Head of Customer Activation

About Cobalt

Cobalt is the infrastructure layer that makes healthcare AI possible. Dozens of high-growth companies rely on us as core infrastructure. We’re the reason their products can connect to healthcare systems at all. When they need to move fast, we’re the team they call.

We’ve built this with a lean, elite team that punches way above its weight. No bloat, no layers, no passengers. Every person here has outsized impact, and we intend to keep it that way as we scale. If you want to do the best work of your career at a company that’s growing fast and building something that actually matters, keep reading.

About the role

Our customers are building products that affect real patient care, and they're on tight timelines. The product doesn't sell itself after the contract is signed. The real work starts at implementation, and how fast we get them live determines whether they succeed.

You'll own everything that happens after a customer signs: onboarding, implementation support, time-to-value, expansion. We're calling this "activation" because that's what it is. Taking a signed contract and turning it into a customer who's live, integrated, and building on Cobalt every day. You'll define and build this function from scratch.

What you’ll do

• ›Design and build the post-sales customer journey from contract to go-live
• ›Own activation metrics: time-to-first-integration, time-to-value, expansion revenue
• ›Work directly with customers to unblock implementations and drive adoption
• ›Build playbooks, processes, and tooling for scalable customer activation
• ›Partner with product and engineering to close gaps between what we sell and what we ship

What we’re looking for

• ›5+ years in customer success, implementation, or post-sales at a B2B SaaS or infrastructure company
• ›You've built a CS or activation function from early stage, not just inherited a mature one
• ›Technical enough to understand API integrations and debug customer issues
• ›Metrics-obsessed. You track leading indicators, not just NPS
• ›You think about customer success as a revenue function, not a support function

Nice to have

• +Experience in healthcare or health tech
• +Background at a developer tools or API-first company
• +Experience managing technical onboarding for complex integrations