About
I'm Kiril, a full-stack developer based in Boston, Massachusetts. I've been building on the web since 14 and freelancing since 2023 — client sites, custom web apps, and my own shipped products.
Client work runs from WordPress and WooCommerce stores — Elementor layouts, custom plugins, hosting and migrations — to React and Next.js when the project needs more than a CMS. I take work end-to-end: scope, UI, backend, deployment, and post-launch support.
On the product side I've shipped stackCount.io, Gym Diary, and Blinker. Fluent in English and Ukrainian. Open to full-time roles, freelance, and contract work.
- 4+Years building
- FreelanceSince 2023 · US & remote
- Full-timeOn-site · hybrid · remote
Projects
Shipped SaaS products, WordPress client work, and automation side projects.
- Built a workout tracker with set logging, estimated 1RM, and full training history.
- Shipped auth, mobile-friendly forms, and progressive overload targets per exercise.
- Designed a dashboard for max weight, session trends, and next-session recommendations.
- Built and launched SaaS MVP focused on creator analytics and insights.
- Developed secure auth flows, dashboards, billing, and user management.
- Implemented Stripe payments, exports, and scalable backend structure.
- Built a marketplace monitor that scrapes listings, stores them in SQLite, and scores value against historical stats.
- Automated continuous search loops with Playwright and configurable filters for price, mileage, and location.
- Integrated Telegram alerts when listings cross a deal-score threshold.
Skills
React, Next.js, WordPress, Python, and infrastructure I use in client and product work.
Experience & Education
Experience
Education
Founder & Full-Stack Developer @SaaS Products
2025 — present
- ›stackCount.io — Full-stack SaaS with auth, Stripe subscriptions, dashboards, and Postgres workflows. Live at stackcount-io.vercel.app
- ›Gym Diary — Workout tracker with set logging, Epley 1RM estimates, progressive overload, auth, and PostgreSQL. Live at gym-diary-delta.vercel.app
- ›Blinker — Marketplace monitor with Playwright scraping, SQLite deal scoring, and Telegram alerts. github.com/seggieval/Blinker
- ›Stack across products: Next.js, React, TypeScript, Tailwind, Postgres, Stripe, Python, and Vercel deployment.
- ›Owned each product end to end — UI, backend, architecture, deployment, and iteration.
Get in touch.Ready when you are.
Web apps, tools, and shipped work. One email is enough.
I typically reply within one business day.