Senior PHP Software Engineer (Payments)

🎯 Role Overview

We’re growing the payment microservice of a fintech/iGaming platform, built on Laravel 10 / PHP 8.1, handling deposits, withdrawals, and currency management.
The service integrates with 70+ payment providers and runs in a multi-brand, multi-currency, high-load environment.
It’s part of a distributed platform of independent microservices communicating through dedicated SDKs.
We’re looking for a backend developer to strengthen the team: onboarding new providers, evolving the core payment-processing engine, and maintaining the reliability of a business-critical service where mistakes cost real money.

👤 Our Criteria

• 5 + years of commercial PHP experience, confident with **PHP 8.1+ **;
• Strong Laravel knowledge (Eloquent, queues, events/listeners, service container, facades, middleware);
• Solid MySQL: schema design, query optimization, indexing, partitioning, master/slave (read/write) splitting;
• Designing and integrating REST APIs, working with third-party HTTP APIs (Guzzle), handling callbacks and webhooks;
• Understanding of precise monetary arithmetic (bcmath; no floats in financial calculations);
• Experience with message queues (RabbitMQ / AMQP) for asynchronous processing;
• Docker and working in a containerized environment;
• Git, teamwork with feature branches and code review;
• Familiarity with design patterns (Strategy, Factory, Facade) and SOLID principles;
• English sufficient to read technical documentation.

⚙️ Your Tasks

• Onboarding and maintaining payment provider integrations (billing-class pattern + aggregator layer);
• Developing and supporting deposit, withdrawal, and currency-management functionality;
• Evolving the core payment-processing engine and multi-brand payment-system configuration;
• Designing database schemas and optimizing query performance;
• Writing clean, testable code with unit and feature test coverage (PHPUnit / Laravel Test);
• Following code style (Laravel Pint) and passing static analysis (PHPStan);
• Participating in code reviews, diagnosing and resolving production incidents;
• Collaborating with adjacent services through SDKs (bank, users, bonus, notifications).

⭐ Nice to Have

• Experience in fintech / payment systems / iGaming, familiarity with payment flows and reconciliation;
• Experience integrating crypto payments;
• Experience with multi-tenant / multi-brand architectures;
• Static analysis (PHPStan) and a strong automated-testing culture;
• Experience with distributed systems and event-driven architecture;
• Awareness of security and compliance requirements in payments.

💼 Our Offer

• Flexible work setup - work remotely or from the office, we focus on results, not location;
• Support for a comfortable work environment - we compensate coworking expenses and EcoFlow power stations to help our team stay productive during power outages in Ukraine;
• Unlimited vacation and sick leave, because we trust our people to manage their time responsibly;
• Relocation support for team members who want to move;
• Regular performance-based bonuses that reward individual and team impact;
• Learning support - we cover 50% of professional courses and development programs;
• Language & wellbeing support - we cover 50% of English classes and psychological consultations;
• Career growth opportunities - we prioritize internal promotions and development;
• Team culture that actually feels like one - regular gifts, company merch, and team events throughout the year;
• Real impact - we are small enough for every voice to be heard and big enough to turn great ideas into action quickly.