Principal Mechanical Engineer

Reposted 6 Days Ago
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South San Francisco, CA
In-Office
150K-240K Annually
Senior level
Biotech
The Role
Lead the technical transfer of a mechanical system to a contract manufacturer, while managing design and ensuring manufacturability. Requires 15+ years experience in mechanical engineering.
Summary Generated by Built In
We are seeking a highly experienced Principal Mechanical Engineer with a strong background in technical program management to lead the transfer of a complex, large-scale mechanical system to a contract manufacturer (CM). This critical role will drive all technical aspects of the transfer, ensure the seamless release of engineering documentation, and act as the primary liaison between internal engineering, operations, and external manufacturing partners.
 
In addition to program management duties, this role includes hands-on mechanical design responsibilities, ensuring design integrity and manufacturability throughout the transfer process. The ideal candidate will have 15+ years of experience in mechanical engineering with a proven track record of managing cross-functional technical programs, BOM releases, and CM transfers in a fast-paced product development and manufacturing environment.

Responsibilities

  • Own the overall technical execution of the transfer, coordinating across engineering, manufacturing, supply chain, and quality teams
  • Own and contribute to the mechanical design of system components and assemblies, ensuring performance, reliability, and manufacturability
  • Review and update CAD models and drawings as needed to support the transfer and production ramp
  • Collaborate with cross-functional teams to resolve design issues and implement improvements based on feedback from testing and manufacturing
  • Prepare, review, and release Bills of Materials (BOMs) and engineering drawings in accordance with company standards
  • Drive the creation and processing of Engineering Change Orders (ECOs) to support product updates and CM readiness
  • Define and implement test methods and inspection criteria at the CM to ensure product quality and reliability
  • Establish and track build schedules, milestones, and shipment timelines at the CM
  • Provide on-site or remote technical support to CM during prototype, pre-production, and production builds
  • Serve as the primary technical liaison between internal teams and external partners (including the CM)
  • Interface with internal disciplines (electrical, systems, quality, supply chain, etc.) to ensure product requirements and design intent are preserved

Requirements

  • Bachelor’s degree in Mechanical Engineering or a combination of technical education and experience 
  • 15+ years of hands-on experience in Mechanical engineering with significant exposure to product development, manufacturing, and CM transfer
  • Proven experience managing the technical aspects of system-level builds and CM onboarding  
  • Strong experience in CAD, PLM systems, BOM management, and ECO processes  
  • Hands-on experience developing and implementing test methods
  • Ability to operate autonomously in a dynamic, cross-functional environment
  • Previous experience working with domestic and international CM’s is highly desirable

This is Cellares

Cellares is the first Integrated Development and Manufacturing Organization (IDMO) and takes an Industry 4.0 approach to mass manufacturing the living drugs of the 21st century. The company is both developing and operating integrated technologies for cell therapy manufacturing to accelerate access to life-saving cell therapies. The company’s Cell Shuttle integrates all the technologies required for the entire manufacturing process in a flexible and high-throughput platform that delivers true walk-away, end-to-end automation. Cell Shuttles will be deployed in Cellares’ Smart Factories around the world to meet total patient demand for cell therapies at global scale. Partnering with Cellares enables academics, biotechs, and pharma companies to accelerate drug development and scale out manufacturing, lower process failure rates, lower manufacturing costs, and meet global patient demand.
The company is headquartered in South San Francisco, California with its commercial-scale IDMO Smart Factory in Bridgewater, New Jersey. The company is backed by world-class investors and has raised over $355 million in financing.

Leveling will be based on overall experience, education, and demonstration of knowledge throughout the interview process.

Top Skills

Bom Management
Cad
Eco Processes
Plm Systems
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The Company
HQ: South San Francisco, CA
109 Employees
Year Founded: 2019

What We Do

Cellares is revolutionizing cell therapy manufacturing. We are developing a one-of-a-kind solution, The Cell Shuttle, to overcome the challenges associated with manufacturing so these life-saving therapies are affordable and widely available to patients who can benefit.

The clinical impact of cell therapy in treating cancer has been proven, but this therapeutic approach has several limitations, especially in manufacturing, leaving extremely sick patients waiting for treatment and desperate for hope.
Since cell therapy is currently produced for a single patient at a time, it is expensive to manufacture, requiring significant time and resources, and is difficult to scale.

Preclinical and clinical scientists, as well as commercial cell therapy manufacturers also lack the options to fully automate their manufacturing process quickly, safely, cost-effectively and at the scale they need.

The Cell Shuttle is an automated and closed end-to-end manufacturing solution that is flexible and scalable, enabling customers to run exact processes specified for their cell therapy. Compared with the current manual manufacturing processes for cell therapy, the Cell Shuttle’s next-generation automated manufacturing solution has 10 times the scalability (meaning 10 times more patient doses can be produced simultaneously), enables a three-fold reduction in process failure rates and will reduce the per-patient manufacturing cost by up to 70 percent for most processes.

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