Chief of Staff

Who We Are

Arcellx is a public, clinical-stage biotechnology company reimagining cell therapy by engineering innovative immunotherapies for patients with cancer and other incurable diseases. We believe that cell therapies are one of the forward pillars of medicine and our mission is to destroy cancer and advance humanity by developing cell therapies that are safer, more effective, and more broadly accessible.

Our team members are made up of talented innovators and dreamers working from our offices in Rockville, Maryland, and Redwood City, California. At Arcellx, we hire exceptional people and create a fun, diverse, supportive, and informal environment that allows everyone to do their best work.

What Matters to Us

Living our core values is essential to maintaining a work environment that is high-performing, inclusive, and collaborative. We look for candidates who demonstrate strong values alignment and bring different backgrounds, viewpoints, and abilities to the team.

Arcellx Core Values

• Start with authenticity: We foster an inclusive environment where each person can bring their authentic self to work.

• Think ‘we’ before ‘me’: We prioritize collective success, collaborating and supporting one another to achieve our shared goals. 

• Embrace the challenge: We deliver exceptional results by working with shared determination and a commitment to doing what’s right.

How You’ll Make a Difference

As our Chief of Staff, you’ll serve as an extension of the CEO—helping to prioritize initiatives, prepare for key decisions, streamline communication across the leadership team, and ensure alignment between strategy and execution. You will have a unique vantage point across the business, working closely with the executive team, Board of Directors, and external partners. Your our work in this role will help drive our mission and get our transformative therapy to patients in need.

The “Fine Print” – What You’ll Do

• Partner with the CEO and executive team to define and operationalize company strategy and goals.
• Lead or support cross-functional strategic initiatives that require executive sponsorship and coordination.
• Champion the company’s values and help cultivate a high-performance, collaborative culture.
• Partner with functional leaders to align efforts and track progress against strategic milestones.
• Assist in managing the CEO’s priorities, schedule, and briefing materials to maximize impact and focus.
• Draft communications, presentations, and strategic updates for internal and external audiences.
• Support Board meeting preparation, including quarterly decks, talking points, and data synthesis.

Skills and Experience We Look For

• Bachelor’s degree required; advanced degree in the life sciences / healthcare (MBA or PhD) strongly preferred.
• 6+ years of experience in healthcare/biotech/pharma consulting, strategy, banking, or investor relations. With an advanced degree, 4+ years are ideal.
• Proven ability to lead cross-functional initiatives and influence senior leaders.
• Exceptional written, verbal, and visual communication skills.
• Highly organized, with the ability to manage multiple complex projects simultaneously.
• Comfortable operating in a constantly evolving biotech environment.
• High integrity, sound judgment, and discretion handling sensitive information.

Rewards at Arcellx

Our people are our greatest asset, and supporting their well-being is an essential part of delivering on our mission and impacting the lives of patients. Putting this belief into practice means offering strong compensation and benefits.

The base salary range for this position is $160,000 - $230,000 per year. Where a candidate falls within that range is determined by factors such as years of experience. Our compensation package also includes an annual bonus based on company goals and an equity (RSU) grant. We do offer relocation assistance for roles if required.

Our market-leading benefits package includes: 100% coverage for medical, dental and vision for team members and dependents, unlimited vacation, a 3-day weekend every month, fully-paid parental leave for up to 6 months, tuition reimbursement, 401k employer contribution and more. 

Join us in our quest to reimagine cell therapy and destroy cancer. For more on our technology, culture, and team, go to www.arcellx.com.

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