Senior PHP Engineer in London

to apply - email only, no card. You can also save this posting or score it againstyour profile with AI.## About the roleLead the design of high-performance distributed systems and drive the transition toward a service-oriented architecture. Coach mid-level engineers through code reviews and partner with cross-functional teams to translate requirements into scalable technical roadmaps.## RequirementsRequires 7+ years of professional backend development experience with deep mastery of PHP and 4+ years in Laravel or Symfony. Candidates must possess expertise in distributed systems, AWS, containerization, and the ability to communicate complex technical trade-offs in English.## BenefitsStandby feesOvertime payFlexible hoursRemote work## Full descriptionHelp Us Build The Future of TravelAt 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* Location: Remote, anywhere in the UK.* Contract: Full-time, permanent.* 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.* Life at Airalo · España: Life at Airalo · United Kingdom: Life at Airalo · United Arab Emirates: 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 roadmapsDoes 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 stakeholdersBonus:* 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\£91,600 - £135,000 a yearAt Airalo, we believe in roaming-free recruitment. Just as we provide clear connectivity for travelers, we provide clear salary ranges for our candidates. |Given this role is remote and available to candidates across some countries in Europe, this range represents the full salary range for this role across our available locations in the EU. To ensure equity based on where you reside we use a tiered location model:| UK: £91,600 to £135,000Your Home Destination: | Specific salary ranges used in offers are determined by where you reside. We're committed to discussing these ranges openly during your first call with our Talent to ensure we're aligned for takeoff! |\Please be aware that we can only consider candidates for this role who already reside and are fully eligible to work in the UK.If you are interested in this position, please apply via the link.Why People Join Us In the UKWe 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 first discovered us as customers.Our team spans 60+ countries, but what people often notice quickly is how work actually feels here. There's trust to own what you do, space to focus without constant layers of process, and a clear sense of what you're responsible for from day one.As Airalo continues to grow, people tend to stay for a mix of things: the chance to work on a product used globally, the autonomy to shape how they work, and the opportunity to keep taking on new challenges without getting stuck in one lane.On-CallParticipating 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.* 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.Please refer to the On-Call Policy in the Airalo Handbook for full details: You Hit ApplyWe sincerely thank all applicants in advance for submitting their interest in this opportunity. Airalo is an equal-opportunity employer and values diversity, equity & inclusion. We do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We are committed to providing reasonable accommodations upon request for individuals with disabilities throughout our job interview process.
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