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Airalo

Posted 1 month ago

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Senior PHP Engineer

United KingdomRemoteFull-time

AI Summary

Lead the design and evolution of Airalo's global backend platform as a Senior Backend Engineer, focusing on high-performance distributed systems, service-oriented architecture, and scalability for millions of users.

About this role

Help Us Build The Future of Travel

At Airalo, we make it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access mobile data in over 200 countries and regions.

We’re a fully remote team of 400+ people across 60+ countries, building a product used at a global scale every day. Work here is structured but fast-moving, with clear ownership and the space to make decisions without unnecessary layers.

For many people joining us from the UK, it’s the combination that stands out: transparency, meaningful autonomy, and the ability to do high impact work without in office constraints.

Your Next Destination

Curious what it's actually like to work at Airalo? We've put together a guide for each of the hubs we hire from most, covering our benefits, remote culture, employment setup, and what our team values most:


Are you a seasoned engineer who thrives on solving complex architectural puzzles in PHP? Join our team as a Senior Backend Engineer where you will lead the evolution of our global platform with more then 30 million users. We value deep technical mastery, a mentor mindset, and the ability to balance rapid innovation with system stability. While we use Laravel, we highly value the architectural rigor of seasoned Symfony experts ready to pick up Laravel and apply their skills to our ecosystem.

Your main responsibilities will be to:

  • Lead the design of high-performance distributed systems capable of handling global traffic
  • Develop and refine services to improve scalability and efficiency
  • Drive the transition toward a service-oriented architecture (SOA) to ensure modularity and resilience
  • Set the bar for code quality by enforcing SOLID principles, design patterns, and testing standards
  • Actively coach mid-level engineers through deep code reviews and technical knowledge sharing
  • Identify bottlenecks in services and implement advanced caching and database strategies
  • Partner with Product and DevOps to translate complex requirements into scalable technical roadmaps

    • Does this sound like you:

  • 7+ years of professional backend development experience with a deep mastery of PHP
  • 4+ years of building enterprise-grade applications in Laravel or an equivalent senior background in Symfony
  • Mastery of distributed systems, event-driven architecture, and messaging patterns like SQS or Pub/Sub
  • AI Proficiency: Ability to effectively use AI tools during technical tasks; we value engineers who know how to prompt, validate, and iterate with AI to build better software faster.
  • Knowledge of SQL and NoSQL including performance tuning and handling transactions at scale
  • Experience architecting on AWS and managing containerized environments with Docker
  • A champion of clean code, automated testing, and CI/CD best practices
  • Fluent English with the ability to explain complex technical trade-offs to stakeholders

    • Bonus:

  • Experience with SaaS/PaaS, SOA, or microservices architecture.
  • Experience with eSIM, or GSMA technologies.
  • Familiarity with Traveltech solutions.
  • Experience in building or maintaining custom SDKs would be a plus

    • Skills

    Automated TestingAWSCaching StrategiesCI/CDDatabase Performance TuningDesign PatternsDockerEvent-driven ArchitectureLaravelMicroservicesNoSQLPHPPub/SubSDK DevelopmentSOLID PrinciplesSQLSQSSymfony

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