SERVICE · REMOTE FROM MEXICO
Custom software development and internal tools
When your operation runs on spreadsheets, chat threads and notebooks, everyone ends up with a different version of the truth. I build custom web systems — dashboards, inventory, records, role-based access and reports — that put that information in one place and adapt to how your team already works, not the other way around.
This is a fit if…
- You track inventory, orders or staff across spreadsheets that no longer reconcile.
- Off-the-shelf software forces you to change your process or charges for features you never use.
- Different people need to see and edit only what is relevant to them.
- You want to turn an internal process that works into a product others can use.
What you get
- A short scope document: modules, roles, data and priorities.
- Web application with React on the front end and NestJS or Python on the back end.
- PostgreSQL database with backups and versioned migrations.
- Authentication and role-based permissions.
- Automated tests for critical flows, plus usage and deployment documentation.
How I work
- 01
Map the process
We walk through how work happens today: who enters what, where information gets lost and which decisions depend on that data.
- 02
First useful version
We pick the module that saves the most time and I build it first, so your team uses it in weeks rather than months.
- 03
Iterations
With real usage we adjust screens and rules and add modules by priority. Every release is tested before it goes live.
- 04
Handover and continuity
You get the code, credentials and documentation. You can keep working with me on maintenance or hand it to another team.
What I need from you
- Real examples of your current spreadsheets, forms or reports.
- Someone on your team who knows the process and can answer questions.
- Time to test each release with real data.
Good to know
- Regulated functions such as tax invoicing, medical records or payments require authorized providers; I integrate with them rather than replace them.
- Scope is defined by stage; adding modules mid-stage moves time and cost.
- Hosting and third-party services have their own monthly costs, explained before we start.
Problems I solve with this service
Custom inventory management system
Stock in, stock out and real-time levels, built around how your business actually works.
Read solution →Delivery tracking for logistics companies
Status of every delivery, proof of delivery and customer notifications in one system, without calling the driver.
Read solution →IoT crop monitoring with soil sensors
Soil moisture and field conditions on one dashboard, with rules or models to decide when to irrigate.
Read solution →Related work
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Ingestion, normalization and analysis of academic evaluations to turn responses into useful information.
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Menu Engine
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ScriptC
A local static analysis orchestrator. Multiple audit engines, one tool for the team.
View case study →Make a better-informed decision
Custom software development cost in 2026: Mexico vs the US
Most 2026 benchmarks put custom software between $25,000 and $250,000, with small and mid-sized projects usually at $30,000–$100,000 according to a GoodFirms survey. Building with a nearshore developer in Mexico typically costs well under half the US hourly rate, but scope, integrations and maintenance move the total far more than location does.
Hiring nearshoreHow much does it cost to hire a web developer in Mexico?
Published 2026 benchmarks put web developers in Mexico at roughly $22–$38 per hour for juniors, $38–$58 for mid-level and $55–$78 for seniors, versus $100–$150 for a comparable senior in the US. What you actually pay depends on whether you hire directly, through a freelancer or through an agency, and on how well the scope is defined.
AutomationHow to automate Excel reports with Python (practical guide)
To automate an Excel report with Python, use pandas to read and combine the source files, clean the data, calculate the summaries you build by hand today, and write the result to a new workbook; openpyxl handles formatting, and a scheduler such as cron or Windows Task Scheduler runs it every day or week without anyone opening Excel.
Hiring nearshoreFreelance developer vs agency: how to choose (and where nearshore fits)
Hire a freelance developer when the project is well defined, fits one person's skills and you want direct communication at a lower rate. Hire an agency when you need several specialists at once, committed capacity or managed delivery. Nearshore developers in Mexico or Latin America can be either, with the advantage of working in your time zone.
Software qualityWhat is software QA testing, and how do you know your system needs it?
Software QA (quality assurance) is the set of practices that make sure software works as intended before it reaches users: defining what "correct" means, testing features and integrations, automating regression checks and catching security issues early. If every release breaks something that used to work, or nobody can say what was tested, your system needs QA.
Frequently asked questions
Custom software or an off-the-shelf product?
If a product covers about 80% of your process at a fair price, it usually makes sense to use it and integrate it. Custom software pays off when your process is your advantage, when license costs pile up, or when you need to connect several tools that do not talk to each other.
How much does custom software cost?
The number of modules, user types, integrations with other systems and the amount of data to migrate drive the cost. That is why I start with a scoped first version: you lower the initial risk and cost, and the rest is prioritized with real usage.
Do I own the code?
Yes. At the end you receive the repository, credentials and documentation, so you do not depend on me.
Can you migrate our spreadsheet data?
Yes. I clean and normalize existing data and show you which records have problems before importing them.
Want to talk it through?
Tell me what you need to solve. I’ll reply with specific questions, a possible scope and a clear next step — no commitment.