Lucas Paineli Gimenes
Fullstack .NET Developer | C#, ASP.NET Core, Oracle | REST APIs · Clean Architecture · AI in the workflow
Fullstack .NET Developer with 6 years in technology, working with C#, ASP.NET Core, .NET Framework and Oracle Database in healthcare web systems that need to run all the time.
// skills
// projects
I built lawllit.finance as a side project, a personal finance app to track income, expenses, and live exchange rates. Free to try.
.NET 10 · Minimal API · Dapper · PostgreSQL · JWT · Google OAuth · Chart.js · Docker · Railway
small tools built to solve real problems.
// experience
I develop and maintain healthcare web systems in C# and .NET, working daily across the full stack from the data layer to the front-end.
- Back-end development in C# with ASP.NET Core and .NET Framework, applying Clean Architecture, SOLID and Design Patterns.
- Building and consuming REST APIs integrated with clinical and operational workflows.
- Writing and optimizing queries, stored procedures, triggers and PL/SQL functions on Oracle Database.
- Front-end development with HTML5, CSS3, JavaScript, Bootstrap and Razor.
- Participating in code reviews with the team.
- Using GitHub Copilot, Claude and Cursor in the daily workflow to speed up and review code.
- Version control with Git, TFS and Azure DevOps.
Stack: C# · ASP.NET Core · .NET Framework · Oracle Database · SQL/PL/SQL · REST APIs · HTML5 · CSS3 · JavaScript · Bootstrap · Razor · Azure DevOps · Git · TFS
Administration of hospital PACS, RIS and HIS systems, focused on Oracle database and advanced technical support in production.
- Wrote and optimized SQL and PL/SQL scripts for process automation and data extraction.
- Worked on query performance in high-volume data environments.
- Acted as N3 escalation point for complex integration and performance failures.
- Assisted in the administration of Linux and Windows servers, including recovery routines.
- Accompanied the team and vendors during upgrades and patch deployments.
Stack: Oracle Database · SQL/PL/SQL · Linux · Windows Server
N2 and N3 technical support for over 300 healthcare professionals in a high-availability environment.
- Diagnosed and resolved incidents related to medical image viewing, storage and transmission.
- Configured and maintained workstations and imaging modalities, including CT, MRI and X-Ray.
- Assisted in the administration of Linux and Windows servers.
N1 and N2 technical support, installation and maintenance of internal systems, basic Windows Server and Active Directory administration.
// about
Day-to-day I work across the full stack: data modeling and optimization in Oracle with SQL and PL/SQL, building and consuming REST APIs, and front-end development with HTML5, CSS3, JavaScript, Bootstrap and Razor. I apply Clean Architecture, SOLID and Design Patterns, participate in code reviews, and version control via Git and Azure DevOps.
I use AI seriously at work: GitHub Copilot, Claude and Cursor are part of my daily flow for writing, reviewing and debugging code faster. Not as a replacement for thinking, but as a tool that speeds up delivery without compromising quality.
I hold a Specialization in Software Architecture from Facens (GPA 9.6/10) and an Executive MBA in Business Management from FGV (GPA 9.22/10). I'm looking for a mid-level or software engineer position in .NET, preferably at companies with larger data volumes and systems with critical availability requirements.
// education
academic
certifications
languages
// contact
Sorocaba, São Paulo