Senior PHP Engineer

About the Role

Join Airalo as a Senior PHP Engineer to lead the evolution of our global eSIM platform, impacting millions of travelers worldwide. This is an exciting opportunity to tackle complex architectural challenges and drive innovation in a high-scale, remote-first environment.

Responsibilities

• Lead the design and development of high-performance, distributed systems capable of handling global traffic.
• Enhance service scalability and efficiency through continuous development and refinement.
• Drive the transition towards a service-oriented architecture (SOA) for improved modularity and resilience.
• Uphold and enforce high code quality standards, including SOLID principles, design patterns, and comprehensive testing.
• Mentor mid-level engineers through detailed code reviews and knowledge sharing.
• Identify and resolve service bottlenecks using advanced caching and database strategies.
• Collaborate with Product and DevOps teams to translate complex requirements into scalable technical roadmaps.

Requirements

• 7+ years of professional backend development experience with a deep mastery of PHP.
• 4+ years of experience building enterprise-grade applications using Laravel, or a strong senior background in Symfony.
• Mastery of distributed systems, event-driven architecture, and messaging patterns (e.g., SQS, Pub/Sub).
• Proficient in SQL and NoSQL databases, including performance tuning and handling large-scale transactions.
• Experience architecting solutions on AWS and managing containerized environments with Docker.
• Demonstrated commitment to clean code, automated testing, and CI/CD best practices.
• Fluent English with the ability to clearly articulate complex technical trade-offs to stakeholders.

Nice-to-Haves

• Experience with SaaS/PaaS, SOA, or microservices architecture.
• Familiarity with eSIM technology or GSMA standards.
• Experience with Traveltech solutions.
• Proven experience in building or maintaining custom SDKs.