John C. Gilliland

Full Stack Engineer

me@johng.info

A full time software developer for the last 24 years. Extensive experience with Microsoft platforms and technologies, predominantly .NET/C# (WPF/UWP/ASP.NET/APIs), as well as with Angular and React web development platforms. I would enjoy an opportunity that allowed me to continue to improve my skills by learning from those around me, and also include a chance to mentor less experienced developers.

Actively looking for new opportunities

Core Skills

Languages

C#, Typescript, Go (Golang), Python, Ruby, XAML, CSS/Sass, SQL (TSQL)

Frameworks / Libraries

.NET Core / ASP.NET APIs, Angular, React, WPF, UWP, Entity Framework, Node.js

Cloud / DevOps

AWS (Cloud Deployment), Azure, Docker, CI/CD Pipelines (Jenkins, Bamboo), Git

Databases

PostgreSQL, MySQL, SQL Server, MongoDB, Data Modeling, ORM

Engineering Practices

System Architecture, Microservices, Performance Optimization, Code Review, SOLID

AI / Tools

Gemini CLI, Copilot, Claude Code CLI, JIRA, Agile/Scrum

Soft Skills

Async Communication, Requirements Gathering, Mentorship, Pair Programming

Experience

Senior Software Engineer at STARZ Entertainment

Jan, 2022 – Oct, 2025

Architected and led the full stack development of a re-platforming initiative, consolidating legacy UWP and Angular codebases for the STARZ Xbox streaming application onto a shared platform.
Achieved a 94% reduction in codebase size (from 50k to 3k lines of code) and significantly stabilized deployments, reducing release frequency from 2 times per months to 1–2 times per year.
Delivered full rebrand of the Xbox UWP streaming client solo, and ahead of schedule, using Figma/Zeppelin UX specs. Managed CI/CD pipeline for releases to the Microsoft Store.
Collaborated directly with Microsoft as an early adopter of WebView2 on Xbox, influencing platform standards and securing early compliance, which reduced Xbox-specific defects by over 80%.
Initiated and developed an internal Go-based CLI utility to automate flight management and Microsoft Partner Center submissions, saving development and QA teams 6–8 hours per release cycle.
Evaluated and presented analysis on integrating Gemini CLI and Copilot into the developer workflow for enhanced developer productivity.
Partnered across design and backend teams in a fully remote Agile (JIRA) environment.

Lead Engineer at Gener8 – The RND Group

Feb, 2012 – Jan, 2022

Served as Technical Lead for multiple FDA-regulated diagnostic device software projects (C#, .NET, SQL). Drove system architecture decisions, code reviews, and delivery of production software for major clients (Exact Sciences, Beckman Coulter, Grail Bio).
Spearheaded the migration of the company's enterprise projects from .NET Framework to .NET Core, resulting in 40% increased capacity for cross-platform projects and improved long-term maintainability and performance optimization.
Contributed a full-stack ASP.NET API in C# to coordinate execution of assay automation scripts on Hamilton Robotics STAR devices for a cancer detection test (Grail Bio). My performance on a previous project led to this project's acquisition, generating $134,400 in revenue.
Lead developer for the preparatory instrumentation software for the Cologuard diagnostic for Exact Sciences. Product is in the market with $2.1 billion of annual revenue (2024).
Created a reusable print-service proof-of-concept that was later adopted across multiple products, lowering the development hours required for implementing print features by 70%.
Staff augmentation for Beckman Coulter on a team to help boost productivity on medical diagnostic device project in UWP / C# / XAML and take to finish line. In helping the team complete the project, my performance led to 2 additional resources from RND Group being added to other Beckman Coulter projects totaling $268,000 in added revenue.
Mentored junior developers, instituted pair programming sessions, and chaired the company events committee.

Mentor (met with each student once per week). at Trilogy Education Services

Feb, 2019 – Feb, 2020

Mentored full-stack web development students remotely for UC Berkeley, Vanderbilt, and UW programs. Guided 10+ students through projects and career growth; several secured new roles after completion.

Senior Developer at GK Technologies, LLC

Oct, 2009 – Feb, 2012

Served as a key Senior Software Developer for our largest client’s application for tracking bad check payments and warrants by county Sheriff departments. This software is still in use across multiple states in many sheriff offices. I was responsible for architecture decisions and feature implementation.

Senior Developer at Global Aviation [GlobalAir.com]

Apr, 2009 – Oct, 2009

This position involved rewriting a classic asp(3.0) application on a private intranet. The new version is written in C# using ASP.Net MVC framework and test-driven development using VS testing tools. The back-end of the application included a new Linq to SQL Server integraiton. Rewrite of this web application was the sole purpose of my contract.

Web Developer at Fastline Publications [Fastline.com]

Oct, 2008 – Apr, 2009

Developed custom jquery plug-ins for the catalog site, and a Windows service (C#) for updating a Google Base of products using test-driven development. Contract was through Brooksource and resulted in a direct offer.