Careers & Culture
Our Culture
Celldex is a great place to work. We have built an environment where innovative and talented people thrive—focusing a significant effort on attracting and retaining passionate and motivated employees who want to play a role in helping people with serious health conditions and who see this effort as personally rewarding.
We have a highly entrepreneurial environment where employees are empowered and where recognition and the opportunity for professional development occur every day. In addition to our daily work functions, we promote engagement and collaboration through social, wellness, and team building activities.




Hear from our employees what it’s like to work at Celldex!
Our Benefits
We pride ourselves on offering a competitive benefits package to meet the personal and
professional needs of our team members and their families.
Health and Wellness
- PPO Medical, Dental and Vision Plans with generous company contribution
- Medical Plan includes telemedicine and wellness incentives
- Dental Plan includes adult and child/ren orthodontia benefit and the opportunity to rollover funds
- Flexible Spending Accounts (Health, Dependent Care, and Transit)
- Employee Assistance Program
- Pet Insurance Group Discount
- Internal wellness activities – Paint Night, Yoga, Book Swap, Local 5K
Financial Benefits
- 401(K) with company match, immediate vesting
- Employee Stock Purchase Plan with 15% discount
- 100% company-paid Life Insurance, AD&D, Short-Term Disability and Business Travel Insurance
- Competitive pay and stock programs
Professional Opportunities
- Employee recognition program
- Company-sponsored conferences and memberships
- Tuition reimbursement program
- Leadership development
Time Away
- Generous vacation time and rollover
- 11 paid company holidays per year, plus 1 floating holiday
- Flexible Schedule
Our Commitment to Diversity
Celldex is committed to fostering a culture of diversity and inclusion. Our Employee Resource Group (ERG) is an employee led group focused on supporting employee learning, engaging in local community outreach, and working towards ensuring a diverse talent pipeline in biotech. Highlighted below are some of the initiatives the ERG has led to promote these goals at Celldex.
Speaker Series on Unconscious Bias, LGBTQ+ Experiences and Identities, Practicing Self Care, Collaborating Effectively Across Generations, and the Intersection Between Generations and Racial Equity
Visiting or hosting neighboring school districts and organizations to provide exposure and mentorship to students interested in STEM
Employee workshops on topics such as Diversity, Inclusion & Allyship, Mental Health at Work, and Neurodiversity in the Workplace
Resource library with ERG recommended content and the opportunity to engage in book club discussion
Collaboration on internship opportunities with Rutgers University, Raritan Valley Community College, and Bristol Community College.
Celebrating the diverse voices and perspectives in our Celldex community, including through the Diverse Perspectives Blog on our Company intranet
Join Our Team
Celldex is always looking for passionate and talented individuals to join our team. Please explore our open positions and find your fit on our team. We encourage you to check back frequently as we regularly post new opportunities.
Get a glimpse into our culture by connecting with us on LinkedIn and X/Twitter
LinkedIn X / Twitter