Independent/Personal Project Exam Score | Lead | github.com/davidfekke/individual-capstone-davidfekke

• Created a traditional machine learning model for predicting exam scores of students.
• Used an EDA process to find the best labels and features for predicting the target value.
• Built a scaler and regression model with a classification model using Scikit-learn.

Fullstack Academy Capstone Smart City | CNN Lead | vibetastrophe.com | github.com/davidfekke/final-capstone-vibetastrophe-consulting

• Worked on a team project to develop five machine learning models for Smart City to evaluate causes of traffic accidents.
• Built a neural network and a convolutional neural network using transfer learning and TensorFlow to predict potholes in uploaded images.
• Built and deployed a live web app using a Docker container on DigitalOcean for the final project with all five models.

Consultant Software Engineer | Banner Health | Phoenix, AZ

• Helped plan and document new microservices using Kubernetes on AWS EKS.
• Added new enrollment integration to existing legacy Azure functions and microservices.
• Performed PR reviews for .NET, Angular, Blazor, React, Express, and Python applications.

Application Architect | Pragmatic Works | Green Cove Springs, FL

• Application Architect for an on-demand learning application with video training, test taking, and AI-based mentoring.
• Added live streaming to the platform through the Mux video provider.
• Added full-text search and Azure Vector-based AI search to the platform.
• Added a feature that incorporated LLM-based summarization of video transcripts.
• Built a Next.js prototype for replacing the existing front-end.

Contractor | Trade Hounds | Boston, MA

• Contract software development for upgrading a React Native application used by workers in the trades.
• Upgraded React Native from version 0.68.5 to 0.73.5.
• Helped identify and upgrade JavaScript and native modules for improved performance and reliability.
• Worked with the development team to improve best practices and development standards for new features.

Staff iOS Engineer | Bill.com | San Jose, CA

• Developed a brand new mobile app based on current iOS technologies for Bill.com users.
• Helped integrate native and React Native applications into a single code base.
• Part of a team that rewrote the native iOS app using SwiftUI, Combine, and Apollo GraphQL with feature modules.
• Implemented configurable features using Firebase Remote Config.
• Developed CI/CD solutions for automated testing and delivery to Apple App Store and Google Play Store.
• Mentored developers transitioning from React Native to iOS and Swift.
• Led the transition from Fastlane to Bitrise and created a CLI release management tool using OCLIF.

Chief Mobile Architect | Swyft Technology | Ponte Vedra Beach, FL

• Responsible for architecting and writing all native iOS and Android applications.
• Oversaw the rewrite of the native iOS app from Objective-C to Swift using UIKit and code-based views.
• Helped oversee app release processes for Apple App Store and Google Play approvals.
• Integrated the BlackBerry Dynamics framework into native applications.
• Used the Salesforce Mobile SDK to access data from customer Salesforce orgs.
• Created and published a Salesforce Apex package on AppExchange.
• Built a dynamic form tool using React Native so the component could be shared across iOS and Android.
• Assisted sales staff with sales engineering and technical customer discussions.