Senior Executive Assistant

About Circadia Health
Circadia Health is a growth-stage healthcare AI company on a mission to prevent avoidable hospitalizations and transform senior-care operations. Our Circadia Intelligence Platform combines:

Contactless sensing that monitors respiration and motion with medical-grade accuracy

Native predictive models that detect 85% of preventable adverse events several days in advance

Enterprise integrations that operationalize predictions directly inside EHR, care-coordination, billing, and compliance workflows

Today, our technology touches 40,000+ post-acute patients daily across skilled-nursing, home-health, and home-care networks. We are backed by leading healthcare and AI investors and headquartered in El Segundo, CA.
The Role
You'll work directly with our CEO and the Strategy & Ops lead in the Office of the CEO. Your job is to maximize how the CEO allocates his time and energy — what earns a slot on the calendar, what gets delegated, what needs to move from the back burner to the front burner. You're a proactive partner in a fast-paced, high-volume, constantly evolving environment, and you'll act as a trusted extension of the CEO with our board, investors, customers, and team.
You'll also be building the playbook as you go — the EA processes, systems, and documentation that make executive support at Circadia repeatable, not personality-dependent. And you'll become the navigator of the company: the person who knows who to reach out to for everything, and who everyone trusts to get them to the right place.

What you'll do

Being a proactive partner and managing the CEO's time in a fast-paced, high-volume environment:

Owns and drives the calendar and complex meeting scheduling
Coordinates end-to-end travel — flights, hotels, ground transportation, directions, commute time — so the CEO never thinks about logistics
Processes expenses on a timely basis and keeps the small stuff from piling up

Building the machinery, not just running it:

Creates processes and playbooks for EA work — travel, board prep, meeting cadences, inbox and follow-up systems — so support scales as we do
Documents how things get done and improves them as you go; what you build becomes the standard for the admin team

Being the navigator:

Knows who owns what across the company and who to reach out to for everything
Helps anyone in the company get unblocked: routing questions, making connections, keeping threads from dying
A trusted partner not only to the CEO but to everyone in the company — people come to you because things happen when they do

Building effective working relationships with key stakeholders (this will be crucial to your success):

The CEO — understands his priorities and exercises sound judgment to make the right trade-offs on his behalf
Board members, investors, and their assistants — facilitates scheduling and communications with friendly professionalism and high attention to detail
The exec team and Office of the CEO — obtains and shares information, keeps threads moving, helps everyone navigate the CEO's time

Proactively leaning in to support high-leverage activities (this will vary by need):

Preparing and proofreading materials — board decks, briefings, correspondence
Board meeting and investor logistics
Coordinating with the admin team to plan team offsites, town halls, and team events
Additional items that you (or the CEO) feel may be useful — be creative and think outside the box

What We're Looking For

Minimum of 5 years of EA experience supporting C-suite executives at startups, in a fast-paced environment
Proven ability to operate with discretion, sound judgment, and high EQ in sensitive or ambiguous situations
Exceptional communication skills — you write, speak, and represent with polish and precision
Exceptional attention to detail — you sweat the small stuff and take pride in polished output
Positive attitude — brings energy that lifts the room, even on the hard days
A natural relationship-builder — earns trust with everyone in the company, and remembers the details that matter with board members' assistants, key clients, and partners
Frequent user of AI productivity tools — you already work with ChatGPT/Claude/Notion AI or similar to move faster, and you're curious about what else they can do
Bachelor's degree, strongly preferred

Especially Valuable

Experience supporting a founder/CEO through a growth stage (Series B–D)
Experience mentoring junior admin staff or leading an admin function
Healthcare or tech exposure