Founding Chief of Staff Series B Jobs

Founding chiefs of staff typically receive 0.3% to 1.2% equity depending on stage and scope. At Series A, the first chief of staff might receive 0.6-1.2%, while at Series B+ they might receive 0.3-0.8%. Chief of staff roles receive similar equity to senior business roles, reflecting their strategic proximity to leadership.

A chief of staff works on the CEO or founding team's highest-priority projects — board preparation, fundraising, strategic initiatives, key hires, and anything requiring high-context decision-making. The role is a force multiplier for founders, handling execution on critical projects that don't fit neatly into any single function.

Hire a chief of staff post-Series A when founders need leverage on execution and coordination — typically when the company is 30-75 employees and competing demands on founder time create bottlenecks on strategic work. The role makes less sense at very early stage when founders can still own everything directly.

Executive presence and judgment, strong written and verbal communication, ability to manage complex projects with many stakeholders, and high trust from founders. Chiefs of staff need to think like operators, write like communicators, and execute like project managers — all while representing the founder's voice and priorities.

Founding Chiefs of Staff often become COOs or founders themselves, having learned how startups operate end-to-end. Some transition into general management or VP roles at growth-stage companies. Others join venture capital as operating partners or start executive coaching practices. A smaller group moves into product or operations leadership, using their cross-functional experience to lead teams. The breadth of exposure — strategy, operations, fundraising, people — makes founding CoS highly versatile.

Yes, but you need to show comfort with ambiguity and direct founder interaction. At large companies, Chiefs of Staff manage processes and coordinate between departments. At startups, you are the founder's proxy, handling everything from investor relations to hiring decisions. Demonstrate that you've worked closely with executives, managed cross-functional projects, and can make decisions without full information. The key skill is judgment — knowing when to act and when to escalate.

At Series A, the founding CoS role is usually filled or evolving into a more specialized operations or strategy role. What exists is a senior CoS with some established systems, less equity (0.1% to 0.3%), and more defined scope. If your goal is to be the founder's right hand from the earliest days, Series A is late. If you want to join a company with early processes and help professionalize operations, it can work — but expect more management and less founding-level creation.

At 200 people, Chiefs of Staff are strategic advisors to executives, managing processes and coordinating between departments. A founding CoS is the founder's proxy — making decisions, running projects, and handling anything that doesn't fit into another function. There is no established process, no executive team, and no clear org chart. You create structure from chaos. The role is closer to a co-founder than an executive assistant.

Watch for four things. One: founders who see CoS as an administrative role, not a strategic partner — you'll be undervalued. Two: no clear scope — if the role is "help with everything," you'll burn out. Three: founders who won't delegate real decisions — if you can't make calls without approval, you're not a CoS, you're an assistant. Four: equity without a clear vesting schedule. Read our guide on red flags when evaluating founding roles for a complete checklist.