QA Engineer

Job Description

We’re rebuilding how quality works here, and we’re being upfront about the starting point: our automated coverage is thin, testing sits more separately from development than we want, and we have almost no data about our own quality.

You’ll change that. You’ll build the automation framework our developers contribute to, coach them until testing is a normal part of their work, and establish how we measure quality in the first place. Unit tests already belong to the developers — our direction is for that ownership to extend further, with you building the foundation and the capability that makes it realistic.

Responsibilities

Enhance and own the test automation framework developers write in — fast, stable, and easy enough that people actually use it
Build CI quality gates, test data, and environments so a developer can test properly without waiting on anyone
Make quality measurable by design: define success metrics for every meaningful change, establish the baseline, track the impact, and use the data to guide decisions, validate outcomes, and drive further improvements
Pair with and coach developers on test design — the goal is the team testing more
Join refinement and design early, and push on requirements that can’t be tested as written
Build deep product expertise and use it to focus effort on the risks that actually matter
Do exploratory and risk-based testing where human judgement beats a script

Requirements

6+ years in software testing, with real depth in both automation and exploratory testing
You’ve enhanced or substantially rebuilt a test framework, not only written tests inside someone else’s
Strong programming ability, and comfort creating and debugging CI pipelines yourself
Data literacy: you can define a metric, build the collection for it, and say when it’s lying
A track record of changing how other engineers work, through coaching and influence rather than authority
Curiosity about the product and the people using it, not just the code

Our stack: TypeScript, GitHub Actions, Docker. Coming from Python, Java, C# or Go is fine — we’d rather have the engineering judgement and let you pick up the language.

Salary

5M-10M yen (Based on performance)
Salary revision twice or more a year
Trial period: (same conditions) 3 months
- (There will be real-time opportunities for advancement during the first six months.)

Working Hours

Flextime (Core time 10:00 to 14:00)

Benefits

Full five-day work week (Saturday & Sunday off), public holidays, summer and winter holidays, annual paid leave, special leave
Various insurances
VISA Support
Relocation support
Company provides a computer
Indoor principle non-smoking (smoking room available)