Backend Developer – PHP

Airalo

Mid-Level Backend Engineer developing backend solutions for Airalo's eSIM platform. Involves coding in PHP, collaborating with global teams, and optimizing performance.

Posted 7/3/2026full-timeRemote • 🇪🇸 SpainMid-LevelSenior💰 £74,800 - £107,500 per yearWebsite

Tech Stack

Tools & technologies

DockerLaravelPHPSQLSymfony

About the role

Key responsibilities & impact

Develop and maintain robust backend services capable of handling high-volume global traffic.
Implement functional APIs and optimize query performance to ensure a seamless user experience.
Contribute to our modular architecture, helping us build resilient, service-oriented systems.
Write clean, maintainable code by applying SOLID principles, OOP best practices, and design patterns.
Master the art of debugging, identifying and resolving issues across our stack with precision.
Integrate asynchronous processes using queues and basic event-driven patterns to improve system efficiency.
Collaborate closely with Senior Engineers and Product teams to turn requirements into high-quality technical solutions.

Requirements

What you’ll need

3-5 years of professional backend development experience with a solid command of PHP.
Proven experience building applications in Laravel or a strong background in Symfony with a desire to transition.
Strong understanding of OOP, interfaces, and code modularity; you know why "clean code" matters.
Solid knowledge of SQL, including database indexing, migrations, and basic query optimization.
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.
Familiarity with modern infrastructure, including Docker and basic CI/CD pipeline troubleshooting.
Experience with testing, specifically writing unit and feature tests to ensure code reliability.
Fluent English with the ability to communicate technical progress and seek support effectively within a remote team.

Benefits

Comp & perks

Paid Rotation: We offer standby fees + overtime pay.
Delayed Start: No on-call duties for your first 6 months.
Rest & Recovery: Guaranteed rest periods and flexible hours following night incidents.
Shared Load: Rotations are split (Weekdays vs. Weekends) to minimize fatigue.
Learn more about our benefits here in this link - https://airalo-public.notion.site/Benefits-25396a97ffca81fb9bc1f0be479f1be3?pvs=74

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Hard Skills & Tools

Backend DevelopmentAPI ImplementationDatabase IndexingCode ModularityUnit TestingFeature TestingDebuggingAsynchronous ProcessesSOLID PrinciplesDesign Patterns

Soft Skills

Effective CommunicationCollaborationProblem-Solving