Senior PHP Engineer

About the Role

Join Airalo as a Senior Backend Engineer to lead the evolution of our global eSIM platform, impacting millions of travelers worldwide. If you're passionate about solving complex architectural challenges in PHP and mentoring other engineers, this is your opportunity to build impactful, large-scale systems.

Responsibilities

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

Requirements

• 7+ years of professional backend development experience with deep mastery of PHP.
• 4+ years of experience building enterprise-grade applications in Laravel or a strong Symfony background.
• 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.
• Champion of clean code, automated testing, and CI/CD best practices.
• Fluent in English with the ability to articulate complex technical trade-offs.

Nice-to-Haves

• Experience with SaaS/PaaS, SOA, or microservices architecture.
• Familiarity with eSIM or GSMA technologies.
• Experience in the Traveltech industry.
• Experience building or maintaining custom SDKs.