Vladimir Cravenco

• Decomposed a monolith into microservices, improving scalability and reducing system coupling.
• Implemented SAGA for distributed transactions, ensuring data consistency across services.
• Introduced multi-tenancy in some microservices and prepared the architecture for its implementation in others.
• Implemented event-driven communication between services using Kafka.
• Introduced a number of Stability patterns (Retry Pattern + Idempotency key, Exponential Backoff, Jitter, Timeouts Pattern, Rate Limiting) for inter-service HTTP communication.
• Set up git-hooks for local code quality checks (PHPStan, CS Fixer), and later integrated them into CI/CD.
• Created a package for automated validation of API response structure in tests against the OpenAPI specification (swagger.json/xml).

• Implemented a mechanism for running consumers in Laravel for SQS events, integrating AWS SQS into the existing background jobs infrastructure.
• Implemented the collection of a user insights feed based on complex baseline criteria and user preferences, ensuring a flexible architecture according to the rules described in Robert Martin's book, Clean Architecture.

Involved in developing software for automated warehouse management (WMS).

Technologies used: Microservices, PHP 8 + Lumen, JS/Node.js, PostgreSQL, Docker, GitLab CI, RabbitMQ, Swagger.

Worked on the development of a large-scale mail project, including the REST/RPC API for it, as well as developing several application stores using Yii2 .