SERVICE LINE

Custom Software Development in Sonora, Mexico

When no off-the-shelf system fits your operation, we build yours. Custom web apps and SaaS platforms, built with the same engineering rigor we run your infrastructure with: documented, secure by design, and made to integrate with what you already have. Nearshore, in your time zone, bilingual.

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THE PROBLEM

Spreadsheets that can't keep up with your operation

Processes that live in Excel, systems that don’t talk to each other, reports someone rebuilds by hand every month. At some point the "workaround" costs more than the fix. We build the software you’re missing — only what you need — and connect it to your infrastructure, your database and your security. One accountable team for the system and for what runs underneath it.

CAPABILITIES

What we build

  • Custom web applications

    Your process, digitized to the way you work — not to a packaged system's way.

  • Custom SaaS platforms

    Multi-tenant cloud software for your operation or to offer your own customers.

  • Python/Flask and .NET development

    Proven, maintainable stacks — no trendy tech nobody can support later.

  • Integrations and APIs

    We connect your systems (ERP, SQL Server, third-party services) so data stops being re-keyed by hand.

  • Security by design

    Built with hardening and best practices from the start, not patched at the end.

  • Support and evolution

    Whoever builds it knows it: we maintain and grow the system with you.

Looking for a ready-made solution instead of a build from scratch? See our SaaS products.

HOW WE WORK

How we work: clear scope, visible deliveries, code that holds up

  1. Discovery and scope

    We learn your process and define what the software solves (and what it doesn't). You get a clear scope and quote before we write code.

  2. Staged deliveries

    We build in increments you can see and validate — no months-long black box until the end.

  3. Handover with docs and support

    We deliver the system documented, secure by design, with a support plan. The code is yours and maintainable.

STACK

Technologies we operate

  • Python
  • Flask
  • .NET
  • Microsoft SQL Server

[a validar] frontend / cloud to display before claiming a stack or alliances.

Our method guarantee

A written scope and quote before we start, staged deliveries you validate along the way, and documented code in your hands at the end. No artificial lock-in.

[a validar] development projects / cases — do not publish until confirmed (rule 4).

QUESTIONS

Frequently asked questions

  • What is the difference between this and your "Products"?
    Here we build custom software — something that doesn't exist off the shelf and is made for you. In Products we offer ready-made SaaS solutions we only configure. Not sure which fits? Request a quote and we'll guide you.
  • What do you develop in?
    Mainly Python/Flask and .NET: mature, secure, long-supported stacks. We choose for maintainability, not hype.
  • Do I own the code?
    Yes. We deliver the documented system and the source code; we don't lock you into us to keep it running.
  • Can you integrate it with my ERP or database?
    Yes. We connect to SQL Server, your ERP and third-party services via API — that's exactly the upside of the same team running your infrastructure.

EXPLORE

Explore the other lines:

See all services →Nearshoring →

FESSATECH

Tell us what you need to build. We'll give you a clear scope and quote.

No padded scope: we quote only what your operation needs.

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