Yaroslav — Full-stack web developer
● Full-stack web developer / Yaroslav
I build websites and web services that work for the business. From idea to production — one person, the whole chain.
01 / Who I am
I build websitesthat make money.
My name is Yaroslav. I'm a full-stack web developer: I plan, design, code, launch and maintain — on my own.
Every project in this portfolio was built by me alone, from scratch. All of them run in production and earn money for their owners — that is the main metric I judge my work by.
I love problems where product meets engineering: when the job is not just to code a mockup, but to figure out how the site will sell — and carry it all the way to the first payment.
02 / Path
From the first gigto my own product.
01 — Start
Self-employed
First commercial projects at 18. Working directly with clients: brief, estimate, design, code, deploy, support — all by myself. That's where I learned to speak the language of business results.
0102 — Growth
In-house
Product development in a team: processes, code review, scheduled releases, responsibility for other people's money. Freelancer speed, plus an engineer's discipline.
0203 — Now
Co-founder & CEO, Comersi
Came up with a marketplace for buying and selling businesses with company due diligence by tax ID, and wrote all of it myself: the architecture, every feature, every edge case. I lead the product, the code and the growth.
0304 — Next
Your project
I take on projects where results matter: a product launch, a store, a service or a website that has to pay for itself. Direct contact, no middlemen.
04
03 / Approach
How Iwork.
- 01
Business problem first
Before opening the editor I figure out how the project will earn: who the customer is, what they buy and what stops them from buying.
- 02
One head, the whole chain
Design, frontend, backend, database and server in one pair of hands. Nothing gets lost between contractors, decisions are fast.
- 03
Production, not a mockup
SEO, speed, analytics, payments, admin panel, backups — everything a site needs to survive in the real world is built in from day one.
- 04
I stay after launch
Launch is the beginning. I support, grow and scale the projects I build, and I'm honest about what's worth changing and what isn't.
- 05
AI is a tool, not an autopilot
I hand a model what's easy to verify: boilerplate, tests, drafts. Architecture, security and anything that touches money I decide myself. I read AI-written code like a stranger's pull request: models are confidently wrong and miss edge cases. Client data never goes to cloud models.
04 / Services
What Ido.
- 0101
Landing pages
One-pagers for ads and product launches: a strong first screen, a clear offer, fast loading, analytics and lead forms.
- Conversion
- Motion
- A/B-ready
- 0202
Corporate websites
A company website people trust: services or product catalog, case studies, documents and an admin panel to update content yourself.
- CMS
- SEO
- Multilingual
- 0303
Online stores
Catalog, filters, cart, customer account, payments via SBP, invoice or card acquiring, integrations with accounting and delivery.
- Catalog
- Payments
- Accounts
- 0404
Marketplaces & web services
Complex products with roles, subscriptions, chats, external APIs and payment logic. Architecture that survives growth.
- Architecture
- Roles
- Subscriptions
- 0505
Integrations
Payment systems, CRM, 1C, government registries, email, messengers, external APIs — I wire the website into business processes.
- API
- Payments
- Automation
- 0606
Support & growth
I take over existing projects: updates, speed-ups, fixes, new features and regular backups.
- SLA
- Performance
- Refactoring
- 0707
Design, 3D & video
Interfaces in Figma, 3D in Blender and Three.js, promo video editing in Premiere Pro, presentation layouts in InDesign.
- UI
- 3D
- Motion
05 / Stack
Engineered forproduction.
- 01Next.js · React · TypeScript · JavaScript
Frontend
Server rendering, App Router, strict typing and interfaces that stay smooth even on budget phones.
- 02NestJS · PHP · Payload CMS
Backend
APIs, business logic, roles and permissions, admin panels that let clients manage content themselves.
- 03PostgreSQL · MongoDB · phpMyAdmin
Data
Schemas designed to survive growth: indexes, migrations, reports and careful handling of money.
- 04Tailwind · CSS · PostCSS
Styling
Design systems, pixel-perfect responsive layouts and motion that looks expensive without hurting performance.
- 05Docker · CI/CD
Infrastructure
Containers, automated builds and deploys to your own servers — no lock-in to a single platform.
- 06Three.js · Blender · Premiere Pro
3D & motion
WebGL scenes, shaders, 3D models and promo videos — the things that make a website memorable. Like this one.
- 07Figma · InDesign
Design
Prototypes, interfaces and print. Design and code in one pair of hands means nothing is lost in handoff.
- 08Claude Code · Local LLMs · Code review
AI
A working tool, not a replacement for an engineer. I spot where a model is wrong or shallow, fix its code and decide what it can be trusted with. I can run models on my own servers.
06 / Achievements
What'sdone.
- 3+
years of commercial development — from self-employment to my own company
- 100%
of the portfolio built solo, from scratch — and running in production
- CEO
co-founder of Comersi: came up with the product and wrote all the code of a business marketplace with tax-ID due diligence
- 3
projects delivered to clients — all running in production
- AI
ran Comersi's own neural networks on its own server — user data never leaves for the cloud
- ∞
curiosity for hard problems: from shaders to tax reports over an API
∞
Edge of the axis.Next up — your project.
Tell me about the task — I'll reply within a day with a solution, timeline and budget.
→ Work
Selectedwork.
Each one solo, from scratch, in production and earning real money.
Drag the canvas. Bring a project to the centre — it opens itself.
Shown after launch.
∞