I'm a Senior Software Engineer with over 25 years of experience designing and coding large, high-performance systems for corporate environments. I am a full-stack programmer with strong skills across Windows, Linux, and Unix, proficient in .NET/.NET Core, Ruby, C/C++, Java, JavaScript, and TypeScript, which enables me to build complete, cross-platform solutions that meet user and business needs. I continually explore new technologies and best practices to deliver innovative, high-quality software. Throughout my career I have led solo projects and collaborated in cross-functional teams, applying methodologies such as Domain-Driven Design, Event-Driven Development, Clean Architecture, Clean Code, SOLID, TDD, CI/CD, and design patterns. Examples include desktop apps with accessibility features, security systems integrated with SAP, mobile rewrites from PalmOS to C++, energy-reading systems with Xamarin, and data-communication libraries for satellite networks.

Délio Carvalho

I'm a Senior Software Engineer with over 25 years of experience designing and coding large, high-performance systems for corporate environments. I am a full-stack programmer with strong skills across Windows, Linux, and Unix, proficient in .NET/.NET Core, Ruby, C/C++, Java, JavaScript, and TypeScript, which enables me to build complete, cross-platform solutions that meet user and business needs. I continually explore new technologies and best practices to deliver innovative, high-quality software. Throughout my career I have led solo projects and collaborated in cross-functional teams, applying methodologies such as Domain-Driven Design, Event-Driven Development, Clean Architecture, Clean Code, SOLID, TDD, CI/CD, and design patterns. Examples include desktop apps with accessibility features, security systems integrated with SAP, mobile rewrites from PalmOS to C++, energy-reading systems with Xamarin, and data-communication libraries for satellite networks.

Available to hire

I’m a Senior Software Engineer with over 25 years of experience designing and coding large, high-performance systems for corporate environments. I am a full-stack programmer with strong skills across Windows, Linux, and Unix, proficient in .NET/.NET Core, Ruby, C/C++, Java, JavaScript, and TypeScript, which enables me to build complete, cross-platform solutions that meet user and business needs. I continually explore new technologies and best practices to deliver innovative, high-quality software.

Throughout my career I have led solo projects and collaborated in cross-functional teams, applying methodologies such as Domain-Driven Design, Event-Driven Development, Clean Architecture, Clean Code, SOLID, TDD, CI/CD, and design patterns. Examples include desktop apps with accessibility features, security systems integrated with SAP, mobile rewrites from PalmOS to C++, energy-reading systems with Xamarin, and data-communication libraries for satellite networks.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
See more

Language

Portuguese
Fluent
English
Advanced
Spanish; Castilian
Advanced

Work Experience

Senior Software Engineer at Crescer Technology
January 1, 2022 - Present
Developing and maintaining web applications using Ruby on Rails, React, and Node.js; introduced Clean Architecture across multiple projects to improve modularity and maintainability; actively participating in agile sprints and code reviews; driving modernization efforts to align with market demands.
Senior Multilingual and Multiplatform Software Engineer at Companhia Energética de Minas Gerais – Cemig
January 1, 2000 - December 31, 2022
Designed and developed systems to manage generation, transmission, and distribution of electric energy; created cross-platform solutions ensuring accessibility and reliability; contributed to technological innovations to optimize processes and grid operations.
Senior Software Engineer at AXXIOM – Tecnologia e Inovação
January 1, 2008 - December 31, 2011
Modeled and developed customized systems for electric power sector; provided technical and strategic consulting; integrated existing systems with new technologies to modernize infrastructures and improve operational efficiency.
Professor of Web Development Training at UNIR – Professional Courses
January 1, 2000 - December 31, 2003
Taught Web Developer Training courses covering Full Stack disciplines (C#, ASP.NET, HTML, JavaScript, CSS, SQL Server); developed curricula and materials and mentored students for job-market readiness.

Education

Electrical Engineering with emphasis in Computer Science (not completed) at Pontifical Catholic University of Minas Gerais
January 1, 1993 - December 31, 1997
Software Engineering at UNIBH College
January 1, 2002 - December 31, 2005
Postgraduate degree in Artificial Intelligence at Course in progress
January 11, 2030 - October 1, 2025

Qualifications

Microsoft Certified: Power Platform Developer Associate (PL-400)
January 11, 2030 - June 16, 2026
Microsoft Azure Fundamentals – AZ-900
January 11, 2030 - June 16, 2026
.NET AI with ASP.NET, Deep Seek, Ollama, Open WebUI, OpenAI and ChatGPT to build smart apps with AI
January 11, 2030 - January 1, 2025
Mastering Docker: From Installation to Docker Compose
January 11, 2030 - January 1, 2022
Mastering .NET API Focusing Azure, DevOps, DDD, REST, SCRUM, SOLID, Pipelines, Dependency Injection and Dependency Inversion
January 11, 2030 - January 1, 2024
Mastering Clean Architecture Essential with .NET Core, Applying DRY, YAGNI, KISS and DDD Concepts
January 11, 2030 - January 1, 2024
Developing REST / RESTful API with Ruby on Rails
January 11, 2030 - January 1, 2022
Developing REST APIs: Patterns, Building, Testing and Solutions
January 11, 2030 - June 16, 2026
ASP.net Core MVC com Azure
January 11, 2030 - June 16, 2026

Industry Experience

Energy & Utilities, Healthcare, Software & Internet, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
See more

Hire a Full Stack Developer

We have the best full stack developer experts on Twine. Hire a full stack developer today.