Денис

Denys Shcherbatyi
Python Fullstack Engineer | FastAPI · Next.js · TypeScript
St. Pölten, Austria · Remote (CET) | [open contact info](look above in the "contact info" section)
Telegram: @Zebaro24 | [open contact info](look above in the "contact info" section) | github.com/Zebaro24 | zebaro.dev

SUMMARY
Python fullstack engineer with 2+ years of experience: FastAPI on the backend, Next.js, React and TypeScript on
the frontend. Over the last year I built and launched a production AI SaaS from the first commit: data model, API,
UI, subscriptions and CI/CD. I use AI dev tools such as Claude Code every day and know how to get the most out
of them.

TECHNICAL SKILLS
Backend: Python, FastAPI, Pydantic, Django / DRF, REST APIs, WebSockets
Frontend: TypeScript, Next.js, React, TanStack Query, Tailwind CSS, Three.js
Databases: PostgreSQL, SQLAlchemy, MongoDB
DevOps & Testing: Docker, GitHub Actions CI/CD, Google Cloud, pytest, Vitest, Playwright
AI & LLM: LLM APIs, multi-agent pipelines, MCP, Claude Code

WORK EXPERIENCE

Fullstack Engineer (Python / TypeScript) | Contract · US-based company (NDA)
Sep 2025 – Aug 2026 | Remote
Commercial AI-powered SaaS platform for content analysis, from the first commit to production.
• Designed the architecture and built the platform end to end: FastAPI backend, Next.js / TypeScript frontend
• Implemented subscription billing with usage quotas, real-time progress, admin console and data export
• Built the frontend on Next.js, React and strict TypeScript: shared design system and TanStack Query
• Built a multi-agent LLM pipeline: parallel agents whose structured outputs merge into one scored report
• Built automated CI/CD with secure deployments, safe database migrations and isolated environments
• Delivered an MCP server with OAuth 2.0 so AI assistants can work with the product on users' behalf
• Built AI-native dev tooling: Claude Code subagents, skills and hooks behind one shared quality gate
Scale: 1,300+ backend tests · 80+ documentation pages incl. 20+ ADRs · 1,100+ commits

Freelance Fullstack Developer | Self-employed
May 2024 – Sep 2025
Check-Point-SHOP — Telegram bot for ordering products with delivery
• Built customer and admin flows: catalog, orders, payment confirmation, order status, inventory, roles
Stack: Python, pyTelegramBotAPI, SQLAlchemy, PostgreSQL
Campus-Navigate-3D — Interactive 3D campus map built for a university · Live demo · Backend
• React + Three.js frontend with animated camera routes; Django REST API with an admin panel; Docker
Stack: React, Three.js, Django, DRF, PostgreSQL, Docker

PROJECTS
Zebaro Core — personal platform on my own server: Telegram bot, FastAPI services, MCP server and site
2025 – present
• zebaro.dev site on Next.js and strict TypeScript, with a contact form delivered to Telegram through the bot
• Job search: Playwright scrapers for 9 job boards (1,700+ vacancies in 2 months) with tiered filtering
• FastAPI service: Jobs API with keyset pagination, webhooks for GitHub, Telegram and Monobank
Stack: Python, FastAPI, Next.js, TypeScript, Playwright, MongoDB, Docker Compose, GitHub Actions, 750+ tests

EDUCATION & LANGUAGES
FH St. Pölten, Austria | Erasmus+ exchange semester, Computer Science | Feb 2025 – Jul 2025
Chernihiv Polytechnic National University | BSc in Computer Engineering (AI Systems) | 2021 – 2025
Ukrainian — Native | English — B2 (daily written work, spoken daily in Austria)