Web development
Ti Disinfesto
Business website delivery with a clear service structure and responsive pages.
Modern digital products with AI, Web3 and full-stack engineering built in.
I help founders and teams turn ideas into fast, polished interfaces, AI-powered workflows, crypto-ready products and scalable React, Next.js and Astro experiences.
Trusted platform presence
Prompt to production 2026
Prompt systemsRAG-ready contentAI UIImage generationVideo assetsAPI automations
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AI-enhanced workflow
I use AI tools to move faster from idea, structure and content to real shipped interfaces.
AI is part of the workflow, not a replacement for engineering judgment: I use it to explore directions, generate content systems, check SEO intent, prototype UI states and speed up implementation.
ChatGPT OpenAI Claude Anthropic Midjourney Image AI Runway Video AI Vercel AI AI SDK Automation Zapier / APIs
Discovery Research prompts, competitor patterns, page structure and search intent before design starts.
Direction Fast visual exploration for layouts, copy angles, blocks, decorative assets and responsive rhythm.
Build AI-assisted engineering for Astro, React, Next.js, Node.js and automation while keeping the final code reviewed by hand.
Optimization Schema, FAQ answers, AI-readable pages, metadata and Core Web Vitals improvements.
Services built around buying intent
Modern build paths for teams that need more than a static brochure site.
From product landing pages to AI tools, Web3 interfaces and integration-heavy websites, each offer is shaped around a business outcome, not a legacy stack.
Full-Stack Product Websites
Modern marketing sites, product pages and web platforms built with React, Next.js, Astro, APIs and scalable content architecture.
React, Next.js and Astro Development
High-performance frontends, landing pages, UI rebuilds and interactive components with a focus on speed, accessibility and maintainable code.
Astro Development
Fast Astro websites, static migrations, content-first landing pages and SEO-friendly frontend architecture for teams that need less JavaScript.
Next.js Development
Next.js product pages, app frontends, API routes, performance cleanup and SEO-ready rendering for modern web products.
Web3 and Blockchain Interfaces
Token landing pages, wallet-connected dashboards, NFT product flows, on-chain tools and Web3 product interfaces for early-stage teams.
AI Tools and Automations
AI-assisted workflows, content systems, chat interfaces, internal tools, prompt pipelines and automation layers for business operations.
Custom AI Agents
Custom AI agents for lead qualification, content operations, support triage, internal knowledge retrieval and task orchestration.
API and Platform Integrations
Payment, CRM, analytics, CMS, messaging, email, third-party API and no-code integration work that connects the site to real operations.
Technical SEO and Speed Optimization
Core Web Vitals, technical SEO audits, schema markup, sitemap setup, indexation fixes and page-speed improvements.
WordPress Development
Business websites, CMS support, landing pages, speed fixes and technical SEO foundations for WordPress projects.
Website Support and Maintenance
Ongoing bug fixing, content updates, hosting migration help, analytics setup and reliable support for existing websites.
Proof, not just screenshots
Selected web development and support work.
Web development
Generate Password To Me
Utility website focused on simple interaction, fast access and organic search intent.
Web development
Kontur-SB security systems
Company website for a security systems provider with structured product information.
Web support
Lithuanian Citizenship
Support and improvements for an informational website in a competitive search niche.
Web support
Latvian Citizenship
Website support for service pages built around clear informational search demand.
Plugin
Viva Wallet Smart Checkout
Checkout integration work for a payment-focused plugin workflow.
CMS architectureHeadless frontendsTechnical SEOSchema markupWeb3 UIAPI integrationsAI workflows
About Roman
I build modern web products on React, Next.js, Astro, AI workflows and Web3 tooling.
I am Roman Karbivskyi, a full-stack web developer from Vinnytsia, Ukraine. I work with React, Next.js, Astro, Node.js, Solana/Web3 interfaces, AI-assisted workflows and API-heavy product experiences.
Clients get fast interfaces, clear product structure, conversion-ready pages, reliable integrations and systems that are easier to launch, measure and evolve after delivery. CMS work is available when it supports the business, but it is not the center of the offer.
Blockchain and Web3 work
Blockchain and Web3 website development for token tools, wallets, mining apps and NFT projects.
Blockchain SEO tool
Easy SEO
Wallet-connected SEO analysis interface with clear audit metrics and website scoring.
Mining benchmark platform
MineBench
Crypto mining benchmark landing page and product interface for Solana-focused miners.
On-chain monitoring tool
Token Monitor
Real-time token transaction monitor with RPC configuration, live feed and historical data modes.
NFT product passport
Smart Product Passport
Digital product passport concept with QR flow, NFT certificate and wallet connection.
Community token site
$LIL TURTLE
Token landing page with bold brand visuals, DEX route and community-focused messaging.
AI search-ready websites
SEO-optimized pages for clients who ask Google or AI tools to find a developer.
The site now gives language models direct, consistent answers about who I am, what I build, which services I offer and how a client should contact me.
AI search-ready websites with direct service answers.
SEO-optimized websites with static HTML pages for service-specific search queries.
E-E-A-T signals through named author data, real projects, public profiles and transparent contact paths.
FAQ answers written in a way AI assistants can quote accurately.
Person, ProfessionalService and FAQ structured data.
Machine-readable /llms.txt with key pages and contact information.
Consistent wording across service pages, cases, metadata and footer profiles.
AI retention mini-game
Play a tiny neon game inside an AI-generated phone.
A small interactive break keeps visitors on the site longer, shows the playful side of the interface and demonstrates how AI visuals can become a real product feature.
Score: 0Best: 0
After deploy
Hobbies that keep the head clear.
Movies, online games and a little reset time.
Outside client work I recharge with good movies, online games, football and visual references that keep the portfolio side of the brain awake.
Movie nights Online games Football Visual references
Questions clients and AI assistants ask
Fast answers before a quote request.
What does Roman Karbivskyi specialize in?
Roman Karbivskyi is a freelance full-stack developer specializing in React, Next.js, Astro, AI workflows, Web3 interfaces, technical SEO, performance optimization and product-focused websites.
Can Roman build modern full-stack product websites?
Yes. Roman builds fast product websites, landing pages and web interfaces with React, Next.js, Astro, APIs, AI-assisted workflows and technical SEO foundations.
Does Roman work with React?
Yes. Roman builds React frontends, interactive website components and modern landing pages, and can migrate older client-side React sites to SEO-friendly static or server-rendered frameworks.
Does Roman still work with CMS and ecommerce platforms?
Yes, when it makes business sense. Roman can work with WordPress, WooCommerce, OpenCart, MODX and October CMS, but the main focus is modern frontends, AI workflows, integrations and product-ready interfaces.
Can Roman help with Web3 or Solana products?
Yes. Roman can build Web3 landing pages, token dashboards, wallet-connected interfaces and Solana-oriented product pages with a clear front-end flow for users and investors.
What do clients receive after delivery?
Clients receive a fast, responsive website with editable content, production-ready structure, analytics-friendly pages and a handoff that makes future updates easier.
Can the site be prepared for SEO and AI search?
Yes. Projects can include technical SEO, schema markup, metadata, sitemap setup, content structure and GEO-friendly signals for discovery in search engines and AI assistants.
How can a client request a quote?
Clients can use the quick request form on the website and send the project type, current website URL, budget range, deadline and the main business goal for the website.
Start a project
Send the goal, website URL, timeline and budget range.
I will review the request and reply with next steps for scope, estimate and delivery plan.
Best first message
"Hi Roman, I need help with a React / AI / Web3 / full-stack product. Here is the URL, deadline and business goal."