Alexander Kolarov

Full-Stack Engineer • Next.js • TypeScript • Node.js • SQL/NoSQL

Sofia, Bulgaria
[email protected] • +359 876 508 666
linkedin.com/in/alexander-m-kolarov • github.com/jynzo94 • kolarclub.com/about

Summary

Full-stack engineer with 10+ years of experience building web applications and digital products. Strong background in React, Next.js, TypeScript and Node.js, with experience across backend systems, infrastructure, payments, analytics, SEO and organic growth.

Product-minded, curious and fast-learning, with strong ownership, mentoring experience and the ability to turn business requirements into practical software solutions.

Skills

Frontend: Next.js, React, TypeScript, Tailwind CSS, shadcn/ui, daisyUI, Zustand/Redux, GSAP
Backend: Node.js, Payload CMS, Supabase, Prisma, MongoDB, PostgreSQL, BullMQ
Infrastructure: Docker, Linux, Hetzner, Coolify/Dokploy, Vercel, Cloudflare, GitHub Actions
Tools & Integrations: Stripe, Lemon Squeezy, Puppeteer, FFmpeg, OpenAI
Analytics & Growth: SEO, Core Web Vitals, GA4, GTM, Meta Ads, Voluum

Education

BSc Computer Science — UNIBIT, Sofia

2022–Present

Languages

Bulgarian (native), English (fluent)

Other Personal Projects

Guess Us by Emocia (2026) — Multiplayer party game (React, Supabase).
kolarclub.com (2026) — Personal blog (Astro, Cloudflare, Pages CMS).
createnote.xyz (2022) — Simple notes web application (Next.js, daisyUI, PostgreSQL).
anketi.bg (2021) — React, ASP.NET, MSSQL survey platform.

Experience

Founder & Full-Stack Engineer — Emocia & Cveten Podaruk

2025 — Present • Sofia

Founded and developed both platforms, taking ownership of product development, architecture, infrastructure, deployment, analytics and growth.

Emocia.net — Personalized Digital Greeting Card Platform

Designed, built and launched a platform for creating personalized animated digital greeting cards.
Grew the platform organically to nearly 20,000 generated cards.
Built interactive card experiences and an asynchronous video-generation pipeline using Puppeteer, FFmpeg and BullMQ.
Managed the platform end to end, including payments, analytics, infrastructure, deployments and ongoing product improvements.

cveten-podaruk.com — E-Commerce Flower and Gift Platform

Architected and developed a production e-commerce platform using Next.js and Payload CMS.
Built the product catalogue, checkout, order workflows and internal business automations.
Implemented payments, analytics, SEO and structured data.
Managed infrastructure, deployment and ongoing product development.

Tiebreak Solutions — Full‑Stack Developer

2024 — 2025 • Sofia

Worked on a large Next.js and Payload CMS project, marketing tool integrations, and landing page systems.

Built tradeapp.com with Next.js and Payload CMS, including its multi-tenant architecture.
Integrated GA, GTM, Meta Ads, Voluum.
Implemented multi-tenant LP system: Astro frontend, headless CMS, Tailwind, GitHub Actions, Coolify/Dokploy.

Betnamin — Full‑Stack Developer

2023 — 2024 • Remote

Sportsbook project betnamin.com (no longer active). Worked across multiple parts of the stack.

Next.js, custom CMS, Tailwind, Material UI, Node.js.
Contributed to sportsbook features as part of a small development team.

Freelance & Family Business

2021 — 2023 • Remote

Freelance projects and support for family business, while continuously coding and building personal projects.

EGT Interactive (Amusnet) — Junior → Senior Developer

2015 — 2021 • Sofia

Led and developed casino games in the roulette category. Mentored junior devs and took ownership of the entire roulette project line.

Technologies: Flash, PixiJS, React, Node.js.
Delivered multiple production-ready roulette games with high player traffic.
Mentored and guided new hires and juniors.