Symfony Backend Developer to $4500

Description

We are looking for a Backend Developer with strong experience in Symfony and event-driven architectures.
You will work on building and improving provider integrations, asynchronous message flows, and transactional services within a distributed system.

Responsibilities

• Develop and maintain backend services built with Symfony and CQRS/Event Sourcing approach.
• Integrate with external providers through REST API.
• Implement asynchronous processing, retries, and idempotency logic for reliable data flows.
• Design and extend domain models and message-driven workflows.
• Collaborate with other developers and DevOps engineers to ensure scalability, observability, and system reliability.
• Write and maintain unit/integration tests and ensure high code quality.

Requirements

• 3+ years of experience with PHP (8.1+), including Symfony 6/7.
• Write unit and integration tests using PHPUnit, ensuring full coverage of business logic and message handling.
• Understanding of DDD, CQRS, and Event Sourcing.
• Proven experience integrating external systems or providers..
• Solid knowledge of PostgreSQL, Doctrine, and asynchronous processing.
• Experience with message brokers (RabbitMQ, SQS, or Kafka).
• Work locally using Docker for development, testing, and service orchestration.
• Ability to write clean, testable, and maintainable code.

Nice to Have

• Familiarity with JMS Serializer and custom converters.
• Experience with Ecotone, Prooph, or similar event-driven frameworks.
• Understanding of financial or transactional systems.