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Sr. Scientist, Biologics Engineering

Biogen


Job Location:

Cambridge, MA - USA

Monthly Salary: $ 124000 - 166000
Posted: 21 August 2026 (Yesterday)
Application Deadline: 18 November 2026
Vacancies: 1 Vacancy

Job Summary

About This Role

The BioDesign group at Biogen is seeking an experienced and highly motivated scientist to contribute to the discovery and development of innovative biologic therapeutics. The Sr. Scientist will contribute to multiple research programs through the design engineering and expression of recombinant proteins including antibodies and other biologic modalities. Leveraging expertise in molecular biology protein engineering and mammalian cell engineering this individual will balance hands-on laboratory research with oversight of external protein production efforts at CROs while collaborating across multidisciplinary project teams to advance the therapeutic pipeline

What Youll Do

  • Design engineer and express recombinant proteins and antibodies including bispecifics and novel fusions using transient and stable expression platforms.

  • Develop stable CHO cell lines for antibody expression as well as mammalian cell lines and reporters to support antibody discovery screening and lead optimization.

  • Support protein purification and characterization activities including assessment of antibody binding and cell-surface target engagement using flow cytometry

  • Manage all aspects of protein production activities at CRO

  • Actively contribute to project strategy and experimental design and regularly present findings at team meetings

  • Document experimental work clearly and completely in electronic lab notebooks and technical reports

Who You Are

You are an independent and innovative scientist with strong expertise in molecular biology antibody engineering and mammalian cell culture. You enjoy working in a collaborative team-oriented environment and are motivated by solving complex scientific challenges. You have a track record of scientific achievement strong communication skills and the ability to balance multiple priorities while contributing to shared team goals

Required Skills

  • Ph.D. in biochemistry or a related field with 2 years experience industry experience or a Masters degree with 6 years relevant industry experience.

  • Strong expertise in molecular biology and protein engineering with demonstrated experience designing antibodies and novel antibody-based formats including biospecifics and fusion proteins

  • Hands-on experience developing and executing mammalian cell culture transfection and expression workflows for recombinant antibody production

  • Competence in protein purification and in vitro analytical characterization techniques (e.g. SEC Octet)

  • Experience characterizing antibody binding specificity and cell-surface target engagement using flow cytometry (FACS)-based assays.

  • Track record of managing CRO relationships and external protein production

  • Strong organizational skills and attention to detail

  • Excellent communication and data presentation skills

Preferred Skills

  • Direct experience with antibody-oligonucleotide conjugates and other complex modalities.

  • Expertise in advanced cell engineering technologies including lentiviral transduction and gene editing technologies.

  • Familiarity with mass spectrometrybased characterization of antibody therapeutics and engineered biologics


Job Level: Management


Additional Information

The base compensation range for this role is: $124000.00-$166000.00


Base salary offered is determined through an analytical approach utilizing a combination of factors including but not limited to relevant skills & experience job location and internal equity.


Regular employees are eligible to receive both short term and long-term incentives including cash bonus and equity incentive opportunities designed to reward recent achievements and recognize your future potential based on individual business unit and company performance.


In addition to compensation Biogen offers a full and highly competitive range of benefits designed to support our employees and their families physical financial emotional and social well-being; including but not limited to:

  • Medical Dental Vision & Life insurances
  • Fitness & Wellness programs including a fitness reimbursement
  • Short- and Long-Term Disability insurance
  • A minimum of 15 days of paid vacation and an additional end-of-year shutdown time off (Dec 26-Dec 31)
  • Up to 12 company paid holidays 3 paid days off for Personal Significance
  • 80 hours of sick time per calendar year
  • Paid Maternity and Parental Leave benefit
  • 401(k) program participation with company matched contributions
  • Employee stock purchase plan
  • Tuition reimbursement of up to $10000 per calendar year
  • Employee Resource Groups participation

Why Biogen

We are a global team with a commitment to excellence and a pioneering spirit. As a mid-sized biotechnology company we provide the stability and resources of a well-established business while fostering an environment where individual contributions make a significant impact. Our team encompasses some of the most talented and passionate achievers who have unparalleled opportunities for learning growth and expanding their skills. Above all we work together to deliver life-changing medicines with every role playing a vital part in our mission. Caring Deeply. Achieving Excellence. Changing Lives.


At Biogen we are committed to building on our culture of inclusion and belonging that reflects the communities where we operate and the patients we serve. We know that diverse backgrounds cultures and perspectives make us a stronger and more innovative company and we are focused on building teams where every employee feels empowered and inspired.Read onto learn more about Biogen.


All qualified applicants will receive consideration for employment without regard to sex gender identity or expression sexual orientation marital status race color national origin ancestry ethnicity religion age veteran status disability genetic information or any other basis protected by federal state or local law. Biogen is an E-Verify Employer in the United States.


Required Experience:

Senior IC


About Company

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Founded in 1978, Biogen is a leading biotechnology company that pioneers innovative science to deliver new medicines to transform patientsÂ’ lives and to create value for shareholders and our communities. We apply deep understanding of human biology and leverage different modalities, ... View more

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