Senior Backend Engineer (PHP) – Blockchain/Fintech

About the position

About the Client Our client is a global fintech company at the forefront of crypto and Web3 payments adoption. Headquartered in Europe with international hubs, the company operates fully remotely with team members across 30+ countries. Recognized multiple times for its innovation, the company is committed to delivering secure, scalable, and regulation-ready crypto payment solutions for businesses worldwide. The culture is remote-first, collaborative, and growth-oriented, with a strong passion for the blockchain industry. About the Role As a Senior PHP Backend Engineer, you will design, build, and maintain backend systems for high-load fintech products. You’ll work closely with cross-functional teams, implement complex features, and ensure systems remain scalable, secure, and high-performing. This role is a chance to shape the core backend of innovative crypto payment solutions while being part of a truly international engineering team. Responsibilities Collaborate with cross-functional teams to gather requirements, design solutions, and deliver features. Design, develop, and maintain backend systems using PHP and MySQL (or similar). Implement and optimize complex features with a focus on clean, reusable, and efficient code. Write unit tests to ensure reliability and scalability of solutions. Participate in code reviews and architecture discussions, ensuring adherence to best practices. Monitor and troubleshoot production systems to maintain high availability, performance, and security. Share on-call duties with the team to ensure smooth production operations. Stay updated with new technologies and introduce improvements where beneficial. Requirements 5+ years of experience in object-oriented PHP and modern PHP practices (SOLID, KISS, etc.). Strong knowledge of Laravel framework (latest versions). Solid understanding of relational databases (MySQL/PostgreSQL), including transaction management. Experience with database query optimization, analyzing deadlocks, and improving DB performance. Hands-on experience with message-driven services (Apache Kafka or similar). Familiarity with monitoring tools (Prometheus, Grafana, or similar). Strong knowledge of security best practices. Experience working with Docker/Docker Compose. Understanding of Agile values and principles. Good spoken and written English (B1+) and Russian. Nice to Have Experience in the crypto industry. Participation in technical interviews. What’s in it for you? Be part of a fast-scaling fintech company recognized as a leader in crypto payments. Join a remote-first international team spread across 30+ countries. Work on high-impact blockchain and Web3 products shaping the future of digital assets. Competitive compensation and performance-based bonuses. Flexible remote work setup and opportunities for professional growth. 👉 Apply in 2 minutes and join a leading European fintech company driving innovation in crypto payments!

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