Backend Developer Consultant

Middle Backend Developer

Come and push your journey to the next level!

A Taste of What You’ll Do

The Middle Backend Developer is responsible for building and maintaining backend services that integrate third-party game providers into our platform. This role encompasses the entire technical lifecycle of an integration, from provider specification and implementation to ongoing production support. You will own the reliability of services handling game launches, bet and win transactions, and provider callbacks. This position is ideal for a developer comfortable working with external specifications and third-party systems beyond their direct control.

• Implement and maintain integrations with third-party game providers using PHP/Laravel, based on provider API specifications and integration documents.
• Manage game transaction flows — launch, bet, win, rollback, reconciliation.
• Design and optimize database schemas and queries.
• Investigate and resolve integration issues with providers, including direct technical liaison with their engineering contacts.
• Investigate and resolve production incidents affecting game availability or player transactions, participating in the on-call rota.
• Write and maintain automated tests, including coverage of provider edge cases and failure modes.
• Participate in code review, sprint planning, refinement, and retrospectives.
• Keep integration documentation current, including provider-specific behavior and known quirks.
• Apply secure development practices and ensure compliance with regulatory, licensing, and data protection requirements.
• Support and mentor junior developers within the team.
• Perform any other related tasks or responsibilities connected to your role as a Middle Backend Developer.

Who and What We Are After?

• Minimum of 3 years' commercial PHP development experience.
• Basic working knowledge of Python.
• Strong Laravel experience, including Eloquent, queues, service container, and Artisan tooling.
• Comfortable working in an older procedural PHP codebase alongside modern framework code, and migrating between the two.
• Practical experience integrating third-party REST APIs, including handling authentication, retries, timeouts, and inconsistent provider behavior.
• Proficient with relational databases: schema design, indexing, and query optimization.
• Understanding of transactional integrity, concurrency, and idempotency in financial or wallet-style operations.
• Experience with RabbitMQ or a comparable message broker — consumers, queue configuration, handling stuck or piling messages.
• Proficiency with Redis for caching and pub/sub.
• Experience with Git, branching workflows, and CI/CD pipelines.
• Automated testing with PHPUnit; familiarity with static analysis and style tooling (PHPStan, PHPMD, Laravel Pint).
• Docker, and basic familiarity with Kubernetes for local development.
• Ability to debug production issues across service boundaries and identify whether a fault is ours or the provider's.
• Clear written and spoken English, sufficient for direct correspondence with external provider teams.
• Able to work independently on assigned scope while escalating blockers early.
• Degree in Computer Science, Software Engineering or equivalent practical experience.

Meet all the eligible criteria? Apply today and join the Immense Group team.

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