Alejandro Marcos

My name is Alejandro. I am a Chemical Engineer specializing in technical Excel and data analysis for engineering and processes.

I help companies, professionals, and engineering students automate calculations, analyze data, and structure technical information in Excel, in a clear, reliable, and easy-to-use way.

I have experience working with:

Spreadsheet automation (advanced formulas, pivot tables)

Data analysis and cleaning

Technical calculation models (material balances, consumption, costs, production)

Creation of simple dashboards for indicator tracking

Technical support and tutoring in engineering subjects (calculus, chemistry, unit operations)

I work 100% online, with clear communication and oriented towards practical solutions, for both specific needs and small projects.

If you need your data or calculations to “start making sense” in Excel, I will be happy to help you.