Most fractional CMO job descriptions are poorly written full-time CMO postings with "20 hours per week" added at the top. That framing attracts the wrong candidates, creates misaligned expectations, and often produces a bad engagement.
A fractional CMO job description needs to be structured around outcomes, not activities — and it needs to reflect the real structure of the engagement. Here's how to write one, what to include, and a template you can adapt.
The Key Differences from a Full-Time CMO Posting
A full-time CMO posting focuses on culture fit, long-term leadership vision, and the ability to build and run an organization over years. A fractional CMO posting should focus on specific outcomes over a defined engagement period, the ability to operate independently with minimal ramp time, and a track record of delivering transformation at companies at your exact stage.
The biggest mistake companies make: writing a full-time CMO job description and calling it fractional. This attracts people who want a traditional CMO role and are using "fractional" as a bridge while they look for permanent employment — not operators who have deliberately built a fractional practice and have the pattern recognition that comes from doing it repeatedly.
What to Include
1. Business outcomes, not job duties
Lead with what the engagement needs to produce, not a list of activities. "Own pipeline attribution and deliver board-ready marketing reporting" is more useful than "track marketing metrics." The former attracts people accountable for outcomes. The latter attracts people who track spreadsheets.
2. Your specific company context
Include your ARR, stage, team size, and existing tools. A fractional CMO who specializes in $5M–$20M B2B SaaS is a different person from one who specializes in $30M–$80M multi-product companies. The right candidate for you needs to see themselves in your description — and quickly disqualify themselves if they're not the right fit.
3. Scope and hours
Be explicit about hours per month and how the engagement is structured. If you expect 30 hours per month across three days per week, say so. If you want weekly executive team attendance and monthly board presentation, include that. Ambiguity on scope is the most common source of fractional CMO engagement failure.
4. First 90-day expectations
The best fractional CMOs will have strong opinions about what the first 90 days should look like. Give them something to react to. Stating "we expect the first 30 days to be diagnostic and the next 60 days to be architecture and build" creates a productive conversation in interviews rather than a vague "tell me about yourself."
5. Reporting structure
A fractional CMO should report to the CEO, COO, or president — not a VP of Marketing or Director of Operations. If the reporting structure puts them below people they're supposed to lead, the engagement will fail. Make this clear in the posting.
Treetop runs 90-day AI-native GTM engagements for B2B companies at $5M–$50M. Start with a 30-minute discovery call.
Schedule a Discovery Call →What to Leave Out
- Cultural fit language — Fractional CMOs aren't building a long-term career at your company. Cultural fit matters less than demonstrated results at your stage and the ability to operate with a high degree of autonomy.
- Educational requirements — MBA or specific degree requirements filter out some of the best fractional operators who built careers through execution rather than credential.
- Day-to-day execution tasks — Writing copy, running ads, creating content — these are execution tasks, not CMO responsibilities. Including them signals that you want a marketing manager, not a CMO.
- Benefits and equity — Fractional engagements are structured as contractor relationships. Benefits don't apply; equity is rare and should be discussed separately if relevant.
A Sample Fractional CMO Job Description Template
Fractional CMO — [Company Name]
Engagement: Part-time / Fractional · 25–35 hours per month · [Start Date]
Reports to: CEO
About the Company: [Company Name] is a B2B [SaaS/services/platform] at $[X]M ARR serving [ICP]. We have [X] person marketing team and use [key tools]. Pipeline has been [inconsistent / growing but unattributed / dependent on the founder].
What We Need: A fractional CMO who has scaled B2B GTM motions at companies in the $5M–$30M range. You will own our GTM strategy, lead our marketing organization, and be accountable for pipeline outcomes. This is not an advisory role — you will build the system and be judged on results.
First 90 Days: Weeks 1–2: Diagnostic audit of current GTM motion. Weeks 3–6: Design and implement AI-native GTM architecture (ICP model, outbound system, pipeline dashboards). Weeks 7–10: Lead internal narrative and board reporting. Weeks 11–12: Transfer documented system to internal team.
Core Responsibilities: Own GTM strategy and be accountable for pipeline outcomes · Define and maintain dynamic ICP model · Build demand generation programs · Manage marketing team and external agencies · Own attribution infrastructure and board reporting · Lead executive team marketing conversations
What We're Looking For: Proven fractional CMO track record at B2B companies at our stage · Experience building AI-native GTM systems (not just using AI tools) · Ability to operate with high autonomy from day one · Comfort with board-level communication · Specific experience in [our vertical or motion] preferred
Compensation: $[X,000]–$[X,000]/month retainer · [Equity if applicable]
Evaluating Candidates: What to Look For
Beyond the job description, how you evaluate fractional CMO candidates matters. Three things to prioritize:
Specificity of past results
The best fractional CMOs can tell you exactly what they built, what the pipeline impact was, and what the company looked like before and after. Vague references to "driving growth" and "leading transformation" without specific numbers are a red flag.
A clear point of view on your first 90 days
Ask candidates to describe what they'd do in the first 30 days at your company. Strong candidates will have a framework that they've used before and can adapt to your context. Weak candidates will describe a generic onboarding process.
Comfort with accountability
Ask directly: "How do you define success in a fractional CMO engagement, and how do you measure it?" Strong candidates will describe pipeline outcomes, board-ready reporting, and what gets handed off. Candidates who describe deliverables and activities — blog posts, campaigns, positioning documents — are describing an agency relationship, not a CMO one.
Frequently Asked QuestionsBusiness outcomes the engagement is accountable for, scope of hours per month, company stage and revenue, key deliverables expected in the first 90 days, reporting structure, and resources available. It should not be a copy of a full-time CMO job posting.
Owning go-to-market strategy and pipeline outcomes; defining and refining the ICP; building demand generation channels; managing the marketing team and agencies; owning the marketing tech stack and attribution; and translating marketing performance into board-level financial reporting.
Typically 20 to 40 hours per month — roughly 5 to 10 hours per week. Enough to own strategy, manage the function, run board communications, and oversee execution. Specific hours depend on company stage, complexity, and engagement scope.