Office Manager

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 the Office Manager at our King Farm campus, you will play a key role in creating a positive, welcoming, and efficient workplace where people can do their best work. You will help keep daily operations running smoothly while supporting a talented team of scientists developing breakthrough technologies that are transforming lives around the world.

The “Fine Print” – What You’ll Do

• Responsible for overseeing the daily operations of the office, including all facility-related functions, and administrative processes.
• Serve as the primary point of contact for internal departments, external vendors, service providers, and building management.
• Provide high level administrative support to some members of the executive team.
• Ensure adherence to company safety standards and visitor protocols. Regularly communicate updates to stakeholders.
• Perform functions to plan, manage, and direct the overall activities of Facilities, Systems, Equipment, and Utilities to fulfill work requirements.
• Create, process, and track Purchase Orders for office-related services, and manage related contracts to ensure accuracy, compliance, and timely execution of all requests.
• Oversee administrative functions, including scheduling, internal communications, and inventory management.
• Support People functions, including onboarding and managing building access.
• Coordinate company events, meetings, and travel arrangements as required.

What We Look For

• Minimum 5 years of experience in a similar role involving facilities management, administrative and office management support.
• Experience creating and managing Purchase Orders, tracking service requests, and coordinating with external providers.
• A people-oriented mindset with a genuine ability for building relationships and leading initiatives.
• Highly organized with exceptional written and verbal communication skills.
• Strategic thinker with the ability to see the bigger picture while staying detail oriented.
• Demonstrated success in working cross-functionally with stakeholders at all levels.
• Bachelor’s degree in business administration, Management, or a related field preferred.

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 estimated base salary range for this position is $80,000 - $100,000 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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