Denis Ivanchenko
Offer Denis work on your next project.
Private message 
Offer work 
Odessa,
Ukraine
8 hours 26 minutes back
responds within a couple of hours
available for hire
6 Safes completed
3 days 22 hours back
3 clients
40 proposals made
age 47 years
on the service 13 years
Rating
Language proficiency level
Українська: fluent
Русский: advanced
English: pre-intermediate
Deutsch: pre-intermediate
Skills and abilities
Programming
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Bot Development
from 10 USD for hour
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Content Management Systems
from 8 USD for hour
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Data Parsing
from 6 USD for hour
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Databases & SQL
from 10 USD for hour
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HTML & CSS
from 6 USD for hour
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Javascript and Typescript
from 6 USD for hour
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Python
from 10 USD for hour
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Web Programming
from 8 USD for hour
Services
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AI Consulting
from 10 USD for hour
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Enterprise Resource Planning (ERP)
from 10 USD for hour
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Online Stores & E-commerce
from 8 USD for hour
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Payment Systems Integration
from 10 USD for hour
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Website Maintenance
from 8 USD for hour
Portfolio
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156 USD BroPack — WordPress website for a packaging company
Website Development
Accepted a project with unfinished layout — delivered a fully ready website with PageSpeed 90+.
The project included 6 pages on a custom PHP theme without builders. Conducted a complete restructuring of the styles and scripts code, after which I brought the layout to exact compliance with the Figma mockup both on desktop and mobile.
… In addition to the layout:
- SEO for launching advertising campaigns (Yoast, Schema.org, sitemap)
- Forms with spam protection and lead submission via SendPulse
- Speed optimization to 90+ PageSpeed scores
Stack: WordPress · PHP · Figma · Yoast SEO · SendPulse · Cloudflare Turnstile
#WordPress #PHP #Figma #sendpulse #cloudflare
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Corporate "business card" website with modern design
Website Development
A modern corporate website in the form of a "business card" that aligns with corporate style and meets the expectations of the target audience.
Project description:
This is a modern corporate website in the form of a "business card" created for a distribution company. The client requested a stylish design with a dark theme and neon accents, mobile responsiveness, and fast loading to reflect the brand identity and provide a high-quality user experience across all devices.
…
What has been done:
From scratch, I created a fully responsive site using #HTML/CSS/JavaScript, #TailwindCSS, with interactive #javascript features for smooth scrolling and subtle animations.
I developed a modern user interface with a dark palette and neon accents, adhering to the client's branding wishes while ensuring readability and accessibility.
The code and resources were optimized for performance — minimal #CSS(.saas), optimized images, fast first load, and smooth rendering.
Tested on various devices and browsers to ensure consistent responsive layout and performance.
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RentKit – web service interface for real estate rental
HTML & CSS
Real estate rental service interface that can be used as a basis for a commercial product, startup, or corporate platform.
Project description:
A frontend interface for a web service for real estate rental has been developed. The project demonstrates the creation of UI for services in the real estate sector: object catalog, property cards, navigation, and user scenarios. The interface is designed with a focus on search convenience, visual clarity, and an understandable information structure. The architecture of the interface is prepared for further integration with the backend: connecting APIs, filters, personal accounts, and dynamic data.
…
What has been implemented:
Real estate rental service interface
Object catalog with cards
Service presentation and information pages
Thoughtful navigation and user scenarios
Responsive layout (desktop/tablet/mobile)
Clean and scalable frontend code structure
Preparation of the interface for backend integration.
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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Foodly – food delivery service web interface
HTML & CSS
Website for a food delivery service — a catalog of dishes with filters, a cart, reviews, FAQ. Suitable for a pizzeria, sushi bar, or any establishment with delivery.
Project description:
Developed the frontend of a food delivery web service focusing on user convenience and modern UI. The interface is ready for API integration, cart functionality, user authentication, and order processing.
…
What has been implemented:
- Main page of the food delivery service
- Catalog of dishes with product cards and category filters
- UI components for user interaction
- Thoughtful navigation and page structure
- Responsive layout (desktop / tablet / mobile)
- Prepared interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
Result:
A ready frontend interface for the food delivery service — can be used as the basis for a full-fledged product for a restaurant or delivery service.
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Finbox – the interface of a financial web service
HTML & CSS
Interface for a financial web service that can be used as a foundation for a full-fledged product in the field of finance or business analytics.
Project Description:
A frontend interface for a financial web service has been developed with an emphasis on clean design, ease of working with data, and a trustworthy visual style. The project demonstrates the creation of a UI for services where structure, readability, and neat presentation of information are important. The interface is implemented with consideration for future integration with the backend: the architecture of the pages and UI components are prepared for API connection, user authorization, and dynamic data.
…
What has been implemented:
Multi-page interface of the financial service
Dashboard structure and information blocks
UI components for displaying financial data
Thoughtful navigation and user scenarios
Responsive layout (desktop/tablet/mobile)
Clean and scalable structure of frontend code
Preparation of the interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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SaaS application for analyzing reviews and assessing purchase feasibility
Web Programming
Web application for analyzing customer reviews using AI — helps businesses quickly understand what customers think about a product and whether it is worth buying. Integration with OpenAI, support for CSV/JSON, user personal account.
Project description:
Developed a web application that helps both companies and individual buyers make informed purchasing decisions. The service collects reviews from various sources — online stores, forums, marketplaces — and uses AI analysis to form clear conclusions: whether to buy the product, its strengths and weaknesses. The application features a user personal account with authorization, the ability to upload files (CSV, JSON, TXT), as well as tools for data analysis and visualization. Integration with OpenAI API and generation of analytical recommendations is implemented.
…
What has been done:
Development of a responsive interface (HTML5, CSS3, Tailwind CSS)
Backend on FastAPI, PostgreSQL database
ORM level on SQLAlchemy
JWT authentication, registration, and user roles
Jinja2 templates and dynamic page generation
Working with CSV / JSON / TXT files
Data analysis and integration of OpenAI API (NLP)
Support for AI landing pages and multi-page structure
Result:
Created a SaaS solution that combines a user-friendly interface and powerful AI data analysis. The application helps companies save time on researching reviews and make accurate purchasing decisions, while individual users can quickly understand whether to buy a product.
Technologies used:
Frontend: HTML5, CSS3, Tailwind CSS, Jinja2
Backend: FastAPI, SQLAlchemy, PostgreSQL
AI and analytics: OpenAI API, NLP
Authentication: JWT
File handling: CSV / JSON / TXT
#web-programming #python #fastapi #TailwindCSS #AI #saas #api-development #Adaptive/Responsive #back-end/front-end
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TravelGo - web service interface for travel
HTML & CSS
Interface for a web service for travel, which can be used as a basis for a commercial product in the tourism, booking, or travel startup sector.
Project Description:
A frontend interface for a web service in the travel and tourism sector has been developed. The project demonstrates the creation of an interface for booking services, destination searches, and the presentation of travel offers. The interface is designed with a focus on visual appeal, convenient navigation, and clear user scenarios. The structure of the pages and UI components are prepared for further integration with the backend: API, dynamic data, bookings, and personal accounts.
…
What has been implemented:
Multi-page interface for the travel service
Main page with destination presentation
Tour/location cards
Navigation and user scenarios
Responsive layout (desktop/tablet/mobile)
Clean and scalable structure of frontend code
Preparation of the interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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Courseland — the interface of an online learning platform (EdTech)
HTML & CSS
Interface for an online platform for learning and courses. Ready for further integration with the backend: connecting APIs, personal accounts, authorization, and learning progress.
Project description:
Developed a frontend interface for an online platform for learning and courses.
… The project demonstrates the creation of UI for EdTech services: course catalogs, program pages, navigation, and user scenarios.
The interface is designed with a focus on ease of learning, content readability, and logical page structure.
The UI architecture is prepared for further integration with the backend: connecting APIs, personal accounts, authorization, and learning progress.
What has been implemented:
Online course platform interface
Catalog of educational programs
Course pages and learning descriptions
Navigation and user scenarios
Responsive layout (desktop / tablet / mobile)
Clean and scalable frontend code structure
Preparation of the interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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BlogForge — the interface of the platform for blogs and content sites
HTML & CSS
A website for a blog, media, or personal brand — with an article catalog, convenient navigation, and subscription for updates.
What has been implemented:
Blog platform / content site interface
… Article pages and publication lists
Navigation, content blocks, typography
Thoughtful user scenarios
Responsive layout (desktop / tablet / mobile)
Clean and scalable frontend code structure
Preparation of the interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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TaskFlow - interface of a SaaS application for task management
HTML & CSS
Interface for a task management SaaS application — dark theme, kanban board, forms, and navigation. Ready for backend integration for a real product or internal company tool.
Project description:
A web application interface has been developed for task and workflow management. The project demonstrates the design of a SaaS service structure, user scenarios, and the implementation of a multi-page interface. A user-friendly UI for task management has been implemented: navigation through sections, forms, lists, and controls. The interface is designed with future integration with the backend and scalability for real business tasks in mind.
…
What has been implemented:
Multi-page interface of the SaaS application #saas
Dashboard and task management pages
Data creation and editing forms
Thoughtful navigation and UX logic
Clean structure of HTML templates
Preparation of the interface for backend integration
Technologies used:
#prototyping
#HTML/CSS/JavaScript
#responsiveness
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Adaptive layout of the landing page
HTML & CSS
Landing page for an AI review analysis service — adaptive, fast, ready for launch. Google PageSpeed 90+.
What has been done:
- Semantic HTML5 markup
… - Styling with Tailwind 4 + custom CSS solutions
- Implementation of interactive elements in JavaScript (slider, menu, forms)
- Cross-browser and responsive layout (mobile-first)
- Loading optimization (Google PageSpeed 90+)
Technologies used:
#HTML5, #CSS3, #Tailwind 4, #JavaScript
The client received a ready-to-publish landing page, fully adaptive and user-friendly.
Reviews and compliments on completed projects 3
Quality
Professionalism
Cost
Contactability
Deadlines
Everything is excellent. Professionalism is at the highest level. Exactly on time, even earlier.
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27 April 2021
62 USD
Сделать HTML или WP лендинг
Quality
Professionalism
Cost
Contactability
Deadlines
Выполнил задание быстро и качественно. Рекомендую
19 May 2020
4 USD
The Bootstrap 4 Laboratory
Quality
Professionalism
Cost
Contactability
Deadlines
Thank you very much, Denis! The work was done even before the specified deadline, very quality.
The code is written with detailed comments, on my request.
He was always in contact, in TZ he studied the smallest details.
I definitely recommend!
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Website for a cleaning company (3 languages: PL/EN/UKR) – Ukrainian language required
200 USD
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Transfer of design to WordPress
45 USD
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Need to replace the image on the WordPress site
18 USD
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Development of a website for an online store.
601 USD
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Landing page for an English school
301 USD
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Development of a business card website
601 USD
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Створити сучасний преміальний лендинг для кейтерингової компанії.
445 USD
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Update of the one-page website for construction services
178 USD
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Adaptive website layout with animation
229 USD
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Refinement of the Front-end e-commerce site on Opencart
67 USD
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