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 

• Character: Committed to always doing what’s right.  

• Audacity: Willing to challenge convention and share candid feedback with others.  

• Determination: Curious and self-motivated. Always looking to improve and learn.    

• Collaboration: "No job is too small" mentality. Humble and willing to help others.  

• Originality: Will bring your unique perspective to the table and respect a diverse set of views and backgrounds.  

The “Fine Print” – What You’ll Do  

• Learn the workflow of preclinical development of novel cell therapies  

• Document experimental protocols and data generation in an organized manner  

• Isolate, culture, and phenotype primary immune cells  

• Develop and optimize assays to characterize the functionality of novel CAR T cell candidates 

• Genetic modification of cell lines and primary immune cells 

• Effectively communicate scientific findings to cross functional teams 

Skills and Experience We Look For  

• BS with 1 year post-graduate relevant lab experience or MS in a relevant life sciences program (e.g. biological sciences, microbiology, genetics, biochemistry) 

• Pursuing a graduate degree in Biological Sciences or related disciplines 

• Completed at least one college-level immunology and statistics course 

• Experienced with mammalian cell culture, aseptic technique, PCR, and antibody-based assays (ex ELISAs, flow cytometry, western blotting)  

• Proficient with Graph pad prism and Microsoft Office products such as power point and excel 

• Excellent science communication skills who can work well in a collaborative team setting 

• Ability to work full time on-site at our Rockville, MD site  

 Our ideal candidate is looking to funnel their scientific curiosity to develop the next generation of therapeutics and pursue a career within lab-based cell and gene therapy research and development. This candidate should also have a strong grasp of the scientific method and experience with independent research projects.  

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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