ON

Mark Freeman

@onthemarkdata

Website

Joined January 2022

28 Followers

2 Following

AI Insights & Achievements

9/ 100

Consistency

16 day streak.

Profile README

Hi there 👋🏽
Thank you for visiting my GitHub profile, I'm so excited you are here!

About Me:
🎯 Founder of On the Mark Data.
📊 I'm a data scientist turned data engineer passionate about all things data.
📕 O'Reilly Author - Data Contracts: Developing Production Grade Pipelines at Scale

Fun Facts:
🕺🏽 I use to be a dancer and street performer.
🕹️ When I'm not coding, I'm playing pinball.
🎥 My favorite movie is the 1988 anime Akira.

Follow Me:
⛓️ https://www.linkedin.com/in/mafreeman2
⛓️ https://scalingdataops.substack.com
⛓️ https://www.onthemarkdata.com

Organizations

SO

Public Repos

7

Total Stars

12

Total Forks

10

Public Gists

0

Top Languages

Based on primary language of repositories

Recent Activity

Contribution Graph

Activity Timeline

Commits and contributions grouped by day, week, or month.

High productivity periods

Most active day: January 9th, 2026 • 4 contributions

Most active week: Dec 22–Dec 28 • 27 contributions

Most active month: Sep 2025 • 173 contributions

DiscussionEvent on Sonnet-Scripts/sonnet-scripts

January 17th, 2026 6:15 AM

Starred JoeReis/context_graph_prototype

January 10th, 2026 5:54 AM

DeleteEvent on Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:26 PM

Pushed to main at Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:26 PM

merged pull request in Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:26 PM

Pushed to onthemarkdata-patch-1 at Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:24 PM

opened pull request in Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:23 PM

Created branch onthemarkdata-patch-1 in Sonnet-Scripts/sonnet-scripts

January 9th, 2026 7:23 PM

GitHub Analytics

Mark Freeman

Consistency