Lonza

Senior Scientist, Downstream

Posted Jan 2, 2026
Job ID: R72390
Location
Houston, TX
Hours/week
40 hrs/week
Payrate range
Unknown

Senior Scientist, Downstream

Location: This is an on-site position located in Pearland, TX.

The purpose of this role is to work in a high performing, cross functional team with the goal of driving innovation in the development of scalable downstream processes related to the manufacture of therapeutic gene therapy products. The ideal candidate will be responsible for leading new process development and improving existing processes. The incumbent will independently design and coordinate the execution of experiments related to the purification of viral based gene therapy products, and be an excellent communicator.

What you will get:

A competitive compensation. In addition, below you will find a comprehensive summary of the benefits package we offer:

  • Performance-related bonus.

  • Medical, dental and vision insurance.

  • 401(k) matching plan.

  • Life insurance, as well as short-term and long-term disability insurance.

  • Employee assistance programs.

  • Paid time off (PTO).

Compensation for this role will be determined by the candidate’s qualifications, skills, experience, and relevant knowledge.

What you will do:

  • Interacts with clients regarding process development scopes and tech transfer activities as well as data discussion and challenge resolutions.

  • Leads and acts as a Study Director for process development studies, process characterization and other key scientific studies. Responsible for tech transfer to manufacturing following Lonza guidelines, provides ongoing supports as needed. 

  • Designs and executes experiments, analyzes data. Authoring study protocols and reports. Maintains accurate & detailed records following Lonza’s best documentation practices. 

  • Contributes and supports scientific and engineering expertise toward the design and development of new downstream process ideas that support client product concepts.

  • Establish collaborative relationships and serve as SME to cross-functional groups (MSAT, MFG, QC, and PM).

  • Mentor and train junior colleagues. 

What we are looking for:

  • PhD or MS in Life Sciences with focus on biology or bioengineering with at least 4-6 years of related process development experience in biotech industry.

  • Experience with development and optimization of viral or protein purification process including chromatography, filtration and formulation unit operations.

  • Experience with the technology transferring of viral or protein related downstream processes to cGMP manufacturing.

  • Experience or knowledge of analytical methods and in process controls commonly used in manufacturing processes.

  • Experience with late-stage process development for viral or protein related downstream process is highly desirable.

About Lonza:

At Lonza, our people are our greatest strength. With 30+ sites across five continents, our globally connected teams work together every day to manufacture the medicines of tomorrow. Our core values of Collaboration, Accountability, Excellence, Passion and Integrity reflect who we are and how we work together. Everyone’s ideas, big or small, have the potential to improve millions of lives, and that’s the kind of work we want you to be part of.

Innovation thrives when people from all backgrounds bring their unique perspectives to the table. At Lonza, we offer equal employment opportunities to all qualified applicants regardless of race, religion, color, national origin, sex, sexual orientation, gender identity, age, disability, veteran status, or any other characteristic protected by law. If you’re ready to help turn our customers’ breakthrough ideas into viable therapies, we look forward to welcoming you on board.

Ready to shape the future of life sciences? Apply now.

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