Hire Senior Frontend & Full-Stack Developer - Get Results FAST, QUALITY, DIRECT

Without unnecessary managers and overpayments

Frontend & Full-Stack Engineer with 12+ years of experience. Delivering exceptional digital solutions that drive business growth. View my successful projects and client reviews.

FAST Development

Multifunctional Expert: Principal full-stack developer, product owner, project manager, fractional CTO, and product designer since 2013. Results 2-3x faster than standard agencies.

Cost SAVINGS

Cost-Effective & Fast Solution: You get a jack of all trades instead of hiring and spending unnecessary money and time on management and bureaucracy.

DIRECT Communication

Direct communication with executor, no intermediaries. Direct communication with the executor equals fast solutions and quality results.

STARTUP Experience

I've been working for 12 years with startups from Canada, USA, Europe, and Asia. Projects have raised $58M+ in investments. I launch MVPs/startups in record time with flexible, fast communication and rapid iterations.

Industries We Serve

We've built applications across various industries, helping businesses digitize their operations and create innovative solutions for their customers.

Key Success Metrics

Specific numbers that show the quality and effectiveness of my work

200+

Completed Projects

From landing pages to complex SaaS platforms.

12 Years

Since 2013

Professional development experience.

4,000+

Hours on Upwork

Professional experience.

Top 0.5%

Upwork Rating

Among the best developers.

100%

Deadline Compliance

All projects are delivered on time.

$58M+

Investments Raised

By clients thanks to projects.

Ready to Create Results for Your Project?

Let's discuss how I can help you achieve your business goals and create exceptional digital solutions. Check out my case studies and client reviews.

Fast Delivery

Quick turnaround times without compromising quality

Results Focused

Every project delivers measurable business value

Client Success

Your success is my priority - proven track record

Innovation

Cutting-edge technologies and modern solutions

Why Choose Me

Comprehensive approach to development that ensures quality, speed and results - 12+ years experience, 200+ projects, top 0.5% Upwork ranking

Guaranteed Quality

All code undergoes thorough testing and meets modern development standards.

Deadline Compliance

Always complete projects on time, even if it requires additional effort. 100% compliance with timeframes.

User-Focused

Create solutions that solve real user problems and achieve client business goals.

Security and Reliability

Implement modern security practices at all development levels to create secure applications.

High Performance

Optimize every aspect to achieve maximum speed and efficiency of applications.

Cross-Platform

Create solutions that work on all devices and platforms without loss of quality.

Transparent Communication

Regularly report on progress, demonstrate functionality and always available for project discussion.

Continuous Development

Follow the latest technologies, study new tools and improve skills for better results.

Trusted By

Leading companies trust us to deliver exceptional results and innovative solutions

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Ready to Create Results for Your Project?

Let's discuss how I can help you achieve your business goals and create exceptional digital solutions. Check out my case studies and client reviews.

Fast Delivery

Quick turnaround times without compromising quality

Results Focused

Every project delivers measurable business value

Client Success

Your success is my priority - proven track record

Innovation

Cutting-edge technologies and modern solutions

How We Will Work

Transparent and efficient development process that guarantees results

Consultation

Free consultation to understand your needs and project goals

Approval

Budget approval, timelines, technologies and other project details

Setup

Project base configuration - technology installation, dependencies, project foundation setup, ensuring everything works, deployment

Development

Product creation and full development according to technical specification

Testing

Comprehensive testing and fixing of identified issues

Launch

Project deployment and technical support

Technology Stack

Complete set of modern technologies for implementing any projects - React, Next.js, JavaScript, TypeScript, Node.js and more

Frontend

Modern technologies for creating user interfaces

React
React Native
Angular
Vue
Next.js
Nuxt.js
Remix
Astro
Gatsby
Svelte
TypeScript
JavaScript
Redux
Zustand
Mobx
Recoil
Context API
React Query
HTML5
CSS3
SASS/SCSS
PostCSS
WebSocket
Socket.io
WebRTC
SSG
SSR
ESLint
Husky
Zod
Yup
react-hook-form
Formik
Monorepo
pnpm

Backend

Server technologies for creating APIs and business logic

Node.js
Nest.js
Fastify
AWS
Google Cloud
Azure
Supabase
MongoDB
PostgreSQL
TypeORM
Prisma
RabbitMQ

API

API development and integration

REST
GraphQL
Apollo
Express
Axios
Stripe
Hubspot
Cloud APIs

UI Libraries & Design Systems

Design systems and UI frameworks

Tailwind CSS
ShadCN
Radix UI
Material UI (MUI, MUI X)
Magic UI
Bootstrap
Ant Design
Chakra UI
Mantine
Storybook
Design Systems
Figma in Code
Code in Figma

Mobile & Cross-Platform

Mobile development technologies

NativeBase
React Native Paper
React Native Elements
Ionic
Electron
GlueStack

Build Tools & Deployment

Build tools and deployment platforms

Vite
Webpack
Gulp
Rollup
Turbopack
Vercel
Netlify
Heroku

Headless CMS

Content management systems

Strapi
Contentful
Sanity
Storyblok
GraphCMS
Netlify CMS

AI & Automation

Artificial intelligence and automation tools

OpenAI
ChatGPT
Replit
Cursor AI
Lovable
Vercel v0
Figma to Code
make.com
n8n

What Clients Say About My Work

Featured testimonials from satisfied clients who have experienced exceptional results working with me on their web development projects

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Thentia Corporate Website

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Thentia Cloud v2

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Thentia Ascend Blog

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Thentia Cloud v1

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Thentia Cloud v0

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Developer to convert Zeplin designs in to Responsive CSS/HTML with SASS and Bootstrap 4.3.1

I'll tighten this further by removing some redundancies while keeping the core message:
It is my great pleasure to recommend Fedir Kopakov for any software engineering position, particularly those focused on frontend development. I've had the privilege of working with Fedir during extraordinary circumstances that highlighted not just his technical excellence, but his remarkable resilience and dedication to craft.
Fedir possesses that rare combination of skills that makes him a complete frontend engineer - he seamlessly bridges the gap between design sensibility and technical implementation. While many developers excel at either the visual or technical aspects of frontend work, Fedir demonstrates mastery across the full spectrum. His deep understanding of UI/UX principles isn't just theoretical; he consistently translates that knowledge into elegant, intuitive interfaces that delight users while maintaining clean, maintainable code.
What truly sets Fedir apart is his ability to deliver exceptional work under the most challenging circumstances imaginable. While his homeland of Ukraine was under attack, with bombs literally falling nearby, Fedir remained focused and continued to produce outstanding code. This level of dedication and mental fortitude speaks volumes about his character and work ethic.
Technically, Fedir is nothing short of a wizard with JavaScript. His command of modern frameworks and build tools is comprehensive, but more importantly, he possesses a deep understanding of core JavaScript principles that allows him to solve complex problems elegantly. His code isn't just functional - it's thoughtfully architected, well-documented, and built with maintenance and scalability in mind.
What particularly impresses me about Fedir's work is his attention to the finer details of frontend development. His CSS implementations are masterful, creating responsive, accessible interfaces that work flawlessly across devices and browsers. His HTML is semantic and accessibility-focused, showing his commitment to creating truly inclusive web applications. This holistic approach to frontend development - combining technical excellence with user-centered design principles - is increasingly valuable.
Beyond his technical capabilities, Fedir is an exceptional team member. His communication is clear and thoughtful, and he has a talent for explaining complex technical concepts in accessible terms. He actively contributes to code reviews, providing insightful feedback that helps elevate the entire team's work.
In conclusion, I give Fedir my highest recommendation. His unique combination of technical expertise, design sensibility, and unwavering work ethic - demonstrated under the most challenging circumstances - make him an extraordinary candidate. Any organization would be fortunate to have him on their team. His ability to deliver outstanding work while maintaining high standards, even in a crisis, speaks to both his professional capabilities and character.
Julian Cardarelli
Thentia
Canada

Frequently Asked Questions

Get answers to common questions about my web development services

Ready to Create Results for Your Project?

Let's discuss how I can help you achieve your business goals and create exceptional digital solutions. Check out my case studies and client reviews.

Fast Delivery

Quick turnaround times without compromising quality

Results Focused

Every project delivers measurable business value

Client Success

Your success is my priority - proven track record

Innovation

Cutting-edge technologies and modern solutions