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I turn ideas and processes into software ready to deliver results.

Over 5 years of Full-Stack experience, from planning to deploy, with no niche restrictions.

About

Who is Senff-Dev?

Matheus Senff

BrazilLinkedIn(opens in a new tab)

Full Stack Software Engineer with over 5 years of experience in the market. Throughout my career, I have built technology solutions for a wide range of niches, including legal, automotive, e-commerce and food, as well as projects in AI automation, spreadsheets and web platforms.

What I work with

UI/UX & Product Design

Intuitive, appealing interfaces.

  • Clean interfaces that need no manual
  • Flows designed for daily use
  • Light and dark themes, truly responsive

Delivery Guarantee & Work Pace

  1. Early momentum: First test version in 2 to 3 weeks after kickoff.

  2. Weekly progress: Updated deploys and a progress report every 7 days.

  3. Working code first: Fewer theoretical reports, more finished features in your hands.

  4. From zero to full production in just a few months.

Projects

What I've built

FAQ

Before we start

How much does a project cost?

It depends on the scope, so there's no fixed price list. In a short call I learn about the problem and send a written proposal with scope, timeline and price — before any commitment.

How long does it take?

The first test version ships in 2 to 3 weeks. From then on there's a deploy every week, and a complete system is production-ready in a few months.

How do I follow the progress?

Every 7 days you get a new version live and a short report on what was done and what comes next. You test the real system, not a slide deck.

Do I own the code?

Yes. Code, repository, domain and hosting accounts are in your company's name. Nothing is locked to me.

What happens after delivery?

Your choice: I keep going with monthly maintenance and improvements, or I hand it over with the documentation another team needs to take it from there.

Is there a contract and confidentiality?

Yes. Every project has a written contract, and I sign a non-disclosure agreement (NDA) whenever the project calls for one.

Do you work in any industry?

Yes. I've shipped corporate communication, service operations, legal automation and AI agents. What matters is understanding the process, and that applies to any niche.

Is the work remote?

Yes, fully remote, on Brasília time (UTC−3), in English or Portuguese. Video calls when needed; everything else flows over messages.

Contact

Let's talk

Tell me your idea. I'll build it.

What do you want to talk about?

Contact by emailcontatomatheussenff@gmail.com