John Peck

John Peck, known professionally as Jon Peck, is senior product marketing manager at Evinced, where he focuses on digital accessibility and AI-assisted software development. Previously, he helped establish GitHub’s Enterprise Advocacy team in the Americas, guiding organizations through developer collaboration, security, and the adoption of coding assistants.

His earlier career included work with Cornell University, Massachusetts General Hospital, startups, consulting, and Algorithmia, where he worked on serverless machine-learning services and production deployment. He also developed hands-on training for deploying machine-learning models as microservices.

After joining GitHub in 2020, Peck worked in its Executive Briefing Center before moving into technical advocacy and enterprise developer relations. His guide to collaboration-ready repositories emphasized documented ownership, contribution rules, and project purpose—principles that later shaped his approach to giving coding agents usable context.

At AI Engineer World’s Fair 2025, he assisted Christopher Harrison with a hands-on GitHub Copilot workshop, helping participants configure accounts and repositories. Peck’s distinctive contribution was that technical leads should record architectural decisions, dependency choices, and coding patterns in shared instructions as teams make them.

• Repository instructions as architectural memory. Shared Copilot instructions give developers and agents consistent guidance about a team’s conventions, dependencies, and expectations.
• Human-supervised coding agents. His guide to turning issues into pull requests stresses detailed requirements, acceptance criteria, human review, and continuous-integration safeguards.
• Accessibility built into development. At Evinced, Peck has examined how AI-generated applications reproduce accessibility failures and how design-to-engineering handoffs can cause accessibility requirements to disappear during implementation.
• Model choice depends on the task. His comparison of models inside GitHub Copilot weighs speed, completeness, and output quality while emphasizing that custom instructions and project context shape results.

His projects include Copilot Chat to Markdown, which converts coding-assistant conversations into reusable documentation.