Software Developer Senior

Cesar Giacumbo

Senior Software Developer

San Diego, CA 91915

619*-***-**** • ******@*****.***

Professional Summary

Experienced Full Stack Software Developer with a strong focus on .NET-based web applications, backend development, and data integration. Developed and maintained systems across the banking, mortgage, healthcare, Department of Defense (DoD), and financial industries using technologies including ASP.NET (Core and Framework), C#, SQL Server, along with front-end tools such as React and Bootstrap.

Work Experience

Senior Web Developer Advisor

General Dynamics IT – San Diego, CA

Mar 2016 – Present

Built Total Workforce Management System (TWMS) modules (Self-Service, Work History, Training Requests, Pre-recruitment, Billet & Manpower Management) using ASP.NET Core, ASP.NET Framework, Web Forms, MVC, Razor, Web Forms, JavaScript, React and SQL Server

Designed RPA tracking integrated with DMDC using RESTful APIs and JWT authentication

Developed DEERS/DMDC data services processing 4M+ records weekly

Modernized five NCIS web applications, improving compliance and uptime

Created responsive UIs using Bootstrap, Razor Views, and JavaScript

Maintained CI/CD pipelines via Azure DevOps and Git

Technologies: C#, SQL, ASP.NET Core, MVC, Razor, Web Forms, REST APIs, SQL Server, React, JavaScript, jQuery, Bootstrap, JSON, Ajax, Entity Framework, Git, Azure DevOps, LINQ, Reporting Services, SFTP, Bootstrap, Multithreading

Senior Software Developer

Serco Inc – San Diego, CA

Dec 2011 – Mar 2016

Supported US Navy mission readiness systems using ASP.NET Framework, MVC, Web Forms, SQL Server

Developed ship readiness assessment tools and integrated 30+ ships into the TORIS platform

Refactored legacy code and improved UIs using Bootstrap and jQuery

Technologies: C#, ASP.NET Framework, MVC, Razor, Web Forms, SQL Server, JavaScript, jQuery, Ajax, LINQ, Azure DevOps, Bootstrap

Extended Project Experience as .Net Senior Developer via (RK Consulting LLC)

Humana – San Diego, CA

Developed .NET-based applications and services for healthcare program integration (Wounded Warrior, Designated Provider Network). Utilized network programming, multithreading, C#, ASP.NET, AJAX, and MVC, JQuery, Windows Services.

City National Bank – Los Angeles, CA

Built internal tools using ASP.NET Web Forms and SQL Server with secure workflows for transactions and reporting.

XP Systems – Los Angeles, CA

Developed backend logic for credit and loan platforms, including eligibility scoring and audit processing.

PacifiCare – Cypress, CA

Develop web applications maintaining HIPAA-compliant claims/enrollment systems, optimizing performance for large-scale healthcare operations.

Education & Certifications

B.S. in Computer Science – San Diego State University

Java Programming & Network Development – UC San Diego Extension

CompTIA Security+ – Active

Top Secret Security Clearance – Active

Technical Proficiencies

Languages & Markup: C#, JavaScript (ES6+), SQL, HTML5, CSS3, Java, Razor, Ajax

Frameworks & Libraries: ASP.NET Core, ASP.NET Framework, MVC, Web Forms, Entity Framework, NHibernate, React, Bootstrap, jQuery

Web & API: RESTful APIs, Web Services, JSON, XML, SAML

Databases: SQL Server, PostgreSQL, Oracle, DB2, LINQ, Stored Procedures, Reporting Services

Tools & Platforms: Visual Studio, Git, GitHub, Azure DevOps, SSMS, Azure Data Studio, SQL Jobs, Toad

Cloud: AWS S3 (file storage); EC2 used for infrastructure scaling

Contact this candidate