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Job description
Company Overview
Nikkiso Clean Energy & Industrial Gases is a leading provider of high pressure and cryogenic systems, cryogenic pumps, heat exchangers, process systems, turboexpanders, and services for liquefied natural gas (LNG), liquefied hydrogen (LH2), compressed natural gas (CNG), compressed hydrogen (GH2) and industrial gases (LN2, LAr, LO2) industries. Applications include fueling stations, trailer loading systems, marine fuel system, LNG peak shaving, power generation, and virtual pipelines.
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
We are currently looking for a Mechanical Engineer III for our Nikkiso Applied Technology business unit in Escondido, CA. The ideal candidate will assist with mechanical calculations such as valve sizing, PSV sizing, pump/compressor sizing, pipe stress, flow modeling and mechanical design such as P&IDs, piping isometrics, pump skid design and trailer loading skid designs. The position will require some project management as well that includes interfacing with the customer, providing schedule updates, and submitting all required project documentation. Typical projects involve cryogenic transfer systems and high pressure (20,000 psig) gas transfer systems. This is an in‑person, on‑site role that emphasizes direct collaboration with engineering, manufacturing, and field teams. Remote or hybrid work is not available.
Salary Range:
$83,821 To $153,600 Per Year
Responsibilities
Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
Provide mechanical engineering design of cryogenic and high-pressure system.
Ability to meet key performance indicators, including completing all contractual obligations on schedule and within budget.
Ability to work in team environment
Application of Engineering Design Codes, including but not limited to piping system design code and pressure vessel design codes.
Responsible for component selection.
Perform thermodynamic and pipe flow calculations.
Support field start‑up and commissioning activities, including on‑site troubleshooting, system validation, and collaboration with operations and service teams.
Qualifications
Bachelor's Degree in Mechanical Engineering with 2 years experience or Master’s degree in Mechanical Engineering
Fluid transfer system knowledge (pump selection, pipe flow calculations, relief valve sizing)
Ability to read and develop P&ID
Familiarity with P&IDs
Familiarity with pump selection and pump operations
Working knowledge of system safety and risk assessment techniques (HAZOP, HAZID, What-If) and their integration into mechanical design and design reviews
Proficiency with AutoCAD, Inventor, or SolidWorks or similar software
Required Travel: Up to 25%
Preferred Experience
Masters’s degree in Mechanical Engineering
Cryogenic system design, fabrication, and start‑up experience
High pressure system design, fabrication, and start‑up experience
5+ years of related experience in cryogenic or high‑pressure systems
Startup and Commissioning Experience
System Control Narrative Development
Centrifugal and positive displacement pump system selection and integration
EEOC Statement
Nikkiso 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.
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Worksite address
escondido, CA, 92025, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.