• Worked with clients to build and maintain custom full stack web applications, from frontend to backend to deployment on AWS resources

• Mentored and managed a junior developer, reviewing pull requests and ensuring thorough testing and best practices

• Updated our stack from services run on VM's to containers in a multi-AZ Docker Swarm cluster

• Extensive use of Python, Flask, FastAPI, PostgreSQL, Typescript/Javascript, Vue.js, AWS (EC2, EBS, RDS, ELB, S3, ECS, ECR, AWS Batch, IAM, VPC, Lambda, and more), Docker containers, Docker Swarm, Linux, Ansible, NGINX

• Set up CI/CD pipelines with Ansible, Github Actions, and TeamCity

• All code extensively tested (pytest and jest)

• Adapted to challenges unique to client's needs, for example:

• Dynamic generation of PDFs (ReportLab), with live preview on frontend

• Dynamic generation of Excel files with custom data validation

• Maintaining audit trails around sensitive database records for HIPAA compliance

• Handling checkout and subscription management on backend and frontend with Stripe

• Integrating with third party API's

• Worked with clients to build custom native Android apps

• Extensive use of Kotlin, data persistence with Realm and Room, dependency injection with Dagger and Koin, ReactiveX style asynchronous programming with RxJava/RxAndroid, HTTP API usage with Retrofit, image loading with Glide and Fresco, background processing with WorkManager, maps and location with Google Maps and Mapbox, and testing with JUnit and Mockito

• Set up CI/CD pipelines publishing to the Google Play store with fastlane

• Adapted to challenges unique to client's needs, for example:

• Background caching of Mapbox tiles for later offline use

• Performant infinite scrolling RecyclerView feeds

• Custom Android library for communicating with a hardware device via MQTT

• Maintained and updated the WedPics Android app

• Extensive use of Java

• Implemented in-app-purchases with Google Play, updated UI with new designs, debugged features, helped implement new image editing features with OpenGL

• Gained experience with multithreading, JSON, Android OpenGL API

• Developed an automated UAV ground control system for GPS waypoint flying using quadcopters

• Image processing using OpenCV

• Python programming on a Linux system using the Robot Operating System (ROS) and MAVProxy software