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Mechanical Engineer II

Inogen, Inc., 301 Coromar Drive, Goleta, California, United States of America Req #435
Friday, June 11, 2021

ABOUT INOGEN Inogen was founded in 2001 to improve quality of life and increase freedom and independence for oxygen therapy users. Inogen is innovation in oxygen therapy. The Inogen mission is to improve freedom and independence for oxygen therapy patients through innovative products and services. Inogen is a manufacturer and Accredited Homecare Provider.

Inogen is focused on quality care, continuous improvement, and outstanding customer satisfaction. We are a stable, USA based company dedicated to providing an exciting and rewarding career to our employees. We completed a successful Initial Public Offering on the NASDAQ in 2014 and have demonstrated substantial growth over the last five years. Our work environment is casual yet high performing, and we are looking for seriously talented, motivated, and fast-paced professionals to join our team.

Job Summary:

The primary responsibility of the Mechanical Engineer is to design, release, and support the manufacturing of Inogen’s respiratory medical devices. The Mechanical Engineer is a key member of the Engineering team and participates in all product development phases. Key responsibilities include the design of internal components by injection molding, stamping, die-casting, machining, and various prototype manufacturing methods. The Mechanical Engineer may also be assigned to focus their activities on existing product lines to make improvements to user experience, quality, reliability, cost and efficiency in manufacturing.


Responsibilities (Specific tasks, duties, essential functions of the job)

  • Member of the Engineering team in all product development activities
  • Support new and existing product design CAD
  • Update mechanical CAD from DFM feedback
  • Support operator training
  • Responsible for executing mechanical testing of concentrator components
  • Root cause analysis of mechanical failures
  • Support of existing product lines with continuous improvement of mechanical components for reliability, cost reduction, and product performance
  • Create technical part and assembly drawings
  • Working with other engineers, the Mechanical Engineer will design and model all mechanical components using Solidworks
  • Responsible for FMEA of system subcomponents within the oxygen concentrator design
  • Provide analysis on system design and integration
  • Analyze parts for manufacturability, tolerances, and good design practices
  • Responsible for designs, 3D models, as well as part and assembly drawings throughout the product development cycle
  • Administrate Inogen’s EPDM system and all parts during the development phases until release to production
  • Support Inogen product development efforts, including design of compressor systems, valve manifolds, internal structural components, external enclosure parts, cooling systems, and vibration isolation mounts
  • Responsible for testing and validation of designed components and systems
  • Vendor contact to develop supply relationships that offer cost effective and high quality manufacturing of Inogen designs
  • Interaction with manufacturing engineers to maintain drawings and 3D database in accordance with Inogen part documentation procedure, including updates based on feedback from Engineering and Manufacturing design reviews and continuous improvement data
  • Provide consistent attention to reducing defects in manufacturing and field returns through continuous improvement and lean practices
  • Provide support to manufacturing as necessary to maintain production capacity, including problem identification, analysis, and solutions
  • Maintain regular and punctual attendance
  • Comply with all company policies and procedures
  • Assist with any other duties as assigned

Knowledge, Skills, and Abilities

  • Must have strong work ethic
  • Excellent oral and written communication skills required
  • Attention to detail with accurate and complete documentation
  • Effective conflict resolution
  • Analytical & problem-solving skills & ability to multitask
  • Solutions-oriented problem solver
  • Versed in and able to effectively apply common root cause analysis tools
  • Excellent planning, communication, and organizational skills
  • Ability to effectively interface with different departments within the company
  • Knowledge of plastics, metal, and rubber material properties and design
  • Model based design and analysis
  • Experience with mechanical design of complex electro-pneumatic assemblies
  • Tolerance analysis of complex mechanical assemblies
  • Experience with injection molding
  • Experience with tight tolerance machining and die casting
  • Self-motivated and capable of self-direction
  • Experience with fabrication equipment
  • Highly motivated and able to act as a key part of the Engineering team
  • Desire and ability to perform hands-on prototyping, testing, and troubleshooting

Qualifications (Experience and Education)

  • Bachelors’ in Engineering or related technical discipline, required
  • 3-5 years’ experience in mechanical engineering, required
  • Advanced knowledge/proficiency in Microsoft Office, Solidworks, and EPDM, required
  • Advanced knowledge/proficiency in ISO 9001 or ISO 13485, required
  • Intermediate knowledge of manufacturing techniques, including plastic injection molding, die-casting, and machining, required
  • A combination of training, education, and experience that is equivalent to the qualifications listed above and that provides the required knowledge, skills, and abilities


We thank all applicants in advance for their interest in the position. However, only those selected for an interview will be contacted.

Inogen is an equal opportunity employer.  We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally
protected characteristics. The EEO is the Law poster and its supplement are available here:;

The pay transparency policy is available here:

Inogen is committed to working with and providing reasonable accommodations to individuals with disabilities.  If you need a reasonable accommodation because of a disability for any part of the employment process, please send an e-mail to or call (972) 616-5668 and let us know the nature of your request and your contact information.

Other details

  • Job Family Mechanical Engineer
  • Job Function Individual Contributor
  • Pay Type Salary
  • Employment Indicator Insider
  • Required Education Bachelor’s Degree
Location on Google Maps
  • Inogen, Inc., 301 Coromar Drive, Goleta, California, United States of America