Vuong P.

Full-stack developer for data-heavy products: web apps, continuous data sync pipelines between APIs and databases, data acquisition and automation. I design it end to end: multi-database architecture, backend APIs, frontend and cloud deployment. WHAT I BUILD • Full-stack web apps: SaaS platforms, dashboards, admin panels and internal tools with React, Vue, TypeScript, Node.js, Python, Django and FastAPI • Data sync systems: continuous, high-volume sync between APIs, apps and databases, with queues, retries, deduplication and monitoring so the data stays correct • Data pipelines and ETL: collect, clean, transform, validate and load data into MySQL, MongoDB or DynamoDB, then serve it through your own API • Data acquisition: APIs, webhooks and web data extraction from dozens of sources (one system I run today covers 50+) • Automation: background workers, scheduled jobs, alerts and workflows that replace manual work • AI features: OpenAI and Gemini integrations, document and PDF parsing, LLM workflows PROOF IN MY UPWORK HISTORY • Data acquisition system: 2,200+ hours with the same client since 2024 • Scraping and full-stack development: 1,900+ hours since 2025 • Full-stack developer for an AI website: 1,300+ hours since 2024 • Data extraction API across 50+ sources, linked to a MySQL database: 900+ hours • AI-native full-stack development for an employer branding automation platform (2026) HOW I WORK • My working hours cover the full European business day and most of the US East Coast day • Built for reliability: logging, alerts and retries, so a failed run does not mean lost data • I stay after launch: most of my hours come from long-term clients Tech: React, Vue, TypeScript, JavaScript, Node.js, Express, LoopBack, Python, Django, FastAPI, MySQL, MongoDB, DynamoDB, AWS, GCP, Docker Tell me which systems need to stay in sync, or what you want to build, and I will reply with how I would approach it and a realistic estimate.