Mechanical Design Engineer III

Nikkiso Cryogenic Industries • Escondido, CA

10h • Onsite

About The Position

Nikkiso Clean Energy & Industrial Gases is seeking a Mechanical Engineer III for their Nikkiso Applied Technology business unit in Escondido, CA. This role involves performing mechanical calculations such as valve sizing, PSV sizing, pump/compressor sizing, pipe stress, and flow modeling. The engineer will also be responsible for mechanical design tasks including P&IDs, piping isometrics, pump skid design, and trailer loading skid designs. Project management responsibilities include customer interface, schedule updates, and documentation submission. Typical projects involve cryogenic transfer systems and high-pressure (20,000 psig) gas transfer systems. This is an in-person, on-site role requiring direct collaboration with engineering, manufacturing, and field teams. Remote or hybrid work is not available.

Requirements

• 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

Nice To Haves

• 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

Responsibilities

• Provide mechanical engineering design of cryogenic and high-pressure system.
• Meet key performance indicators, including completing all contractual obligations on schedule and within budget.
• Work in a team environment.
• Apply 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level