Foto de Caleb

Caleb Toledo

Systems Analysis Student | Backend developer Jr.

LinkedIn GitHub resume

Who am I?

Hi! I'm Caleb, a Systems Analysis student from Argentina with a strong focus on backend architecture and software quality (QA). I've been programming for over 2 years, building robust logic and systems. I'm currently focused on C#, .NET, and SQL, while applying problem-solving skills to ensure data integrity. With a solid base in web technologies and a B1 level of English, I can easily work in international teams. I'm actively looking for my first opportunity in Testing or QA to apply my analytical skills and help deliver flawless software.

My Skills

C# .NET · Visual Studio
SQL PostgreSQL · Oracle · SSMS · MySQL
HTML
CSS
JavaScript
Git
GitHub
docker

Proyects

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Clean E-commerce API

C# | .NET 9 | SQL Server | Docker | RabbitMQ A high-performance REST API built with Clean Architecture and Event-Driven principles. Features scalable order management using MassTransit, asynchronous messaging, and a robust CI/CD pipeline with GitHub Actions. Unit testing with xUnit and structured logging with Serilog.

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Billing System Backend (ARCA)

C# | Entity Framework Core | SQL | A backend system simulating real-world billing operations. Focused on complex CRUD management, relational data integrity, and strict business logic validations.

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LDK Rotiseria - ERP & POS System

C# | .NET 8 | Blazor | SQLite | Entity Framework Core | MudBlazor | A full-stack, On-Premise Point of Sale and management system developed for a real-world gastronomic business. Designed to operate on a local network (LAN) with zero cloud costs. Features real-time order processing, automated stock tracking, client debt management, and a dynamic financial dashboard.

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TravelPlan - Trip Organizer

A responsive web application focused on client-side logic and budget calculation. Features expense tracking, task categorization, and dynamic DOM manipulation to manage user inputs and UI states effectively without frameworks.

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Productivity Dashboard & Task Manager

JS | DOM Manipulation | HTML/CSS | A comprehensive frontend productivity tool built entirely with JavaScript. Features a task management system, Pomodoro timer, and simulated authentication flow, focusing on complex UI state management and client-side logic.

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