Senior .NET Engineer · End-to-End Development · Practical AI

Complete systems.
Senior expertise.
Practical AI.

I’m Alexandre Delgado, a senior .NET engineer. I build complete web and mobile systems, from architecture to production.

My work starts with understanding your business: what needs to work, what needs to change, and what the software must support over time. Technology comes after that understanding, not before it.

One technical owner. Clear decisions. Responsibility for the whole system.

Fig. 01 — FrotiX · production architecture
CLIENTS Blazor web NOTIFY Meta · WhatsApp 01 · FIELD .NET MAUI apps Inspections · Passenger count 02 · SECURE CHANNEL Secure link mobile ⇄ on-prem 03 · APPLICATION ASP.NET Core · Blazor Server & WebAssembly 04 · DATA SQL Server Indexed views
Project
Systems, end to end
Role
Sole developer
Location
Brasília · Remote
Scope
Web · Mobile · Data
/ 01 · AI & Leadership

The AI revolution needs experienced leadership.

I believe artificial intelligence will be the defining technological revolution of our time, bringing enormous benefits to IT and the businesses it supports. I see opportunities to automate repetitive work, accelerate development, improve analysis, and build solutions that were previously difficult to deliver.

Those benefits will be far better realized when experienced senior professionals lead the next generation of AI teams. Emerging talent brings fresh ideas, curiosity, and a willingness to experiment. Senior leadership should give that energy direction, connecting technical decisions to business needs, security, and long-term maintainability.

This is not about choosing experience over innovation. It is about combining them: giving teams room to explore while establishing clear quality standards and accountability for what reaches production.

The strongest AI teams combine emerging talent with experienced leadership.

/ 02 · Services

What I can build and improve for you

Start with the problem your business needs to solve. Define the scope, understand the constraints, and choose an approach that makes sense for the work ahead.

01

Business Web Applications

ASP.NET Core and Blazor applications built around your workflows, with attention to business rules and future maintenance.

02

Connected Mobile Apps

.NET MAUI applications for Android and iOS, connected to your backend, supporting the people and tasks that need to work beyond the desktop.

03

Legacy System Modernization

A practical transition to modern .NET. Preserve what still works, address what holds you back, and plan changes around operational priorities.

04

Database and Application Performance

SQL Server and query optimization focused on the bottlenecks that affect everyday work, from slow screens to demanding reports.

05

System and API Integration

Connect applications and external services with clear data flows, deliberate error handling, and responsibility for how the parts work together.

06

AI Features with a Clear Purpose

Put AI where it can improve a specific task. Define the expected benefit, how results will be evaluated, and where human review belongs.

Every feature should serve the operation. Every technical decision should support the system as a whole.

/ 03 · Featured Project

FrotiX: complete system
ownership in practice

I designed and built FrotiX, a fleet management platform for the Brazilian Chamber of Deputies, taking responsibility for its web application, mobile apps, and database.

For me, owning a system means looking beyond individual features. It means understanding how an interface decision affects a business rule, how a data decision affects performance, and how each change fits into the operation.

One developer, accountable for how the whole system works together.

Explore the FrotiX Demo →
ROLE — Sole developer
SCOPE — Web · Mobile · Data
STATUS — In production
[X]
Vehicles managed
[X]
Trips per month
[X]
Drivers
1
Developer, every layer
SECURE CONNECTIVITY

Field apps in .NET MAUI connect to the on-premises backend, keeping the same fleet data live on mobile and in the office.

AUTOMATED NOTIFICATIONS

Event-driven alerts over the WhatsApp Business API (Meta) keep drivers and managers in the loop automatically.

FAST DATA LAYER

A SQL Server layer tuned with indexed views serves heavy grids and dashboards instantly, even over large operational datasets.

RICH UI COMPONENTS

Dozens of data-dense screens built on the Syncfusion suite — grids, schedulers, PDF viewers and reports — tuned for real operational use.

Screens — real captures to be added
SCREENSHOT — 01
Dashboard
SCREENSHOT — 02
Trip schedule
SCREENSHOT — 03
Mobile app · MAUI
FrotiX The real application, running live on anonymized data. Sign in to explore it: Ponto p_100000  ·  Password Demo@2026! Open full screen ↗
/ 04 · Technical Stack

The tools behind the systems

The goal is not to use more technology. It is to choose tools that fit the application and remain practical to deploy, maintain, and extend.

Web

C# ASP.NET Core Razor Pages Blazor Server Blazor WebAssembly JavaScript

Mobile

.NET MAUI MAUI Blazor Hybrid

Android and iOS from one C# codebase, shared with the web — from device to server.

Data

SQL Server Entity Framework Core Indexed views

UI components

Telerik Syncfusion

Deep experience with the two leading commercial .NET component suites — data grids, schedulers, charts, PDF and dashboards in real production systems.

I approach technology choices as long-term commitments: they need to make sense for today’s requirements and for the people who will maintain the system tomorrow.

/ 05 · Explore the Apps

See how the applications work

Explore the interfaces, follow the workflows, and see where AI fits into each product.

Some browser demos use sample data or simulated interactions. Each app page explains what is available in the preview and which features require the Android/iOS app.

ANDROID/iOS APPS

delgadodev.works/tracklist-demo Live demo
ANDROID/iOS · MAUI ✳ AI RECOMMENDATIONS

TrackList

Your viewing history, turned into new recommendations.

Keep track of the movies and series you’ve watched, then explore AI-powered suggestions for similar titles. A personal catalog with recommendations built into the experience. Explore TrackList

Loading the live app… The Android/iOS app — .NET MAUI Blazor Hybrid, running live in your browser.
Try the Demo ↗
delgadodev.works/gravatorio-demo Live demo
ANDROID/iOS · MAUI ✳ AI TRANSCRIPTS & DOCUMENTS

Gravatório

AI-assisted documentation. Professional review.

Record consultations, produce transcripts with speakers identified, and create AI-assisted draft notes using your own templates. The professional reviews and approves each document before it is finalized. Explore Gravatório

Loading the live app… The Android/iOS app — .NET MAUI Blazor Hybrid, running live in your browser.
Try the Demo ↗
delgadodev.works/questor-demo Live demo
ANDROID/iOS · MAUI ✳ AI-GENERATED FLASHCARDS

Questor

Turn exam questions into focused review.

Prepare for Brazilian civil-service exams with AI-generated true-or-false flashcards based on real questions. Track your performance and revisit mistakes to focus your review where it matters. Explore Questor

Loading the live app… The Android/iOS app — .NET MAUI Blazor Hybrid, running live in your browser.
Try the Demo ↗
delgadodev.works/parlatorio-demo Live demo
ANDROID/iOS · MAUI ✳ REAL-TIME AI TRANSLATION

Parlatorio

Different languages. A shared conversation.

Communicate across languages through translated voice, video, and chat, with captions to support the conversation. Explore Parlatorio

The browser preview includes simulated chat. Live voice and video translation require the Android/iOS app.

Loading the live app… The Android/iOS app — .NET MAUI Blazor Hybrid, running live in your browser.
Try the Browser Demo ↗
/ 06 · Let’s Talk

What does your business need
its software to do?

Tell me what you need to build, what is already in place, and where the difficulties are.

Whether the next step is a new application, an existing system that needs attention, or a practical use for AI, the conversation starts with your operation and your priorities.

A useful first conversation starts with the problem, not a technology chosen in advance.

Discuss Your Project →

…or Start a Translated Chat.

Elsewhere
UTC−3

Based in Brasília, Brazil · UTC−3
My spoken English is limited. For conversations in other languages, I use AI-assisted translation.

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