The Role

The CEO's time is the company's most constrained resource. This role exists to protect it.

You'll own his calendar, his inbox, and the follow-through on every conversation he walks out of. You'll project-manage other people's commitments back to closure. You'll write on his behalf in a voice that sounds like him. We need someone senior enough to land running — not someone who needs ramp time to learn the principal.

You will not be building org-wide systems. You will be running the ones that already exist, and running them better than he does today.

Think: the best event planner you know. Two steps ahead. Owns the timeline. Handles the friction before the principal sees it.

The Work

Own the CEO's calendar — protect focus time, sequence the day, defend the gates
Triage his inbox; respond directly where you can, escalate what actually needs him
Draft emails, memos, and client/sponsor comms in his voice
Track every commitment that leaves his mouth and chase it to closure
Run logistics for sponsor meetings, client visits, travel, leadership offsites
Coordinate across the leadership team (COO, Lab Director, Site Partnerships) on shared timelines
Prep him for meetings — agenda, background, the question he should be asking
Handle personal logistics as needed (travel, expenses, occasional errands)

What we're looking for

5+ years as the primary EA to a CEO, founder, or managing partner
Demonstrated history of running a single principal's calendar, inbox, and follow-through end-to-end — not splitting an exec team across multiple EAs
PM instincts. You track things to closure without being reminded
Strong writing. You can ghostwrite a three-sentence client email that sounds like the principal, not like you
Calendar management is second nature, including managing competing high-priority asks
Judgment about what rises to the principal and what doesn't
Comfort working in ambiguity and shifting priorities on short notice
Discretion with confidential business, client, and personal information
LA-based; in-office cadence required (this role doesn't work remote)

What we're not looking for

A Chief of Staff in disguise. This is executive support, not strategy
A system-builder. We have separate plans for org infrastructure
A first-time EA-to-CEO. We're not the company you grow into this role at
Someone who treats direct feedback as a personality conflict
A career stepping-stone seeker. We want someone who wants to do this role exceptionally well

About RDI

At RDI Trials, we're building a different kind of CRO.

We are an IVD-focused contract research organization. Since 2008 we've run 300+ diagnostic trials for the largest test makers in the world.

This is not a traditional, process-heavy environment.

We are a small team that moves fast and expects people to take real ownership. There's no passing things along or waiting for direction. If something needs to get done, you step in and figure it out.

The pace is high. The expectations are high. But for the right person, it's a place where you can learn quickly and have real impact.

Health Care Plan (Medical, Dental & Vision)
Retirement Plan (401k, IRA)
Life Insurance (Basic, Voluntary & AD&D)

Paid Time Off (Vacation, Sick & Public Holidays)

Learn more about this Employer on their Career Site

Executive Assistant