Product / Builder / DevRel

Luke Hartzell

I'm a developer advocate, founder, TikTok effect creator, software engineer, Georgia Tech grad, and gym rat.

Developer Advocate at Snowflake on CoCo, its AI coding agent. My TikTok filters have 17B+ views. Georgia Tech CS, 4.0 GPA.

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About

This is my room. Everything in it is a piece of my story, so look around.

Luke by the window

Hey! I'm Luke: a product person, builder, and developer advocate from Chicago. Welcome to my room. Everything in here is a piece of the story.

My trading card. Tilt it, then tap to flip.

Education

Georgia Institute of Technology

B.S. in Computer Science, Atlanta, GA

Aug 2022 – Dec 2025

Coursework and grades
CourseworkGrade
AlgorithmsA
Data StructuresA
Intro to AIA
Object-Oriented ProgrammingA
UI/UXA
Educational TechnologyA

GPA 4.0 out of 4.0

Experience

Eight roles, a few of them at once. Pick one to jump into its world, or keep scrolling through all eight.

  1. 01Developer Advocate SnowflakeJun 2026 – now
  2. 02Founder & Product Lead Interview PrepperMay 2025 – now
  3. 03TikTok Effect Creator Luke's FiltersJan 2024 – now
  4. 04SDE Intern Amazon Web ServicesMay – Aug 2025
  5. 05Software Engineering Intern Chamberlain GroupMay – Aug 2024
  6. 06Software Engineer & Product Manager AI Makerspace Nexus, Georgia Tech VIPAug 2024 – now
  7. 07Software Engineer & Project Manager Intelligent Tutoring, Georgia Tech VIPJan – May 2024
  8. 08Teaching Assistant Georgia TechAug 2023 – Dec 2025

1 of 8

Developer Advocate

Snowflake, Menlo Park, CA

Jun 2026 – present

what does Luke do at Snowflake?

Read experience/snowflake.md

Luke is a Developer Advocate on CoCo (Cortex Code), Snowflake's AI coding agent, helping developers get real work done with it.

  • His workshops and demos have driven hundreds of trial signups.
  • He led the internal adoption campaign for the Skills feature (early users up 3×+) and dogfoods pre-release products, turning customer and SE feedback into fixes before launch.
  • 15+ technical posts on the Snowflake blogs, including the CoCo Desktop GA launch post and a deep-dive on why the same model ran 3.9× cheaper inside CoCo's harness.

/skills

agentic-video-editor
edits your videos for you
agentic-demo-maker
builds product demos for you

2 skills, both built by Luke

My posts on the Snowflake blog

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Founder & Product Lead

Interview Prepper, remote

May 2025 – present

  1. 0→1Upload your résumé, get a personalized prep plan. Shaped by interviews with recruiters and a PM.
  2. A/B testSpotted an off-season engagement dip, shipped daily mini-games, and A/B tested them: +21% session frequency, +36% L28 retention.
  3. ReachUsed by 1K+ job seekers.

interviewprepper.co

3 of 8

TikTok Effect Creator

Luke's Filters

Jan 2024 – present

17B+views

45M+videos made with my filters

AR effects built with visual scripting, procedural effects, 3D modeling, face tracking, and shaders. The trick: read the trend and ship before it peaks.

  • #facetracking
  • #shaders
  • #3Dmodeling
  • #visualscripting
  • #proceduralFX

@lukes.filters on TikTok

4 of 8

Software Development Engineer Intern

Amazon Web Services, Mechanic Core, Seattle, WA

May – Aug 2025

  1. Events
  2. Kinesis
  3. Java log processor
  4. Lambda router
  5. On-call
  • Owned the PRD and design review for an event-driven incident analytics pipeline (Java, Kinesis) to speed up on-call triage.
  • Built a Java log processor and a Python Lambda routing layer that drops noisy events before they reach downstream services.
  • Implemented the code and infrastructure for production deployment, plus the team's production infrastructure migration.

5 of 8

Software Engineering Intern

Chamberlain Group, Chicago, IL

May – Aug 2024

  • Designed a Playwright + Cucumber automation framework that cut end-to-end test time 62% (56 seconds a run).
  • Caught and escalated 2 critical bugs before they reached 10M+ users.

6 of 8

Software Engineer & Product Manager

Georgia Tech VIP, AI Makerspace Nexus, Atlanta, GA

Aug 2024 – present

StudyBuddy is an AI note-taker for lectures. It turns each class into clean notes, a quick summary, and topics students can come back to, so they can pay attention instead of copying slides.

StudyBuddyLecture 14 · notes ready

  • NotesEverything from class, cleaned up
  • SummaryThe lecture in a minute
  • TopicsTagged so they're easy to find later
  • Led product for StudyBuddy and piloted it with ~160 students across 2 class sections.
  • Built the pieces that turn lecture slides into notes, summaries, and topics, running on Georgia Tech's AI supercomputer.

7 of 8

Software Engineer & Project Manager

Georgia Tech VIP, Intelligent Tutoring, Atlanta, GA

Jan – May 2024

Quick check: in a binary search tree, where do smaller numbers go?

  • Built AI study modules for learning data structures: a tutor students can chat with, instant feedback on their code, and quick quizzes like this one.
  • Led a team of 4 through design, planning, and development.

8 of 8

Teaching Assistant, Object-Oriented Programming

Georgia Institute of Technology, Atlanta, GA

Aug 2023 – Dec 2025

  • Helped teach a 900-student course: recitations, office hours, and ~30-student review sessions.
  • Wrote rubrics and automated test cases so students got feedback faster.

Projects

Side projects, hackathons, and two UX case studies. Pick a door, or keep scrolling to walk through all six.

  1. 1Better Spotify Wrapped2024, web appSpotify Wrapped, but anytime, with way more detail.
  2. 2IdentifAI2023, Android, HackGTXHelps Alzheimer's patients recognize the people they love.
  3. 3Gopu2024, HacklyticsFinds the public restrooms Google won't.
  4. 4FogOfYou2026, desktop appDecoy agents that make your ad profile worthless.
  5. 5Beelinguapp Redesign2025, UX case studyCommunity stories for language learners.
  6. 6LiftIQ2025, UX case studyA gym app with an AI form coach.

1 of 6

Better Spotify Wrapped

Web app, team of 6

2024

Spotify Wrapped, but anytime, and with way more detail. I led the team from Spotify's API to making the data actually look good.

Built with React and the Spotify API.

See the post

2 of 6

IdentifAI

Android app, HackGTX, team of 3

2023

Helps Alzheimer's patients recognize the people they love, with facial recognition and secure profiles.

Built with Kotlin, AWS Rekognition, and Firebase.

Watch the demo

3 of 6

Gopu

Hacklytics 2024, team of 4

2024

Google doesn't let you search for public restrooms, so we built an app that does: it finds the ones near you and lets you filter them.

Built at Hacklytics 2024, Georgia Tech's data science hackathon. I wrote the filtering algorithms.

See the post

4 of 6

FogOfYou

Desktop app with AI agents

2026

A privacy app: autonomous browser agents roam the web as decoy personas until your ad profile is worthless to data brokers.

Built with Electron, React, TypeScript, Playwright, and Gemini.

View on GitHub

5 of 6

Beelinguapp Redesign

UX case study, team of 5

Feb – May 2025

Community Stories: a way for language learners to share and discover culturally relevant stories, shaped by user interviews and iterative testing.

Methods: affinity diagramming, heuristic evaluation, Figma prototyping.

Read the case study

6 of 6

LiftIQ

UX case study, solo

Mar – May 2025

A gym app with an AI coach: motion tracking, video instruction, and written guides for proper form, refined through rounds of user testing.

Methods: motion-tracking UX, video instruction design, usability testing.

Read the case study

Skills

Every keycap is a skill. Hover one, or type on your own keyboard.

Languages

  • Java
  • JavaScript
  • Python
  • C
  • SQL
  • HTML/CSS
  • Lua
  • Kotlin

Frameworks & tools

  • React
  • Node.js
  • Playwright
  • Cucumber
  • Firebase
  • Bootstrap
  • Git/GitHub
  • Jira

AI & cloud

  • Agent skills
  • LLM integration
  • Gemini
  • Vertex AI
  • AWS Lambda
  • Kinesis
  • Rekognition
  • Snowflake

Product & design

  • PRDs
  • A/B testing
  • User research
  • OKRs
  • Figma
  • Effect House
  • Technical writing
  • Workshops

Let's connect

Always down to chat about projects, opportunities, or just cool tech stuff. Feel free to reach out!

lukedhartzell@gmail.com

Email me