centner.dev
This personal site — a modern Next.js app with a custom design system, dual-mode color palette, and an AI-powered chatbot. Built to showcase projects and connect with people.
Next.jsReact 19TypeScriptCSS Modules
Hi, I'm John Centner.
I ship software with spine.
I'm a full stack engineer who cares about product feel, system design, and fast, dependable delivery. I build polished web experiences, shape the architecture behind them, and use AI tooling where it actually shortens the path from idea to production.
Experience
Where I've worked
Full Stack Software Engineer
IngageJanuary 2026 - Present
Architected an e-commerce billing platform using Go, React, and Maxio, built AI-powered asset library and presentation generation systems with AWS Bedrock and OpenAI, and led migration of legacy Python services into Go APIs.
Junior Full Stack Software Engineer
IngageJuly 2024 - December 2025
Delivered customer-facing and internal product features across React and TypeScript applications while supporting backend services in Go and Python and contributing to data and automation tooling.
Head Teaching Assistant
Georgia Institute of TechnologyAugust 2023 - May 2024
Led a team of about 40 teaching assistants supporting 1,000+ students and coordinated course delivery, training, and day-to-day operations across sections.
Software Engineering Intern
CGI Inc.May 2023 - August 2023
Built an AI-driven scheduling assistant using Python, Flask, and Docker and contributed full-stack improvements to internal tooling and web application workflows.
Teaching Assistant
Georgia Institute of TechnologyAugust 2022 - May 2023
Supported Objects and Design students in labs and office hours and led a React rebuild of the course website for improved navigation and maintainability.
Mobile Development Intern
OTR SolutionsMay 2022 - August 2022
Redesigned React Native application workflows and introduced SonarQube quality checks to strengthen code health and delivery confidence.
Projects
What I've built
API Platform
A production Go API with clean architecture — controllers, middleware, migrations, and structured error handling. Powers the backend for multiple projects.
GoPostgreSQLDockerREST
AI Tooling
Custom tooling and workflows leveraging large language models for code generation, review automation, and intelligent developer assistance.
LLMsTypeScriptPrompt Engineering
Publications
Research and writing
Published
Exploring Students' Insights on Creating Videos to Learn Software Design and Engineering
Research publication focused on how students use video creation to learn software design and engineering concepts.
ResearchSoftware DesignEngineering Education
In Progress
Forthcoming Publication
Second publication currently in progress and expected to be published as upcoming research work continues.
ResearchForthcoming
Contact
Let's work together
I'm always open to new opportunities, collaborations, and interesting conversations. Reach out and let's build something great.