Looking for a job

Matheus Bonafine

@matheusbonafine

Message

I build scalable .NET backend systems and AI-powered e-commerce workflows.

Brazil

Message

What I'm looking for

I'm driven to tackle complex backend challenges at scale, delivering robust, high-performance systems while mentoring engineering teams and advancing AI-first development practices.

At Ybera Paris, I lead a backend engineering squad building scalable .NET/C# systems for a high-demand e-commerce platform.

I've architected and optimized REST APIs, modernized legacy codebases to .NET 8+, and guided architectural decisions, code reviews, sprint planning, and engineering best practices.

I led production AI integrations with Semantic Kernel and Azure OpenAI, including automated pull-request code review, chatbot experiences, and intelligent workflows. I also built a Python chatbot that provides product insights, tailored recommendations, and affiliate selling flows.

I strengthen cloud-native delivery through Azure, CI/CD security with Key Vault, observability with New Relic, and mentoring on DDD, CQRS, event-driven architecture, and microservices.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer .NET / Backend Squad Lead

Current

Ybera Paris

Aug 2021 - Present (5 years 1 month)

Leading a backend engineering squad, responsible for architectural decisions, code reviews, sprint planning, technical mentoring, and driving engineering best practices. Architected and optimized REST APIs in .NET/C# supporting a high-demand e-commerce platform, improving performance and scalability under peak traffic loads.

.NET C#REST APIs Azure OpenAI Semantic Kernel RAG Python New Relic Azure Key Vault CI CD DDD CQRS Event Driven Architecture Microservices .NET 8+

FullStack Developer

Nivello

Aug 2021 - Dec 2021 (4 months)

Contributed to legacy system modernization using .NET Framework, jQuery, and React, gaining full-stack exposure before transitioning to a specialized backend role.

.NET Framework jQuery React