[Hiring] Growth Lead @Sumble Inc

Role Description

Sumble reaches customers through the web app, our API, CRM integrations, and an MCP server that lets AI agents work directly with Sumble data. Every one of those paths needs to be measured, tested, and grown. Today that work is split across the team. This seat brings it under one owner.

This is a core seat on the new marketing team. We want an engineer-minded marketer who treats growth as a system:

• Design the experiments
• Work closely with product and engineering
• Decide with data what to scale and what to kill

It's a senior individual contributor role with no direct reports, and we're hiring it that way on purpose. You'll have full ownership of the growth number, a real budget for paid media and tools, and the authority to change what doesn't work.

What you'll own

• Email and growth loops (automated)
  • Own lifecycle end to end: onboarding, activation, product-update, upgrade and re-engagement flows for self-serve signups, API and MCP users, and event attendees.
  • Design and ship referral and other compounding loops that turn existing users into new users and pipeline.
  • Build these as systems, not campaigns. They should be triggered by product and account signals, run without you, and be instrumented so you know what each one is worth.
  • Keep the email stack deliverable, clean, and wired to the CRM.
• Paid media (you own it)
  • Own paid acquisition across channels (LinkedIn, search, retargeting, and whatever earns its budget next): strategy, targeting, creative testing, budget pacing, and cost per pipeline.
  • Use Sumble's own account intelligence to aim spend at the accounts and people that matter, and prove it with holdouts and pipeline data, not clicks.
  • Direct agency and freelance partners, and decide what stays outsourced and what you bring in-house or automate.
• GTM stack
  • Own marketing's GTM systems: lead routing and booking, enrichment, website visitor identification, UTMs and conversion tracking, and the data feeding our dashboards.
  • Own attribution from first touch to closed-won. Partner with internal ops on Salesforce (campaign architecture, lead and contact flow, funnel definitions) so leadership trusts the numbers.
  • Prototype internal GTM tools on Sumble's own data and API. Ship the ones that earn their keep, retire the ones that don't, and document what stays.
• Website strategy and conversion
  • Own the website as a growth surface: information architecture, conversion paths, signup and demo flows, and pricing-page and landing-page experiments.
  • Run a standing conversion-test program. Our Content lead owns the words and our designer owns the visual system; you own what we test, how we measure it, and what ships.
  • Ship pages and changes yourself without waiting in an engineering queue.
• Experimentation and measurement
  • Run a weekly test cadence across paid, lifecycle, web and product-adjacent surfaces. Every test has a hypothesis, a metric, a sample size and a kill date.
  • Keep a shared experiment log: what we tried, what happened, and what we decided.
  • Report weekly on the funnel in a form the founders and Sales can act on.

Qualifications

• 5+ years in growth marketing, growth engineering, or a technical demand role at a B2B SaaS, data, or developer-tools company, ideally one with both self-serve and sales-led motions.
• Engineering-fluent. Comfortable working with product, engineering and development teams, knows how they work, and has experimented heavily.
• AI-native in practice. Builds with LLMs and agents (Claude, Cursor, Claude Code, MCP or similar) and can show workflows or tools shipped and still in use.
• Highly experimental, with receipts. Can walk through tests designed, what was learned, what scaled, and what was killed.
• Has owned paid media with real budget and can discuss cost per pipeline, not just CPC.
• Has built lifecycle or growth loops as systems, and understands CRM data models (Salesforce or HubSpot), routing and attribution well enough to fix them.
• Makes decisions with data and explains them clearly to founders, Sales and non-technical teammates.
• A Super IC operating style. Prioritizes ruthlessly and works without waiting for permission.

Nice-to-haves

• Experience selling to technical GTM buyers: RevOps, GTM engineers, sales or marketing ops.
• Hands-on with tools like Clay, plus product analytics and experimentation platforms.
• Experience growing API or usage-based products, or developer adoption of a technical product.
• Has shipped production front-end work: landing pages, signup flows, CMS builds.
• A public body of work: repos, posts or teardowns of experiments run.

Benefits

• Top tier medical, dental, and vision insurance (US)
• 401(k) (US)
• 4 weeks PTO
• Equity in a high-growth, Series A company
• Generous AI token usage policy