Євгеній

YEVHENII
HREM
FULL STACK DEVELOPER
Lviv, Ukraine

[открыть контакты](см. выше в блоке «контактная информация») · [открыть контакты](см. выше в блоке «контактная информация»)

Telegram · Linkedin · Github

SUMMARY
Full stack developer with 4+ years of experience. Comfortable across the stack: TypeScript with React / Next.js on the
frontend, Node.js (Express, Prisma) and Python (Django, aiogram, LangChain) on the backend, plus Go (Gin) when
the client needs it. Databases: PostgreSQL, MongoDB, Supabase. Docker and CI/CD on Vercel and Ubuntu VPS. Most
of my recent work is AI-related: RAG pipelines, multi-channel chatbots, LLM-backed features shipped to production
for freelance clients. Open to remote full-time and contract roles.

SKILLS
Languages: TypeScript, JavaScript (ES6+), Python 3.11, Go, HTML, CSS
Frontend: React 19, Next.js 13–16, Nuxt 4, Vue 3, Redux Toolkit, Zustand, TanStack Query, Tailwind CSS, SASS,
Framer Motion, Shadcn/ui, Radix UI, Mantine, Figma
Backend: Node.js, Express, Prisma, REST API (RESTful), Python (Django, django-ninja, aiogram), Go (Gin), Celery,
SQLAlchemy, caching (Redis), GraphQL API
CMS: Sanity CMS, WordPress
Databases: PostgreSQL, MongoDB, SQLite, Supabase, Firebase, Redis, ChromaDB (vector)
AI / LLM: OpenAI API (GPT-4o, Whisper), Anthropic Claude, LangChain, LangChain4j, RAG (document ingestion,
chunking, embeddings, retrieval), prompt engineering, tool calling, MCP
Chatbots: Telegram Bot API (aiogram 3), Telegram Mini Apps SDK, Discord.py, Instagram Graph API, Messenger
Auth: NextAuth (OAuth2 + credentials), Supabase Auth, JWT, bcrypt
DevOps: Git, GitHub, Docker, Docker Compose, CI/CD (Continuous Integration / Continuous Deployment), GitHub
Actions, Vercel, Cloudinary, Ubuntu VPS, systemd, Nginx, PM2
Methodology: Agile / Scrum, Kanban, clean code, SOLID, Clean Architecture

EXPERIENCE
FULL STACK / AI DEVELOPER | FREELANCE
June 2025 - Present · Remote · Lviv, Ukraine
Delivered 10+ production projects for international clients: e-commerce, multi-channel chatbots, RAG knowledge bases,
AI SaaS admin panels, and Telegram/Discord automations.

Responsibilities:
• LLM-backed chatbots deployed to production (Telegram, Discord, Instagram, Messenger, WhatsApp) on Python
+ LangChain + ChromaDB + OpenAI GPT-4o-mini - per-user chat memory and document ingestion for RAG
over client documents (PDF, DOCX, CSV, XLSX), running as systemd services on Ubuntu VPS.
• Built a multi-tenant AI Social Manager SaaS and 2 e-commerce shops on Next.js 15 + Mantine UI with an Express
+ Prisma + Supabase + Cloudinary backend and a Telegram Mini App checkout - replacing manual chat-based
ordering with a single admin panel and cutting client order-processing time by ~60%.
• Delivered supporting Python and Go services: a Django 5 + Celery AI astrology platform (OpenAI + ephem +
ReportLab PDF generation, containerized with Docker Compose), an aiogram 3 event-bot with QR-ticket
generation, a Go/Gin donation platform integrated with MonoPay, and WordPress theme/plugin customization
for marketing teams.
Technologies: React.js, Next.js 15-16, Tailwind CSS, Framer Motion, MongoDB, Node.js, Express, Prisma, Zustand,
Telegram Bot API, Docker, REST API, OAuth2, Google Analytics, Python, Django, Aiogram, Go, WordPress, RAG.

FRONTEND DEVELOPER | AUTOHUB CONNECT CRM PLATFORM
February 2023 - May 2025 · Remote · Lviv, Ukraine
Automotive Service Management startup. The main objective was to create an integrated platform for the management
of automobile services. Worked on UI design, development, and data-visualization components as part of a
development team.

Responsibilities:
• Developed and maintained 20+ reusable React components for the core CRM modules (work orders,
customer profiles, vehicle history), reducing duplicate code across the platform and cutting new feature
development time by ~30%.
• Built an interactive service analytics dashboard with Recharts (time-series charts, stacked bar and area charts,
drill-down reports) that became the primary decision-making tool for service managers tracking KPIs and
technician performance.
• Designed and implemented the global state architecture using Redux Toolkit and React Router with code-
splitting, reducing store-related boilerplate by ~40% and improving initial page load time from ~4.5s to
under 2s on mid-range device.
Technologies: React.js, Redux Toolkit, React Router, Recharts, TypeScript, HTML5, CSS3, JavaScript.

SERVICE MANAGER / WEB DEVELOPER | LUMBER SALES
May 2016 - September 2022 · Lviv, Ukraine
Joined as a customer-service manager at a lumber exporter. Over time I took over the company's website and basic IT -
this is where I first started writing code in production.

Responsibilities:
• Led a full redesign and migration of the corporate website to a modern stack (Next.js 13 + next-intl),
deployed on Vercel with Analytics - replacing the legacy site with a faster, SEO-friendly, maintainable
codebase.
 • Expanded the site from a single locale to 9 languages (uk, en, pl, ru, it, fr, de, sv, da) using next-intl, opening
up 5 new export markets for the sales team and directly contributing to international lead growth.
• Integrated Sanity CMS with custom schemas (offer, post) and EmailJS contact forms, enabling the sales team
to publish product offers and handle inquiries independently without developer involvement; also ran IT
operations end-to-end (domain/DNS, hosting, backups, deployments, and on-page SEO).
Technologies: React.js, Next.js, i18n, EmailJS, CMS Sanity, HTML5, CSS3, JavaScript.

EDUCATION
Lviv.st. Hetman Mazepa 29, International Academy of Personnel Management

Bachelor

2012 to 2016

LANGUAGES
English - B1 · Ukrainian - Native · Polish - A2