Vasily P.

✅ 8 years in software engineering | ✅ Full-Stack architecture | ✅ AI-powered systems Senior full-stack developer, software architect, and technical lead with 8 years of hands-on software development experience. My background also includes 15+ years working with enterprise business and IT systems, including IBM and SAP environments. I build scalable SaaS platforms, custom marketplaces, AI-powered systems, automation infrastructure, and high-performance web applications using TypeScript, Python, and cloud-native architectures. Beyond engineering, I bring strong system design, business analysis, planning, and delivery management capabilities. 𝗦𝗲𝗹𝗲𝗰𝘁𝗲𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ● AI orchestration SaaS platform to benchmark, build, and scale production-ready ML pipelines. ● Hybrid AI & Graph Query Engine: - Engineered an ETL pipeline feeding a columnar DB, graph Neo4j db, and a vector storage with AI-generated summaries; - Enabled multi-dimensional querying, letting users seamlessly combine instant structured filtering with deep graph traversal and LLM-driven semantic retrieval; - Optimized for low-latency GraphRAG. ● Distributed browser automation with proxy orchestration, anti-bot mitigation, and high-concurrency execution. ● In-game items marketplace with complex fulfilment and full end-to-end bot automation. ● In-game currency marketplace that implicitly connects clients and liquidity providers, processes thousands of transactions daily and serves hundreds of thousands of users. ● Social and subscription platform with custom Stripe flows, gated content systems, and real-time video streaming. ● Highly indexable service marketplace with near-perfect Lighthouse SEO scores and an average 50ms response latency, directly driving lower bounce rates and superior organic search visibility. 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ✔ Front-end: React/Next.js and modern frontend architectures. ✔ Back-end: - Node.js, NestJS, tRPC, GraphQL; - Python and FastAPI; - Relational database design with PostgreSQL and modern ORMs; - High-performance analytical and columnar databases: ClickHouse, DuckDB, Parquet; - NoSQL: Redis, MongoDB, DynamoDB, Neo4j; - Vector databases: Qdrant, pgvector, Chroma; - Queue-based architectures, Pub/Sub systems, and workflow orchestration. ✔ AI Engineering: - LangChain, LangSmith, DeepAgents; - OpenAI APIs and modern LLM ecosystems; - RAG systems and agentic workflows; - Model self-hosting with vLLM and Ollama; - AI automation and orchestration systems. ✔ Browser automation & scraping; ✔ Cloud infrastructure & DevOps: - AWS, GCP, Firebase, Cloudflare, Vercel, Supabase; - Docker, AWS ECS, GCP Kubernetes; - Linux server configuration, NGINX, proxies. ✔ Testing & Delivery: - Unit, integration, component, and E2E testing; - CI/CD with GitHub Actions and cloud-native deployment workflows. I’m highly self-sufficient, reliable, detail-oriented, and business-focused. I enjoy turning technically complex ideas into reliable production systems with strong engineering foundations and clear business value.