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Assistant Process Scientist

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Assistant Process Scientist

Celldex

Assistant Process Scientist

3 months ago

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Important information


Contract type:

Permanent

Location:

Fall River, MA, USA

Work mode:

Hybrid

Published on:

7 August 2026

What they need


Celldex is pioneering new horizons in immunology to deliver life-changing therapies. We are relentless in our pursuit of novel antibody-based treatments that engage the human immune system and directly affect critical pathways to improve the lives of patients with allergic, inflammatory and autoimmune disorders. We have built a culture 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. In our highly entrepreneurial environment, employees are empowered and the opportunity for professional development occurs every day.

Overview The Assistant Scientist/Engineer is part of the upstream process development team responsible for the development, scale-up, and transfer of mammalian cell-culture (CHO) for GMP manufacturing. The Assistant Scientist/Engineer will be responsible for maintaining mammalian cell lines to produce research and pre-clinical products and ensuring scale-up to pilot plant manufacturing cGMP.

Responsibilities

  • Screen cell lines and clones for optimal protein production
  • Monitor cell growth
  • Identify growth medium requirements and develop feeding strategies for scaling up from development to pilot-scale manufacturing
  • Produce mAbs and bsAbs for pre-clinical testing
  • General lab and equipment maintenance
  • Media and buffer preparation
  • Opportunities to cross-train in downstream and analytical process development activities
  • Ability to analyze and summarize scientific data
  • Maintain lab notebook and adhere to good documentation practices (GDP)

Qualifications

  • A.S or Certificate in Biotechnology, Biology, Bioengineering, or related field is required. B.S. is preferred
  • Practical experience in aseptic technique
  • Mammalian cell culture experience preferred
  • GMP experience is a plus
  • Strong interpersonal and communication skills
  • Flexibility in work hours, including availability for weekends as needed
  • Ability to work individually and collaborate with others
  • Ability to adapt in a rapidly changing environment
  • Willing to travel occasionally

Compensation The expected base salary range for this position is $57,750 to $75,000

We are committed to compensating employees equitably based on several factors including experience, education, licensure/certifications, skill level, location of the position, and availability of similar talent in a competitive market.

Compensation for this role includes base salary, annual discretionary bonus, long term incentive, 401(K) plan with employer contribution, health care and other insurance benefits (for employee and family), paid holidays, vacation, and sick days. A summary of our benefits can be found on our careers page.

Celldex is proud to be an equal opportunity employer that strives to foster a culture of diversity, equity, and inclusion. We are committed to promoting a diverse environment through development, recruiting and community outreach.

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