Senior PHP Engineer

Help Us Build The Future of Travel At Airalo, we're making it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access affordable mobile data in 200+ countries and regions around the world. Today, we're a team of 400+ people across 60+ countries, building a product used by travelers every day. We've grown quickly, but we've worked hard to keep what matters: trust, ownership, and the freedom for people to do great work without unnecessary layers or bureaucracy. We're fully remote by design, genuinely global, and united by a shared mission to make travel simpler for everyone. Your Next Destination Location: Remote, anywhere in Spain. Contract: Full-time, permanent contrato indefinido via Deel (our employer of record in Spain). Benefits: Learn more about our benefits here in this link - https://airalo-public.notion.site/Benefits-25396a97ffca81fb9bc1f0be479f1be3?pvs=74 Languages: English is our main working language day to day, so you'll need to be comfortable communicating in it both in meetings and async. 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: Life at Airalo · España: https://airalo-public.notion.site/life-at-airalo-espana Life at Airalo · United Kingdom: https://airalo-public.notion.site/life-at-airalo-united-kingdom Life at Airalo · United Arab Emirates: https://airalo-public.notion.site/life-at-airalo-united-arab-emirates

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 20 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.

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

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

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

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