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Kyrylo L.
Kyrylo L.
Full-Stack Developer

Verified expert

Kyrylo L.

Full-Stack Developer

Verified expert

middle
Ukraine
$30/hour
English – Advanced
Ukrainian – Native
Top skills
React Python FastAPI NextJS LangChain PostgreSQL Docker GCP TypeScript RAG

Meet Kyrylo ✨

A Full Stack and AI Developer with three years of experience building high-performance web and mobile applications in the blockchain and healthcare AI domains. Kyrylo specializes in designing scalable, modular architectures, integrating complex third-party systems, and delivering AI-powered solutions using React, Next.js, FastAPI, Django, and modern LLM tooling including LangChain, OpenAI, and RAG pipelines.

He has delivered full-cycle production systems including an AI-powered medical applications ecosystem spanning semantic search, custom AI agents, a real-time chatbot interface, and a digital pathology SVS file viewer with image fragment extraction — all built around a custom machine learning model on GCP. He also built features for a blockchain education platform serving 150,000+ concurrent users, handling crypto wallet integrations and real-time data delivery at scale.

Kyrylo takes full ownership of technical implementation from architecture design and technology selection to infrastructure setup, deployment, and production maintenance. He brings solid experience with Docker, Kubernetes, PostgreSQL, Redis, and cloud infrastructure on GCP, combined with strong async programming skills and modern CI/CD practices.

If you need a developer who can architect and build complete AI-powered platforms from backend services to frontend interfaces, handle production infrastructure, and deliver across both healthcare AI and Web3 domains, Kyrylo is ready to bring that full-cycle capability to your team 🚀

Download the CV

Hard skills

Python

JavaScript

TypeScript

FastAPI

Django

Django REST Framework

Flask

Pydantic

Celery

Asyncio

React

Next.js

Tailwind CSS

Socket.IO

SQLAlchemy

Alembic

BeautifulSoup

OpenAI

LangChain

LangGraph

LangSmith

PGvector

Whisper

ElevenLabs

Groq

RAG Pipelines

SQL

PostgreSQL

MySQL

SQLite

Redis

MongoDB

Docker

Kubernetes

GCP

Nginx

GitHub Actions

GitHub CI/CD

WebSockets

REST API Development

Software Architecture

Design Patterns

Technical Documentation

Async Programming

Tools

Git

GitHub

GitLab

Postman

Pytest

Unittest

Mock

PyCharm

Visual Studio

WebStorm

ChatGPT

Gemini

Copilot

Soft skills

Ownership

Problem solving

Architectural thinking

Adaptability

Communication

Team collaboration

Attention to detail

Continuous learning

AI-Powered Medical Applications Ecosystem

Full Stack / AI Developer
Duration:

1.5 years

Domains:
Healthcare AI Digital Pathology Generative Multimodal Systems
Project Description:

Led full-cycle development of a suite of AI-powered medical applications built around a custom machine learning model. Built a semantic search system over a vector database, a custom AI agent configuration platform, a real-time chatbot interface, and an SVS file viewer with image fragment extraction. Designed the entire technical architecture with a focus on scalability and GCP integration, and implemented RAG pipelines for enhanced AI agent responses.

Tools & Technologies:

FastAPI, React, TypeScript, Next.js, Redis, Firestore, PostgreSQL, OpenAI, RAG, Docker, GCP

Blockchain Web and Mobile Application

Full Stack Developer
Duration:

1.5 years

Domains:
Blockchain Education
Project Description:

Developed features for a Web3 education platform helping users navigate 23,000+ crypto tokens, scaled to support 150,000+ concurrent users. Built crypto wallet integrations for secure cross-platform transactions, delivered scalable real-time data features, and contributed to architectural decisions for performance, reliability, and security.

Tools & Technologies:

React, Django, PostgreSQL, Docker, Docker Compose

Bachelor's Degree in Computer Engineering

Kyiv Polytechnic Institute, Kyiv

This freelancer has not participated in any projects yet.

This freelancer has not received any reviews yet.

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