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Process Simulation Jobs in California (NOW HIRING)

Senior Process Engineer

Irvine, CA · On-site

$150 - $230/hr

* Lead process system design and technical definition for skid-mounted and modular process packages ... Validate simulation models against design basis, vendor data, and operating conditions * Perform ...

Senior Process Engineer

Irvine, CA · On-site

$85 - $120/hr

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 ...

Senior Process Engineer

Irvine, CA · On-site

$85 - $120/hr

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 ...

Familiar with process simulation software (Aspen HYSYS). * Strong understanding of process engineering principles. * Previous refinery experience highly preferred. Key Responsibilities * Monitor ...

Process Engineer Level II

Monrovia, CA · On-site

$110K - $162K/yr

Advanced knowledge of process simulation packages such as HYSYS and/or PRO/II, iPRSM, PSPPM, Flare Network Analyzer and Computational Fluid Dynamics. * 5+ years of relevant process engineering ...

TFT process team is responsible for delivering advanced TFT panel technologies and architectures to ... This includes AI-assisted various simulations and characterizations related to structural, device ...

TFT process team is responsible for delivering advanced TFT panel technologies and architectures to ... This includes AI-assisted various simulations and characterizations related to structural, device ...

The Camera Modeling & Simulation team, a part of the Camera Hardware and Depth Team, develops novel metrology, calibration, and simulation processes to enable the implementation and architecture of ...

The Camera Modeling & Simulation team, a part of the Camera Hardware and Depth Team, develops novel metrology, calibration, and simulation processes to enable the implementation and architecture of ...

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Showing results 1-20

Process Simulation information

See California salary details

$38.5K

$121.8K

$188K

How much do process simulation jobs pay per year?

As of Aug 31, 2026, the average yearly pay for process simulation in California is $121,783.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,800.00 and $144,600.00 per year, depending on experience, location, and employer.

What is a process simulation?

A Process Simulation job involves using software tools to model, analyze, and optimize industrial processes in industries like chemical, manufacturing, and energy. Engineers in this role create virtual models to test different scenarios, improve efficiency, reduce costs, and ensure safety. They work with simulation software such as Aspen Plus, HYSYS, or MATLAB to predict system performance before physical implementation. This helps companies make data-driven decisions and improve overall process reliability.

What does a typical day look like for someone working in process simulation?

A typical day in Process Simulation often involves developing, testing, and refining process models to optimize manufacturing or chemical processes. You’ll collaborate with engineers, plant operators, and project managers to gather data, validate simulations, and ensure alignment with production goals. Regular responsibilities may include running simulations on specialized software, analyzing results, and presenting findings and recommendations to stakeholders. The role tends to balance independent analytical tasks with team-oriented problem-solving, providing both technical challenges and opportunities for cross-functional communication.

What are the key skills and qualifications needed to thrive in the process simulation position, and why are they important?

To thrive in Process Simulation, a strong background in chemical engineering, process modeling, and analytical thinking is essential, often supported by a degree in engineering or a related field. Expertise with simulation software such as Aspen HYSYS, CHEMCAD, or MATLAB, and familiarity with process control systems, are highly valued, along with relevant certifications. Effective communication, problem-solving, and collaboration skills help professionals convey complex concepts and work efficiently with multidisciplinary teams. These qualifications are crucial for creating accurate process models, optimizing operations, and supporting evidence-based decision-making in industrial environments.

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

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

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

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

Infographic showing various Process Simulation job openings in California as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 19% Part Time, 5% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $121,783 per year, or $58.5 per hour.

Senior Process Engineer

Jobtailor

Irvine, CA • On-site

$150 - $230/hr

Other

This job post has expired today. Applications are no longer accepted.


Job description

  • Lead process system design and technical definition for skid-mounted and modular process packages in an EPC execution environment
  • Develop and validate the process design basis, ensuring system operability and integration across mechanical, I&C, and package design
  • Develop and maintain steady-state and dynamic process simulation models using Aspen HYSYS
  • Validate simulation models against design basis, vendor data, and operating conditions
  • Perform sensitivity studies and optimization analyses
  • Generate stream tables, equipment duty calculations, and control strategy inputs
  • Develop and review process datasheets, control narratives, cause-and-effect inputs, process calculations, and reports
  • Coordinate with Mechanical, I&C, and Design teams on equipment sizing, control philosophy, layout, operability, and maintainability
  • Participate in HAZOPs, design reviews, and interdisciplinary coordination
  • Define process requirements for vendor packages and review vendor design, calculations, guarantees, and data
  • Support FAT, commissioning, startup, troubleshooting, fabrication, and operation
  • Resolve process-related issues during fabrication and operation
  • Ensure compliance with industry standards and client specifications
  • Support safety, operability, and reliability reviews

Requirements

  • 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 including Aspen HYSYS, Aspen Plus, and UniSim
  • Strong experience linking simulation outputs to engineering deliverables
  • Experience with skid-mounted systems and modular design
  • Strong understanding of engineering workflows
  • Experience with dynamic simulation and control validation preferred
  • Experience with cryogenic or industrial gas processes preferred
  • Background in packaged equipment or modular systems desired
  • Ability to perform required physical activities, including standing, walking, sitting, reaching, climbing or balancing, stooping or kneeling, talking and hearing, and using fingers and hands to feel objects, tools, or controls
  • Ability to work overtime, including weekdays, weekends, nights, and/or holidays, as workload dictates
  • Equivalent combination of education and/or experience may be accepted

Core Competencies

Demonstrates expertise in process system design and technical definition for skid-mounted and modular process packages, with advanced proficiency in process simulation tools such as Aspen HYSYS and Aspen Plus. Capable of ensuring system operability and integration across mechanical, I&C, and package design while adhering to industry standards.

Highest-signal resume keywords

  • Process System Design
  • Aspen HYSYS
  • Process Simulation
  • EPC Execution
  • Oil & Gas Industry Experience

ATS Optimization Keywords

Hard Skills

  • Process Simulation
  • Dynamic Simulation
  • Control Validation
  • Equipment Duty Calculations
  • Process Datasheets
  • Control Narratives
  • Cause-and-Effect Inputs
  • Process Calculations
  • Sensitivity Studies
  • Optimization Analyses

Soft Skills

  • Interdisciplinary Coordination
  • Problem Solving
  • Communication

Industry Keywords

  • Cryogenic Processes
  • Modular Design
  • Skid-Mounted Systems
  • HAZOP
  • EPC Industries

Tools & Technologies

  • Aspen Plus
  • UniSim
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