Diego S. Silva

Available to hire

Commitment and quality in every delivery. Senior C#/.NET developer with 15+ years of experience in web and enterprise applications.

About

Commitment and quality in every delivery.

Senior C#/.NET developer with 15+ years of experience in web and enterprise applications. I help with bug fixes, REST API development and integration, SQL performance, Angular features and legacy .NET modernization.

Core technologies: C#, .NET, ASP.NET Core, MVC, Entity Framework, Dapper, SQL Server, PostgreSQL, Angular, JavaScript, TypeScript, SignalR, Azure and Docker.

Experience includes insurance platforms, CRM integrations, corporate intranets and VirtualDesk, a .NET Core/Angular service desk platform. At Avivatec I worked on .NET/Angular systems and a Microsoft Graph/AI meeting transcription proof of concept; at Bit Seguros on APIs, insurer integrations and backends.

I start with clear scope and acceptance criteria, communicate progress and provide validation notes and handover guidance for agreed deliverables. Native Portuguese, intermediate English.

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  • Joined October 2026

Languages

  • PortugueseFluent
  • EnglishIntermediate

Industry experience

  • Financial Services
  • Software & Internet

More experts

Projects · 1

ChatTrade — C#/.NET Chat and Integration Prototype

Development prototype for real-time chat and customer-service workflows. The C#/.NET codebase separates Domain, Application and Infrastructure layers, with REST APIs, public and admin MVC interfaces, PostgreSQL, EF Core and Dapper. It includes SignalR/JWT examples, transaction commit/rollback examples and adapters for WhatsApp and voice providers. Docker Compose supports local setup. Several integrations default to mock mode. This entry presents the prototype architecture; the source repository remains private. The cover is an architecture overview, not a screenshot of a production deployment.

  • Full Stack Developer

Work experience· 4 roles

Senior .NET / C# Developer — Angular · AvivatecMay 2023 – Present · 3 yrs 7 mos

Development and maintenance of enterprise C#/.NET applications and Angular features, including corporate intranet and business systems. Built a proof of concept using Microsoft Graph and AI to retrieve Teams meeting audio, transcribe it and generate meeting notes.

Full Stack .NET Core and Angular Developer · Virtual ConnectionApr 2020 – Apr 2023 · 3 yrs 1 mo

Architecture and development of VirtualDesk, a .NET Core and Angular service desk platform with configurable service structures and dynamic reporting. Developed features and integrations for the S4.Collection CRM.

Senior .NET Developer / Analyst — Team Lead · Bit SegurosJun 2016 – Feb 2020 · 3 yrs 9 mos

Developed APIs, backend services and insurer integrations for insurance sales platforms. Worked on electronic signatures with CertiSign, commission structures and sales portal modules, including life, residential, business, events and travel insurance products.

Software DeveloperJan 2008 – Jan 2016 · 8 yrs 1 mo

Education

Analysis and Systems Development · Unopar2012 – 2014

Análise e Desenvolvimento de Sistemas, 2012–2014. Dates supplied at year precision.

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