PHP Engineer

• 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, For many of our teammates in Spain, it’s the combination of stability, flexibility, and genuine work-life balance that makes Airalo feel like home. On-Call Participating in our on-call rotation is a core expectation of this role. It’s essential for maintaining 24/7 service reliability across our global operations, ensuring our systems remain resilient and our customers experience uninterrupted service, regardless of time zone or geography.

• 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 Please be aware that we can only consider candidates for this role who already reside and are fully eligible to work in Spain. If you are interested in this position, please apply via the link.

• 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

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., We started Airalo to make staying connected effortless, wherever you are in the world. Today, millions of travelers rely on our eSIMs, and many of the people building the product were customers first. Our team is united by a shared belief that great work happens when people are trusted to own what they do. As Airalo continues to grow, so do the opportunities to learn, take on new challenges, and make a real impact.