PHP backend engineer in fintech

Coinspaid Solutions is a fintech company building blockchain payment infrastructure for the global economy. We design, implement, and scale payment systems that connect digital assets with real-world financial operations. Our solutions help businesses and financial institutions operate efficiently in the evolving digital asset landscape. For over 11 years, we’ve been developing products that bring crypto payments closer to mainstream adoption. Today, our team includes 350+ professionals working remotely across multiple countries.

• Collaborate with cross-functional and cross-domain teams to gather requirements, design solutions, and deliver features
• Design, develop, and maintain backend systems using PHP and MySQL(or similar), ensuring they are scalable and maintainable
• Implement and optimize complex features with a focus on clean, reusable, and efficient code
• Write unit tests to ensure the reliability and scalability of code
• Participate in code reviews, architecture discussions, and ensure adherence to best practices in software development
• Monitor and troubleshoot production systems, ensuring the highest levels of availability, performance, and security
• Share on-call duties with the team to ensure smooth operations of the systems in production
• Stay updated with new technologies and trends, and introduce them where appropriate to enhance system performance and maintainability

• Experience (5+ years) in object-oriented PHP and modern PHP tools
• Software design principles (SOLID, KISS, DRY) and layered architecture
• Applied DDD practices: bounded contexts, aggregates, domain events
• Good knowledge of the latest versions of Laravel framework
• Strong understanding of relational databases like MySQL/PostgreSQL including transaction management
• Experience in database query optimization, analysing deadlocks and db performance
• Message-driven services in production with Apache Kafka or a comparable broker
• Handling money in application code: exact arithmetic, explicit rounding rules, multi-currency precision, idempotent money-moving operations
• Security best practices
• Experience with monitoring tools (Prometheus, Grafana or similar)
• Working with Docker/Docker Compose/Kubernetes on a daily basis
• Good level of spoken and written English (B1+) and Russian
• Будет плюсом: Experience with Go; Fintech, payments, or crypto domain experience; High-load

• You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact.
• At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so.
• We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.
• A flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.
• Fully remote work from almost anywhere
• Optional offices and relocation support
• Flexible, async-friendly environment
• Budget for courses, certifications, and professional development
• Language learning support
• Cross-team learning and knowledge sharing
• Medical insurance or reimbursement depending on location
• Access to mental health support
• Financial support for important life events
• Merch shop with rewards system
• Team offsites and company events