Arcellx is hiring: Manager, Social Media in Redwood City

Join the Manager, Social Media role at Arcellx . About Arcellx 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 a forward pillar of medicine and our mission is to destroy cancer and advance humanity by developing safer, more effective, and more broadly accessible cell therapies. The “Fine Print” – What You’ll Do The Manager, Social Media is a creative and thoughtful communications professional who will focus on elevating and amplifying Arcellx’s corporate and executive thought leadership through social media channels. Develop editorial strategies, curate content, maintain a content calendar, manage reviews, schedule, distribute, and measure performance across all external platforms including graphics, videos, infographics, and long‑form articles. Manage all external digital platforms such as LinkedIn, X, and Glassdoor, ensuring they reflect the latest company developments, research updates, clinical trials, investor relations content, and other corporate information. Collaborate with cross‑functional teams to create fresh, engaging content that represents the company’s innovations and achievements. Craft compelling storytelling that engages audiences internally and externally, and creates a unique point of view for topics relevant to the executive team, company, and members. Skills and Experience We Look For Bachelor’s degree and at least 3+ years of related experience in journalism, digital media, public relations, in‑house, or agency roles; biotechnology or pharmaceutical experience highly preferred. Proven experience and growth on multiple online channels (YouTube, LinkedIn, X, mobile devices). Strong attention to detail, project management, copy editing, and a solid understanding of multimedia and visual storytelling. Ability to take feedback and adapt content quickly in a fast‑paced environment. Capacity to translate complex scientific concepts into engaging content. Rewards at Arcellx The base salary range for this position is $120,000 – $160,000 per year, with an annual bonus tied to company goals and an equity (RSU) grant. Relocation assistance is also offered if required. Benefits include 100% coverage for medical, dental and vision for team members and dependents, unlimited vacation, a 3‑day weekend every month, fully paid parental leave up to 6 months, tuition reimbursement, 401(k) employer contribution, and more. Join us in our quest to reimagine cell therapy and destroy cancer. For more on our technology, culture, and team, visit www.arcellx.com . #J-18808-Ljbffr