There's a moment every SaaS company hits where the early growth feels fragile. You have product-market fit. Customers are renewing. Word of mouth is working. But the path from where you are to where you need to be isn't clear, and the ad hoc experiments that got you here won't get you to the next stage. You need a system. More specifically, you need someone whose entire job is to build that system.
That's the Head of Growth. Not a demand gen manager. Not a VP of Marketing. Not a sales leader. Something that sits between all three, owns the full funnel, and is accountable to revenue outcomes rather than activity metrics.
For SaaS companies at the Series A through Series C stage, this is often one of the most consequential hires on the roadmap. But the role is frequently misunderstood, misdefined, or filled with the wrong person. Hiring managers write job descriptions that describe a senior paid media specialist when they actually need a strategic growth architect. Candidates apply thinking it's a marketing leadership role when it's really a data-driven revenue function.
This guide is built to close that gap. Whether you're a founder or HR leader writing a head of growth job description for a SaaS company, or a growth marketer evaluating whether this career move makes sense, you'll walk away with a clear picture of what the role actually entails, what skills predict success, which metrics matter, and what infrastructure this person needs to do their job well.
The Role That Sits Between Marketing, Product, and Revenue
The easiest way to understand the Head of Growth is to understand what it's not. A VP of Marketing typically owns brand, content, and demand generation. A VP of Sales owns pipeline conversion and quota attainment. Both roles are critically important, but neither owns the full picture of how a customer moves from first awareness to closed deal to retained account.
The Head of Growth owns that entire arc. Acquisition, activation, conversion, and often retention all fall within this role's scope. In B2B SaaS, that means coordinating across channels, teams, and data sources simultaneously to build a repeatable engine for revenue growth.
This is a fundamentally cross-functional position. On any given week, a Head of Growth might be reviewing paid media performance with the marketing team, working with product on improving trial-to-paid conversion, aligning with sales on lead quality, and presenting growth model projections to the CEO. The role requires both the analytical depth to interpret data and the leadership presence to influence teams that don't report directly to them.
Organizationally, this role typically reports to the CEO or CRO. At earlier stages, it often reports directly to the founder. The reporting line matters because it signals the scope of authority and the strategic importance of the function. A Head of Growth buried three levels deep in a marketing org will struggle to drive the cross-functional coordination the role demands.
It's also worth noting that the title itself varies across companies. Some use VP of Growth, others use Chief Growth Officer, and some use Head of Growth. The specific title is less important than the mandate: full-funnel ownership, data-first decision making, and direct accountability to revenue outcomes. When you're writing a SaaS head of growth job description, the title you choose will attract different candidates, so it's worth aligning the title to the actual scope and seniority of the role.
What makes this role distinct from the growth hacking era it emerged from is the emphasis on systematic, sustainable growth rather than clever one-off experiments. In B2B SaaS specifically, viral loops and referral mechanics rarely drive meaningful pipeline. What drives growth is a disciplined approach to channel development, attribution clarity, and funnel optimization grounded in real revenue data.
Core Responsibilities Every SaaS Job Description Should Include
When you're writing the responsibilities section of a head of growth job description for a SaaS company, the goal is to be specific enough to attract the right candidate while avoiding the trap of listing every possible task. Here are the ownership areas that should appear in nearly every version of this role.
Growth strategy and roadmap ownership: The Head of Growth is responsible for defining the company's growth strategy, prioritizing the channels and initiatives most likely to drive revenue, and building the roadmap that the broader team executes against. This is not a delegated function. It requires original thinking backed by data.
Paid and organic acquisition: This role owns the performance of acquisition channels, including paid search, paid social, content, SEO, and often partnerships or product-led growth motions depending on the company's model. Ownership means accountability for results, not just oversight of the team running the channels.
Conversion rate optimization: From landing page to trial to paid, the Head of Growth is responsible for improving conversion at every stage of the funnel. This involves running structured experiments, analyzing results, and implementing changes in collaboration with product and engineering.
Revenue attribution across the funnel: This is where many job descriptions fall short. A strong Head of Growth doesn't just track leads. They track how those leads move through the pipeline, which channels generate the highest-quality pipeline, and how ad spend connects to closed-won revenue. Attribution is not a reporting function. It's an operating function.
Growth modeling and unit economics: Building and maintaining growth models is a core responsibility. This means understanding CAC, LTV, CAC payback period, MRR growth rate, and churn well enough to forecast and make budget allocation decisions with confidence.
Cross-functional experiment coordination: Growth experiments don't happen in isolation. A Head of Growth needs to brief engineering on tracking requirements, align with product on activation hypotheses, and coordinate with sales on lead quality feedback loops. Running this coordination effectively is a core part of the job.
Leadership reporting: The Head of Growth is responsible for synthesizing growth data into clear, actionable reporting for the CEO, board, or executive team. This means translating complex attribution data and funnel metrics into strategic recommendations, not just dashboards.
When you see a head of growth job description that only lists "manage paid media campaigns" and "analyze marketing data," that's a description for a senior individual contributor, not a growth leader. The responsibilities above reflect the full scope of what this role actually owns.
Skills and Qualifications That Actually Predict Success
Not all skills listed in a job description carry equal weight. Here's how to separate the signals from the noise when evaluating candidates for a SaaS Head of Growth role.
Data analysis and attribution modeling: This is non-negotiable. The Head of Growth must be able to build, interpret, and act on complex data sets. Attribution modeling, specifically multi-touch attribution in B2B SaaS, requires an understanding of how customers move through long sales cycles and how to assign credit across multiple touchpoints. Candidates who can only read dashboards built by someone else will struggle in this role.
Paid media fluency: They don't need to be the one running campaigns, but they need to understand how paid channels work well enough to evaluate performance, identify inefficiencies, and make strategic decisions about budget allocation across Google, Meta, LinkedIn, and other relevant platforms.
CRM and analytics tooling: Comfort with tools like HubSpot or Salesforce, combined with analytics platforms, is expected. The ability to pull their own data rather than waiting for a data analyst to build a report is a practical advantage that separates strong candidates from average ones.
SQL and basic engineering communication: These are nice-to-have skills that meaningfully expand what a Head of Growth can accomplish independently. Candidates who can write basic queries and communicate clearly with engineering teams move faster and depend less on technical resources to answer their own questions.
Beyond technical skills, the strategic mindset markers are equally important and harder to assess. Look for comfort with ambiguity: this role rarely has a clear playbook, and the best candidates thrive in environments where they have to build the process as they go. Hypothesis-driven thinking matters. The ability to frame a growth question as a testable hypothesis, design an experiment, and interpret results is a core operating pattern for this role.
Perhaps most importantly, look for a track record of scaling channels, not just managing them. There's a significant difference between a candidate who maintained a paid search program and one who built it from a small budget to a meaningful revenue contribution. The former is a manager. The latter is a growth leader.
Domain expertise in B2B SaaS specifically matters more than many hiring managers realize. B2B sales cycles are often 30 to 180 days or longer depending on deal size and complexity. This fundamentally changes how attribution works, how experiments are evaluated, and how success is measured. A candidate with strong consumer growth experience may be technically skilled but unprepared for the multi-touch attribution complexity and longer feedback loops that define B2B SaaS growth.
The Metrics a Head of Growth Owns and Reports On
One of the clearest ways to evaluate whether a candidate is right for this role is to ask them which metrics they own and why. The answer reveals how they think about growth and whether they understand the difference between activity metrics and outcome metrics.
The north star metrics for a Head of Growth in B2B SaaS typically include MRR growth rate, new logo acquisition, CAC payback period, and pipeline contribution by channel. These are the numbers that connect growth activity to business outcomes and that the CEO and board actually care about.
MRR growth rate is the headline number. It tells you whether the growth engine is working at a macro level and whether the company is on track to hit its targets.
New logo acquisition measures the effectiveness of acquisition channels in generating net new customers, separate from expansion revenue. This is a critical distinction in SaaS where retention and expansion can mask weak acquisition performance.
CAC payback period is the unit economics metric that determines whether growth is sustainable. A Head of Growth who can improve payback period without sacrificing growth rate is creating compounding leverage for the business.
Pipeline contribution by channel is where attribution data becomes essential. This metric answers the question every growth leader needs to answer: which channels are actually generating pipeline that closes, not just leads that disappear?
Here's where many growth functions break down. If a Head of Growth is relying on last-click attribution or platform-native reporting from Meta or Google, they're looking at a distorted picture. Each platform will claim credit for conversions that the other platforms also influenced. In a B2B SaaS context with long sales cycles and multiple decision-makers, the gap between platform-reported results and actual revenue attribution can be significant.
Multi-touch attribution and customer journey data become the operating system for this role. When a Head of Growth can see exactly how a prospect moved from a LinkedIn ad to an organic search to a demo request to a closed deal, they can make confident budget decisions. Without that visibility, budget allocation defaults to gut feel, which is exactly the reactive posture this role is supposed to eliminate.
Surface-level metrics like click-through rate, cost per click, and even cost per lead are useful diagnostic signals, but they should never be the primary reporting currency for this role. A strong Head of Growth pushes the reporting layer down to revenue and uses the surface metrics to diagnose why revenue attribution is trending in a particular direction.
How to Structure the Hiring Process and Compensation
Writing a strong head of growth job description is only the first step. The hiring process itself needs to be designed to surface the right signals.
At the resume screening stage, look for growth outcomes rather than responsibilities. A resume that says "managed paid search campaigns with a $500K monthly budget" tells you very little. A resume that says "scaled paid search from $50K to $500K monthly while reducing CAC by 30%" tells you the candidate thinks in outcomes. The specific numbers matter less than the orientation toward results.
In the interview process, a take-home growth audit or channel prioritization exercise is one of the most effective evaluation tools available. Give candidates a realistic (but anonymized) data set from your business and ask them to identify the highest-leverage growth opportunities and explain their reasoning. This exercise reveals analytical depth, strategic thinking, and communication clarity all at once.
Reference checks should confirm two things specifically: whether the candidate built things or managed things that were already built, and whether they were effective at cross-functional influence without direct authority. Both are hard to fake and both are critical for success in this role.
On compensation, a Head of Growth in B2B SaaS at the Series A through Series C stage will typically expect a package that includes base salary, equity, and performance-based components. The specific numbers vary significantly by geography, company stage, and the scope of the role. What's consistent is that equity is a meaningful part of the conversation at this level, and performance bonuses tied to growth metrics are common. If your compensation structure doesn't include equity, you'll have a harder time attracting candidates who have the strategic profile this role requires.
Two common hiring mistakes are worth flagging directly. The first is promoting a strong paid media specialist into this role before they've developed the strategic breadth to run a multi-channel growth function. Paid media expertise is valuable input to this role, but it's not sufficient preparation for the full scope of it. The second is hiring someone with consumer growth experience for a B2B SaaS context. Consumer growth playbooks, viral mechanics, referral loops, and rapid experimentation cycles don't translate cleanly to B2B environments with long sales cycles, complex buying committees, and multi-touch attribution requirements.
The Tools and Data Infrastructure This Role Depends On
Hiring the right Head of Growth is necessary but not sufficient. The tools and data infrastructure you give them determine whether they can actually do the job.
The core tech stack a Head of Growth needs to be effective includes ad platforms like Google Ads and Meta, a CRM such as HubSpot or Salesforce, a marketing attribution platform, and a customer data layer that connects all three. Each component serves a different function, and gaps in any one of them create blind spots that limit decision-making quality.
The ad platforms are where budget is deployed and where campaign performance is tracked at a surface level. The CRM is where lead and pipeline data lives. The attribution platform is what connects the two, translating ad activity into pipeline and revenue outcomes that can actually inform budget decisions.
The quality of the attribution layer is the single biggest determinant of how confidently a Head of Growth can operate. Without accurate attribution data, every budget decision is an educated guess. With it, budget allocation becomes a data-driven process where winning channels get scaled and underperforming ones get cut or restructured.
The most common gap in this infrastructure is relying on platform-native reporting. When you let Google tell you how Google is performing, or Meta tell you how Meta is performing, you're getting a biased view. Each platform optimizes for its own attribution window and takes credit for conversions that were influenced by multiple touchpoints. A Head of Growth who makes budget decisions based on platform-reported ROAS is working with systematically distorted data.
This is where a platform like Cometly becomes directly relevant to this role. Cometly gives a Head of Growth a single source of truth by connecting ad spend across channels to pipeline and closed-won revenue. Instead of reconciling conflicting reports from multiple platforms, they can see exactly which campaigns and channels are generating pipeline that converts, with multi-touch attribution that reflects the full customer journey rather than just the last click.
Cometly's AI-driven insights go further by surfacing which ads and campaigns are performing across every channel, enabling confident scaling decisions rather than reactive budget shifts. And because it connects directly to the CRM and revenue data, the Head of Growth can report to leadership with attribution data that actually reflects business outcomes, not platform-reported proxies.
When you're building the infrastructure for this role, the attribution layer is not optional. It's the foundation on which every other decision the Head of Growth makes is built.
Putting It All Together
The Head of Growth is one of the highest-leverage hires a SaaS company can make at the right stage. But the emphasis belongs on "right stage" and "right definition." This role works when the company has product-market fit, when the job description reflects the full strategic scope of the position, and when the data infrastructure exists to support the decisions this person needs to make.
A well-written head of growth job description for a SaaS company sets expectations clearly: full-funnel ownership, revenue attribution accountability, cross-functional leadership, and a data-first operating style. It attracts candidates who have built things, not just managed them, and who understand the specific complexity of B2B SaaS growth.
But the job description is only the starting point. The tools you give this person determine whether they can succeed. A Head of Growth without clean attribution data is navigating without a map. They'll make decisions, but they'll make them with less confidence and less accuracy than the role demands.
If you're building or optimizing the growth function at your SaaS company, the attribution infrastructure is where to start. Get your free demo and see how Cometly connects your ad spend to pipeline and revenue, giving your Head of Growth the single source of truth they need to scale with confidence.
