Mechanical Design Engineer II - Core Unit
Nikkiso Clean Energy & Industrial Gases
Irvine, CA · Posted November 13, 2026
Just laid off? Start here: a plan for the first weeks
See every open role at Nikkiso Clean Energy & Industrial Gases
More in California job market · Energy & Utilities · Engineering jobs
More roles at Nikkiso Clean Energy & Industrial Gases
- EHS Manager · Murrieta, CA
- Project Engineer I
- Manufacturing Process Engineer II · Santa Ana, CA
- Accountant II
- Manager, Test Engineering · Huntington Beach, CA
- Project Engineer II · Irvine, CA
Similar jobs
- Integration Engineer · Exthymic · San Diego, CA
- Firmware Engineer · Vector Atomic · Pleasanton, CA
- Aerospace Software Engineer (Starfall) · SpaceX · Hawthorne, CA
- Integrator/Developer II · Constellation Energy · San Diego, CA
- Hardware Validation Engineer · Alten · Palo Alto, CA
- Civil Engineer (PSP) · Bechtel · Los Angeles, CA
Where Irvine, CA ranks
Where Irvine, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #6Cities with the most jobs that do not need a four-year degree in the West Coast124 jobs · of 47
- #10Best cities for legal pay after cost of living$129k · of 20
- #10Best cities for life sciences and biotech pay after cost of living$120k · of 10
- #10Best cities for software and engineering jobs in the West Coast586 openings · of 60
- #11Best all-round cities for new graduates in the West Coast55 / 100 · of 39
- #13Best cities for manufacturing and industrial pay after cost of living$136k · of 35
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Skills this job asks for
Say which you have and which you want to build. We use it to match you to jobs like this one.
About the job
Company Overview
Nikkiso Clean Energy & Industrial Gases is a leading provider of cryogenic pumps, heat exchangers, process systems, turboexpanders, services, and solutions for the liquefied natural gas (LNG), liquefied hydrogen (LH2), and industrial gases industries. Applications include fueling stations, marine engines, peak shaving, power generation, virtual pipelines, carbon capture, geothermal power and well stimulation. We are a subsidiary of Nikkiso Company Ltd, a leading industrial manufacturer headquartered in Tokyo, Japan, with $1.5 B USD in annual revenue, 8000 + employees worldwide, and publicly traded on the Tokyo Stock Exchange.
Job Overview
Turboexpander and Compressor product core unit design and mechanical calculations. Understand and design all aspects and features of turboexpander products. Become a mechanical design specialist in machinery, standardization and low-cost manufacturing methods. Actively engage in continually improving turbo expander products designs and core components to simplify, standardize, reduce cost and increase performance. Document designs and decisions in a simple and understandable manner.
Responsibilities
Designs, models, and tests prototypes for products
Conducts research and creates design proposals for projects
Creates concepts, performance, and production criteria
Improve the process of machine design.
Deliver the design based on the reequipments of the development project master specification.
Have a strong understanding of product development and machine design process.
Be proficient in the turbo machine and part design process.
Understand machine shop practice and to be able to communicate with engineering and machine shop personnel.
Have a strong knowledge of design and drafting practice to provide design layouts, 3-D models and 2-D drawings.
Interact confidently and authoritatively with Engineering, marketing and application group and providing accurate technical information.
Prepare specifications for the buyout components, such as housings, gear box, mechanical seals and other core unit components.
Maintain up to date documentation on all responsible projects.
To be able to work alone or in a group.
Assist shop in issues related of turbo expanders.
Qualifications
Bachelor of Scientce degree in Mechanical Engineering
Experience analyzing engineering sketches, specifications, related data and drawings to determine design factors such as size, shape and arrangement of parts
Ability to make equipment layouts and perform fundamental engineering calculations
At least five years of design engineering experience. Prefer experience with turbo machinery
Experience planning and formulating design engineering program and works with project team staff according to project requirements
Ability to review product design for compliance with engineering principles, company standards and customer contract requirements, and related specifications
Advanced knowledge of MS Office Suite
Work Environmental and Physical Demands:
In order to perform the duties of this job, the employee may be required to stand, walk, sit, reach with hands and arms, climb or balance, stoop or kneel, talk and hear, and use fingers and hands to feel objects, tools or controls.
Ability to lift up to 25 lbs. may be necessary.
Overtime may be necessary as the workload dictates. This may include week days, weekends, nights and/or holidays.
Job will generally be performed in an office environment, but may require travel to a Client's office, production facility or industrial/construction job site. Conditions will vary at each location, but the conditions listed above will generally apply.
Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.
Environmental Safety Requirements
New Employee Safety Training is required by all newly hired employees, including Safety Awareness
All safety related training is provided and tracked by the EHS Manager
Job specific training modules deemed necessary by employee’s Manager or Director will be required of all employees on an ongoing basis
Employees are required to wear Nikkiso provided PPE as/when needed. PPE’s include, safety shoes, safety glasses, face shields, FR clothing, cryogenic gloves, cryogenic apron, cut resistant gloves, safety gloves, hearing protection, hard hats & dust masks. Failure to comply with Nikkiso ACD safety requirements will result in disciplinary actions, up to and including termination.
In compliance with the Americans with Disabilities Act of 1990, the employer will provide reasonable accommodations to meet the work environmental and physical demands listed above.
Experience and Education:
Bachelor’s degree in a relevant engineering field is required
Proficient in SolidWorks and FEA
Five years of experience in a similar role is required
Equivalent combination of education, training and experience in an engineering design role may be accepted
The knowledge, skills and abilities listed above are typically acquired through the levels of education and experience listed. An equivalent combination of education and/or experience that provides an applicant with the listed knowledge, skills and abilities required to perform the essential duties and responsibilities of the job, may be accepted.
Salary: $70,843 - $98,103
EEOC Statement
Equal Opportunity Employer/Veterans/Disabled
Nikkiso CE&IG is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.