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Process Design Jobs in California (NOW HIRING)

CRB

Process Engineer I

San Diego, CA · On-site

Company Description At CRB, we design and build some of the most powerful facilities in the world ... The Entry-Level Process Engineer is responsible for supporting the documentation of the process ...

CRB

Process Engineer I

San Diego, CA · On-site

Company Description At CRB, we design and build some of the most powerful facilities in the world ... The Entry-Level Process Engineer focuses on the design and engineering of manufacturing facility ...

CRB

Process Engineer I

San Diego, CA · On-site

Company Description At CRB, we design and build some of the most powerful facilities in the world ... The Entry-Level Process Engineer focuses on the design and engineering of manufacturing facility ...

Eichleay, Inc

Process Engineers

Larkspur, CA

We are seeking to talk to experienced professionals who have a passion for process design, PFD/P&ID development, and multi-discipline project execution. Positions will require the ability to support ...

Eichleay, Inc

Process Engineers

Orange, CA

We are seeking to talk to experienced professionals who have a passion for process design, PFD/P&ID development, and multi-discipline project execution. Positions will require the ability to support ...

Stone Peak

Process Engineer

San Diego, CA · On-site

PROCESS ENGINEER Position Summary and Objective Design and implementation of process equipment strategies, coordinating process activities with other discipline engineers within the company.Need to ...

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Process Design information

See California salary details

$59.7K

$95.8K

$125.3K

How much do process design jobs pay per year?

As of Aug 16, 2026, the average yearly pay for process design in California is $95,789.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,400.00 and $108,600.00 per year, depending on experience, location, and employer.

What is process design?

Process design is the planning and structuring of the steps, workflows, and resources needed to transform inputs into finished products or services in the most efficient way possible. It involves analyzing existing processes, identifying areas for improvement, and creating detailed plans for new or optimized processes. Process designers work to ensure that operations are cost-effective, safe, and meet quality standards. This role is crucial in industries like manufacturing, engineering, and service delivery, where efficient processes can significantly impact productivity and profitability.

What are the key skills and qualifications needed to thrive as a process design engineer, and why are they important?

To thrive as a Process Design Engineer, you need a solid background in chemical or mechanical engineering, strong analytical skills, and experience in process optimization. Familiarity with process simulation software (such as Aspen HYSYS or AutoCAD) and industry certifications like Six Sigma are commonly required. Excellent problem-solving abilities, teamwork, and effective communication are standout soft skills in this role. These skills ensure efficient, safe, and cost-effective process designs that meet organizational and regulatory standards.

What is the difference between Process Design vs Process Improvement?

AspectProcess DesignProcess Improvement
FocusCreating or developing new processes from scratch or redesigning existing onesOptimizing and enhancing existing processes for better efficiency
SkillsProcess mapping, workflow analysis, creativity, project managementData analysis, problem-solving, Lean/Six Sigma methodologies
Work EnvironmentProject-based, often in the planning or development phaseOperational, ongoing efforts within existing workflows
CertificationsProcess mapping, project management certificationsLean, Six Sigma, Kaizen certifications

While Process Design focuses on creating and structuring new processes, Process Improvement aims to refine and enhance current workflows. Both roles are essential for operational excellence but differ in scope and approach.

What are the most common challenges faced by professionals in process design roles, and how can they be addressed?

One of the most common challenges in Process Design roles is balancing efficiency improvements with operational feasibility and compliance requirements. Professionals often need to collaborate closely with cross-functional teams, such as operations, quality assurance, and engineering, to ensure that proposed process changes are practical and align with industry standards. Additionally, adapting to rapidly evolving technologies and integrating new tools can present hurdles. Staying proactive through continuous learning, clear communication, and iterative feedback greatly helps in overcoming these challenges and achieving successful process improvements.

What are the most commonly searched types of Process Design jobs in California?

The most popular types of Process Design jobs in California are:

What are popular job titles related to Process Design jobs in California?

For Process Design jobs in California, the most frequently searched job titles are:

What job categories do people searching Process Design jobs in California look for?

The top searched job categories for Process Design jobs in California are:

Process Design jobs near you
Infographic showing various Process Design job openings in California as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 15% Part Time, 2% Temporary, 3% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $95,789 per year, or $46.1 per hour.

Senior Process Engineer

Nikkiso Cryogenic Industries

Huntington Beach, CA • On-site

$108K - $140K/yr

Full-time

Re-posted 10 days ago

Job description

Company Overview
Nikkiso Clean Energy & Industrial Gases is a leading provider of cryogenic pumps, heat exchangers, process systems, services, and solutions for the LNG and industrial gases industry. We are a subsidiary of Nikkiso Company Ltd, a leading industrial manufacturer headquartered in Tokyo, Japan, with over $1.5 B in annual revenue, 8000 + employees worldwide, and publicly traded on the Tokyo Stock Exchange.
Job Overview
The Senior Process Engineer leads process system design and technical definition for skid-mounted and modular process packages in an EPC execution environment. This role is responsible for developing and validating the process design basis, ensuring system operability, and integrating process requirements across mechanical, I&C, and package design.
A core responsibility of this role is ownership of process simulation models, ensuring that simulation results are accurate, validated, and fully aligned with design deliverables, vendor data, and operating philosophy.
The position requires strong experience in oil & gas, LNG, cryogenic, or industrial gas systems, with the ability to translate simulation outputs into practical, fabrication-ready engineering solutions.
Responsibilities
Process Design & System Definition
  • Develop and lead:
    • Process Design Basis
    • PFDs (Process Flow Diagrams)
    • P&IDs (Piping & Instrumentation Diagrams)
    • Heat & Material Balances
    • Utility balances
    • Line sizing calculations
    • Relief and flare calculations
  • Define operating philosophy including startup, shutdown, turndown, and upset conditions
  • Ensure accurate representation of process control strategies within P&IDs

Process Simulation (Core Responsibility)
  • Develop, own, and maintain steady-state and dynamic process simulation models using:
    • Aspen HYSYS
  • Validate simulation models against:
    • Design basis
    • Vendor data
    • Operating conditions
  • Perform sensitivity studies and optimization analyses
  • Generate simulation-based deliverables including:
    • Stream tables
    • Equipment duty calculations
    • Control strategy inputs
  • Support dynamic simulation where required for control philosophy validation
  • Ensure alignment between simulation outputs and engineering deliverables (PFDs, datasheets, P&IDs)

Engineering Deliverables
  • Develop and review:
    • Process datasheets (equipment, valves, instruments)
    • Control narratives (in coordination with I&C)
    • Cause & effect inputs
    • Process calculations and reports
  • Ensure consistency between simulation models and issued documentation

Integration & Coordination
  • Work closely with Mechanical, I&C, and Design teams to ensure:
    • Equipment sizing aligns with simulation outputs
    • Control philosophy reflects process dynamics
    • Layout supports operability and maintainability
  • Participate in HAZOP, design reviews, and interdisciplinary coordination

Vendor & Package Integration
  • Define process requirements for vendor packages
  • Review vendor process design, calculations, and performance guarantees
  • Validate vendor data against simulation assumptions
  • Ensure seamless integration of vendor systems into overall process package

Fabrication & Execution Support
  • Ensure process design is aligned with skid fabrication constraints
  • Support FAT, commissioning, startup, and troubleshooting
  • Resolve process-related issues during fabrication and operation

Standards & Compliance
  • Ensure compliance with industry standards and client specifications
  • Support safety, operability, and reliability reviews

Qualifications
  • Bachelor's degree in Chemical Engineering
  • 10-15+ years of experience in oil & gas, LNG, cryogenic, or EPC industries
  • Advanced proficiency in process simulation tools (Aspen HYSYS, Aspen Plus, UniSim)
  • Strong experience linking simulation outputs to engineering deliverables
  • Experience with skid-mounted systems and modular design
  • Strong understanding of ENGINEERING workflows

Preferred Qualifications
  • Experience with dynamic simulation and control validation
  • Experience with cryogenic or industrial gas processes
  • Background in packaged equipment or modular systems

Desired Attributes
  • Strong system-level thinking
  • Ability to translate simulation into practical design decisions
  • Strong coordination and communication skills
  • Execution-focused mindset

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.
  • 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 customer's office, production facility or industrial/construction job site. Conditions will vary at each location, but the conditions listed above will generally apply.

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.
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.
Salary: $85,000 - $120,000 annually
EEOC Statement
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.

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