Lucas

Through his company, he works with IT services remotely across the globe, helping business partners achieve their goals, including:

• Software Architecture / Development;
• DevOps / DevSecOps / Pentest;
• Database Administration / Tuning;
• Cloud Administration;
• Training / Consulting;

Responsible for the software architecture and code design, migrating large legacy web applications from WebForms (with more than 1000 tables) to WebAPI. Structured the infrastructure on Azure, including App Service Plans auto-scaling, SQL Server Managed Instances with backup policies, Virtual Machines, Azure Functions, Azure WebJobs, Azure FrontDoor as Web Firewall, Azure Application Insights to have SLA reports of uptime and performance monitoring and unexpected exceptions, doing reservations to decrease costs in the long term.

• Utilized hexagonal architecture with CQRS, Specifications for user cases, Entity Framework and Dapper as ORM, nUnit with nSubstitute for unit tests, wrapping and cross-cutting legacy code from the new code, Angular with Material Design
  and RxJS for reactive UI
• Setup Azure DevOps automating tasks with PRs (pull requests) and code quality gateways with SonarCloud and Snyk, using CI (continuous integration) and CD (continuous delivery) to deploy into dev/vnext/stage/prod environments
• Led a team of 20 developers (front-end, back-end, and full-stack)
• Convert a huge monolith stateful into a Multi-Tenant WebApp
• Convert a huge monolith WebForms into Angular with ASP.NET WebAPI

Refactored old code and created new features on the system for the healthcare industry. Designed and implemented software solutions by taking technical requirements and using best practices for software development and architecture.

• Followed the SOLID principles, hexagonal architecture with CQRS, and ASP.NET Core 5 MVC as backend
• Utilized SQL Server as the database, Entity Framework and Dapper as ORM
• Built and managed Azure Functions for serverless, NUnit for testing, Bitbucket as GIT repository, Kudu on Azure for CI/CD, and Jira for sprint management.

Developed a new EMR module inside of an existing system while integrating with legacy code. Designed and build the solution using SOLID best practices.

• Built the UI using Angular 8, ASP.NET Core 3.0 as API following CQRS pattern, and SQL Server as database.
• Mentored Junior developers and assisted with code reviews as needed.

Refactoring old code and creating new features on the system for the healthcare industry following the SOLID principles and onion architecture. Responsible for technical leadership and software design/development while working with the architecture team.

• Utilized ASP.NET 5 Web API as backend, SQL Server as database, Entity framework as ORM
• Built AngularJS as a front-end framework, Azure WebJobs for routines, Azure Functions for serverless, MS Unit Testing for testing, Azure DevOps to control the sprints defined via scrum, git for source control, and CI/CD to improve our delivery.
• For small parallel systems, used ASP.NET Core 2.2 with Angular 8.

Maintenance of the system for ERP that includes the financial, logistics, trading, and agricultural industries. Utilized best practices and SOLID principles, and oversaw code reviews.

• Built application using ASP.NET 5 MVC for back-end, SQL Server as the database, Entity Framework as ORM, used jQuery to build internal front-end framework.
• Maintenance on the system for ERP that includes financial, logistics, trading, agribusiness using ASP.NET 5 MVC
• Desktop applications using Windows Forms with DevExpress components
• Integrations with WCF and ASMX with Windows Services

• Freelance Developer (2015-2016)
• Co-Owner of WALSAT (2015)
• Senior Software Engineer at InterSystem (2014-2015)
• Middle Software Engineer at InterSystem (2013)
• Junior Software Engineer at InterSystem (2011)