Web Development.
Full Cycle.
Result-Oriented.

From design to production-ready code.

I build websites that work. Clean code, modern design, and a focus on what matters most - delivering real results for your business.

Let's talk about your project
Serge - Web Developer
About

Hello, I'm Sergii Zhychkin

I'm a web developer and company owner. My company is officially based in Vilnius, Lithuania, with a physical office in Kharkiv, Ukraine. Over the years, I've helped businesses of all sizes build their online presence and bring their ideas to life online.

I personally handle critical parts of complex projects and oversee development quality. For larger projects, I work together with my professional team of designers and developers.

My approach is simple: deliver results that matter. No unnecessary complexity, no feature bloat - just clean, efficient solutions that help your business grow.

325+ Projects Delivered
15+ Years Experience
100% Client Satisfaction
Services

What I Do

Comprehensive web development services tailored to your specific needs.

UI/UX Design

User-centered design in Figma. Creating intuitive interfaces that look great and convert visitors into customers.

Frontend Development

Pixel-perfect implementation with HTML, CSS, JavaScript, jQuery, and React. Fast, responsive, and accessible.

Backend Development

Robust server-side solutions with PHP. Secure, scalable, and built to handle your business logic.

Landing Pages

High-converting landing pages designed to capture leads and drive results for your campaigns.

Corporate Websites

Professional corporate websites that establish credibility and communicate your brand effectively.

Team-Based Delivery

For complex projects, I work with a professional team of designers and developers to deliver at scale.

Technology

Full Tech Stack

Modern tools and technologies to build reliable, performant websites.

Design

  • Figma Design Systems, Prototyping
  • UI/UX Design Web & Mobile Interfaces
  • Web Design Landing Pages, SaaS
  • UX Audit Usability, Conversion

Frontend

  • HTML5 Semantic Markup
  • CSS3 Modern Styling
  • JavaScript ES6+
  • jQuery DOM Manipulation
  • React Component Architecture

Backend

  • PHP Server-side Logic
  • Laravel Modern PHP Framework
  • WordPress Custom Themes & Plugins
  • REST API Backend Integrations

Other

  • Performance Speed Optimization
  • SEO On-page Optimization
  • Accessibility WCAG Best Practices
  • Best Practices Clean & Maintainable Code
Process

How I Work

A structured approach that ensures predictable results and clear communication at every step.

01

Getting Started

We kick things off by listening to your ideas and understanding your goals, so everything starts on the right track.

02

Design & Mockups

Creating clean, modern designs in Figma that are easy to use and look great for your brand.

03

Development

Turning designs into a working website with clean, reliable code that runs smoothly on all devices.

04

Collaboration & Testing

My team and I work together to polish every detail, test on all devices, fix issues, and make sure everything works perfectly.

05

Launch & Growth

Your site goes live and we stay involved to support it, improve it, and help it grow with new features over time.

Responsibility
Clear Communication
Predictable Results
Portfolio

Selected Work

A selection of projects I've designed and developed for clients worldwide.

Futuristica - Digital Marketing Agency Website

Futuristica

Full-service digital marketing agency official website.

UI / UX HTML CSS
Many Tools - Web Tools Listing Platform

Many Tools

Web tools and tech stacks listing platform.

UI / UX HTML CSS
Travel Sites - Travel Listing Platform

Travel Sites

The world's best travel sites listing platform.

UI / UX HTML CSS WordPress
ProGamers - Professional Gaming Settings

ProGamers

A comprehensive collection of professional in-game settings.

UI / UX HTML CSS Laravel
More Cases
FAQ

Common Questions

Answers to the questions I get asked the most about my services.

It depends on the project. A simple landing page can take 1-2 weeks, while bigger websites usually take 4-8 weeks. I’ll give you a clear timeline once I understand what you need.

Absolutely! I work with clients all over the world. We communicate by email, video calls, or project tools, and I make sure time zones are never a problem.

Yes! I can refresh the look, improve usability, or rebuild it completely with modern tech to make it work better for your business.

For small projects, I work directly with you to keep things simple. For bigger projects, I involve my trusted team of designers and developers. Either way, I’m personally involved to make sure everything is done right.

I use Figma for design, HTML, CSS, JavaScript, jQuery, and React for the frontend, and PHP for the backend. I always pick the right tools for each project to make sure your site is fast, clean, and easy to maintain.

Yes! I can add new features, improve performance, or tweak the design as your business grows. I stay involved even after launch to keep your site up-to-date and working great.

Absolutely. I help you choose the best approach, technology, and design for your goals, making sure your website not only looks good but actually works for your business.

Contact

Let's Start Your Project

Ready to bring your ideas to life? Get in touch and let's discuss how I can help your business succeed online.

serge@gocows.com LinkedIn Profile

Ready to get started?

Send me a message and I'll get back to you within 24 hours.

Start your project