Currently at DoorDash
I design and ship AI-era product systems
in code.
…and I help design teams move from static handoff to working software.
Brennan Martin
Staff Product Designer / Design Engineer, AI Enablement, with 11 years of experience
I’ve been a design engineer since 2018. I learned to code because static artifacts were not enough. The work gets better when design can test behavior, read the system, and make the next decision from running software.
Currently, I lead design for DoorDash’s AI support & tooling strategy, building systems where human agents, automation, and product judgment share the same workspace. When I’m not reading about agentic systems, I’m reading about WWII.
Last 6 months
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Led design for one global AI-native support platform across markets instead of several disconnected tools.
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Built the Pace Car framework designers use to prototype in code and ship clean production slices — 1,023 commits · ~126 merges · single-digit days from approval to ship.
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Built an AI case assistant that turns multi-step casework into guided actions, keeping agents focused on judgment instead of tool choreography.
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Increased semi-autonomous case assistance coverage from 46% to 89% with workflow prediction and agentic case-work tooling.
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Personally shipped 85 PRs — 82% substantial or complex, only 4% minor fixes.
Selected case studies
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One global support platform across two acquired companies
Led design for a unified support platform that replaced three legacy tools and gave 200+ support agents one production workspace for case resolution.
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A workflow that lets designers ship UI in code
Built the two-lane design-engineering workflow behind Pace Car: prototype in a shared code lane, port clean slices to production, and keep review small enough to ship.
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AI assistant that expands guided support coverage
Designed and shipped an assistant that predicts the next support workflow and guides agents through case work. Coverage grew from 46% to 89%, with 94% prediction accuracy on the highest-volume workflow.
What people say
"Brennan pairs vision with a very fast GTM and he's very quick to iterate, mock up designs, bring people along."
"He's done an awesome job stepping in to keep the team running and going in the many, many quarters that we have not had a PM. I've appreciated how leaned in he's been and how company-first he's been along the way, even despite having far more asked of him than is reasonable for most designers."
"He's been pivotal in getting dozens of people set up with development environments for working on DoorDash web-based projects. He recommends the most AI tools, and he does it proactively, really caring that people have awareness of the things they can use to go faster."