JustinPeterman
Product engineer
Fifteen years of frontend at scale, driven by user experience and an unreasonable commitment to craft.
Work
Sharing Platform
LinkedInLeveraged agentic tooling to dramatically increase developer velocity and build new content creation features for the LinkedIn Sharebox on the LinkedIn homepage feed.
Publishing Platform
LinkedInLed the ground-up rebuild of LinkedIn's flagship article writing experience, migrating from Quill to Tiptap to improve build reliability, testing, and deployment overhead — delivering a faster, more reliable authoring surface and unlocking product features not previously feasible. Also led the rewrite of @mentions on LinkedIn share box and article editor, an implementation adopted by Publishing and Homepage feed share box. Launched cover video creation and consumption experience for LinkedIn articles, rolled out across 30+ surfaces on site. Beyond the editor, led the team owning LinkedIn's article reading experience and newsletter creation features, while mentoring junior engineers across team.
Sharing Platform
LinkedInHelped onboard and rebuild the Sharing Team from scratch following a departmental reorg, serving as interim tech lead. Co-authored proposal for a rebuilt sharing platform on desktop. Audited existing sharing systems and identifying gaps between the legacy and new stacks. Led several refactors on the new sharing codebase. Ran sharing experiments in collaboration with stakeholders. Desktop sharebox experience ramped to LinkedIn members globally as part of Linkedin.com rewrite. Joined a cross-company initiative to decommission legacy services, writing bash scripts to analyze traffic across 450+ endpoints. Mentored a junior engineer and a summer intern, conducting regular 1-on-1s and provided technical and career guidance.
SlideShare Platform
LinkedInSuccessfully shipped Clipping on SlideShare, which allowed members to save and curate individual slides from slideshows to online folders. Owned a majority of the frontend implementation. The feature far exceeded expected monthly metrics, generated positive press for SlideShare, and created an entirely new segment of active users: 49% of clippers were neither uploaders nor downloaders, opening a new funnel of LinkedIn-authenticated users on the platform.
Sharing Web Platform
LinkedInLed the frontend implementation of LinkedIn's updated inShare button in collaboration with brand and marketing, shipped to top sharing publishers as part of marketing push. Drove frontend migration of LinkedIn's offsite share dialogs and onsite reshare dialogs from legacy stack to Play and ramped to all members.
Pulse App
Pulse — Acquired by LinkedInOne of three engineers who launched the original Pulse web app, a news reader that reached millions of users before being acquired by LinkedIn. Responsible for the core UI, templating system, and JavaScript content parser, as well as early monetization prototypes. Post-acquisition, shipped a Google Reader feed import tool that migrated 1.5M RSS feeds, a cookie-based deep link routing system for pulse.me short URLs, and a JS/native bridge for commenting support within webview reading view. Also implemented full Pulse homepage refresh ahead of the LinkedIn Pulse app launch.
About
Building the tools
that help people write.
I'm a Staff Software Engineer at LinkedIn, where I serve as tech lead for the Publishing team — the people and systems behind how millions of professionals write, share, and read long-form content: articles, newsletters, and the full reading experience on the world's largest professional network.
I've been building for the web for over fifteen years, from startups like Pulse (acquired) to platforms with over 1 billion members (LinkedIn). My technical home is the browser: HTML, CSS, and JavaScript — the native materials of the web. I have particular depth in rich text editor engines: ProseMirror, Tiptap, and Quill.
I studied Information Systems at Southern Illinois University with a minor in Journalism — a combination that turned out to be the right preparation. Understanding both the technical craft and the act of writing has shaped how I think about the tools I build. Away from work, I enjoy watching baseball, long distance running, and pretending that I can cook.
open web
tabs open
York City
Contact
Let's build something
together.
Whether it's a new project, a collaboration, or just a conversation about the web — I'd love to hear from you.
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