David A. Brook
San Leandro
Summary
Accomplished Senior Full Stack ASP.NET Engineer with extensive experience at Healthcare Finance Direct, specializing in RESTful API development and Agile methodologies. Proven track record in enhancing application security and user experience, leveraging skills in C# .NET Core and Angular to deliver high-quality FinTech solutions. Strong collaborator with a focus on achieving project excellence.
Overview
17
17
years of professional experience
1
1
Certification
Work History
Senior Full Stack ASP.NET Engineer
Healthcare Finance Direct
06.2024 - 05.2025
- Engineered and sustained enterprise FinTech applications for dental care providers utilizing C# .NET Core 9 Web API, Angular, and Clean Architecture with CQRS.
- Designed and integrated RESTful API calls in Angular for dynamic data retrieval and display.
- Constructed API endpoints for commands, services, and repositories with thorough NUnit testing.
- Enhanced user experience by enabling provider selection via URL parameters and rectifying UI bugs.
- Implemented secure SSN update functionality with robust validation logic.
- Developed job schedulers for application notifications utilizing Cron and Hangfire.
- Augmented web forms with DevExpress controls.
- Facilitated Agile ceremonies, conducted code reviews, and tested endpoints with Postman and Swagger.
Senior Full Stack ASP.NET Core Engineer
LCP Tracker
10.2023 - 05.2024
- Refined payroll applications (LcpTracker, LcpCertified) employing C# 8.0, MVC, API, LINQ, Entity Framework, NUnit, and Angular.
- Implemented authentication features in React, including Single Sign-On (SSO), login, and logout functionalities.
- Fortified application security by addressing SQL injection vulnerabilities.
- Excelled in Agile/Kanban Azure DevOps environment, consistently achieving project deadlines and quality benchmarks.
Senior .NET Engineer
Insitu (a Boeing Subsidiary)
04.2023 - 10.2023
- Developed mission-critical software for aircraft utilizing Aras Innovator, C#, JavaScript, and SQL Server.
- Integrated C# and Python for automation of Confluence applications.
- Enhanced security with DPAPI encryption in C#.
- Rapidly adopted new technologies, delivering proof-of-concept and production implementations.
Senior .NET Engineer
Mygrant Glass
Hayward
01.2021 - 02.2023
- Developed EDI processor in C# for parts distribution, facilitating ordering, shopping, and invoicing.
- Enhanced Daybreak Java application with inventory tracking and reporting features utilizing SQL Server.
- Collaborated with CTO and senior leads to upgrade mission-critical applications.
Embedded Engineer
Smart-Tecs
San Leandro
10.2019 - 12.2020
- Developed mission-critical C# .NET Core applications for import/export logistics.
- Constructed audio configurations with multiple codecs and transport protocols (HTTP, TCP, UDP, PCM, MuLaw).
- Developed and integrated plugin/DLLs for Sapera line-scan cameras and Zebra/Barix printer systems.
Full Stack .NET Engineer
Cognizant
Sacramento
08.2010 - 09.2019
- Developed and maintained web and WinForms applications for search, administration, and reporting using C#, ASP.NET, MVC, and SQL Server.
- Enhanced user interfaces with Add, Edit, View, Delete, and Search functionalities.
- Constructed claims and search applications utilizing MVC, Razor, TypeScript, and jQuery.
- Implemented security encryption for passwords and database connections to protect sensitive information.
.NET Engineer
Old Republic Title
Roseville
03.2008 - 07.2010
- Developed document/image retrieval and management systems in C#, addressing complex legal and business logic.
- Automated PDF/TIFF OCR processing and barcode-based document separation.
- Constructed subpoena tracking application in ASP.NET with advanced forms and data access layers utilizing Telerik controls.
Education
Bachelor of Science - Software Engineering
California State University
Sacramento, CA06.2007
Skills
- ASPNET Core and NET Framework
- RESTful API development
- Microservices architecture
- Dependency injection techniques
- Entity Framework and LINQ
- SQL Server database design
- XML serialization and file I/O
- JavaScript and TypeScript
- HTML5, CSS, and Bootstrap
- React and Angular frameworks
- JWT authentication methods
- WCF services and web applications
- Console and WinForms applications
- Docker containerization
- CORS implementation strategies
- Unit testing with Moq, Xunit, and NUnit
- Automated testing with Selenium and PhantomJS
- Version control with Git and TFS
- Azure DevOps for CI/CD
- Agile methodologies including Scrum and Kanban
- DevExpress components and Hangfire scheduling
Certification
- A+ Certification
- CBEST Certification
Accomplishments
Switzer Scholarship for Outstanding Music Performance
National Science Foundation Scholarship for Outstanding Academia
Academy for Computing Machinery 1st Place Software Engineering Contest
References
References available upon request.
Timeline
Senior Full Stack ASP.NET Engineer
Healthcare Finance Direct
06.2024 - 05.2025
Senior Full Stack ASP.NET Core Engineer
LCP Tracker
10.2023 - 05.2024
Senior .NET Engineer
Insitu (a Boeing Subsidiary)
04.2023 - 10.2023
Senior .NET Engineer
Mygrant Glass
01.2021 - 02.2023
Embedded Engineer
Smart-Tecs
10.2019 - 12.2020
Full Stack .NET Engineer
Cognizant
08.2010 - 09.2019
.NET Engineer
Old Republic Title
03.2008 - 07.2010
Bachelor of Science - Software Engineering
California State University
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