I will debug and stabilize your laravel or PHP app with regression tests

Y
yuten0901
Y
yuten0901
Yusuke Miyajima

About this gig

I investigate and stabilize existing Laravel and PHP applications by reproducing the problem, tracing the root cause, making the smallest safe change, and adding regression evidence.


Typical scope includes:

exceptions and unexpected behavior

validation, authorization, and state-transition defects

database, API, queue, CSV, and integration problems

focused performance and timeout investigation

regression tests and verification notes


My public Laravel/Vue reference includes CSV import, row-level validation, reporting, authorization, layered domain/API/UI tests, static analysis, and a documented 25-item development defect log.


You receive the root-cause explanation, scoped code changes, tests where practical, and written verification steps. I work asynchronously and do not require video meetings.


Please send the framework and PHP version, reproduction steps, expected behavior, logs with secrets removed, repository area, test commands, deployment constraints, and acceptance criteria. Production deployment and unrelated feature work are separate scope.

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Get to know Yusuke Miyajima

Yusuke Miyajima

API Automation and QA Developer

  • FromJapan
  • Member sinceAug 2026
  • Languages

    Japanese, English
I am a software developer experienced in web development and quality assurance. I build reliable REST APIs, Python automation, Laravel and Vue features, data-processing workflows, and automated tests. My tools include Python, PHP, Laravel, JavaScript, TypeScript, Vue, Playwright, SQL, Docker, and CI. I focus on scope, maintainable code, realistic edge cases, reproducible testing, and useful documentation. I am a native Japanese speaker and communicate in written English. I prefer clear asynchronous communication so requirements, progress, decisions, and test evidence remain easy to review.