Senior PHP developer — 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.