Replace spreadsheets with a real system
Your process has outgrown the spreadsheet.
Let me be clear from the start: I do not work inside Excel (no macros or formulas). I am a software developer. I take the process that lives in those files today, understand it with your team and build a custom web system that replaces it: database, users and permissions, validations, change history, dashboards and access from any device. Your historical data is migrated to the new system.
Who it is for
Sound familiar?
- 1Teams tracking inventory, quotes, budgets or follow-ups in shared files.
- 2Teams emailing versions of the same file back and forth.
- 3Businesses where a data-entry mistake costs money and nobody knows who changed what.
What's included
What you get
- Process analysis: what gets captured, which rules your team applies and who uses what.
- A well-designed database and migration of your historical data.
- Data entry with validations, catalogs and automatic calculations.
- Users, permissions and a history of who changed what.
- Dashboards, reports and exports whenever you need them.
Technologies
- React
- Angular
- NestJS
- PostgreSQL
- MongoDB
- Python
How we work
How it works
- 1Day 1
Discovery
A free 30-minute call. I learn your process, your systems and what hurts.
- 248 h
Clear proposal
Scope, deliverables, timeline and fixed price in writing. No fine print.
- 3Weeks
Build
Weekly progress you can see and test. You pay for working deliverables.
- 430-day warranty
Launch & support
You get code, documentation and credentials. 30-day warranty and optional support.
Case studies
Where I've done it before
RL PoolscapesConstruction · Naples, Florida
RL Poolscapes: custom CRM for a luxury pool builder
A CRM/ERP built around how a builder actually works: leads, proposals, contracts, jobs, costs, invoicing, warranties and maintenance.
- React
- NestJS
- MongoDB
- Tailwind CSS
- Docker
Own productRetail · Flower shops
Operations platform for flower shops
Point of sale, orders, recipes, perishable inventory, production, deliveries and payments in one platform.
- React
- Node.js
- MongoDB
- Mercado Pago
- Mapbox
Frequently asked questions
Questions about this service
Do you build Excel macros, formulas or in-Excel automations?
No. My job is to take the process out of the spreadsheet and into a custom web system with a database and users. If what you need is a macro or a formula, an Excel specialist is a better fit.
Will I lose my historical data?
No. We migrate your information from the current files with import programs, validating and cleaning as needed, and compare totals to confirm everything matches.
Can I still get my data out to Excel?
Yes. The system exports reports whenever you need and accepts files for bulk loads. The difference is that the source of truth lives in the system, not in a file.
Related services
Often paired with
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Web systems built around how your business works: orders, inventory, portals, dashboards, approval flows.
From $3,200 USD · per project
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From $890 USD · per dashboard
SAP, ERP, CRM & API integrations
SAP, Odoo, Dynamics, Oracle, HubSpot, Shopify, payments, WhatsApp: make your systems talk to each other.
From $1,290 USD · per integration
Ready to get started?
Tell me what you need. Within one business day I will reply with a clear idea of how to solve it and what it costs.