Nykyta K.
Rating
Language proficiency level
CV
I am a full-stack developer with experience in creating high-quality web applications. I have a deep understanding of both frontend and backend technologies, which allows me to effectively work across all stages of project development. My experience includes:
Codebase Migration and Optimization: I have implemented migrations of outdated codebases to modern frameworks, such as Next.js, updating routes and introducing new development approaches.
Interface Development: I have created adaptive and cross-browser websites, including landing pages, educational platforms, and CRM systems, using React.js, CSS/SASS for styling, and ensuring responsiveness.
Code Typing and Stability: I utilized TypeScript to improve code typing, which helps reduce errors and increases code stability.
Performance Optimization: I have conducted optimizations of website load times, which positively impacted the overall user experience.
Technical Collaboration: I worked closely with designers and backend developers to integrate APIs and create functional applications.
I specialize in web application development based on a modern technology stack: Next.js (frontend), NestJS (backend), Drizzle and Prisma (ORM), PostgreSQL (database), TanStack Query (data management), and React API. My focus is on performance, optimization, and usability.
Skills and abilities
Programming
- Databases & SQL
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HTML & CSS
from 16 USD for hour
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Javascript and Typescript
from 16 USD for hour
- Testing & QA
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Web Programming
from 16 USD for hour
Design & art
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Interface Design (UI/UX)
from 16 USD for hour
- Web Design
Services
- Online Stores & E-commerce
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Website Development
from 16 USD for hour
Photo, Audio & Video
Promotion
Outsourcing & consulting
Translation
Portfolio
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1050 USD Website business card for a restaurant
Web ProgrammingWebsite design for a restaurant
design, layout and filling of the site.
Next.JS. Shadcn. Tailwind and others
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850 USD Website For Auto Wash Service
Web ProgrammingImplementation of a website for a car wash in Spain.
Implementation of design, layout and filling of the website.
Next.JS. Shadcn. Tailwind and others
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500 USD Brow Artist Website
Web ProgrammingDevelopment of a page for an eyelash extension master.
Implementation on Next JS + shdcn+tailwind+emailJs + strapi.
We performed design and development. Layout, integration of the Strapi payment system and EmailJs feedback. Multilingualism using i18n
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900 USD Website for car wash and detailing services.
Javascript and TypescriptWebsite for car wash and detailing services.
Website development for car wash and detailing services.
… Website design, layout, and content development.
Next.JS. Shadcn. Tailwind and others
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17 USD Website for a cleaning company
HTML & CSSWebsite for a cleaning company
Website development for a cleaning company.
… Design, layout, and content development for the site.
Next.JS. Shadcn. Tailwind and others
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750 USD Website for a cleaning company
Javascript and TypescriptWebsite development for a cleaning company.
Design, layout, and content development for the site.
… Next.JS. Shadcn. Tailwind and others
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250 USD Website
HTML & CSSIn this project, I implemented responsive web design with modern web standards in mind. The main objective was to create a website that renders correctly across different devices, from mobile phones to desktops. This involved creating responsive components, utilizing media queries to ensure proper content display on various screen sizes, and optimizing the site for fast performance.
Technologies Used:
… Next.js: The main framework used for the website, providing server-side rendering (SSR) and static site generation (SSG) capabilities.
React.js: Used to create interactive components that manage dynamic content on the pages.
TailwindCSS: Employed for efficient and flexible styling, enabling the creation of responsive interfaces without writing extensive custom CSS.
TypeScript: Used to enhance code safety and ensure proper type-checking throughout the project.
Lucide icons: Integrated for visually appealing icons that enhance the user interface.
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1000 USD Website for Digital Studio
HTML & CSSProject website of a digital marketing agency
Role Fullstack Developer
Year 2025
… Technology stack
Frontend Next.js 15 using App Router Server-Side Rendering Client-Side Rendering
React 19 with TypeScript
Tailwind CSS version 4 with additional support for SCSS and SASS
Component library Radix UI
Icons via Lucide React
Forms implemented using react-hook-form with validation through Zod
Graphs and charts implemented via react-chartjs-2
User interface using embla-carousel tw-animate-css sonner for notifications clsx for conditional classes and tailwind-merge
Implemented functionality
Homepage with sections Hero Services Testimonials Achievements FAQ Why Us Footer
Separate pages for each type of service SEO PPC Social Media Affiliate with separate content and images
Blog with a homepage that contains previews of each article with images title short description and separate article pages with full text
Page Write to Us with a large form multiple columns and field validation success message and clearing fields after submission
Separate pages Privacy Policy and Cookie Policy with full text output
Banner with consent to use cookies with an accept button or link to cookie policy
Added microdata schema org for improved indexing and visibility of the site in search engines
Full responsiveness of all pages sections and components for mobile tablet and desktop devices
Focus on performance readability clean layout and easy scalability in the future
The site is fully ready for deployment to production with all basic requirements for a modern web project
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465 USD Adaptive development
HTML & CSSImplemented responsive layout (mobile-first) for a multi-page web application using Next.js (v15.2.4), SCSS (with SASS modules), and modern frontend development practices.
Ensured full responsiveness across all screen sizes — from mobile devices to large desktop displays.
… Key responsibilities:
Built adaptive grid systems and UI components with UX/UI best practices in mind
Developed semantic and accessible HTML structure
Styled components using modular SCSS with clean code organization
Integrated components within the Next.js framework, applying SSR/ISR where appropriate
Optimized image delivery, fonts, and page performance
Ensured cross-browser compatibility
Technologies used:
Next.js
React.js
SCSS / SASS Modules
TypeScript
Mobile-first approach
Flexbox / CSS Grid / Media queries
Responsive images (Next Image)
BEM naming / CSS modules structure
Result: a fast, responsive, and visually appealing user interface across all devices.
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Website Layout using Next.js & Sass
Web ProgrammingI developed a responsive website using Next.js and Sass, ensuring smooth performance and modern styling. The project included:
Adaptive layout for mobile, tablet, and desktop
… Optimized CSS modules with Sass for better maintainability
SEO-friendly and fast-loading pages
Multi-language support (localization)
The website was successfully deployed, and the client received a fully functional, scalable solution tailored to their business needs.
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1500 USD Home Services - Website
Javascript and TypescriptImplementation using Next.js and Sass
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2000 USD https://okservice.com.pl/
Web ProgrammingCompleted project for an accounting company in Poland.
Next.js, Sass, Figma design, Contentful, i18n translation, SEO, Deploy web-site. Nginx, pm2 configuration. Connecting a form for sending orders to the mail.
Reviews and compliments on completed projects 4
7 August 2025
82 USD
Web Site Ok-Bud
As always, everything quickly, professionally, and at a high level. I recommend cooperation.
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1 August 2025
69 USD
Editing the page
Excellent job. All tasks were completed without waiting for a reservation. We were pleasantly surprised. Quickly and at a high level. We will contact you again and recommend working together.
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| Response review
6 May 2025
350 USD
Layout on NextJS and SCSS
I express gratitude to the performer for the work done. The task of layout of the sections was completed qualitatively and neatly. There were minor edits — everything was taken into account without unnecessary questions and with full dedication. Communication was comfortable, I am satisfied with the result. I recommend for cooperation!
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| Personal | Response review
6 April 2025
137 USD
Company Website Development
A wonderful professional. He completed the task even faster than requested. He created a wonderful page with animations. He responded to messages instantly. He understood the task and completed it immediately. Communication is excellent. He understands what he is doing. We continue to cooperate.
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Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Landing page
609 USD
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Creation of Landing Page
451 USD
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Creation of a landing page / business card website for a real estate brand
316 USD
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Website development (turnkey/staged)
609 USD
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We are looking for a Next.js developer (front-end part of the AI rental platform) - start ASAP
609 USD
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Improve the landing page on React
113 USD
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Need a frontend developer (React / Next.js)
113 USD
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Website layout 4 pages
113 USD
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Minimalist website + admin panel
5228 USD
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Transfer of the site from chatgpt to the domain and launch of the site
34 USD
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