Senior Backend Developer

Responsibilities

• Lead domain modeling discussions, define Bounded Contexts, and establish a Ubiquitous Language between technical and business domains.
• Maintain rigorous code review standards to enforce code quality, architectural consistency, and system security.
• Drive continuous performance tuning, database optimization, and refactoring of legacy components.
• Mentor and guide junior and mid-level developers, fostering continuous technical growth within the team.
• Partner with QA, DevOps, and Product leadership to ensure rapid, reliable deployment of critical backend services.

Requirements

• Advanced experience with MySQL / MariaDB optimization, query tuning, indexing strategies, and handling heavy transaction loads.
• Deep knowledge of Docker, container orchestration, and modern containerized deployment strategies.
• Proven track record of designing, building, and maintaining high-throughput, low-latency RESTful APIs.
• Solid experience with JavaScript / Node .js for microservices or real-time event processing.
• Mastery of OOP principles, SOLID guidelines, design patterns, and clean code principles.

Advantages

Experience with event-driven architectures and message brokers (RabbitMQ, Kafka). Expertise in caching layers (Redis, Memcached) and high-load database architecture (replication, sharding). Familiarity with web server administration and optimization (Nginx, Apache). Experience in the Online Gaming, FinTech, or high-frequency transactional domain.

Tech Stack & Tools: Primary Programming Languages: PHP (7.4+), JavaScript / Node.js (21+) Database Management: MySQL / MariaDB (10.4+) Containerization & Infrastructure: Docker Architecture & Protocols: REST APIs, JSON Version Control & Collaboration: Git / GitLab What we offer: Environment tailored to allow you to realize your full potential Challenging work in a dynamic international team Company funded training. Flexibility on working hours Multisport/Coolfit card; Additional health insurance.

We’re Red Tiger , a dynamic and self-contained team within the vast Evolution ecosystem, thriving with 200 talented professionals based in Sofia. Our expertise spans from product inception to final development, covering product, art, development, and more. Proudly 100% made in Bulgaria, we take immense pride in our achievements, adaptability, and the high quality of our games.