About

Senior Backend Developer with strong expertise in building scalable and high-load systems. With over 15 years in IT, I have learned how to transform complex projects into fast, reliable, and maintainable solutions.

I apply SOLID principles, DDD, CQRS, Clean Architecture, and event-driven patterns. These practices help me design software that is flexible and testable. I develop microservices in PHP (Symfony, Slim, Doctrine) and Go (net/http, Gin, Echo, gRPC, sqlx, ent, GORM).

💡 I integrate RabbitMQ, Kafka, and NATS to build resilient and distributed systems. Infrastructure is managed with Docker, GitLab, and GitHub Actions, supported by CI/CD pipelines for reliable delivery. I pay strong attention to metrics and monitoring with Prometheus, Grafana, ELK, and Sentry, ensuring transparency and real-time visibility into system performance.

🚀 My experience includes designing and developing e-commerce platforms and fintech solutions, tools for development, monitoring, and testing, as well as enterprise-level B2B, B2C, and B2E products from scratch. I have successfully re-engineered heavy systems to achieve higher speed, lower resource usage, and greater business value.

🤖 Beyond backend development, I am passionate about integrating AI into real-world applications and exploring VR for monitoring visualization and developer tooling. I see these areas as the future of software development and actively experiment with them.

I am constantly improving my skills, learning new technologies, and adopting best practices. My goal is to always strive for better code quality, architecture, and results in my work.

Key skills

• Languages: PHP, Go, JavaScript
• Architecture: SOLID, DDD, CQRS, Event-Driven, Clean Architecture
• Frameworks: Symfony, Slim, Gin, Echo, gRPC
• ORM: Doctrine, sqlx, ent, GORM
• Message brokers: RabbitMQ, Kafka, NATS
• DevOps: Docker, GitLab, GitHub Actions, CI/CD
• Databases: PostgreSQL, MySQL, MongoDB, Redis
• Monitoring: Prometheus, Grafana, ELK, Sentry
• Domains: high-load systems, performance, e-commerce, fintech, Dev/Monitoring tools, enterprise solutions

Additional

• Location: Serbia (registered sole proprietorship for B2B contracts)
• Languages: Russian (native), English (B1)

Open to opportunities I am looking for Senior Backend Engineer roles in product and SaaS companies (e-commerce, fintech, DevTools, monitoring/observability).

Let’s connect If you have a role that matches my experience, connect on LinkedIn or email me at vitalii@vbcherepanov.com.