Sosa Sofía
Full Stack Developer
Software Developer with experience building robust web applications. Skilled in C#, ASP.NET Core, SQL Server, and React/Angular. Dedicated to applying SOLID principles and mastering new technologies to deliver high-quality solutions
Skills & Technologies
Backend Development
Frontend Development
Cloud & DevOps
AI, Architecture & Testing
Projects
Scalable financial system built on a Clean Architecture monorepo. Features a .NET 8 REST API with Google OAuth, an Angular UI using NgRx Signals, and an Azure AI-powered receipt scanner. Deployed via automated CI/CD.
Angular 19 | NgRx Signals | .NET 8 | Clean Architecture | Azure AI | Google OAuth
AI-powered educational platform utilizing a hybrid RAG architecture. Leverages a .NET 10 backend and SQL Server to pre-filter vector data by student history, ensuring accurate, hallucination-free Azure OpenAI responses in the React UI.
React | .NET 10 | SQL Server | Azure OpenAI | RAG | Vector Search | Clean Architecture
AI-powered resume matching and tailoring application. Features a FastAPI Python backend, a React UI, and Azure OpenAI integration to automate data extraction, matching, and dynamic resume rewriting.
React 19 | TypeScript | FastAPI | Python | Azure OpenAI | Docker
Full-stack group expense tracker with complex debt calculation logic. Features Clerk authentication, a custom PIN-based guest mode, and a one-click demo generator for frictionless onboarding.
Next.js | Tailwind CSS | Clerk | Prisma |• PostgreSQL
High-performance full-stack URL shortener built with Next.js. Features secure user authentication, database integration, and a responsive Tailwind CSS interface.
Next.js | Tailwind CSS | Prisma | PostgreSQL | Clerk
Professional Experience
Backend Developer Trainee
Aug 2024 - Nov 2025KopiusTech
- Won 1st place in the annual company hackathon by architecting an AI-powered corporate chatbot using Node.js, Azure OpenAI, and RAG architectures.
- Engineered scalable C#/.NET RESTful APIs and designed SQL Server schemas from scratch.
- Deployed and configured cloud infrastructure using Microsoft Azure (App Service, SQL Database).
- Collaborated within a cross-functional Agile team, applying SOLID principles and JWT security for robust architecture.
Education
University Degree in Engineering
In ProgressUTN FRBA
Specialized in Information Systems, focusing on software architecture, algorithms, and systems design.