Mark Heitke of DoorDash’s Symbiosys: From Fortune 500 to Startup Success
Retail media has become one of the fastest-growing areas in commerce—but for Mark Heitke, it wasn’t a planned destination. In this episode of Candid with Candidates, Jenn Hahn speaks with Mark Heitke, Head of Commerce Media Strategy at Symbiosys,now part of DoorDash, about the experiences that shaped his leadership approach and career trajectory.
Mark shares how his path—from film studies to early-stage startups to more than a decade at Best Buy—prepared him to help build one of the earliest retail media organizations in the industry. He reflects on what it takes to drive innovation inside a large corporation, navigate organizational change, and earn trust while building something new.
The conversation also explores Mark’s transition from a large enterprise environment to joining Symbiosis as its 17th employee, and later integrating into DoorDash following its acquisition. Throughout the episode, Mark offers thoughtful insights on leadership in high-growth environments, redefining work-life balance as alignment, and why honesty—both with yourself and in interviews—is critical to long-term success.
This episode is particularly relevant for leaders navigating career transitions, professionals working in retail media and ad tech, and anyone evaluating whether they thrive in startup, corporate, or hybrid environments.
Episode Highlights
03:41) Mark’s role today and the strategic purpose behind Symbiosis
(07:37) What it’s like to join a startup as employee #17
(10:13) From film school to learning how to code: embracing nontraditional paths
(12:26) Helping build Best Buy’s retail media business before the category was established
(15:02) Leading transformation within a Fortune 500 organization
(20:36) Why understanding organizational motivations matters more than being right (is this right?
(26:10) Leadership in high-pressure environments: clarity, prioritization, and perspective
(29:23) Reframing work-life balance as alignment
(33:13) Key differences between corporate leadership and startup leadership
(39:13) Navigating change after Symbiosis became part of DoorDash
(41:18) Candid advice for candidates navigating today’s job market
“The worst thing that can happen in an interview is that both sides are being dishonest. You should be honest about what you want, and employers should be honest about what they need.”
What You’ll Learn from This Episode
How nontraditional career paths can prepare leaders for complex, evolving roles
What it takes to build and scale retail media inside a large organization
The leadership skills required to navigate transformation and organizational changeHow expectations shift when moving from enterprise environments to startups
Why alignment—not balance—is a more realistic framework for managing career and life priorities
How self-awareness helps leaders choose environments where they can thrive
Why honesty and clarity are essential during career transitions and interviews
Connect with Mark
Mark Heitke on LinkedIn
Stay Candid
Candid with Candidates shares real stories from inside major organizations—stories that don’t make it into the slide decks or LinkedIn highlight reels. Follow along for conversations that inform, encourage, and help you navigate your own path to leadership.
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