CultivoScan
On-device AI for practical crop disease diagnosis.
My role Mobile & AI
- 900+
- downloads
- 98.9%
- accuracy
- 3
- diseases detected
- Flutter
- Dart
- Firebase
- Python
- YOLO
- TensorFlow Lite
Open to new opportunities
Diego Cuaycal
Software Engineer / Full-Stack & Mobile Developer
I build web, mobile and backend solutions — from idea to deployment — with .NET, React and Flutter. I turn real problems into clean, scalable code.
- 800+
- downloads
- Apps
- in production
- Full-Stack
- + Mobile
San Gabriel, Ecuador 🇪🇨
Technologies and tools
What I use to take an idea from the first line of code to deployment.
01 06 Frontend & Mobile
The interfaces people actually touch: responsive web and cross-platform mobile apps.
- 85% 2+ years
Flutter
Cross-platform mobile apps from a single codebase.
Applied in CultivoScanDataGest
Proficiency
Experience: 2+ years - 85% 2+ years
Dart
Flutter's language: typed, async and compiled to native.
Applied in CultivoScanDataGest
Proficiency
Experience: 2+ years - 70% 1+ years
React
Library for dynamic component-driven interfaces.
Applied in Pórticos 2D
Proficiency
Experience: 1+ years - 55% 1+ years
Angular
Structured SPAs with modules and injectable services.
Proficiency
Experience: 1+ years - 50% 1+ years
Vue.js
Lightweight reactive components for internal views.
Proficiency
Experience: 1+ years - 70% 1+ years
Astro
Fast static sites shipping zero JavaScript by default.
Applied in Este portafolio
Proficiency
Experience: 1+ years - 80% 3+ years
JavaScript
The browser baseline: DOM, events and client logic.
Proficiency
Experience: 3+ years - 75% 2+ years
TypeScript
Static typing that catches errors before production.
Applied in Pórticos 2D
Proficiency
Experience: 2+ years - 90% 3+ years
HTML5
Semantic, accessible markup as the interface foundation.
Proficiency
Experience: 3+ years - 85% 3+ years
CSS3
Modern layouts with Grid, Flexbox and responsive design.
Proficiency
Experience: 3+ years - 75% 2+ years
Bootstrap
Rapid layout work on a proven grid system.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 70% 1+ years
Tailwind CSS
Utility-first styling bound to a token system.
Proficiency
Experience: 1+ years
02 06 Backend & APIs
The business logic and contracts holding the product together underneath.
- 80% 2+ years
.NET 8
High-performance backend with dependency injection.
Applied in DataGest
Proficiency
Experience: 2+ years - 80% 2+ years
C#
My main backend language: strong typing, LINQ and async.
Applied in DataGest
Proficiency
Experience: 2+ years - 75% 2+ years
ASP.NET Core Web API
REST endpoints with middleware and central error handling.
Applied in DataGest
Proficiency
Experience: 2+ years - 75% 2+ years
Laravel
MVC, Eloquent and migrations for complete web platforms.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 70% 2+ years
PHP
Server logic and templating on the UTN platform.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 60% 1+ years
Node.js
Services and build tooling on the JavaScript runtime.
Proficiency
Experience: 1+ years - 55% 1+ years
Express.js
Routes, middleware and light APIs with little ceremony.
Proficiency
Experience: 1+ years - 85% 2+ years
REST APIs
Resources, HTTP verbs and clear client-server contracts.
Applied in DataGestRemoteScope
Proficiency
Experience: 2+ years - 65% 1+ years
JWT
Stateless auth with signed tokens and expiry.
Applied in RemoteScope
Proficiency
Experience: 1+ years - 70% 1+ years
Swagger
Living API docs and endpoint testing from the browser.
Applied in DataGest
Proficiency
Experience: 1+ years - 80% 2+ years
MVC
Model, view and controller with responsibilities apart.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years
03 06 Databases & Cloud
Where the data lives and where the software ends up running.
- 80% 2+ years
SQL Server
Relational modelling and metadata reads for dynamic CRUD.
Applied in DataGest
Proficiency
Experience: 2+ years - 70% 2+ years
PostgreSQL
Advanced relational store for academic data and reports.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 75% 2+ years
MySQL
Schemas and queries behind the UTN academic platform.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 70% 1+ years
SQLite
Local persistence living inside the device itself.
Applied in RemoteScope
Proficiency
Experience: 1+ years - 75% 1+ years
Firebase
Auth, storage and distribution for a shipped mobile app.
Applied in CultivoScan
Proficiency
Experience: 1+ years - 65% 1+ years
Firestore
Real-time NoSQL store synchronised across devices.
Applied in CultivoScan
Proficiency
Experience: 1+ years - 50% 1+ years
Azure
Hosting and scaling .NET services in the cloud.
Proficiency
Experience: 1+ years - 45% 6+ months
AWS
Cloud compute and storage for web workloads.
Proficiency
Experience: 6+ months - 70% 1+ years
Vercel
Continuous deployment from Git with per-branch previews.
Applied in Este portafolio
Proficiency
Experience: 1+ years - 55% 1+ years
Netlify
Static site hosting with automatic builds.
Proficiency
Experience: 1+ years
04 06 Artificial Intelligence
Computer vision taken to the pocket, with no dependency on the cloud.
- 75% 1+ years
YOLO
Detection models trained and optimised to run in real time.
Applied in CultivoScan
Proficiency
Experience: 1+ years - 70% 1+ years
TensorFlow Lite
Models converted and quantised to run on the phone.
Applied in CultivoScan
Proficiency
Experience: 1+ years - 70% 2+ years
Python
Training, data preparation and exporting of the models.
Applied in CultivoScan
Proficiency
Experience: 2+ years
05 06 Architecture & Testing
The decisions that keep the codebase maintainable six months from now.
- 75% 2+ years
Clean Architecture
Domain at the centre, dependencies pointing inward.
Applied in DataGest
Proficiency
Experience: 2+ years - 80% 2+ years
SOLID
Five principles that keep classes small and substitutable.
Proficiency
Experience: 2+ years - 80% 2+ years
Clean Code
Honest names, short functions and friction-free reading.
Proficiency
Experience: 2+ years - 80% 2+ years
Arquitectura MVC
Pattern applied end to end in Laravel and ASP.NET Core.
Applied in EduPlay · UTN
Proficiency
Experience: 2+ years - 75% 2+ years
Arquitectura por capas
Presentation, application, domain and infrastructure apart.
Applied in DataGest
Proficiency
Experience: 2+ years - 60% 1+ years
Unit Testing
Tests that guard the logic every time it gets refactored.
Proficiency
Experience: 1+ years - 60% 1+ years
C# Testing
xUnit and test doubles for services and controllers.
Proficiency
Experience: 1+ years - 75% 2+ years
Ingeniería de Requerimientos
Elicitation, specification and traceability before coding.
Proficiency
Experience: 2+ years
06 06 DevOps & Tools
From commit to deployment, plus the day-to-day tooling of working in a team.
- 85% 3+ years
Git
Branching, rebasing and conflict resolution as a daily routine.
Proficiency
Experience: 3+ years - 85% 3+ years
GitHub
Repositories, pull requests and code review.
Proficiency
Experience: 3+ years - 65% 1+ years
GitLab
Private repositories and pipelines in institutional setups.
Proficiency
Experience: 1+ years - 60% 1+ years
Docker
Reproducible container environments, identical everywhere.
Proficiency
Experience: 1+ years - 40% 6+ months
Kubernetes
Container orchestration, replicas and scaling.
Proficiency
Experience: 6+ months - 60% 1+ years
CI/CD
Automatic build, test and deploy on every push.
Applied in Este portafolio
Proficiency
Experience: 1+ years - 80% 2+ years
Postman
Collections to test and document an API before wiring it up.
Applied in DataGest
Proficiency
Experience: 2+ years - 70% 1+ years
Linux
Terminal administration and service deployment.
Applied in GLPI · Mutualista Imbabura
Proficiency
Experience: 1+ years - 70% 2+ years
Scrum
Sprints, dailies and incremental delivery with review.
Proficiency
Experience: 2+ years - 70% 2+ years
Kanban
Visual work flow and control of what is in progress.
Proficiency
Experience: 2+ years - 65% 2+ years
Figma
Prototypes and design systems before writing the interface.
Proficiency
Experience: 2+ years - 50% 1+ years
Power BI
Dashboards and reports built from operational data.
Proficiency
Experience: 1+ years
Featured projects
Four real problems, from AI crop diagnosis to Android telemetry.
DataGest
Administrative interfaces generated from a database's live structure.
- Flutter
- .NET 8
- C#
- SQL Server
My role Full-stack
Turns SQL Server metadata into working CRUD interfaces without duplicating modules.
EduPlay
Interactive assessments that turn participation into actionable insight for teachers.
- Laravel
- PHP
- PostgreSQL
- Bootstrap
My role Full-stack
Assessments, rankings and academic tracking in one workflow.
Access is available only through UTN's institutional network
RemoteScope
An Android phone turned into a lightweight telemetry server.
- Kotlin
- Android
- SQLite
- NanoHTTPD
- REST API
My role Android
The REST API runs directly on the Android device.
Available for new opportunities
Contact
Do you have a job opportunity, proposal, or project? I'm available for new opportunities and professional collaborations.