Overview
At Zeelo, we’re on a mission to revolutionize how frontline workers commute by delivering reliable, sustainable, and scalable transportation solutions. We partner with global leaders like Amazon, Barclays, and UPS, and we’re expanding after a successful Series B raise. If you’re passionate about building solutions, working in a scaling organization, and seeing the direct impact of your work—this is your seat on the bus.
About The Role
Senior PHP Developer to join our engineering team and contribute to the evolution of our core backend systems.
Responsibilities
* Design and develop backend services using PHP and Symfony
* Apply CQRS and DDD principles to model complex business domains
* Design and maintain asynchronous, message-driven components, ensuring reliability, consistency, and resilience in distributed systems
* Maintain and improve system performance and reliability
* Write high-quality, well-tested code, ensuring comprehensive test coverage through unit, integration, and end-to-end tests to support system reliability and long-term maintainability
* Contribute to architectural discussions and technical decision-making
* Collaborate with cross-functional teams to deliver end-to-end solutions
* Participate in code reviews and promote best engineering practices
Required Skills And Experience
* Strong professional experience with PHP, ideally using Symfony
* Hands-on experience working with CQRS architectures
* Solid understanding and practical application of Domain-Driven Design (DDD)
* Experience designing and leading full testing suites (Unit, Integration, and E2E) to support highly reliable, 24/7 production systems
* Experience with MySQL
* Experience using Redis or similar caching/message systems
* Proven experience working with message brokers and asynchronous systems (e.g. RabbitMQ, Redis Pub/Sub, Amazon SQS/SNS), with a solid understanding of the challenges of distributed communication, including race conditions, message ordering, delivery guarantees, and durability
* Proven experience working with Docker in development and production environments, including building, running, and troubleshooting containerized applications
* Ability to communicate clearly and effectively in English (spoken and written)
Why Zeelo
* Mission-driven work: Every commute we power helps reduce CO₂ emissions and makes work more accessible especially in areas with limited public transport
* Global exposure: Be part of a 120+ person team across the US, UK, and Spain
* Best-in-class tech: Our platform is redefining how organizations move their people
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