Yaroslav K.
Verified expert
Top skills
Yaroslav K.
Verified expert
Meet Yaroslav ✨
A Full Stack Developer with five years of experience building scalable SaaS applications and end-to-end solutions across e-commerce, healthcare, hospitality, and marketing domains. Yaroslav specializes in Python with FastAPI, Django, and Flask on the backend and React with Next.js and TypeScript on the frontend, with strong expertise in cloud deployment, asynchronous programming, WebSockets, and AI integrations using LangChain and Gemini API.
He has delivered production systems across four distinct domains. His standout project is a designer logo platform with AI integration serving 3-5 years as Full Stack Developer, building system architecture, expanding platform functionality, integrating AI features, and managing CI/CD. He also led the full-stack rescue and stabilization of a HIPAA-compliant medical reporting platform, built a restaurant management system with computer vision and OCR for invoice and inventory automation, and developed a dropshipping automation service integrated with Stripe and Shopify.
Yaroslav works confidently with PostgreSQL, MongoDB, Redis, Firestore, Docker, AWS, GCP, Celery, and CI/CD via GitLab CI/CD and GitHub Actions. He holds two AWS certifications, Certified Cloud Practitioner and Certified AI Practitioner, plus a Python Developer certification from SoftServe. His combination of deep backend expertise and solid frontend skills makes him a reliable choice for complex, multi-domain SaaS projects.
If you need a full stack developer who can build scalable platforms from the ground up, rescue and stabilize legacy systems, and integrate AI across web applications, Yaroslav is ready to deliver 🚀
Download the CVHard skills
Python
JavaScript
TypeScript
FastAPI
Django
Django REST Framework
Flask
Flask-RESTx
Celery
React.js
Next.js
Redux
Bootstrap
Tailwind CSS
SQLAlchemy
Alembic
NumPy
Pandas
Selenium
LangChain
Contentful
APScheduler
WebSockets
SQL
PostgreSQL
MySQL
SQLite
MongoDB
Redis
Firestore
Docker
AWS
GCP
Nginx
GitLab CI/CD
GitHub Actions
REST API Development
Software Architecture
Technical Documentation
Async Programming
Tools
Git
GitHub
GitLab
Postman
Pytest
Unittest
Mock
Sentry
Loguru
Pip
Poetry
uv
Stripe API
Shopify GraphQL API
Gemini API
Supabase
Shadcn
Kubernetes
Microservices
Soft skills
Ownership
Problem solving
Attention to detail
Communication
Team collaboration
Reliability
Adaptability
Continuous learning
Design Platform
Full Stack Developer
Project Description:
Built and maintained a competitive logo design marketplace where clients post briefs and receive 200+ designs from participating designers. Improved system architecture, implemented AI features via LangChain and Django, extended platform functionality for designer hiring and brand kit creation, and managed full-cycle CI/CD pipelines and deployment scripts.
Tools & Technologies:
Python, Django, DRF, Flask, PostgreSQL, JavaScript, Next.js, LangChain, Docker, Celery, Contentful
Medical Reporting Software
Full Stack Developer
Project Description:
Rescued and stabilized a HIPAA-compliant medical reporting platform that generates comprehensive patient condition reports from intake forms and lab results. Refactored the codebase for stable production operation, fixed critical bugs affecting report generation, prepared the system for production deployment including testing, monitoring, and performance optimization, and implemented multi-template report generation with PDF processing.
Tools & Technologies:
Python, FastAPI, Firestore, PostgreSQL, Gemini API, TypeScript, React, Docker, GCP, Celery, Redis, REST APIs
Restaurant Management Platform
Full Stack Developer
Project Description:
Built and extended a full-stack restaurant management platform combining inventory management, purchasing, and analytics with automated data capture using computer vision and OCR from invoices and stocktake videos. Improved microservices architecture, implemented new features including inventory tracking and automated data capture, and integrated POS and accounting tool APIs.
Tools & Technologies:
Python, Flask, Flask-RESTx, Supabase, TypeScript, React, Tailwind CSS, Shadcn, Docker, GCP, REST APIs, Microservices
Dropshipping Platform
Back-End Developer
Project Description:
Developed backend services for a dropshipping automation platform supporting end-to-end store operations including product sourcing, catalog management, order management, and automated price and stock monitoring. Integrated Stripe and Shopify, migrated legacy users to a new payment system, and contributed to architecture development.
Tools & Technologies:
Python, FastAPI, Flask-RESTx, MySQL, AWS, Stripe API, Shopify GraphQL API, Kubernetes