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Refinery Process Engineer Jobs in California (NOW HIRING)

Nokia

PIC Process Integration Engineer

Sunnyvale, CA · On-site

Work closely with process engineers and other internal stakeholders to meet process and equipment milestones. Process Development & Integration : Develop and optimize process modules (etch ...

Oclaro

Staff Wafer Process Engineer

San Jose, CA

$108K - $155K/yr

Guide process engineers and technicians, promoting a culture of technical excellence and data-driven decision-making. Technical Skills & Qualifications * Deposition Expertise: In-depth knowledge of ...

Applied Medical

Process Engineer

Lake Forest, CA

$71K - $80K/yr

... refine how products are made, the Process Engineer role offers an exciting opportunity to make scalable impact in medical manufacturing. Benefits * Competitive compensation range: $71,000 - $80,000 ...

Applied Medical

Process Engineer

Lake Forest, CA · On-site

$71K/yr

... refine how products are made, the Process Engineer role offers an exciting opportunity to make scalable impact in medical manufacturing. Benefits * Competitive compensation range: $71,000 - $80,000 ...

Applied Medical

Process Engineer

Lake Forest, CA

$71K - $80K/yr

... refine how products are made, the Process Engineer role offers an exciting opportunity to make scalable impact in medical manufacturing. Benefits * Competitive compensation range: $71,000 - $80,000 ...

Actalent

Process Engineer (2nd Shift)

San Jose, CA

$52.88 - $57.69/hr

The Process Engineer will develop and refine reflow profiles, support the SMT line, and act as the subject matter expert for assigned lines. This position is ideal for an experienced process engineer ...

Worley

Process Engineer Level II

Monrovia, CA · On-site

$110K - $162K/yr

You will provide process engineering services and leadership projects to Worley' and its customers ... Experience in refining, petrochemical, or upstream facilities with complex relief systems.

Eichleay, Inc

Process Engineers

Orange, CA

Minimum of 5+ years' experience in Refining, Chemicals, Power, Life Sciences, Food & Beverage ... Perform process engineering calculations such as mass and energy balances, heat transfer, fluid ...

Eichleay, Inc

Process Engineers

Larkspur, CA · On-site

Minimum of 5+ years' experience in Refining, Chemicals, Power, Life Sciences, Food & Beverage ... Perform process engineering calculations such as mass and energy balances, heat transfer, fluid ...

XLR8 EMS

Sr. Process Engineer

San Diego, CA · On-site

$110K - $142K/yr

Establish and refine wave soldering profiles for through-hole components. * Define and implement ... process parameters, work instructions, and control plans. * Partner with quality engineering to ...

Oklo

Process Engineer - Fuel Recycling

Santa Clara, CA · On-site

$100K - $160K/yr

Developing technical parameters and deploying and operating test systems to use in refining system ... a Process Engineer that is * Passionate about clean energy * An optimist at heart * Passionate ...

Oklo

Process Engineer - Fuel Recycling

Santa Clara, CA · On-site +1

$100K - $160K/yr

Developing technical parameters and deploying and operating test systems to use in refining system ... a Process Engineer that is * Passionate about clean energy * An optimist at heart * Passionate ...

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All JobsRefinery Process Engineer JobsRefinery Process Engineer Jobs in California

Refinery Process Engineer information

See California salary details

$70.6K

$135.6K

$229.9K

How much do refinery process engineer jobs pay per year?

As of Jul 24, 2026, the average yearly pay for refinery process engineer in California is $135,586.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,200.00 and $145,600.00 per year, depending on experience, location, and employer.

What does a Refinery Process Engineer do?

A Refinery Process Engineer is responsible for designing, optimizing, and troubleshooting processes within an oil refinery to ensure efficiency, safety, and regulatory compliance. They analyze data, monitor equipment performance, and recommend improvements to enhance productivity and reduce costs. Additionally, they work closely with operations, maintenance, and safety teams to implement process modifications and resolve technical issues. Their role is crucial in maximizing yield, minimizing energy consumption, and ensuring environmental compliance.

What are some of the typical day-to-day responsibilities for a Refinery Process Engineer?

As a Refinery Process Engineer, your main responsibilities typically include monitoring and optimizing production processes, troubleshooting technical issues, and ensuring compliance with safety and environmental regulations. You may also be involved in analyzing process data, implementing improvements, and coordinating with operations, maintenance, and other engineering teams to maintain efficient plant performance. Your day could involve both desk work—such as process modeling and reporting—and fieldwork in the refinery, observing equipment and working closely with plant personnel. This blend of tasks helps ensure the refinery operates safely, efficiently, and at peak capacity.

What are the key skills and qualifications needed to thrive in the Refinery Process Engineer position, and why are they important?

To excel as a Refinery Process Engineer, a strong background in chemical engineering, process optimization, and safety protocols is essential, typically supported by a relevant engineering degree. Proficiency with process simulation software (such as Aspen HYSYS or CHEMCAD), knowledge of distributed control systems (DCS), and familiarity with industry certifications like Six Sigma or Professional Engineer (PE) licensure are highly valued. Problem-solving abilities, strong communication, and teamwork skills help professionals navigate dynamic refinery environments and coordinate with cross-functional teams. These competencies are crucial for ensuring efficient, safe, and compliant operations within complex refinery processes.

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Refinery Process Engineer jobs near you
Infographic showing various Refinery Process Engineer job openings in California as of July 2026, with employment types broken down into 9% As Needed, 81% Full Time, and 10% Contract. Highlights an 89% In-person, and 11% Remote job distribution, with an average salary of $135,586 per year, or $65.2 per hour.
PIC Process Integration Engineer

PIC Process Integration Engineer

Nokia

Sunnyvale, CA • On-site

Full-time

Posted 29 days ago

Nokia rating

8.6

Company rating: 8.6 out of 10

Based on 5 frontline employees who took The Breakroom Quiz

8th of 83 rated telecommunications companies

Job description


We are seeking a highly motivated and technically skilled engineer to lead the bring-up and qualification of a new Indium Phosphide (InP) photonics semiconductor fabrication facility. This role is critical to establishing high-yield, scalable, and reliable photonic device manufacturing processes in a cutting-edge fab environment. The ideal candidate will have experience with InP or compound semiconductor process development, fab tool qualification, and yield improvement.
Responsibilities
Fab Bring-Up & Equipment Qualification: Support the start-up and drive the qualification of front-end and back-end process tools for InP-based photonic device fabrication. Work closely with process engineers and other internal stakeholders to meet process and equipment milestones.
Process Development & Integration: Develop and optimize process modules (etch, deposition, lithography, diffusion, metallization, etc.) for InP-based PICs (Photonic Integrated Circuits). Ensure process robustness and repeatability across the full device flow.
Yield & Reliability Engineering: Establish process monitoring metrics, inline metrology strategies, and SPC to drive yield improvement. Identify root causes of process excursions or device failures; lead corrective actions using FA tools and DOE methodology.
Cross-Functional Collaboration: Interface with device design, test, and packaging teams to ensure manufacturability and alignment on performance targets.
Documentation & Technology Transfer: Develop and maintain detailed process documentation, FMEA analyses, and qualification reports. Support the transfer of developed processes from R&D to pilot and volume production.
Qualifications
  • BS/MS/PhD in Electrical Engineering, Materials Science, or related field.
  • Hands-on experience in compound semiconductor fabrication, with a strong preference for InP-based photonics.
  • Understanding of semiconductor process integration, yield improvement methodologies, and cleanroom practices.
  • Experience with fab tool bring-up and qualification, including troubleshooting and maintenance support.
  • Strong problem-solving skills, with a data-driven mindset and familiarity with tools like JMP, Python and MES/SPC software packages.
  • Experience with SPC, Design for Manufacturing (DfM), and six-sigma principles for continuous improvement is a plus.
  • Excellent communication and teamwork skills; able to work in a fast-paced startup or ramp-up environment.

What We Offer
  • A chance to contribute to cutting-edge photonic technologies in a globally recognized company.
  • A collaborative, innovative work environment with multidisciplinary technical teams.
  • The opportunity to directly impact the development of high-performance optical networking solutions at Nokia.

If you're passionate about advancing optical communication technology and eager to tackle challenging technical problems in PIC development, we invite you to apply.
About Us
Come create the technology that helps the world act together
Nokia is committed to innovation and technology leadership across mobile, fixed and cloud networks. Your career here will have a positive impact on people's lives and will help us build the capabilities needed for a more productive, sustainable, and inclusive world.
We challenge ourselves to create an inclusive way of working where we are open to new ideas, empowered to take risks and fearless to bring our authentic selves to work
What we offer
Nokia offers continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture where people thrive and are empowered.
Nokia is committed to inclusion and is an equal opportunity employer
Nokia has received the following recognitions for its commitment to inclusion & equality:
  • One of the World's Most Ethical Companies by Ethisphere
  • Gender-Equality Index by Bloomberg
  • Workplace Pride Global Benchmark

At Nokia, we act inclusively and respect the uniqueness of people. Nokia's employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.
We are committed to a culture of inclusion built upon our core value of respect.
Join us and be part of a company where you will feel included and empowered to succeed.

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