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Senior Process Engineer Jobs in Tustin, CA (NOW HIRING)

ZEISS

Process Engineer II

Ontario, CA · On-site

$99K - $124K/yr

As an engineering liaison, support CAPA projects and root cause analysis to investigate productivity or quality issues with assistance from Operations and Quality Management. * Assist Sr. Process ...

ZEISS

Process Engineer II

Ontario, CA · On-site

$99K - $124K/yr

As an engineering liaison, support CAPA projects and root cause analysis to investigate productivity or quality issues with assistance from Operations and Quality Management. * Assist Sr. Process ...

Black & Veatch

Sr Wastewater Process Engineer

Irvine, CA · On-site

$110K - $142K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Everforth, Cybercoders

Process Engineer IV

Irvine, CA · On-site

Process Engineer IV Process Engineer IV Position Overview Senior technical lead responsible for defining, delivering and commissioning complex process engineering projects primarily in life sciences ...

New

Applied Medical

Process Engineer

Lake Forest, CA · On-site

$71K - $80K/yr

Position Description As a Process Engineer at Applied Medical, you'll lead cross-functional improvement initiatives that drive consistency, efficiency, and scalability across a wide range of ...

Applied Medical

Process Engineer

Lake Forest, CA

$71K - $80K/yr

Position Description As a Process Engineer at Applied Medical, you'll lead cross-functional improvement initiatives that drive consistency, efficiency, and scalability across a wide range of ...

Anduril Industries

Process Engineer

Santa Ana, CA · On-site

Process Engineer, Maritime ABOUT THE TEAM Anduril Maritime delivers platforms, systems, and integrated effects in the maritime domain. Our autonomous vehicles (sub-surface and surface) are the ...

Applied Medical

Process Engineer

Lake Forest, CA · On-site

$71K/yr

Position Description As a Process Engineer at Applied Medical, you'll lead cross-functional improvement initiatives that drive consistency, efficiency, and scalability across a wide range of ...

Arcadis

Senior Process Mechanical Design Engineer

Irvine, CA · On-site

$96K - $133K/yr

As a Senior Process Mechanical Design Engineer specializing in water and wastewater projects, you will play a pivotal role in leading innovative mechanical design and process integration for cutting ...

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Showing results 21-40

All JobsProcess Engineer JobsSenior Process Engineer JobsSenior Process Engineer Jobs in Tustin, CA

Senior Process Engineer information

See Tustin, CA salary details

$78.6K

$126.9K

$178.7K

How much do senior process engineer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior process engineer in Tustin, CA is $126,929.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,000.00 and $141,000.00 per year, depending on experience, location, and employer.

What does a senior process engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

What are the key skills and qualifications needed to thrive as a senior process engineer?

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What are some common challenges senior process engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.

What is the difference between Senior Process Engineer vs Process Engineer?

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

How much does a senior process engineer earn?

A senior process engineer typically earns between $80,000 and $130,000 annually, depending on experience, industry, and location. They often have specialized skills in process optimization, project management, and may hold certifications like Six Sigma or PE licensure.

What are the most commonly searched types of Process Engineer jobs in Tustin, CA?

The most popular types of Process Engineer jobs in Tustin, CA are:

What job categories do people searching Senior Process Engineer jobs in Tustin, CA look for?

The top searched job categories for Senior Process Engineer jobs in Tustin, CA are:

What cities near Tustin, CA are hiring for Senior Process Engineer jobs?

Cities near Tustin, CA with the most Senior Process Engineer job openings:

Senior Process Engineer jobs near you
Infographic showing various Senior Process Engineer job openings in Tustin, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 2% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $126,929 per year, or $61 per hour.

Senior Process Engineer- Water Treatment (Membrane)

GHD Group

Irvine, CA • On-site

$108K - $180K/yr

Full-time

Posted 10 days ago

Job description


Join a global professional services leader! We are committed to solving the world's biggest challenges in the areas of water, energy, and urbanization.
GHD is seeking a Senior Process Engineer to join our water treatment team based out of Southern California, to lead the design, optimization and troubleshooting of advanced membrane filtration systems (RO, NF, UF) for municipal and industrial applications, supporting work across GHD's West Region.
Our group focuses on water and wastewater treatment, asset management, operations support, and program management for public and private clients. You will use your experience and knowledge and be involved in exciting projects that will offer an opportunity to provide technical solutions.
As a Senior Process Engineer, you will provide design and management support and relating to the design of membrane water treatment projects. Further, you will have the opportunity to be a key member of the team responsible for the delivery of sophisticated and innovative projects, the mentorship of technicians and other engineers, and grow your competence towards becoming a design leader.
The successful candidate will have strong leadership and demonstrated engineering skills relating to membrane filtration technology. We are seeking self-motivated and active networkers who value building credible relationships with clients and the community.
Responsibilities include but are not limited to:
  • Collaborate with fellow engineers on a wide range of projects.
  • Participate in the planning, design and construction oversight of membrane water treatment related infrastructure projects.
  • Develop technical reports and proposals.
  • Guide, train, develop and mentor junior and intermediate process engineers.
  • Work with clients for planning purposes, providing updates and building positive relationships.
  • Interact with clients, suppliers, and regulators to help create successful concepts

Our Hybrid Work Model: Be part of the dynamic culture! Our workplace thrives on a hybrid model, combining in-office collaboration and flexibility. Join us in the office three days a week to contribute, connect and excel in our vibrant environment.
The Ideal candidate will have the following experience/skills:
  • Proven experience in leading the design, optimization, and troubleshooting of advanced membrane filtration systems (such as Reverse Osmosis, Nanofiltration, Ultrafiltration, and Membrane Bioreactors) for municipal and industrial applications.
  • Deep knowledge of water chemistry, membrane fouling mechanisms, normalization software and producing mass/energy balances for membrane separation units.
  • Ability to select appropriate membrane materials, module configurations, and pretreatment/post-treatment processes to maximize recovery rates and energy efficiency.
  • Ability to excel in a multidisciplinary team environment as well as independently. Lead multidisciplinary teams, coordinate with external clients or vendors, and act as the technical specialist during safety reviews.
  • Demonstrated ability of effective time management, handling priorities, and working in a fast-paced environment.
  • Ability to provide hands-on technical support during plant startup, performance testing, root-cause investigations, and ongoing operational troubleshooting.
  • Attention to detail and ability to complete diverse assignments.
  • Effective written and verbal communication skills.

Education:
  • Bachelor's degree (Master's preferred) in Chemical, Environmental, or Process Engineering from an accredited university.

Requirements
  • Minimum 8 years of experience
  • Professional Engineer (PE) license in California, or the ability to obtain within 1 year.

As a multicultural organization, we encourage individual achievement and recognize the strength of a diverse workforce. GHD is an equal opportunity employer. We provide equal employment opportunities to all qualified employees and applicants without regard to race, creed, religion, national origin, citizenship, color, sex, sexual orientation, gender identity, age, disability, marital status or veteran status.
Salary Range: $108,000-$180,000 based on experience and location
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