Oleh H.

Got an idea for a SaaS app, AI-powered product, or cloud-native system? 🚀 I’m a Full-Stack & Cloud Engineer with AI/LLM expertise, helping businesses build scalable web apps, production-ready SaaS platforms, and intelligent solutions powered by Python, LangChain, OpenAI, Claude, and Ollama. 🤝 Why Clients Work With Me - Transparent communication and proactive updates - Clean, maintainable, and production-ready code - Expertise across Full-Stack, Cloud, and AI/LLMs - Focus on scalability, performance, and cost efficiency 💡 What I Deliver - Full-Stack Development – SaaS platforms & web apps with Python (FastAPI, Django), Go (Gin), Node.js, React, Vue, TypeScript. - AI & LLM Integration – Custom AI apps using LangChain, OpenAI GPT, Claude, Ollama, RAG (Retrieval-Augmented Generation), vector databases (Pinecone, Weaviate, Chroma, pgvector, clickhouse). - API Development & Integration – Secure, high-performance REST & GraphQL APIs, plus third-party AI/ML services. - Database Management – MySQL, PostgreSQL, MongoDB, Clickhouse, Neo4j, optimized for scale and speed. - Cloud Architecture (AWS) – Design scalable, cost-efficient systems with EC2, ECS, Lambda, RDS, S3, CloudWatch, IAM. - DevOps & Automation – CI/CD pipelines, Docker, Kubernetes, Terraform, Ansible, Jenkins, GitHub Actions, and monitoring with Prometheus & Grafana. - System Administration – Linux servers, security hardening, backups, monitoring (Prometheus, Grafana, ELK). ✅ Whether you’re building a SaaS platform, deploying cloud infrastructure, or integrating LLMs into your product, I can take your project from idea to production. Let’s connect and make it happen. 🚀