Data Wow Co., Ltd.
QA Automation Engineer (Senior)
atData Wow Co., Ltd.- 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.
- 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.
Skills required
- Automation
- TypeScript
- Python
- Java
- English (Fair)
Experience required
- 4 years
Career level
- Senior Level
Skills optional
- SQL
- Thai (Fair)
Salary
- 64,210 - 89,180 THB, Negotiable
Job function
- Engineering
Job type
- Full-time
Company overview
Size:10-50 employees
Industry:Information Technology
Location:Bangkok
Website:www.facebook.com/datawowio/
Founded in:2013
Data Wow is a Japanese-Thai technology startup focused on content and media moderation systems. The organization is growing its involvement in micro-task outsourcing solutions. Operations are supported by a Tokyo-based parent enterprise that develops mobile and web applications r ...
Why join us: Data Wow is a Thai data and AI consultancy where engineers and data scientists ship real products for enterprise clients.
Read more
Job location: Pathum Wan
Head office: 1778 Summer Hub Office 6th Floor, Sukhumvit Rd, Phra Khanong, Khlong Toei, Bangkok 10110
Benefits
- English lessons
- Transport Allowance
- Flexible working hours
- Five-day work week
- Health Insurance
- Social Security
- Learning & Development Opportunities
- Performance bonus
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