.

A count of test cases or a claim of zero defects says little without context. Explain how the team became better able to detect, understand or recover from a failure. This gives a hiring organization something concrete to discuss.

Turn this guide into your profile

  • Create an account and verify your email.
  • Complete your profile; you can optionally upload a .pdf or .docx resume during setup, and manage resumes later in your Talent Passport.
  • Keep your Talent Passport current as your work changes.

Official sources

Create your Talent Passport

Create your account, verify your email, then complete your profile and optionally upload a .pdf or .docx resume while you set it up. Add or replace resumes later from your Talent Passport. You choose your visibility and whether to accept contact requests, and people make every hiring decision.

  1. Step 1

    Create account and verify email

    Register, then confirm your email address before signing in.

  2. Step 2

    Create your profile

    After signing in, complete your professional profile in a few guided steps.

  3. Step 3

    Upload your resume

    Optionally add a .pdf or .docx resume. You can manage resumes later in your Talent Passport.

Technology TalentTalent InsightsTalent Passport Already registered? Sign in to manage resumes in your Talent Passport.