Job Description - Growth Marketing Manager

Location: San Francisco, CA (Hybrid: 2–3 days/week in office)
Type: Full-Time

About Onos Health

Onos Health’s mission is simple but ambitious: ensure every healthcare dollar goes toward delivering the highest quality care. Today, 30% of total U.S. healthcare spending is wasted due to ineffective care and administrative burden caused by misalignment between providers and payers.

Onos is addressing this by building the largest AI-driven healthcare data platform. Our models enables payers to make faster, more accurate decisions across their populations. By guiding members to the right care, Onos is channeling more dollars to high-quality care that drives outcomes while making healthcare more affordable.

Onos recently closed a $6M Seed round with top-tier investors and is already working with some of the nation’s largest health plans, signing its first national plan just months after launch.

We are now hiring our first marketing leader to join the founding team and report directly to the CEO. This is a unique opportunity to build a marketing function from the ground up and shape our commercial strategy. Come join a fast-growing, category defining business and help reimagine the future of healthcare.

Why Onos?

• Meaningful impact: Help fix what is fundamentally broken in healthcare

• Direct collaboration: Work alongside experienced founders with deep healthcare expertise

• Culture: Join a high-performing, transparent, and results-oriented team

• Ownership: Significant responsibility for commercial strategy from day one

• Opportunity: Build and lead the marketing function for a incredibly fast growing, category-defining business

The Role

This is a unique opportunity to define and execute Onos’ marketing strategy from the ground up, owning everything from brand positioning and messaging to campaigns, content, and events. You’ll work closely with the CEO and leadership team, with direct exposure to enterprise health plan clients, advisors, and investors.

This role is ideal for someone who is scrappy and thrives in a fast-paced startup, enjoys wearing multiple hats, takes full ownership to get things done, and is eager to build a marketing function that can scale with the company.

What you'll be doing at Onos:

• Strategy & Planning: Develop Onos Health’s marketing strategy across brand, digital, content, and events.

• Execution: Lead the end-to-end execution of campaigns, website updates, social presence, and marketing collateral.

• Content Development: Write and refine thought leadership, case studies, newsletters, and LinkedIn content to position Onos as a category leader.

• Brand Management: Ensure consistent messaging and visual identity across all external channels.

• Event Leadership: Plan and coordinate conferences, webinars, and speaking engagements, including logistics and follow-up.

• Build: Scale the marketing function and team as Onos grows.

What we're looking for:

• 4–6 years of professional experience in marketing and commercial functions, ideally in B2B SaaS startups

  • Bonus points if you have significant experience working in Healthcare and specifically working with health plans

• Strong ability to own both strategy and execution—you can design an effective marketing strategy and roll up your sleeves to run it.

• Exceptional writing and storytelling skills, with experience tailoring messages & branding for investors and industry stakeholders.

• Strong organizational and project management skills; thrives on balancing multiple priorities in a fast-paced environment.

• Entrepreneurial mindset: scrappy, proactive, and resourceful

• Exceptional references from peers and former managers

Benefits and Perks

• Flexible hybrid arrangement: ~2-3 days/week at San Francisco office (Financial District)

• Unlimited vacation policy

• Paid parental leave

• Medical, dental, and vision insurance

• Pre-tax commuter benefits

• 401(k)

• Significant equity as an early employee

• Direct mentorship from experienced founders

• Ground-floor opportunity to help build a team and culture

• Regular team events and offsites

• Company-provided equipment and home office setup

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.