Luis Charca

Turn your Excel headaches into smart, automated solutions.

I help businesses and professionals worldwide unlock the full power of Excel, VBA, Power Query, and Google Sheets — transforming messy spreadsheets into efficient, automated tools that save time, cut errors, and boost productivity.

✅ Build dynamic dashboards, simulators, and custom calculators
✅ Automate repetitive workflows and eliminate manual steps
✅ Solve tough, “impossible” Excel/VBA challenges

Here’s what my clients say about working with me:

“In our company, we needed someone to build a risk analysis tool. Luis has incredible knowledge in this field, he is an excellent programmer and project controls guru. I would recommend Luis to anyone! He went above and beyond what was required for the project, when we shared the product with our colleagues, everyone was impressed and complimented the quality of work.” – Manager, Worldwide Chemical Manufacturing company

“Luis is an absolute Excel wizard. He has helped me with a number of tasks, sometimes with immediate urgency. He grasped requirements quickly and delivered high-quality output.” – Director, Australian Green Energy company

“Luis is the perfect combination of professionalism, know-how, and customer-centricity. His expertise and flexibility were second to none. His work has been flawless and done in a timely manner. A pleasure to work with him. Highly recommended.” – Director, Belgium Technology Industry company

My background: Civil Engineer and Senior Project Controller with 18+ years of experience in mining & infrastructure projects (up to USD 600M). Beyond project controls, I’m passionate about automation — ranked as Top 10 LATAM in the Microsoft Excel World Championship 2025 and recognized as a Top-Rated Freelancer on UpWork (200+ projects, 100% Job Success).

👉 Looking for freelance support with Excel, VBA, or Google Sheets? Let’s connect — I’d love to help you get more done with less effort.