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Open nowPosted 3 days ago

QA Automation Engineer (Senior)

Workable (global search)108,016 open roles

Where
Pathum Wan, Bangkok, Thailand
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Your applicationOpen nowQA Automation Engineer (Senior)Workable (global search) · Pathum Wan, Bangkok, Thailand
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7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 7 days.

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  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 3 days ago

Workable (global search) median: 7 days open

The posting

  • Build evaluation suites for LLM and ML features: curated test sets, scoring against reference answers, LLM-as-judge where it is justified, and human review where it is not.
  • Define what "good enough" means with the delivery team before launch, in numbers a client can accept, and hold releases to it.
  • Test retrieval pipelines end to end, covering chunking and indexing, retrieval quality, grounding of the final answer, and behaviour when the right document is simply not there.
  • Write regression tests that tolerate non-deterministic output, using semantic similarity, structured-output validation, tolerance bands, and repeated sampling rather than exact string matching.
  • Cover failure modes that matter to clients: hallucination, prompt injection through user or document content, leakage of data across tenants or sessions, refusal and over-refusal, and degradation on Thai-language input.
  • Track cost and latency alongside accuracy, so that a quality improvement that triples token spend is visible before it ships.
  • Detect drift after release by comparing production samples against the baseline, and raise it early rather than after the client does.
  • Design and maintain automated test suites for APIs, services, data pipelines, and web applications built for client projects.
  • Run tests in CI, keep them fast and stable, and treat a flaky suite as a defect in its own right.
  • Set the test strategy at the start of an engagement: what gets automated, what stays manual, what the exit criteria are, and what evidence the client will receive.

Requirements

  • 4-5 years in test automation, QA engineering, or software engineering with substantial testing ownership.
  • Strong programming ability in Python, or in TypeScript or Java with the willingness to work primarily in Python.
  • Hands-on experience testing an LLM or ML-based product in production or close to it.
  • Practical command of at least one automation framework such as Pytest, Playwright, Cypress, or RestAssured, and experience running suites in CI.
  • Working knowledge of API and data testing, including SQL and validating data through a pipeline.
  • The judgement to decide what deserves automation and what does not, and to say so when a suite is producing noise rather than signal.
  • Clear written and spoken communication in Thai and English.

Benefits

  • Hybrid Working options with Flexible Working Hours.
  • Your Choice of Gear: Mac or Windows? You pick your preferred work equipment.
  • Comprehensive Group Health Insurance.
  • Monthly Grab Transportation credits.
  • Job-related training courses and certificate fee coverage.
  • 10+ days of annual leave.
  • Free snacks and drinks available at the office.
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