Looking for a job

Franco Sassi

@francosassi

Message

I build scalable full-stack applications, APIs, microservices, and AI-powered systems.

Argentina

Message

What I'm looking for

I'm looking to build scalable full-stack, backend, cloud, or AI-powered products with Agile teams, where I can work on modern architecture, system integrations, testing, CI/CD, and continuous technical growth.

I'm leading the modernization of Expreso Brio's 12-module logistics system from Visual Basic to a scalable React and .NET 8 architecture. I also automated electronic invoice generation through AFIP integration, eliminating manual billing tasks.

I've built REST APIs, microservices, and production web applications for TechX, Yamana Tech, and Nash v2 using C#, ASP.NET Core, Node.js, Python, React, Angular, SQL Server, PostgreSQL, and MongoDB. My work has improved municipal system response times by approximately 30% and interface load times by approximately 25%.

I also build cloud-native e-commerce and AI applications using Docker, AWS, Kubernetes, CI/CD, RAG, LLMs, and agent workflows.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Expreso Brio

May 2025 - Present (1 year 5 months)

Leading migration of a 12-module legacy logistics system from Visual Basic to a scalable architecture using React, Redux Toolkit, Tailwind CSS, C#, .NET 8, ASP.NET Core, Entity Framework Core, and SQL Server. Designed and implemented AFIP integration automating electronic invoice generation, and developed secure REST APIs with automated testing and CI/CD practices.

React Redux toolkit Tailwind C#.NET 8+ASP.NET Core Entity Framework SQL Server Clean Architecture SOLID Design Patterns REST APIs JWT Dependency Injection xUnit Docker Azure CI CD

Backend Developer

Yamana Tech

Jan 2025 - Apr 2025 (3 months)

Optimized 25+ SQL Server queries, reducing response times by approximately 30% across municipal systems used by 7 municipalities. Contributed to the migration of 5 modules from Visual Basic to .NET, performing debugging, issue resolution, and code reviews.

.NET SQL Server

Freelance Frontend Developer

Nash

Nov 2024 - Jan 2025 (2 months)

Developed 20+ reusable React components and integrated REST APIs, reducing code duplication and facilitating the development of new features. Implemented AWS infrastructure using Terraform (IaC), automating resource provisioning and standardizing deployment.

AWS React Redux

Freelance Frontend Developer

techxmx

May 2023 - Oct 2024 (1 year 5 months)

Reduced load times by ~25% across React, Angular, and TypeScript applications. Developed REST APIs, WebSockets, and microservices using Java/Spring Boot, Python, and Node.js. Integrated payment services and contributed to testing, code reviews, and CI/CD.

Redux Python Java NodeJS