Oleksandr Yeromin
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Odessa,
Ukraine
1 day 22 hours back
available for hire
14 proposals made
on the service 6 months 13 days
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Successful projects
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Skills and abilities
Programming
Design & art
Photo, Audio & Video
Outsourcing & consulting
Portfolio
- All works 10
- Search Engine Optimization (SEO) 2
- Interface Design (UI/UX) 1
- Online Stores & E-commerce 2
- Website Development 2
- Web Programming 1
- HTML & CSS 1
- Hybrid Mobile Apps 1
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1937 USD Development of an AI-based content automation SaaS service
Web ProgrammingAbout the project:
QuickPost AI is an automated tool (SaaS) for authors and businesses designed for intelligent rewriting (rephrasing) of content and its automatic cross-posting to social networks (YouTube, Instagram, X/Threads).
Task:
… Develop a stable backend infrastructure for processing publication queues, integrate AI functionality for text generation, and ensure seamless deployment of the platform.
What has been done:
Backend on clean code: The application architecture has been built based on modern cloud solutions without using bulky CMS. Supabase has been integrated for data management and authentication.
AI and API integration: The logic for interacting with the artificial intelligence API has been implemented to adapt and unique the same content for different social media formats.
Cloud deployment and CI/CD: The project has been successfully deployed on the Render platform, with processes for automatic building and monitoring of service performance under load configured.
Results:
A fully operational automated service has been launched, allowing users to scale their content across multiple platforms with one click, saving dozens of hours of manual work.
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1670 USD Optimization and architecture of the large product catalog Tutto
Online Stores & E-commerceTutto.market — a large-scale e-commerce project (marketplace/product catalog) that required clear structuring of large data sets and impeccable performance under high traffic.
Task:
Design the architecture of product catalogs, ensure fast processing and rendering of pages, and implement technical SEO "from scratch" to bring thousands of product cards to the top of Google search results.
…
What was done:
Semantic markup and clean code: No ready-made templates or plugins like ACF. The structure is built on clean code, eliminating DOM tree bloat and allowing the site to load in milliseconds.
Advanced SEO microdata: Implemented extended microdata (Product, Offer, AggregateRating from Schema.org) for all product cards and categories. This enabled the transmission of structured data about prices, availability, and ratings to Google for creating attractive snippets in search results.
Data architecture: Coordinated and implemented the logic for filtering, sorting, and quickly updating the product database without losing performance (PageSpeed Insights in the green zone).
Results:
Created a load-resistant, SEO-optimized product catalog that is quickly indexed by search engines and demonstrates high user retention rates due to instant rendering.
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1225 USD Development of a premium Telegram Mini App for booking
Hybrid Mobile Apps
MasterSpace is a modern service in the format of a Telegram Mini App (TMA), created for booking services and conducting internal business analytics directly within the messenger.
Task:
Develop a fast, visually flawless, and fully autonomous interface (Web App), optimized for mobile devices, with a premium minimalist design and complex booking logic.
…
What has been done:
Development of a clean TMA interface: The app was created without using builders or heavy libraries. Only clean code (HTML5, CSS3, vanilla JS) to ensure instant interface response within Telegram.
UI/UX in the style of "Quiet Luxury": A premium visual style has been implemented — elements of glassmorphism, matte textures, and a universal color palette (matte gold titanium), which perfectly adapts to both dark and light themes of the messenger.
Optimization for iOS (Safari WebView): Critical issues with iframe rendering and scrolling bugs typical for iOS devices have been successfully resolved, allowing the app to run smoothly on any iPhone.
Logic and analytics: A flexible calendar for selecting booking windows, a real-time appointment confirmation system, and an analytics module for tracking service performance have been implemented.
Results:
The client received a fully ready, custom business tool within Telegram that does not rely on third-party platforms or builders, has instant loading, and high conversion due to its premium design.
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1559 USD Custom development on clean code and local SEO promotion
Website Development
Lemgres.de — a business in the highly competitive German market, specializing in the manufacturing and installation of aluminum coverings for terraces (Terrassenüberdachung). The project required the development of a fast, premium website capable of converting German users, as well as deep search engine optimization to rank in the top of Google for local queries.
Tasks:
… Completely abandon builders and plugins, creating a unique interface with clean code and high rendering speed for PageSpeed Insights.
Implement a comprehensive local SEO strategy for the German region, considering modern Google algorithms (E-E-A-T).
Set up seamless lead generation and corporate email for the business.
What was done (Technical part and SEO):
Custom Frontend (clean code): The entire site was implemented exclusively using HTML5, CSS3, and vanilla JS without heavy frameworks. A responsive mobile accordion menu was created, feedback forms were integrated, and a smooth header appearance effect was implemented immediately after the background video finished.
Local SEO and geo-optimization: To maximize coverage of target regions in Germany, a static XML sitemap was developed and implemented, containing geo-tagged images in WebP format. The sitemap was integrated into the robots.txt file, significantly speeding up the indexing of local pages.
Optimization for E-E-A-T factors: The correct URL structure was designed for the German-speaking segment. Author blocks for expert articles were set up for the company founder (Sergiy Melnyk), thoughtful internal linking was implemented, and external links to authoritative thematic sources were added to confirm the site's trustworthiness in the eyes of Google.
Automation and SMTP setup: A logic for processing applications was developed: data from forms is instantly and simultaneously sent to the owner's Telegram channel and to Google Sheets for convenient client management. Technical verification of the domain was conducted for flawless delivery of corporate email through SMTP gateways (Zoho Mail and Brevo).
Results:
Thanks to clean code and resource optimization, the site received maximum scores in PageSpeed Insights.
A comprehensive approach to local SEO allowed the site to successfully achieve high positions in the Google Germany search results in its target region.
The client received a reliable and fast lead generation system, fully protected from failures in message or email delivery.
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1136 USD Redesign, SEO optimization, and automation of the kfeavia website
HTML & CSS
KFE Avia — an international company specializing in the sale of expensive aviation equipment, including airplanes, helicopters, and gliders. The specifics of the niche required the creation of a premium, fast, and reliable web resource capable of converting high-budget traffic. Task:
Conduct a complete redesign of the outdated website, perform comprehensive SEO adaptation to meet search engine requirements (Google TOP), set up automatic content import, and develop a tool for instant notification of the owner about new leads. What was implemented (Technical stack and optimization): Development on clean code: Complete abandonment of builders and heavy frameworks. The entire interface and logic are implemented exclusively on clean code (HTML5, CSS3, vanilla JS). This minimized rendering delays and achieved maximum scores in PageSpeed Insights. Deep SEO adaptation: Advanced search engine optimization practices were implemented — a proper semantic structure of the site was built, a hierarchy of headings (H1–H3) was set up, Schema.org microdata was implemented, and meta tags were optimized for the fastest possible indexing by Google crawlers. Optimization of Core Web Vitals: Preload technology was implemented for hero images (the main LCP element of the page). This drastically reduced the time to the first visual display of content on mobile and desktop devices. Content marketing automation: An autoposting system was integrated, which automatically imports new video materials from the company's YouTube channel directly into the site’s blog, maintaining the relevance of the resource without additional time costs. Development of a Telegram bot: A personal Telegram bot was created for the business owner, which sends real-time notifications about all filled forms, leads, and important user actions on the site. Results:
The web resource achieved impeccable loading speed and full compliance with modern Core Web Vitals requirements. Thanks to the combination of a quality domain history and lightning-fast technical optimization of the new clean code, just three days after deploying the updated site, the company received and successfully closed a large international deal worth $1.3 million.
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779 USD "Turnkey" website for a dog trainer
Interface Design (UI/UX)
Website development for a dog trainer: strict adherence to design and SEO optimization
Project description:
… Task: The client (a professional dog trainer and behavior specialist) approached with a clear vision of the visual component. The main requirement was strict compliance with the provided design — every button, font, and margin had to match the approved layout 100%. In addition to the visual aspect, the website required basic SEO adaptation for further promotion of the personal brand in search engines.
What was done:
Front-end development and Design:
Pixel Perfect layout: The design was implemented in full compliance with the client's technical specifications. The specific style, color scheme, and typography were preserved.
Responsiveness: The website displays correctly on all devices (mobile, tablets, desktop).
Functional blocks: A user-friendly certificate gallery, service blocks, and information about the specialist were developed.
Multilingualism: A language switcher (UA/EN) was implemented to reach a wider audience.
SEO optimization:
Internal code optimization was conducted for fast loading.
The correct hierarchy of headings (H1-H3) and meta tags (Title, Description) was set up for key pages.
Images were optimized for web format without loss of quality.
The website was added to the indexing of search engines.
Result: The client received a lightweight, fast, and aesthetic website that fully meets his expectations and the initial layout. Thanks to the SEO adaptation carried out, the resource is already ready to receive traffic and rank for professional queries.
Technologies: HTML5, CSS3/SCSS, JavaScript, SEO optimization.
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445 USD SEO website optimization + automation
Search Engine Optimization (SEO)
Comprehensive development: SEO optimization of the website and implementation of a Telegram Mini App for order automation
Project description
Task: The client (a company specializing in window and balcony installation) needed a comprehensive approach:
…
Improve the website's visibility in search engines (SEO).
Simplify the customer journey from browsing the catalog to placing an order.
Automate the transfer of leads to managers to avoid losing orders.
What was done:
1. SEO optimization and technical work:
A complete technical audit of the website was conducted.
Errors in the code and structure that hindered indexing were fixed.
Page loading speed was optimized (Core Web Vitals).
Meta tags and semantic structure were configured for better ranking on key queries.
2. Development and automation (Telegram Mini App):
A Telegram Web App (TMA) was developed — a full-fledged interactive catalog of services (windows, balconies, doors) within the messenger.
A convenient order calculator/builder was implemented with brand selection (WDS, Rehau, Steko) and types of services.
Integration with the "eRecovery" program: special fields and logic for government compensation programs were added.
Cross-platform functionality: the form works both inside Telegram and in a regular browser (Chrome/Safari) thanks to a universal API.
Backend on PHP (Webhook): instant transfer of applications from the website directly to the managers' working chat was configured. Applications contain full details (product, contacts, address).
Multilingualism: interface switching UA/RU was implemented without reloading the page.
Result: The website experienced an increase in organic traffic. A modern sales channel was implemented through a Telegram bot. The client receives applications instantly in the working group, which accelerated order processing and increased conversion.
Technologies: HTML5, Tailwind CSS, JavaScript (Telegram Web App API), PHP (cURL, Webhooks).
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1425 USD International: BeautySpace.ca (Canada) Niche: Beauty industry
Online Stores & E-commerce
Redesign the old version of the website into a stylish and lightweight site for the Canadian market that meets Western UI/UX standards. Solution: Minimalist design, full adaptation for mobile devices (Mobile First), emphasis on the visual part. The site looks expensive and instills trust in a discerning Western audience.
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601 USD Corporate website for a law firm
Website Development
Strict corporate design, clear structure of "turnkey" services, emphasis on expertise and direct communication (Call-to-Action).
Result:
The website serves as the main lead generation tool for the agency, converting visitors into calls.
• I create not just "code," but a ready sales tool.
… • I understand the difference between a website for "quick orders" and an image portal.
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94 USD Landing page for taxi
Search Engine Optimization (SEO)
I developed a landing page for a taxi service that ranked in the TOP Google for key queries. I know how to structure a website so that search engines love it.
How I can be useful:
- Quick development: Landing pages and multi-page websites on SendPulse / WordPress.
- SEO design: I immediately create a structure that search engines love (as in the taxi case).
… - Budget savings: You do not overpay for complex code where a simple and functional tool is needed.
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