Senior PHP developer (Symphony)

We are seeking a Senior Software Engineer to join our Fintech project as a contractor. This role is suited for an experienced developer with a strong background in building and maintaining large-scale, high-performance web applications. You will work on complex systems and take ownership of critical parts of the codebase 

Responsibilities

• Develop, test, and maintain backend services and APIs using PHP and Symfony.
• Design, implement, and optimize complex relational database structures in MySQL 8.0 with a focus on performance and scalability.
• Work with MongoDB for unstructured or semi-structured data storage and processing.
• Build and optimize asynchronous workflows using RabbitMQ.
• Deploy, configure, and maintain applications on AWS (EC2, RDS, S3, etc.).
• Contribute to performance tuning, troubleshooting, and debugging of distributed systems.
• Collaborate closely with the Tech Lead and other engineers on technical design and implementation.
• Stay current with relevant technologies and propose improvements where appropriate.

Requirements

• Extensive experience with PHP and Symfony in production environments is must have
• Fintech, banking or payment processing experience 
• Ability to work with legacy code base 
• Strong expertise in MySQL 8.0, including query optimization, indexing strategies, and handling large datasets.
• Practical experience with message queues (RabbitMQ or similar).
• Hands-on knowledge of AWS infrastructure and services.
• Solid track record working on high-load systems or applications processing large volumes of data.
• Strong problem-solving skills and attention to detail.
• Ability to work independently while following established architecture and guidelines.

Nice to Have

• Experience with containerization and orchestration (Docker, Kubernetes).
• Previous exposure to DevOps practices.
• Familiarity with frontend stacks (React, Vue.js, or similar).