Senior Full-Stack Engineer
New
G
G2iAPI/Developer Tools
Remote within Europe. Preferred locations: Czech Republic, Ukraine, Poland, or the UK, Working-hour overlap will be discussed before an offer.ContractSenior
SalaryUp to $60 USD/hour
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Job Details
- Languages
- Professional English communication.
- Required Skills
- PHPReactRESTful APIsDebugging
Requirements
- Strong professional experience building and maintaining production applications with PHP and Laravel.
- Practical React experience and the ability to deliver full-stack product features.
- Experience operating queues, workers, asynchronous jobs, or event-driven systems in production.
- Understanding of concurrency, retries, idempotency, duplicate execution, backpressure, and rate limiting.
- Experience building and maintaining APIs and third-party integrations.
- Strong production-debugging skills.
- Experience with meaningful production volume or technically demanding backend workloads.
- Ability to verify application data accuracy.
- Strong ownership and independent judgment.
- Regular use of AI development tools with ability to validate generated code.
- Professional English communication.
Responsibilities
- Build and maintain production applications using Laravel, PHP, React, and Inertia.
- Investigate production issues through logs, metrics, request flows, and queue behavior.
- Design reliable queues, workers, and webhook-delivery systems.
- Build and maintain integrations with external and sometimes undocumented APIs.
- Reverse engineer web or API behavior related to authentication, cookies, and rate limits.
- Improve database queries, worker capacity, and backend performance using measurable evidence.
- Build customer-facing dashboards and internal tools.
- Add automated tests for critical failure scenarios.
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