Director, Downstream Process Development

BioSpace; South San Francisco (CA); On-site; USD 190,000 - 270,000; Full time

Job summary

Marea Therapeutics, based in South San Francisco, seeks a Director of Downstream Development to lead end-to-end CHO‑derived monoclonal antibody downstream processing, scale-up, and tech transfer. You will work closely with CDMOs and internal teams to enable late-stage development and regulatory submissions.

The role requires hands-on leadership in a lean startup environment, on-site presence at least three days per week, and collaboration across Regulatory, Quality, and Analytical groups to

Qualifications

• Minimum 8+ years with PhD or 10+ years with BS/MS in Biotech/Pharma, downstream bioprocess development.
• Experience scaling, tech transfer, and CDMO collaboration for CHO-derived mAbs.
• cGMP knowledge in a virtual manufacturing setting with outsourced production.
• Strong technical writing and data analysis for regulatory support.
• Excellent communication and stakeholder management with CDMOs.
• Ability to work on-site with flexibility and timelines.

Responsibilities

• Develop downstream process conditions and unit operations for CHO-derived monoclonal antibodies.
• Oversee tech transfer and scale-up from clinical to commercial manufacturing.
• Provide technical oversight of CDMO activities and troubleshoot deviations and CAPAs.
• Develop control strategies and data packages for comparability and regulatory submissions.
• Collaborate with Drug Product, Analytical, Quality, Regulatory, Clinical Development and Project Management teams.

Education

PhD or BS/MS in Biotech/Pharma with relevant downstream experience

Job description

About The Company

Marea Therapeutics is a clinical-stage biotechnology company based in South San Francisco with a growing pipeline of first-in-class therapies to address genetically validated cardioendocrine disease targets. Our therapies have the potential to serve as transformative treatment options for significant patient populations living with cardioendocrine diseases.

About The Company

Marea Therapeutics is a clinical-stage biotechnology company based in South San Francisco with a growing pipeline of first-in-class therapies to address genetically validated cardioendocrine disease targets. Our therapies have the potential to serve as transformative treatment options for significant patient populations living with cardioendocrine diseases.

The company’s lead program, MAR001, is being developed for the treatment of severe hypertriglyceridemia (sHTG), a condition characterized by very high triglyceride levels and elevated risk of acute pancreatitis. Preclinical models with MAR001 demonstrated reduction in triglycerides, remnant cholesterol and ectopic fat, and improved insulin sensitivity. MAR001 has demonstrated strong and a differentiated profile in patients and is approaching Phase 3 development. Our second clinical asset, MAR002, is a monoclonal antibody targeting excess growth hormone produced by the pituitary gland in the rare hormonal disorder, acromegaly. MAR002 has potential to become best-in-disease and is quickly progressing into Phase 2/3 clinical development. We also have a third asset that is swiftly advancing through research discovery, with DC nomination expected this year.

At Marea, we believe in the power of collaboration and the importance of leading by example. We are a tight-knit team that values the contributions of every member, from interns to senior leaders. Our environment is dynamic, with each day presenting new challenges and opportunities for growth. Every role is "Hands-On", and the successful candidate will be able to work alongside team members, regardless of level, to understand challenges and drive results.

About The Role

This is a key role within our Technical Operations team as we aggressively advance our first program towards late-stage development and our second program into early-stage clinical development. This role will report to the VP of Technical Development.

The Director of Downstream Development will play a critical technical role focused on all aspects of downstream process development, scale-up from clinical to commercial scale, tech transfer of the process from one CDMO to another, operational and technical oversight of the CDMO, process troubleshooting and improvement, and generation of suitable technical data packages to support comparability assessment and eventual regulatory submissions. It is expected that the individual will also work closely with the drug product and analytical teams and, eventually, across the entire technical operations and Marea project team to support the overall development of the two programs. This role will also develop and maintain the economic model for the dowsntream process for each of our programs.

It is expected that we will operate in a very lean environment and leverage the technical resources of the CDMO in addition to consulting and advisory resources to help us achieve our CMC development goals in support of the larger program milestones. We expect this candidate to be hands-on as needed and adaptable to the evolving needs of a start-up.

This is a fulltime, South San Francisco-based position with the expectation of working on site at least three days per week.

Key Responsibilities

• Develop downstream process conditions with key parameters specified, leveraging the CDMO process platform adapted to our specific monoclonal antibody
• Identify, evaluate, and qualify unit operations, raw materials, equipment, sampling plan and in-process testing and overall control plans for the downstream process (Seed train, inoculum train, bioreactor and harvest) with thoughtful integration into the overall manufacturing process from seed train to final vial
• Design and oversee studies/activities necessary for process optimization and continuous improvement to assure robust and cost-effective manufacturing processes
• Provide technical oversight of the development and manufacturing activities at the CDMO
• Develop process and control strategies with an eye towards consistent and reproducible manufacturing processes and final drug substances
• Support manufacturing deviations, OOS, investigations, root cause analysis, and CAPAs, as necessary
• Manage and execute troubleshooting activities, as necessary
• Transfer manufacturing operations to new CDMOs as part of the overall project plan to ensure supply chain reliability
• Support the Drug Product Process Development group with material supply and some analytical support
• Develop technical content suitable for internal quality processes and regulatory submissions
• Contribute to preparation and review of regulatory documents for submission to FDA and other regulatory authorities
• Identify and utilize expert consultants to help address key technical questions
• Build and maintain a strong cooperative working relationship with colleagues in Drug Product, Analytical, Quality, Regulatory, Clinical Development, Project Management, and Legal
• Must have ability to travel to CDMO sites (Average 10-20% of the time with peak needs during certain critical windows)
• Internal laboratory work, not expected immediately, but may be needed in the future.
• Develop cost model for the downstream process

Qualifications

• PhD in Chemical Engineering or Microbiology, Biology or a related discipline with a minimum >8 years of relevant experience or BS/MS with >10 years of relevant experience in Biotech/Pharma industry with hands‑on background and experience in downstream bioprocess development
• Specific experience with developing, scaling up, tech transferring downstream processes for CHO‑derived monoclonal antibodies
• Previously experience of having worked with CDMOs with scope of work in process development, tech transfer and scale up
• Direct experience with at‑scale manufacturing processes and equipment either through previous tech transfers or direct manufacturing operations experience.
• Demonstrated ability to independently write technical reports based on sound data analysis and experimental design
• Demonstrated understanding of overall drug development workflow and how CMC can enable acceleration of drug development in a cross functional environment
• Knowledge of cGMPs, especially as related to a virtual environment where manufacturing is currently outsourced to third party vendors
• Excellent professional and interpersonal skills, especially for developing and maintaining relationships with CDMO’s
• Excellent oral and written communication skills
• Ability to work efficiently and cooperatively in‑person or virtually (both at Marea or a CDMO site)
• Goal oriented and ability to deliver on timelines and commitments
• Leverages the technical insights about the process and product to proactively identify critical CMC risks early and propose/implement right‑sized mitigation
• Demonstrated understanding of the product attributes and analytical methods to guide process development, improvement.

Additional preferred qualification:

While this role is focused on downstream bioprocess expertise, previous experience/familiarity with other aspects of bioprocess development (cell banking, cell culture, formulation and analytical) is desired.

PAY RANGE

The salary range for this role will be competitive and commensurate with the candidate's experience, qualifications, and responsibilities of the position.

We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, marital status, or based on an individual’s status in any group or class protected by applicable federal, state, and local law. We invite applications from minorities, women, the disabled, protected veterans, and all other qualified applicants.