Custom Software Development, From Scratch or From Excel
I build the software your business actually works with: from a blank page, or from the spreadsheets, reports and paper processes you use today to run things.
Common starting points
A spreadsheet that outgrew Excel
Several people editing, no history, formulas nobody dares to touch. The rules are already in the file; they deserve an application.
Reports built by hand
Every week someone copies numbers from three places into a report. That can be a screen that updates itself.
Paper and manual processes
Forms, notebooks and message threads that run the operation. A simple system gives you records, search and control.
A portal for customers or partners
Let them check, order or pay on their own, with their own prices and permissions.
How we work together
- Talk A free 30-minute call: how you work today and what hurts.
- Scope We agree on a small first version and on what stays out of it.
- Build in increments Working software you can try along the way, not a surprise at the end.
- Launch and hand over Deployment, documentation and the support you need to keep going.
If you want to define the scope before committing to a project, I also offer a one-week, fixed-price Discovery: a clear scope, a prototype and an estimate. Ask me about it.
How I build
Web applications and APIs on .NET and SQL Server, with clean, maintainable code. I use AI-assisted development to deliver faster, and every change is reviewed and tested.
Not sure what you need yet? I also do architecture reviews and practical technical advice, to find bottlenecks and propose realistic solutions.
Experience
- Independent consultant and developer since 2014: end-to-end software for small and medium businesses, startups and enterprise clients, from new web applications and REST APIs to database architecture. 40+ clients, 100+ projects and 4 proprietary SaaS products.
- Senior full-stack developer at Ballast Lane (2022–2026), building enterprise web applications and APIs on .NET in an Agile team.
- Ruth Benzacar: custom backend platform for a contemporary art gallery in Argentina, covering artwork inventory, digital catalogs, sales processing and artist administration.
- Conciliación de Tarjetas: card reconciliation platform that automates the matching and verification of credit and debit card transactions.
- Callcenter Control: call management backend for an internal call center, with agent assignment, call routing, real-time reporting and performance dashboards.
Frequently asked questions
Can you build from my current Excel files?
Yes. Your spreadsheets already hold the real rules of your business. I start from them, keep what works and fix what hurts: duplicated data, fragile formulas, no history, no permissions.
How much does it cost?
It depends on the scope, so there is no fixed price list. Book a free 30-minute call and we will see what a sensible first version looks like.
How long does it take?
I aim for a first version you can try early and then keep growing it in small steps. The exact time depends on the scope.
What if I only have a rough idea?
That is fine. The first call and, if you want, a one-week fixed-price Discovery are meant to turn a rough idea into a clear scope. Ask me about it.
Have a spreadsheet, a report or an idea?
Book a free 30-minute call and tell me how things work today. We will see what a first version could look like.