Senior back end developer (PHP)

Responsibilities

• Architect, design, and implement scalable, secure, and maintainable backend systems and microservices using modern PHP (PHP 8.x).

• Define backend architecture standards, database design, API design patterns, and overall system scalability.

• Optimize application performance, query execution times, memory usage, and caching strategies for high-traffic environments.

• Lead integrations with complex external services, message queues, and asynchronous task processors.

• Set up automated code quality checks, CI/CD integrations, and comprehensive automated test suites (PHPUnit, Pest, Behat).

• Conduct rigorous code reviews, enforce coding standards, and mentor team members.

• Collaborate directly with client stakeholders and software architects to translate business goals into efficient technical solutions.

Requirements

• 5+ years of commercial experience in backend development with deep expertise in PHP 8+ and its ecosystem.

• Mastery of modern PHP frameworks (Laravel, Symfony) and backend architecture principles (Clean Architecture, DDD, Event-Driven Architecture).

• Advanced knowledge of database design, complex SQL optimization, indexing strategies, and experience with NoSQL databases (MongoDB, Elasticsearch).

• Deep experience with asynchronous processing, message brokers (RabbitMQ, Kafka), and memory stores (Redis).

• Proven track record of designing scalable RESTful / GraphQL APIs and microservice architectures.

• Proficiency with Docker, CI/CD pipelines, and cloud services (AWS / Azure / GCP).

• Strong commitment to clean code, TDD/BDD practices, security best practices (OWASP), and design patterns.

• High autonomy, strong technical decision-making, and analytical skills in contract/project environments.

• English level: Upper-Intermediate / Advanced (fluent technical delivery and client interaction).