// Andrii Petsera · floatrx · Ukraine, working remotely
Turnkey web systems that automate how companies work.
Andrii Petsera — full-stack web developer, 18 years in IT, end to end from discovery to support.
CRMs, internal tools, process automation and integrations for small businesses, startups and agencies — from discovery to support. In IT and design since 2008, a team lead for 6+ years — now I build with AI in the loop: from idea to a working product, fast.
Available for new projects · reply within 24 h · UA / EN
Press ⌘K to jump anywhere — or just scroll.
// profile — last updated 2026export const andrii = { handle: "floatrx", role: "Full-stack web developer", inIT: { since: 2008, years: 18 }, path: ["designer", "full-stack", "team lead"], ledTeams: "6+ years", delivers: "turnkey", loves: "business process automation", buildsWith: "AI in the loop",} satisfies Developer;01 — ~/services
ls what-i-build/
From idea to a working product, fast. AI speeds up the routine parts, so your budget goes into the problem itself.
// Automate with AI
- flagship
Business process automation
CRMs, internal tools and workflow systems that replace spreadsheets and manual routine.
cron("0 9 * * 1-5") - 02
AI integration
LLM features, chat assistants, RAG over your documents, AI agents and MCP servers.
integrate("claude" | "openai", { rag, agents, mcp }) - 03
Telegram bots & mini apps
Bots for orders, notifications and payments; Telegram Mini Apps.
see: @floatrxbot →bot.on("message") - 04
AI workflow for dev teams
For development teams: I set up AI coding workflows (agents, loops and guardrails) so developers hand whole tasks to AI and ship faster. Consulting included. Plus IDE plugins, MCP servers, Chrome extensions and CI/CD.
see: Harness →loop(agent, { until: "done" }) - 05
AI documentation & user guides
AI agents write user guides with fresh screenshots of your app and keep them up to date as the product changes.
see: Ledgerline →guides.regenerate({ screenshots: true })
// Build
- 06
Web apps & SaaS
Full-stack products, dashboards, analytics and admin panels on Next.js and React.
build("saas") - 07
Websites & landing pages
Fast, SEO-ready sites with a headless CMS; WordPress → Next.js migrations.
migrate("wp", "next") - 08
Desktop & menu-bar apps
A desktop app over your scripts and CLIs: a window, a menu-bar icon with live status, notifications — buttons instead of the terminal.
see: Stack app →tray.setMenu(stack)
// Design & motion
- 09
UI/UX design
From Figma to production; design systems. Designing since 2008.
figma.toCode() - 10
Motion video
Product tours, feature launches and brand clips: music cut on the beat, voice-over, subtitles. Also videos recorded from your live app.
see: Showreel →render("tour.mp4", { fps: 30 }) - 11
Presentations & pitch decks
Animated decks for clients and investors, built once and exported both as a video and as a PDF.
deck.export(["mp4", "pdf"])
Discovery
A call about goals, users and constraints. You get scope and an estimate.
Design
Flows and UI in Figma, agreed before code is written.
Build
Short iterations with a live preview link you can click.
Launch
Deployment, domain, analytics and monitoring — all set up.
Support
Fixes, new features and growth after release.
Have a project? Let’s talk.
Tell me what you need — I’ll get back to you with questions or a rough plan.
02 — ~/work
ls selected work
Automation systems for businesses, a streaming product, client sites — and the tools I build for my own workflow.
↑↓ switch files⌘K open a case by name
// git notes what colleagues say
“Being on the same team, we’ve developed from scratch and released 2 complex and sophisticated systems, and I cannot overstate Andrew’s role in it… As a frontend lead, he managed 3 trainee/junior developers, who now reached middle level… He’s quick, persistent, productive, versatile.”“Excellent Head of Front end Department. Always has a vision to improve the project. I’m glad I had to work under the guidance of this person.”03 — ~/career
git log journey
In IT since 2008 — from web designer to full-stack developer and team lead. Newest commits first.
- cd781c8HEAD → nowSept 2025 → now
MGear · Full-stack developer · frontend focus
A revenue intelligence platform for US hospital systems. Web app and admin UI end to end, a role-based analytics redesign, UI/UX design, the marketing site, a desktop app for the dev stack, AI-written user guides, motion videos and decks; NestJS and Go backend support.React · TypeScript · Redux Toolkit · Ant Design · NestJS · Go · Electron · PostgreSQL · Remotion
- c5a11a5tag: portals2025 → now
2KWeby · Web developer · part-time, project-based · Czech clients
Websites, portals and redesigns for a Czech audience: culture and sports portals rebuilt from WordPress to Next.js, the studio’s own site.Next.js · Prisma · PostgreSQL · next-intl · Vercel
- 2404253tag: hanimaxFeb 2026 – Jun 2026
BOOSTA · Full-stack developer (freelancer)
Built the HanimaX web app from the first commit — catalog, series and episode pages, paywall and subscriptions, i18n — and helped the backend developer on the NestJS API.Next.js · TypeScript · HeroUI · Tailwind CSS · next-intl · NestJS · TypeORM · Redis
- 94a0665branch: freelance2022 → now
Freelance · Turnkey web development
Turnkey projects for direct clients, in parallel with company work: business process automation, web apps and websites, Telegram bots and integrations.Next.js · Vercel · Telegram Bot API
- 3bbf830tag: head-of-deptJan 2019 – Jan 2024
Raise.Band · Frontend developer, Head of department · Kyiv
Led a team of 4 frontend developers building SPA web apps — CRM platforms and internal tooling — from architecture and UI/UX to deployment.TypeScript · React · Redux Toolkit · Next.js · Strapi · Chrome extensions
- 412499bAug 2016 – Jan 2019
Learnify.co · Frontend developer & web designer · Rivne
80+ turnkey websites — design, layout, CMS integration, SEO and support. Automated the frontend workflow (Gulp, bash, CI/CD), wrote conventions, mentored newcomers.JavaScript · SCSS · Jinja2 · Gulp · CI/CD · Photoshop
- 8483e0fMay 2014 – Jul 2016
Freelance · Web master: design, frontend, backend
Turnkey websites for clients: design in Photoshop/Illustrator, HTML5/CSS3/jQuery layout, WordPress integration and support.HTML5 · CSS3 · jQuery · WordPress
- 45cfb7eJun 2010 – Mar 2014
RTE Ukraine · Software & web developer, IT administrator
Software that automated the company’s business processes, plus corporate websites and infrastructure. That’s where my love for automation started.Delphi · WordPress · Linux
- 3530569Aug 2008 – 2011
Web design · Freelance web designer (UI/UX, Flash)
Interfaces and website layouts in Photoshop for turnkey sites. That’s where my eye for UI/UX comes from.
04 — ~/stack
cat package.json
Tools are the means; outcomes are the point. These are the ones I reach for every week.
{
"name": "floatrx", "author": "Andrii Petsera",
"stack": {
"frontend": [13
- TypeScript
- React
- Next.js
- Tailwind CSS
- Redux Toolkit
- React Query
- Zustand
- GraphQL
- SCSS
- HeroUI
- shadcn/ui
- Ant Design
- Motion
"backend": [8
- Node.js
- PostgreSQL
- Prisma
- Supabase
- Express
- MongoDB
- WebSocket
- Strapi
"ai & automation": [7
- Claude
- MCP
- OpenAI
- RAG
- Telegram Bot API
- Webhooks & cron
- Claude Code agents
"motion & desktop": [6
- Remotion
- HyperFrames
- GSAP
- FFmpeg
- Electron
- Tauri
"tooling & delivery": [11
- Vercel
- Git
- Vite
- Playwright
- Vitest
- Storybook
- GitHub Actions
- Turborepo
- Docker
- Figma
- Chrome extensions
"leadership": [5
- Team lead
- Mentoring
- Scrum
- Code review
- Tech docs
}
}
05 — ~/faq
less faq.md
Money, ownership and support — the answers before you ask.
How much does a project cost?
It depends on the scope. After a short discovery call you get the scope, a fixed estimate and a timeline, so you know the price before any work starts.
How do payments work?
A prepayment to start, then the rest in parts as agreed stages are delivered and accepted. Small tasks and ongoing work are paid hourly.
Who owns the code and the accounts?
You do. After the final payment I hand over the repository, hosting, domain and every account the project uses, with the docs to run it.
What happens after launch?
Four weeks of free bug fixes after the release. After that, support and new features are paid hourly.
Time zone and communication?
I am in Kyiv (UTC+2/+3) and adjust my schedule to yours, US included. Telegram, email or calls in Ukrainian or English; a progress update with a preview link every week.
Do you sign an NDA?
Yes. Several projects in my portfolio are under NDA, which is why their client names and screens are hidden.