Senior Director, Process Development

Keros Therapeutics, Inc.; United States; On-site; USD 240,000 - 277,000; Full time

Job summary

Keros Therapeutics, Inc. is seeking a Senior Director of Biologics Process Development to lead the PD group focused on complex biologics using CHO cell culture.

You will guide development, optimization, and tech transfer across multiple programs, coordinating with Research, Analytical Development, and Manufacturing to ensure timely material for studies. The role requires a deep technical background in bioreactor operations, scale-up, and process characterization, with a track record of

Qualifications

• Ph.D. in Chemical Engineering, Bioengineering, Biochemistry or related field with 10+ years industry experience.
• MS/BS with 14+ years relevant biopharmaceutical experience.
• Minimum 5+ years managing and developing technical teams of scientists and engineers.
• Experience leading biologics process development and technology transfer.

Responsibilities

• Head Process Development; oversee planning, resources, and project delivery in a fast-paced environment.
• Mentor and develop Upstream and Downstream Process Development staff.
• Provide deep expertise in CHO cell culture development, media optimization and cell line evaluation for complex biologics.
• Oversee upstream bioreactor operations from bench to pilot scale; design, scale-up, and process characterization.
• Drive process technologies to increase efficiency and purity.
• Support cohesive end-to-end process development with downstream purification know-how.
• Execute process development studies, data reviews, and documentation per SOPs.
• Facilitate early program transitions from Research to Development, ensuring scalable processes.

Education

Ph.D. in Chemical Engineering

M.S./B.S. with 14+ years biopharmaceutical experience

Job description

At Keros, our mission is to deliver significant clinical benefit to a wide range of patients with disorders that are linked to dysfunctional signaling of the transforming growth factor-beta (TGF-ß) family of proteins. With a focus on developing differentiated product candidates that are designed to alter TGF-β signaling, we aim to target the pathways critical for the growth, repair and maintenance of blood cells and a number of tissues, including bone, skeletal muscle, adipose and heart tissue. We believe our product candidates have the potential to unlock the full therapeutic benefits of modulating the TGF-β superfamily and provide disease-modifying benefit to patients.

Job Summary

The Senior Director of Biologics Process Development will provide strategic and operational leadership for the Process Development group, with a specialized focus on complex biologics utilizing CHO cell culture platforms. This leadership role requires a deep technical background in running bioreactors within a process development setting alongside the ability to lead a high-performing group of Process Scientists and Engineers.

The successful candidate will oversee the development, optimization, and technology transfer of robust manufacturing processes across multiple biologics programs from early to late-stage development. This role coordinates closely with internal research, analytical, and manufacturing teams to ensure the seamless transition of programs from Research to Development, the successful execution of internal PD studies, and the timely production of material for toxicology and clinical studies.

Primary Responsibilities

• Serves as Process Development department head overseeing planning, execution, resource allocation, and project delivery in a fast-paced environment
• Manage, mentor and facilitate the development of the staff in Upstream and Downstream Process Development
• Provide deep subject matter expertise in CHO cell culture development, including media optimization, feeding strategies, and cell line evaluation for complex biologics (e.g., bispecifics, fusion proteins, heavily glycosylated proteins)
• Oversee upstream bioreactor operations (from bench-top to pilot scale), leveraging strong hands‑on experience in bioreactor design, scale‑up dynamics, and process characterization within a PD setting
• Drive innovation and development of process technologies that can result in significant increases in efficiency and purity
• Maintain a strong working knowledge of downstream purification technologies to ensure cohesive, end-to-end integrated process development
• Oversee the execution of process development studies, data review, and comprehensive documentation according to established laboratory procedures and data integrity standards
• Facilitate early program transitions from Research to Development, ensuring processes are scalable and fit for development realities
• Operate within a cross-functional project team environment and coordinate efforts with all relevant internal functional areas including Quality, Manufacturing, Analytical Development, Program Management, Research, non-Clinical (Tox)
• Have direct experience with establishing production processes for biologics in cGMP manufacturing settings
• Assure cGMP success through effective tech transfer and support of cGMP manufacturing. Coordinate efforts with manufacturing to achieve program success
• Lead tech transfer to CDMOs and mentor team members to support tech transfers
• Determine areas for gaining efficiency, coordinates with individual groups and ensure harmonized implementation of best practices
• Experience throughout the biopharmaceutical product life-cycle including process characterization studies, in-process control strategy and process validation is preferred but not required

Preferred Skills

• Management experience must include managing a team of at least 5
• Experience reviewing and/or authoring CMC sections for regulatory submissions
• Demonstrated ability to work cross functionally to achieve goals
• Knowledge of upstream and downstream process development for biologics
• Ability to multi‑task and handle successful execution of multiple parallel programs
• Knowledge of cGMP and manufacturing operations
• Knowledge of tech transfer
• Knowledge of good lab practices including hands‑on implementation
• Knowledge of regulatory guidelines, particularly those for IND filing

Education Requirements

• Ph.D. in Chemical Engineering, Bioengineering, Biochemistry, or a related scientific discipline with 10+ years of industry experience; or an M.S./B.S. with 14+ years of relevant biopharmaceutical experience
• Minimum of 5+ years of experience successfully managing and developing technical teams of scientists and engineers in a biopharmaceutical setting

This pay range represents the base hourly rate or base annual full-time salary for all positions in the job grade within which this position falls. The actual base salary offer will depend on a variety of factors including experience, education, and other relevant factors.

Potential base pay range

$240,000—$277,000 USD

Our Diversity, Equity & Inclusion Mission Statement: Keros is an inclusive company. We believe that diversity drives innovation. We continue to build an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. As such, Keros takes a holistic approach in mentoring, coaching, and developing all of our Keros team members.

Keros Therapeutics is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.