Development & IT Consultation with Marco R.
Development & IT Consultation with Marco R.
With over 30 successful projects on Upwork, I help clients tackle data analytics, automation, and AI challenges. Nowadays, AI is a requirement in almost any field, and therefore, clients look for someone capable of understanding new technologies such as Agents, multi-RAG systems, and prompt engineering.
Aligned with that, they also need a professional who excels in web scraping, data preprocessing, and backend engineering, as well as a bit of front-end development, particularly when it comes to displaying insights with dynamic dashboards or designing chatbots for the RAG systems.
I’m a Swiss-Army Knife when it comes to data and Python, with a strong, proven 5-star record of work. I also speak French 🇫🇷, Spanish 🇪🇸, and Portuguese 🇵🇹.
Get personalized advice on:
AI & Machine Learning
AI Integration
Chatbot Development
Data Analysis & Reports
Prompt Engineering
web scraping
data analytics
automation
data science
plotly
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About Marco
AI Agent Developer & Data Scientist | Harness Engineer
100%
Job Success
Lisbon, Portugal - 7:22 pm local time
I help clients build AI agents up to 90% faster by tweaking open-source agent harnesses 🔧
I’m a Data Scientist and AI Engineer with over 5 years of hands-on experience building AI systems, automation workflows, and data-driven applications for clients across multiple industries.
Lately, I became a specialist in the Hermes Agent, helping founders and companies deploy this open-source agent harness across a wide range of industries, environments, and use cases.
🌍 I speak: English, French, Spanish, and Portuguese.
🤖 I use: Cursor, Claude, Hermes Agent.
⭐ Highlights
↳ Trained 5+ founders on how to use the Hermes Agent to optimize their workload.
↳ Configured and deployed Hermes Agent workflows for multiple companies, following security and scalability best practices.
↳ Developed 5+ MVPs that successfully secured funding.
↳ Built and currently maintain scalable data pipelines for 3+ companies.
↳ Built production-ready Retrieval-Augmented Generation (RAG) systems using modern LLM frameworks and vector databases.
↳ Built custom AI-driven automation systems for content creation, including avatar videos, images, and social media workflows.
↳ Built AI agents that run on Slack, Telegram, Discord, and other gateways, including vibe-coded chat interfaces.
↳ Built tailored agent skills and workflows for clients across multiple industries, using prompt engineering best practices.
🧠 Skills & Tools
↳ AI & RAG Systems: LangGraph, LangChain, OpenAI, ChromaDB, Pinecone.
↳ Hermes Agent: setup, debugging, create custom AI Workflows, Skill integration, Gbrain, MCPs, security best practices.
↳ Automation & Scraping: Playwright, BeautifulSoup, Apify (Actors), Camoufox.
↳ Data Science & ML: Pandas, NumPy, Scikit-Learn, PyCaret, TensorFlow, MMM (Marketing Mix Model), NLP, Optuna.
↳ Dashboards & Visualization: Plotly Dash and Data Studio.
↳ Web Development: FastAPI, Flask, CSS, HTML, Jinja2, Vibe-coding.
If you need an AI agent that actually works, an automation that doesn't constantly break, or a reliable data platform, send me a message, and we'll help you design the right solution.
What to expect
Schedule the consultation
Choose from the freelancer’s available days and times.
Get advice for your custom needs
Share details about your project and what you want to talk about. The freelancer will review and reach out if they have questions.
Join the Zoom meeting
1-on-1 meeting with the freelancer to discuss your needs and project.
Approve the work
The freelancer will finish up the documents you asked for and send them to you for approval:
Before the consultation
Here’s what Marco will need to know before you meet
- What's the biggest challenge you're hoping to tackle? Are we talking dashboards, AI, OpenClaw, general Data Science, Python, or a bit of everything?
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WM
William M.
Jan 28, 2025
i consulted with Marco on an unusual agentic AI problem - he was very helpful. i intend to enter into proper contract with him in the near future.
EP
Egg P.
Jan 28, 2025
NW
Nicholas W.
Nov 6, 2024
Real expertise in data science and machine learning, very helpful for our project.
EF
Ebenezer F.
Jul 28, 2026
AI Agent Engineer — Autonomous Creative Production (OpenClaw / Hermes Agent)
JF
John F.
Jun 30, 2026
AI agent - identify websites using passkeys
AW
Austin W.
Jun 18, 2026
Hermes agent
Marco was great!
RM
Reed M.
Jun 12, 2026
Data Pipeline Work
Marco is a great developer, highly recommend
JM
John M.
Jun 9, 2026
60 minute consultation
Our first zoom call with Marco went pretty good. We discussed a lot of things in that 60 minutes and all of them are very interesting. We plan to together on several projects and our meeting was productive





