Services
I’m a freelance developer with 10+ years of experience building automation systems, data pipelines, and AI-powered tools for clients worldwide. I started with Python and web scraping — and now apply that same engineering rigour to AI automation, where most no-code builders fall short on the data layer.
🤖 AI Automation & n8n Workflows
Replace manual, repetitive work with automation that runs reliably in the background — with or without AI steps.
What I build:
- n8n / Make workflows connecting your existing tools (CRM, spreadsheet, email, chat)
- AI steps that classify, extract key fields, summarise, draft replies, and route decisions
- Lead capture, document processing, approval flows, and scheduled reporting
- Error handling, retry logic, and monitoring so workflows don’t silently break
Integrations: HubSpot, GoHighLevel, Airtable, Google Workspace, Slack, Telegram, WhatsApp, Notion, REST APIs, webhooks
🧠 AI Agents
Multi-step agents that don’t just answer — they take action.
What I build:
- Agents that call tools, query databases, hit APIs, and complete multi-step tasks
- Memory-enabled assistants that maintain context across sessions
- Internal operations agents (CRM updates, ticket routing, report generation)
- Custom agent logic with LangChain / LangGraph, powered by Claude, GPT, or Gemini
📚 RAG Chatbots (Chat with Your Documents)
Give your team — or your customers — instant, accurate answers from your own documents, with every response citing the source.
What I build:
- Ingest PDFs, Word docs, Excel sheets, and plain text into a searchable knowledge base
- Semantic search + answer generation grounded strictly in your content
- Multi-tenant systems (each client/department sees only their own data)
- Built on PostgreSQL + pgvector — your data stays on your infrastructure
Good fit for: internal knowledge bases, HR policy Q&A, product catalogues, customer support, legal document search
🕷️ Web Scraping & Data Pipelines
Extract, clean, and deliver structured data at scale — the foundation that makes every AI system reliable.
What I handle:
- JavaScript-rendered & dynamic pages (SPAs, infinite scroll, lazy loading)
- CAPTCHAs, anti-bot systems, Cloudflare, rate limiting
- Login-protected and session-based websites
- Proxy rotation and IP management
- Scheduled, recurring pipelines with automatic delivery and monitoring
Output formats: CSV, JSON, Excel, PostgreSQL / SQLite, Google Sheets, REST API
🐍 Python Scripting & API Integrations
Custom scripts and backend tools that automate the tasks no off-the-shelf tool covers.
Examples:
- Data processing pipelines and ETL scripts
- REST API integrations (Shopify, Etsy, ShipStation, Google, and more)
- Scheduled background tasks and cron jobs
- Data cleaning, transformation, and reporting scripts
💰 Pricing
| Service | Starting From |
|---|---|
| n8n / Make automation workflow | $150 |
| AI workflow with LLM step (classify / extract / reply) | $300 |
| AI Agent (multi-step, tool-calling) | $800 |
| RAG chatbot (document Q&A with sources) | $800 |
| Simple scraper (single site, static) | $50 |
| Complex scraper (JS, login, anti-bot) | $120 |
| Python data processing / ETL | $80 |
All projects include source code, documentation, and error handling. Monthly retainer available for ongoing maintenance, updates, and monitoring.
Contact me for a free scoping call → — I’ll review your requirements and respond within 24 hours.
🏅 Why Work With Me?
- ✅ Top Rated Plus on Upwork — 100% Job Success · 67 jobs · 4,000+ hours delivered
- ✅ 10+ years of Python automation and data engineering
- ✅ Full-stack delivery — I handle the data layer that no-code builders can’t
- ✅ Every build ships with source code, docs, and error handling — so it survives the handoff
- ✅ Master’s in Cyber Security — data privacy and secure deployment by default
- ✅ Clear communication on US-friendly hours; honest about scope and cost
📬 Get Started
Contact Me → — I typically respond within 24 hours.
Or find me on:
- Upwork — Top Rated Plus · 100% Job Success
- Freelancer.com/u/etuannv — verified profile with reviews
- Fiverr.com/etuannv