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Process Simulation Jobs in California (NOW HIRING)

... fusion process * Work with software engineers to integrate low-level solvers into simulation ... pipelines and interface with hardware systems * Guide the integration of computational geometry and ...

Create Simulation Studies in Process Simulate on Teamcenter (Tecnomatix) * Help create and maintain customer product manufacturing data for automated work centers. * Help maintain kinematic libraries ...

As a software engineer on the NDE & Materials Software team, you will develop and advance the in-house multiphysics simulation engine to optimize manufacturing processes and increase part yield.

... fusion process * Work with software engineers to integrate low-level solvers into simulation ... pipelines and interface with hardware systems * Guide the integration of computational geometry and ...

... fusion process * Work with software engineers to integrate low-level solvers into simulation ... pipelines and interface with hardware systems * Guide the integration of computational geometry and ...

... fusion process * Work with software engineers to integrate low-level solvers into simulation ... pipelines and interface with hardware systems * Guide the integration of computational geometry and ...

Collaborate with cross-functional teams to implement new features and automate processes. * Conduct testing and validation of simulation results using industry-standard benchmarks. BASIC ...

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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 Jul 21, 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 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 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 is a Process Simulation job?

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 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:
What job categories do people searching Process Simulation jobs in California look for? The top searched job categories for Process Simulation jobs in California are:
Infographic showing various Process Simulation job openings in California as of July 2026, with employment types broken down into 2% Internship, 95% Full Time, and 3% Contract. Highlights an 98% In-person, and 2% Remote job distribution, with an average salary of $121,783 per year, or $58.5 per hour.
Process Design Technologist

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 13 days ago


Marathon Petroleum rating

6.4

Company rating: 6.4 out of 10

Based on 201 frontline employees who took The Breakroom Quiz

49th of 75 rated oil and gas companies


Job description

An exciting career awaits you

At MPC, we're committed to being a great place to work - one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment.

POSITION SUMMARY:

The Rening Technology group seeks to create maximum value for our shareholders through pro-active unit optimization and achieve "best in class" performance based upon yields, protability, reliability, safety and environmental compliance. Rening Technology provides technical expertise, operational support, commercial support, process optimization, new technology development and process design support to Marathon's renery system.

The Process Design Technologist role is the main conduit for identifying and implementing projects and processes to improve Marathon's Processing Units to achieve greater performance and eciency. The Process Design Technologist will work with Process Technologists and Refinery Unit Engineers along with external licensors and vendors with the purpose of identifying innovative solutions to drive renery performance improvements.

This position will report to the Process Engineering Technology Manager. This position maybe based in any of Marathon's 16 renery locations, or the Findlay, Ohio or San Antonio, Texas headquarters. Travel requirement for this position is approximately 25%.

KEY RESPONSIBILITIES:
Provides process engineering technical leadership to ensure clarity and accuracy of design against project goals and objectives. Proactively engages with Refinery Technical Service engineers, refinery and corporate environmental, and Operations to ensure scope clarity and accuracy against project goals and objectives. Collaborates with other engineering disciplines. Identify and develop modifications to optimize the process, improve reliability, improve safety, improve sustainability, or improve environmental performance. Project size may range from small single unit modifications to large capital projects involving multiple refinery process units. Drives assigned scoping studies and provide leadership for idea generation in the pre-conceptual phase. Perform process simulations and calculations to support equipment sizing, hydraulic analysis, and energy optimization.
May lead process engineering for comprehensive Conceptual phase content. Works with Asset Development Engineers to develop and understand business case(s) and associated economic drivers. Develops project economics and work with Engineering to complete decision support packages. Owns process related deliverables and define a solid scope in Feasibility for effective Definition stage deliverables. Supports detailed engineering resulting in complete "Issued for Construction" drawings that maintain design against prior stage definition, overall project goals, and Implementation stage objectives. Provides process input for project pre-startup review and startup. Works with unit engineers to organize and conduct unit performance tests to determine if benefits are realized.
Provides oversight to engineering contractors performing process work for project development. Develops technical and scope documents to support process engineering oversight of assigned projects. Leads development of PFDs, P&IDs, PSM activities and reviews, control narratives, and cause & effect documents from initial design. Participates in development and implementation of operator training and operating manuals. Provides leadership for the development, maintenance and overall quality of other typical process engineering deliverables, including process design basis, heat and mass balances, process simulations, equipment sizing and design, ISBL/OSBL (inside battery limits, outside battery limits) interface conditions, and other items relevant to assigned projects.
Maintains working relationships with third-party licensors, technology vendors, catalyst/chemical suppliers, and engineering contractors to provide technical direction to refinery project teams and during contract revisions / negotiations. Providing technical guidance related to operating procedures, environmental compliance, management of change, safety and relief system operation and design. Ensures adherence to process engineering guidelines, refining standard practices, and supporting process hazard reviews and incident investigations.
Advises engineers and drive complex troubleshooting efforts that span multiple units / multiple sites. Interfaces with other departments and disciplines to develop repair/redesign options to address acute or chronic operating problems that span broad or chronic refinery-wide problems such as product quality issues, corrosion and fouling mechanisms, and equipment failures. Draws on learnings to influence changes to refining-wide corporate standards and guidance related to design, equipment care, and process operation in support of health, environmental, and process safety objectives.
Collaborates with commercial, feedstock/products organizations, operations, and refinery process engineers to identify and accomplish site and regional optimization strategies by changing operation of existing assets. Recommends new operating conditions; understand advanced process control concepts and participate in development of new control strategies for profit or efficiency improvement. Assesses viability of producing new products / meeting new specifications for entry into markets. Works with Asset Development Engineers and Refinery Project Teams to develop and understand business case(s) and associated economic drivers.

EDUCATION AND EXPERIENCE:

Minimum Qualifications:
Bachelor's Degree in Chemical Engineering required.
Eight (8) years or more years of process design engineering experience within refining or other heavy industry required.
Proficiency in process simulation tools (e.g., Aspen Plus, Aspen Hysys, KBC Petro-Sim, HTRI).
Strong knowledge of process engineering fundamentals, equipment design, safety standards, and project execution workflows.

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location:

Findlay, Ohio

Job Requisition ID:

00022781

Pay Min/Max:

$141,300.00 - $243,800.00 Salary

Grade:

13 - 14

Location Address:

539 S Main St

Additional locations:

Anacortes, Washington, Canton, Ohio, Catlettsburg, Kentucky, Cincinnati, Ohio, Detroit, Michigan, El Paso, Texas, Garyville, Louisiana, Kenai, Alaska, Mandan, North Dakota, Martinez, California, Robinson, Illinois, Salt Lake City, Utah, San Antonio, Texas, St Paul Park, Minnesota, Texas City, Texas, Wilmington, California

Education:

Bachelors (Required)

Employee Group:

Full time

Employee Subgroup:

Regular

Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. If you would like more information about your EEO rights as an applicant, click here.
If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available atmympcbenefits.com. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.
Equal Opportunity Employer: Veteran / Disability

We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.


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About Marathon Petroleum

Sourced by ZipRecruiter

Marathon Petroleum Corporation, headquartered in Findlay, Ohio, US, is a leading independent petroleum refining, marketing, and transportation company. Their official website can be found at marathonpetroleum.com. The company, part of the energy sector, was established in 1887, making it one of the oldest petroleum companies in the US. It operates an integrated refining, marketing and transportation system concentrated primarily in the Midwest, Northeast, East Coast, Southeast and Gulf Coast of the United States. This includes refineries, pipelines, and terminals that process and transport crude oil and refined products.

Industry

Oil and gas extraction

Company size

10,000+ Employees

Headquarters location

Findlay, OH, US

Year founded

1887