Senior Full-Stack Engineer

New

G2i Inc.API/Developer Tools

Remote within EuropeFull-TimeSenior

SalaryUp to $60 USD/hour

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Job Details

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.
Good understanding of concurrency, retries, idempotency, duplicate execution, backpressure, and rate limiting.
Experience building and maintaining APIs and third-party integrations.
Strong production-debugging skills, including the ability to explain how you identified and verified the cause of an incident.
Experience with meaningful production volume or technically demanding backend workloads.
Strong ownership, independent judgment, and comfort working without every requirement being defined upfront.
Regular use of AI development tools, combined with the ability to validate generated code and explain what you ship.
Professional English communication.

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.
Handle retries, duplicate execution, rate limits, backpressure, worker failures, and slow upstream services.
Build and maintain integrations with external and sometimes undocumented APIs.
Reverse engineer web or API behavior related to authentication, cookies, headers, and rate limits.
Create consistent API behavior across multiple creator and social platforms.
Improve database queries, worker capacity, job scheduling, and backend performance.
Build customer-facing dashboards and internal tools with accurate data.
Add automated tests for critical failure scenarios.

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