I will build a custom excel or google sheets system around your process

C
castlane
C
castlane
Malacki R

About this gig

A system built around how your business actually works, not a template you have to bend to fit.


What I build:

Trackers and operational systems

Dashboards and management reporting

Financial models, budgets and cashflow forecasts

Automated reports using VBA or Apps Script

Full interface systems with navigation, forms and record editing


That last one surprises people. A spreadsheet can behave like an application: tabs, filtered views, a record form that loads and saves,

one clean data layer underneath. If you are not ready for a licensed platform, this is the closest thing to it.


I am a part-qualified management accountant as well as a Microsoft certified developer. Most people can make a spreadsheet look right. Fewer can tell you whether the numbers underneath it are right.


Everything is fully editable. No locked cells, no password-protected formulas, no coming back to me to change a column.


Send me what you have and I will tell you whether it needs rebuilding or just repairing.


Get to know Malacki R

Malacki R

Power Platform Business Systems Developer

  • FromUnited Kingdom
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Languages

    English, German
Microsoft certified Excel and Power Platform developer and part-qualified management accountant (CIMA), 6+ years building business systems. Most spreadsheet developers build what you ask for. I understand the numbers too, so forecasts, budgets, margin models and management reports are built right. Excel, Google Sheets, VBA, Apps Script, Power Apps, Power Automate, Power BI, Dataverse, SharePoint. New builds plus fixes to systems you already have. Recent work: custom CRM replacing off-the-shelf software, automation that scaled a workforce from 300 to 1,000, £150k annual cost removed.