Senior PHP Backend Engineer

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. We combine the pace of fintech with a long-term approach to building products, teams, and careers. As a remote-first company, we give people flexibility in how they work while maintaining strong collaboration and shared ownership across teams. 🏆 In 2026, Coinspaid was recognized as Best Corporate Culture in the Blockchain Industry in Europe, reflecting our focus on ownership, trust, and collaboration. Responsibilities: 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 Requirements: Experience (5+ years) in object-oriented PHP and modern PHP tools and practices: SOLID, KISS, etc. 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 Experience in designing, implementing, and maintaining message-driven services using Apache Kafka (or other message broker) Experience with monitoring tools (Prometheus, Grafana or similar) Experience with security best practices Working with Docker/Docker Compose on a daily basis You understand Agile values and principles Good level of spoken and written English (B1+) and Russian Nice to have: Understanding crypto industry Experience with Go Why should you choose Coinspaid? 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. Flexible Benefits Benefit Bar – up to €230/month 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. Work & Flexibility Fully remote work from almost anywhere Optional offices and relocation support Flexible, async-friendly environment Growth & Learning Budget for courses, certifications, and professional development Language learning support Cross-team learning and knowledge sharing Wellbeing & Support Medical insurance or reimbursement depending on location Access to mental health support Financial support for important life events Extras Merch shop with rewards system Team offsites and company events Sounds good? Well then, we can’t wait to see your resume! To learn more please visit: https://coinspaid.com/about-us/ & https://coinspaid.com/careers/