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I'm a results-driven Senior Full Stack Engineer with over 10 years of experience, specializing in backend development while maintaining strong expertise across the full stack. I'm passionate about building scalable web applications and leading teams through complex migrations and performance optimizations. Outside work I enjoy cycling, basketball, and learning from stories of successful people.…

Kirill Kuprikov

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm a results-driven Senior Full Stack Engineer with over 10 years of experience, specializing in backend development while maintaining strong expertise across the full stack. I'm passionate about building scalable web applications and leading teams through complex migrations and performance optimizations. Outside work I enjoy cycling, basketball, and learning from stories of successful people.…

Available to hire

I’m a results-driven Senior Full Stack Engineer with over 10 years of experience, specializing in backend development while maintaining strong expertise across the full stack.

I’m passionate about building scalable web applications and leading teams through complex migrations and performance optimizations. Outside work I enjoy cycling, basketball, and learning from stories of successful people.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Russian

Fluent

English

Fluent

Work Experience

Senior Full Stack Engineer

September 1, 2023 - Present

Migrated 200GB of client data from legacy Apple FileMaker to PostgreSQL, ensuring data integrity and improved accessibility. Implemented authentication flows with OTPs and magic links, boosting security and onboarding. Developed appointment booking logic and integrated document exports. Leveraged AWS for deployment, CI/CD, and data backups.

Senior Ruby Developer / Project Tech Lead at Deluxe

January 31, 2022 - October 14, 2025

Led a team of developers through a major Rails upgrade; planned migration of components to Node.js services. Mentored developers on full-stack practices, including React state management and REST API integration.

Backend Engineer at G

November 1, 2020 - October 14, 2025

Built video and livestream watch statistics service with Ruby and ClickHouse. Developed backend APIs for your streamer.com, integrated Go-based WebSocket APIs for high-load scenarios. Contributed Python scripts for data analysis and monitoring. Worked with Kubernetes, Docker, PostgreSQL, and RSpec to ensure high reliability and scalability.

Full Stack Developer at Potok.io

February 1, 2019 - October 14, 2025

Delivered core features in a large HR automation platform, integrating Ruby services with React dashboards. Modernized legacy Rails systems and refactored backend services for performance. Built background sync daemons and stats APIs. Implemented Docker Swarm deployments and CI/CD pipelines.

Software Engineer at Progress LLC

July 1, 2018 - October 14, 2025

Developed a video hosting and livestreaming platform using Ruby/Rails with React-based management tools. Modernized legacy Rails systems and refactored backend services for performance. Built background daemons and stats APIs to support analytics. Implemented Docker Swarm deployments and CI/CD pipelines.

Senior Ruby Developer / Project Tech Lead at Deluxe

February 1, 2022 - October 14, 2025

Led backend and full-stack development for client projects; implemented event-driven integrations with external systems using Node.js services; introduced React-based monitoring dashboards for operational data; acted as tech lead, guiding backend design decisions and cross-team alignment.

Lead Full Stack Engineer at AP Moller Maersk

February 1, 2022 - Present

Led a team of developers through a major Rails upgrade, planned migration of components into Node.js and C# services. Modernized CI/CD pipeline by migrating to GitHub Actions, improving test execution time by 2.5x. Tuned complex SQL queries and designed caching strategies to improve backend performance. Mentored developers on full-stack practices, including React state management and REST API integration.

Full Stack Developer at Potok.io

November 1, 2020 - October 14, 2025

Delivered core features in a large HR automation platform, integrating Ruby services with React dashboards. Built complex business logic using service/query objects, Sidekiq workers, and decorators. Integrated recruiter-facing video interview functionality. Implemented advanced search and analytics with ElasticSearch and React-based reporting UI. Introduced Docker Swarm deployments and CI/CD pipelines for automated delivery.

Backend Engineer

November 1, 2020 - October 14, 2025

Built video and live stream watch statistics service with Ruby and ClickHouse. Developed backend APIs for youstreamer.com, integrating Go-based WebSocket APIs for high-load scenarios. Contributed Python scripts for data analysis and monitoring. Worked with Kubernetes, Docker, PostgreSQL, and RSpec to ensure high reliability and scalability.

Full Stack Developer at Soft LLC

July 1, 2018 - October 14, 2025

Developed a real estate credit platform from scratch with Ruby on Rails. Collaborated on backend business logic and APIs, while contributing C# utilities for data migration. Implemented background jobs with Sidekiq, tested with RSpec, and built Slim/Capybara-based views. Designed a maintainable architecture and enforced coding best practices within the team.

Full Stack Developer at Videoology LLC

February 1, 2019 - October 14, 2025

Developed a video hosting and live streaming platform using Ruby on Rails with React dashboards. Modernized legacy Rails systems and refactored backend services for performance. Built background jobs with Redis, introduced Docker-based deployments and CI/CD pipelines for automated delivery.