Senior R&D Engineer

South San Francisco, CA
Full Time
Mid Level

Zenflow, Inc. is a privately held medical device company dedicated to improving treatment for patients suffering from urinary obstruction caused by enlarged prostate. The innovative Spring® technology was designed with the patient experience in mind and relies on a small spring-like coil that gently props open the urethra, restoring its normal function while preserving the natural anatomy. 

PURPOSE OF JOB: Create, prototype, and test medical devices, including components, assemblies, and products, using information supplied by engineering staff.


  • Have overall responsibility for design, sourcing, and documentation of subcomponents as specified by supervisor or project lead.
  • Advise junior engineering team on documentation, prototypes, and product development
  • Provide support in the resolution of product complaints and/or safety issues. 
  • Ensure that processes/methods utilized are consistent with cost effective and reliable manufacturing practice. 
  • Work with engineers, machinists, and physicians to create working prototypes, specifications, and drawings for new products or product revisions which are low-cost and easy to manufacture.
  • Update supervisor/team of work status or problems with recommendations for improvement or correction. 
  • Complete projects in a timely manner consistent with corporate objectives. 
  • Maintain an accurate lab notebook and record of assignments and results including documentation concerning materials, parts used, concepts, designs, drawings, and processes. 
  • Maintain current knowledge of medical, technical, and biomedical developments related to company’s products. 
  • Provide feedback on product revisions or new products to project engineers and other company personnel as appropriate. 
  • Maintain QSR systems, including pre-production quality assurance procedures, pre-clinical testing programs, and post production QSR compliance in coordination with the Document Control, Clinical, and Quality Assurance functions. 
  • Train assemblers when transferring processes or products. 
  • Maintain a clean, safe, and well-organized work area.
  • Develop and conduct laboratory testing protocols and document results. 
  • Complete specialized studies or experiments culminating in written reports as needed. 
  • Support company goals and objectives, policies and procedures, QSR, and FDA regulations.
  • Use Solidworks to model and create designs. 
  • Work from verbal, written, or pictorial information to create designs for engineering staff.  
  • Document specifications and revisions, and maintain log of all work. 
  • Verify all work, and document materials and quantities needed for products/components.
  • Manage vendors and their schedules to obtain parts in a cost-effective and expedited manner.

EDUCATION REQUIREMENTS: BS in life sciences, engineering, or equivalent preferred.


  • 5+ years engineering experience, preferably in medical device development
  • Experience with mechanical drawing, knowledge of Solidworks CAD software required.

Apply for this position

Apply with Indeed
We've received your resume. Click here to update it.
Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or Paste resume

Paste your resume here or Attach resume file

Human Check*