The University of Southern Mississippi

Senior Software Engineer at Credit Karma

Credit Karma

Senior Software Engineer 2

Senior Software Engineer

Software Engineer 4

- Lead design, architecture and development of Project Bids, a C#/WPF desktop application used to sign and encrypt electric bids. 
- Planning and researching the migration to .NET Core 3.0 and SaaS environment for the future of Project Bids.
- Migrated from TFS to AWS CodePipeline for a full CI/CD lifecycle.
Collaborated with architects to establish architectural guidelines for the department.
- Dockerized Ruby on Rails and Perl applications for local development and planning for containerized architecture.
- Built bid archival tool to dump legacy bid files to JSON. Had to reference unbuildable C++ codebase and reverse engineer what I could gather from the source code. 
- Designed and built a serverless application that takes in list of URLs, zips up the contents, uploads to an S3 bucket all without touching the disk, or using more memory than a single file.
- Continued mentorship program and lead two more students to learn real world software development: Project include:
⠀⠀• Dockerized Python Flask + React app that was used to to apply filters to images. 
⠀⠀• Serverless Vue.js file hosting and searching app. Upon file uploaded, an event would trigger an OCR scan of the file which would populate a DynamoDB table. The user was then able to search their files based on the content of the file.

Info Tech, Inc.

Software Architect

- Lead design, architecture, and development of Project Bids development after initial release.
- Managed all warranty, maintenance and enhancement releases.
- Designed and planned v2.0 and v3.0 releases which featured:
⠀⠀᛫ New auto-update functionality to replace ClickOnce.
⠀⠀᛫ Enhanced templating and printing engine to enable mathematical expressions and conditional logic.  
⠀⠀᛫ New customizable template controls.
- Built C++ PDF manipulation library to increase performance and document compatibility
for our products that consume PDFs.

Began mentoring college student to give them real world experience in software development. Projects included: 
 - Polymer SPA to open encrypted bids in the browser using WebCrypto. Features include: drag and drop file upload, decrypting file, verifying digital signature, and unzipping attachments. 
- JavaScript PDF parser that was used split the document into multiple pages in parallel using AWS Lambda functions. 

Lead summer internship project to help a student learn the day to day life of a software developer. There he learned about planning, estimation, releasing and testing software. He was able to release into production bug fixes, feature enhancements, as well as redesigning and implementing a new feature into the product.

- Lead development team of bidx.com, a bidding web application that processes billions of dollars of  Department of Transportation contracts every year. 
- Hired and trained junior developers for bidx.com.
- Migrated 40+ Department of Transportation customers from the legacy application to the newly written solution.
- Released enhancements to bidx.com:
⠀⠀• Added MongoDB for bids, attachment, and logs.
⠀⠀• Improved historical bid analysis to include graphs and mapping functionality.
⠀⠀• Custom Perl library to integrate with C++ library to improve performance and compatibility.
⠀⠀• Custom Perl library using libssh to improve reliability of offsite backups.
- Contributed to the Perl MongoDB driver implementing SSL connection logic and addition query features. 
- Presented contribution and use case at MongoDB - Seatle 2012.
- Lead migration from Subversion to Git.
- Began Project Bids project to rewrite a legacy C++ WinApi application to a modern C#/WPF application using MVVM and RESTful APIs. This application is used to sign, encrypt, and submit bids to a web application (bidx.com). It features:
⠀⠀• Custom GUI templating and printing engine.
⠀⠀• Custom error and validation logic.
⠀⠀• Auto updating.

Software Developer II

Core team member of the bidx.com team. This project was a rewrite of legacy web application that was split into 40+ code bases into a single unified code base. This written with a custom in house Perl framework.
- Authored major sections of the application: user and session management, attachment uploads, historical bid analysis, client side bid decryption tool, and a PDF plan sheet/blueprint viewer.
- Wrote and maintained unit, integration, and functional tests. 
- Worked closely with business team and operations team throughout development to ensure a successful release.

Software Developer

Provided maintenance, features, and content updates to the company website, as well as, multiple client websites. Clients included: Brett Favre, Deanna Favre, and Thomas Brent “Boo” Weekley.

Casey Rojas