Philip C.

I'm Philip C., a Top Rated developer on Upwork with over 10 years of experience. I work with businesses to build production-grade AI apps and automations, API integrations, and scalable backends. CORE SPECIALTIES AI Systems Development: - Production AI integrations, custom LLM agents, knowledge bases, and RAG pipelines - Document extraction, automated parsing, and structured data outputs - Multi-agent orchestration and API tool calling Backend and API Architecture: - Scalable microservices and REST/GraphQL APIs (Python, FastAPI) - Secure authentication, RBAC, rate-limiting, and async background workers - Custom third-party integrations (Square, Shopify, Zoho CRM, ERP systems) Cloud, DevOps and Databases: - Containerized cloud deployments (AWS EC2, ECS, Lambda, Docker, CI/CD) - Relational databases and vector search (PostgreSQL, Supabase, MySQL, pgvector) RECENT ACHIEVEMENTS - Lead Backend Architect for an enterprise AI-powered SaaS platform ($99K+ single contract delivery). - Engineered a live B2B wholesale ordering and checkout platform integrated with real-time ERP data. - Built 10+ custom AI pipelines and automations including customer support workflows and document extraction systems. TECH STACK - Backend: Python, FastAPI, Node.js - AI and agents: LangGraph, LangChain, PydanticAI, OpenAI API, Claude, OpenRouter - Databases: PostgreSQL, Supabase, MySQL, Redis, Vector Databases - APIs and integrations: REST, GraphQL, n8n, Webhooks - Cloud and infrastructure: AWS (Lambda, EC2, ECS, S3), Docker, Railway, Replit Whether you need to build a modern AI pipeline from scratch or bridge complex external APIs into your existing stack, I deliver secure, maintainable code. Let's discuss your project goals.