Location: Remote, anywhere in Spain.
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
Published on: 9/8/2026

Airalo
The world's first and largest eSIM store, giving you access to affordable eSIMs for 200+ destinations.
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