About

I'm DJ Petersen — a software engineer based in Seattle, WA, building software at the intersection of infrastructure and product for Loading....

Currently at Meta. I've taken products from idea to shipped across startups and big tech alike. I also founded Seattle Digital Commons, applying AI to civic challenges in Seattle.

Experience

I'm currently at , where I work across the stack on infrastructure and product. Before that I was at building developer tools and services that run at massive scale.

I spent time at working on frontend infrastructure, and at on rider and driver products used by millions.

Earlier in my career I was at , helping build the operating system for global trade, and before that at where I was an early engineer building fraud detection for insurance companies.

Each of these roles taught me something different about how to ship software that matters — from handling billions of requests to moving fast in a ten-person room.

Philosophy

Measure twice, cut once.

I've worked across the full spectrum — from petabytes to pixels. Whether it's designing infrastructure that handles massive scale or refining the details of a user interface, I bring the same careful, deliberate approach. Understand the problem deeply, then build the right thing.

Interested?

If what I'm building resonates with you, reach out.

Email me LinkedIn GitHub