You will get an AI-Powered Virtual Assistant Tailored for Your Business Needs
Project details
I offer cutting-edge virtual assistant solutions powered by large language models (LLMs) designed to streamline business operations. Whether you're looking for a simple chatbot or a sophisticated AI assistant, my expertise ensures that the technology is tailored to meet your unique business needs. With a focus on user-friendly, scalable, and seamless integration, I guarantee a solution that enhances customer interactions, boosts productivity, and evolves with your business. By leveraging AI and advanced machine learning, I deliver high-quality, reliable, and personalized assistants built to last.
Target Country
Worldwide, United StatesWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$3,500
|
Advanced
$7,000
|
|---|---|---|---|
| Delivery Time | 7 days | 15 days | 30 days |
Number of Projects | 6 | 4 | 2 |
General Project Consulting | |||
Define Project Goals | |||
Define Deliverables & KPIs | - | - | - |
Establish Schedule & Milestones | |||
Risk Management | - | - | - |
Resource Management | |||
Budget Management | - | - | - |
Project Reports | |||
Project Diagrams Provided | - | - | - |
About Sergio Andres
Python Data analyst | RAG -LLM-Streamlit
Medellin, Colombia - 12:31 pm local time
Over the past year I've designed and shipped 8+ production systems for a
fresh-produce import & brokerage operation — data pipelines, AI agents, and
full-stack tools that replaced spreadsheets, WhatsApp threads, and hours of
manual work. These aren't demos. They run 24/7 on cron and webhooks, and the
operations team depends on them every single day.
What I actually do:
• AI AGENTS & LLM APPS — I built an autonomous WhatsApp agent that answers
business-intelligence questions in the user's own language, reads price
lists from images and PDFs using vision models, and sends an hourly deal-flow
report. I parse messy supplier documents with a regex → OCR → LLM cascade
that scores its own confidence so nothing gets silently mis-read.
• DATA ENGINEERING & ETL — Daily pipelines that pull from REST APIs, clean and
transform the data, and push to Supabase, Azure SQL, and Power BI / SharePoint.
Idempotent upserts, lock files, fallbacks — built so a single bad run never
corrupts the dataset.
• FULL-STACK INTERNAL TOOLS — A complete dispatch dashboard the ops team uses
daily: Python scraper → SQLite, a FastAPI backend with JWT auth and a full
audit trail, and a React + Vite frontend with live filtering, bulk actions,
and analytics.
• API & SYSTEM INTEGRATION — Deep work with Microsoft Graph (email, SharePoint,
OneDrive, app-only auth), Telegram & WhatsApp bots, and even reverse-engineering
an undocumented Azure B2C API (Playwright headless login + JWT refresh) to
build a searchable directory.
My stack:
Python (pandas, FastAPI, Selenium, httpx) · Node.js / TypeScript · React + Vite ·
PostgreSQL · Supabase · Azure SQL · SQLite · Microsoft Graph API · Docker ·
systemd / cron · nginx · LLM integration (Claude, DeepSeek, OpenAI) · OCR & PDF
parsing · Web scraping · Telegram / WhatsApp bots · MCP (Model Context Protocol)
I'm an economist by training, so I don't just move data around — I understand
what the numbers mean for the business and build accordingly. I write
defensively (backups before touching production, human-in-the-loop on anything
that sends an email or money), and I communicate clearly in English and Spanish.
If you have a repetitive process that lives in spreadsheets, a pile of documents
nobody has time to read, or data trapped across systems that should talk to each
other — that's exactly what I build. Send me the messy version and let's automate it.
Sergio Andrés López Afanador
Steps for completing your project
After purchasing the project, send requirements so Sergio Andres can start the project.
Delivery time starts when Sergio Andres receives requirements from you.
Sergio Andres works on your project following the steps below.
Revisions may occur after the delivery date.
Client Purchase & Requirements
Client purchases the project and submits detailed requirements, including business goals, preferred platforms, and system integrations.