Senior Backend Developer

As a Senior Backend Developer in our Backend team you will be a core technical contributor responsible for driving the architecture scalability and domain modeling of our high-concurrency Online Gaming & Betting Platform. Working alongside our Backend Architect and Engineering Lead you will shape the future of our high-throughput platform which processes real-time betting operations and high-volume financial transactions globally.

In this role you will apply Domain-Driven Design (DDD) principles to model complex business domains into clean maintainable and decoupled microservices. You will lead technical design sessions mentor junior and mid-level engineers conduct rigorous code reviews and drive performance optimizations across our RESTful API services databases and Docker-based environments.

Mission & Responsibilities

• Architect design and write high-performance fault-tolerant PHP code utilizing Domain-Driven Design (DDD) and SOLID principles.
• 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.

Qualifications :

• Extensive hands-on experience in advanced PHP software development (PHP 7.4 PHP 8.x).
• Practical experience applying Domain-Driven Design (DDD) concepts (e.g. Aggregates Entities Value Objects Domain Events Repositories Bounded Contexts).
• Strong expertise in core PHP and custom architecture patterns without over-reliance on framework abstractions.
• 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.
• Experience with automated testing TDD/BDD practices (Codeception PHPUnit).

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.

Additional Information :

Tech Stack & Tools:

• Primary Programming Languages: PHP (7.4) JavaScript / (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.

Remote Work :

No

Employment Type :

Full-time