Hi, I’m Eugene Barmin, building digital products that work beautifully and scale easily
About me
For over eight years, I’ve been helping companies and founders bring their ideas to life through clear, performant, and human-centered web experiences. My work bridges design and development — I care equally about how a product feels and how it functions.
I believe great software starts with empathy and structure. Understanding the goals, pain points, and context behind every project helps me create solutions that don’t just look good — they solve real problems, load fast, and grow with the business.
Whether it’s a startup platform, a B2B dashboard, or a custom automation, I bring the same precision, curiosity, and responsibility to each build.
Work Experiences
Work Experiences
Work Experiences
Where I’ve grown, designed and contributed
2022 – Present
Web / AI Developer
Freelance
Development and maintenance of web projects for startups, companies, and agencies across Europe, the USA and Asia. Main responsibilities: Full product lifecycle — from brief and planning to launch and post-release support. Designing user flows, prototypes, and interaction logic. Building client- and server-side functionality, configuring databases and integrations. Setting up analytics, tracking systems, and performance metrics. Communicating directly with clients: defining requirements, estimating timelines, and providing technical consultations. Leading small development teams, conducting code reviews, and ensuring delivery quality. Optimizing existing solutions: improving loading speed, reducing system load, and increasing conversion rates. Key results: Delivered 40+ projects of various complexity (from landing pages to user dashboards). Increased client conversion rates by 25–60% through redesign and performance improvements. Reduced average application response time by 35%. Implemented custom tools and process automations saving clients up to 30% of their manual workload costs. Built long-term partnerships with several international agencies.
2019 – 2022
Full Stack Developer
EPAM
Development of corporate web applications and internal tools for large international clients. Involved in the full product cycle — from architecture and testing to deployment and support. Main responsibilities: Designing frontend and backend architectures for high-load enterprise systems. Building client-side applications with a focus on rendering performance and stability Developing REST and GraphQL APIs and integrating with external services and APIs. Implementing automated testing, CI/CD pipelines, and monitoring systems. Working in agile teams (Scrum, Agile) in close collaboration with QA and UI/UX specialists. Mentoring junior developers and conducting regular code reviews. Key results: Improved interface loading speed by 40% through architectural optimization and caching. Reduced UI regression bugs by 25% after implementing automated visual testing. Created a modular component system that accelerated new feature development by 30%. Received an internal award for improving the product’s overall UX performance. Skills Frontend: JavaScript (ES6+), TypeScript, React, Next.js, Redux Toolkit, Zustand, REST, GraphQL Backend: Node.js, Express, NestJS, PostgreSQL, MongoDB, Redis, WebSocket Infrastructure: Docker, GitHub Actions, CI/CD, Vercel, AWS, Nginx Testing: Jest, React Testing Library, Playwright Tools: Git, Notion, Jira, Figma, VS Code Methods: Agile, Scrum, Code Review, Design Thinking
2017 – 2019
Web Designer
Chulakov Studio
Design and development of user interfaces and digital products for commercial and government clients. Worked as part of a multidisciplinary design and development team. Main responsibilities: Creating UX prototypes and high-fidelity visual designs. Designing scalable interface systems for web and mobile platforms. Supervising implementation to ensure design accuracy and usability. Conducting competitor analysis and usability audits. Key results: Delivered over 40 design projects, several recognized by industry awards. Improved user flows and conversion rates across multiple client products. Gained deep expertise in design-to-development collaboration — forming the foundation for a transition to engineering.
2022 – Present
Web / AI Developer
Freelance
Development and maintenance of web projects for startups, companies, and agencies across Europe, the USA and Asia. Main responsibilities: Full product lifecycle — from brief and planning to launch and post-release support. Designing user flows, prototypes, and interaction logic. Building client- and server-side functionality, configuring databases and integrations. Setting up analytics, tracking systems, and performance metrics. Communicating directly with clients: defining requirements, estimating timelines, and providing technical consultations. Leading small development teams, conducting code reviews, and ensuring delivery quality. Optimizing existing solutions: improving loading speed, reducing system load, and increasing conversion rates. Key results: Delivered 40+ projects of various complexity (from landing pages to user dashboards). Increased client conversion rates by 25–60% through redesign and performance improvements. Reduced average application response time by 35%. Implemented custom tools and process automations saving clients up to 30% of their manual workload costs. Built long-term partnerships with several international agencies.
2019 – 2022
Full Stack Developer
EPAM
Development of corporate web applications and internal tools for large international clients. Involved in the full product cycle — from architecture and testing to deployment and support. Main responsibilities: Designing frontend and backend architectures for high-load enterprise systems. Building client-side applications with a focus on rendering performance and stability Developing REST and GraphQL APIs and integrating with external services and APIs. Implementing automated testing, CI/CD pipelines, and monitoring systems. Working in agile teams (Scrum, Agile) in close collaboration with QA and UI/UX specialists. Mentoring junior developers and conducting regular code reviews. Key results: Improved interface loading speed by 40% through architectural optimization and caching. Reduced UI regression bugs by 25% after implementing automated visual testing. Created a modular component system that accelerated new feature development by 30%. Received an internal award for improving the product’s overall UX performance. Skills Frontend: JavaScript (ES6+), TypeScript, React, Next.js, Redux Toolkit, Zustand, REST, GraphQL Backend: Node.js, Express, NestJS, PostgreSQL, MongoDB, Redis, WebSocket Infrastructure: Docker, GitHub Actions, CI/CD, Vercel, AWS, Nginx Testing: Jest, React Testing Library, Playwright Tools: Git, Notion, Jira, Figma, VS Code Methods: Agile, Scrum, Code Review, Design Thinking
2017 – 2019
Web Designer
Chulakov Studio
Design and development of user interfaces and digital products for commercial and government clients. Worked as part of a multidisciplinary design and development team. Main responsibilities: Creating UX prototypes and high-fidelity visual designs. Designing scalable interface systems for web and mobile platforms. Supervising implementation to ensure design accuracy and usability. Conducting competitor analysis and usability audits. Key results: Delivered over 40 design projects, several recognized by industry awards. Improved user flows and conversion rates across multiple client products. Gained deep expertise in design-to-development collaboration — forming the foundation for a transition to engineering.
2022 – Present
Web / AI Developer
Freelance
Development and maintenance of web projects for startups, companies, and agencies across Europe, the USA and Asia. Main responsibilities: Full product lifecycle — from brief and planning to launch and post-release support. Designing user flows, prototypes, and interaction logic. Building client- and server-side functionality, configuring databases and integrations. Setting up analytics, tracking systems, and performance metrics. Communicating directly with clients: defining requirements, estimating timelines, and providing technical consultations. Leading small development teams, conducting code reviews, and ensuring delivery quality. Optimizing existing solutions: improving loading speed, reducing system load, and increasing conversion rates. Key results: Delivered 40+ projects of various complexity (from landing pages to user dashboards). Increased client conversion rates by 25–60% through redesign and performance improvements. Reduced average application response time by 35%. Implemented custom tools and process automations saving clients up to 30% of their manual workload costs. Built long-term partnerships with several international agencies.
2019 – 2022
Full Stack Developer
EPAM
Development of corporate web applications and internal tools for large international clients. Involved in the full product cycle — from architecture and testing to deployment and support. Main responsibilities: Designing frontend and backend architectures for high-load enterprise systems. Building client-side applications with a focus on rendering performance and stability Developing REST and GraphQL APIs and integrating with external services and APIs. Implementing automated testing, CI/CD pipelines, and monitoring systems. Working in agile teams (Scrum, Agile) in close collaboration with QA and UI/UX specialists. Mentoring junior developers and conducting regular code reviews. Key results: Improved interface loading speed by 40% through architectural optimization and caching. Reduced UI regression bugs by 25% after implementing automated visual testing. Created a modular component system that accelerated new feature development by 30%. Received an internal award for improving the product’s overall UX performance. Skills Frontend: JavaScript (ES6+), TypeScript, React, Next.js, Redux Toolkit, Zustand, REST, GraphQL Backend: Node.js, Express, NestJS, PostgreSQL, MongoDB, Redis, WebSocket Infrastructure: Docker, GitHub Actions, CI/CD, Vercel, AWS, Nginx Testing: Jest, React Testing Library, Playwright Tools: Git, Notion, Jira, Figma, VS Code Methods: Agile, Scrum, Code Review, Design Thinking
2017 – 2019
Web Designer
Chulakov Studio
Design and development of user interfaces and digital products for commercial and government clients. Worked as part of a multidisciplinary design and development team. Main responsibilities: Creating UX prototypes and high-fidelity visual designs. Designing scalable interface systems for web and mobile platforms. Supervising implementation to ensure design accuracy and usability. Conducting competitor analysis and usability audits. Key results: Delivered over 40 design projects, several recognized by industry awards. Improved user flows and conversion rates across multiple client products. Gained deep expertise in design-to-development collaboration — forming the foundation for a transition to engineering.