We’re currently looking for a Senior Backend Engineer with strong PHP expertise and solid https://jobeax.com/link/JSd7UYCSg572jJDY experience to join the Enterprise API & Platform API Team.

This is a hands-on engineering role focused on modernizing and scaling a large PHP-based backend. You’ll have the opportunity to work on the evolution of a monolithic architecture into more modular, service-oriented components while improving code quality, testing, performance, and reliability.

You’ll work in a remote-first, globally distributed team, collaborating closely with Product, Platform, and Engineering teams. Your technical decisions and architectural thinking will have a direct impact on how the platform evolves and scales.

What you’ll do

Develop a deep understanding of an existing PHP monolithic codebase and progressively extract functionality into modular, service-oriented components.
Design, build, and maintain scalable, testable, and reusable backend services using PHP and https://jobeax.com/link/JSd7UYCSg572jJDY .
Design and maintain robust RESTful and GraphQL APIs.
Lead and contribute to refactoring initiatives focused on performance, readability, maintainability, and scalability.
Build, deploy, and operate backend services on AWS , including Lambda and API Gateway .
Write and maintain unit and integration tests to ensure reliability across releases.
Use AI coding tools effectively while critically reviewing, validating, and improving AI-generated code.
Identify technical risks, performance bottlenecks, and opportunities for improvement across the platform.
Clearly communicate technical decisions and trade-offs through documentation and short video walkthroughs.
Collaborate effectively within a remote, async-first, cross-timezone environment.

What we’re looking for

5+ years of professional backend engineering experience.
Expert-level PHP experience , including work on enterprise-grade production systems.
Strong hands-on experience with https://jobeax.com/link/JSd7UYCSg572jJDY .
Experience refactoring or decomposing monolithic architectures into modular services.
Strong knowledge of backend architecture and API design, including REST and GraphQL .
Hands-on experience with AWS , particularly Lambda and serverless architectures.
Experience writing testable code and maintaining automated test suites.
Experience with AI-assisted development tools such as GitHub Copilot, ChatGPT, Claude Code, or Cursor, with the ability to critically review and refine generated code.
Strong written and spoken English.
A proactive, self-directed approach and the ability to work independently, communicate clearly, and unblock yourself in a remote environment.

What you’ll get

Great people — a talented, collaborative, and friendly international team.
Learning & development — access to training and learning resources to support your growth.
26 days of vacation plus floating and company holidays.
Wellness & work-life balance — wellness benefits and paid parental leave.
Comprehensive insurance package covering medical, life, and business travel.
PPK — participation in Poland’s Employee Capital Plan.
Equity — stock options as part of the company’s equity-sharing program.
Work-from-home stipend to help you create a comfortable home office.

Senior Node.js / PHP Engineer

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