Top 263 Principal process engineer Jobs

Associate Principal
Clayco —Chicago, IL
- Full-time
- Construction site
- Bachelor of Science
- Residential
- Paid holidays
- Disability insurance
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Senior Principal Process Engineer
Coherent Corp. —Sunnyvale, CA
- $127,875 - $223,813 a year
- Full-time
- 7 years
- Microsoft Outlook
- Bachelor of Science
Principal R&D Engineer - Medical Device Process Development
Entegee —Tempe, AZ
- Up to $75 an hour
- Full-time
- 5 years
- Engineering
- Fair chance
- Commuter assistance
- Disability insurance
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6d
Global Process Engineer, Principal
Entegris, Inc —Chaska, MN
- $140,000 - $186,500 a year
- Full-time
- Bachelor of Science
- Office
- Ability to lift 50 pounds
- Relocation assistance
- Health insurance
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Principal Process Engineer - Fractionation
Valero —San Antonio, TX
- Bachelor of Science
- 11+ years
- Bachelor's degree
Principal Process Engineer
Parsons —Remote
- $103,500 - $181,100 a year
- Remote
- Bachelor of Science
- Bachelor's degree
- Senior level
- Wellness program
- Paid holidays
Principal Process Engineer
Adtran —Huntsville, AL
- Full-time
- Senior level
Principal Engineer I - Process Engineering
Freeport-McMoRan —Phoenix, AZ
- $120,000 - $167,500 a year
- Email
- Writing skills
- Research
- 3 years
- Paid holidays
- Disability insurance
Principal Process Engineer
Kent —Corpus Christi, TX
- Full-time
- 11+ years
- English
- Office
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Photolithography Process Development Engineer - Principal
SkyWater Technology Foundry, Inc. —Kissimmee, FL
- $136,960 - $205,440 a year
- Full-time
- Bachelor of Science
- Bachelor's degree
- Doctor of Philosophy
- Paid holidays
- Disability insurance
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Principal Process Engineer, Global Manufacturing Science and Technology, Cell Therapy Technical Operations
AstraZeneca —Gaithersburg, MD
- $122,312.80 - $183,469.20 a year
- Bachelor of Science
- Bachelor's degree
- Doctor of Philosophy
- Health insurance
- Dental insurance
3.1. Principal Chemical Process Engineer-Separation
Phoenix Tailings —Burlington, MA
- $150,000 - $180,000 a year
- Full-time
- 8 years
- Continuous improvement
- Doctor of Philosophy
- Health insurance
- Dental insurance
Process Engineer, Principal
Audubon Companies —Houston, TX
- Engineering
- Office
- Math
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Principal Mechanical Engineer
Hanwha Energy USA —Houston, TX
- $180,000 - $200,000 a year
- Remote
- Residential
- Mentoring
- Senior level
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Sr. Principal Engineer, R&D – Product Process Development & Scale Up
Kraft Heinz Company —Glenview, IL
- $120,800 - $151,000 a year
- 8 years
- Bachelor's degree
- Training & development
- AD&D insurance
- Paid holidays
Principal Process Engineer – API + OSD
Design Group —Raleigh, NC
- $170,000 - $240,000 a year
- Full-time
- Background check
- Bachelor of Science
- Pass drug screening
Principal Process Engineer
GLOBALFOUNDRIES —Malta, NY
- $130,957 - $146,000 a year
- Full-time
- Bachelor's degree
- Mentoring
- Senior level
Principal Process Engineer
Worley —Mesa, AZ
- Analysis skills
- Construction experience
- Senior level
Principal Engineer, Process Integration
Western Digital —Fremont, CA
- $145,800 - $194,400 a year
- Full-time
- SQL
- Analysis skills
- Doctor of Philosophy
- Health savings account
- AD&D insurance
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Principal Process Engineer
Leonardo DRS —Dallas, TX
- Engineering
- 8 years
- Senior level
- Paid parental leave
- Health savings account

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Associate Principal

Clayco -
Chicago, IL

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Job Details

Full-time

Benefits

Paid holidays
Disability insurance
Health insurance
Dental insurance
401(k)
Flexible spending account
Paid time off
Employee assistance program
Vision insurance
Life insurance

Qualifications

Industrial equipment design
Chemical process safety
Mechanical design
Team leadership
Design of manufacturing processes
Bachelor's degree in engineering
Design engineering
Leading team collaboration initiatives
Industrial equipment
Project leadership
Professional Engineer
Manufacturing company experience
Piping diagrams drawing
Cross-functional communication

Full Job Description

About Us

Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the “art and science of building,” providing fast-track, efficient solutions for industrial, commercial, institutional, and residential related building projects.

About LJC
LJC Design & Engineering (LJC) is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, engineering, and construction.

The Role We Want You For

This role is ideal for a highly technical engineering leader with strong industrial process knowledge, sound engineering judgment, and an entrepreneurial mindset. You will lead process design efforts for complex industrial projects, collaborating closely with multidisciplinary teams to deliver safe, efficient, and innovative process solutions that align with our clients’ operational goals.

The Specifics of the Role

Lead process engineering design efforts for pet food, meat processing, and industrial manufacturing projects
Develop project scopes and establish process design basis documentation
Create and review Process Flow Diagrams (PFDs), material balances, and Piping & Instrumentation Diagrams (P&IDs)
Specify process mechanical equipment and support instrumentation design activities
Collaborate with discipline leads to ensure successful implementation of process designs across all project phases
Interpret plant operating data and develop process solutions, often utilizing engineering assumptions and judgment in early project stages
Ensure process systems are designed safely, efficiently, and in alignment with client operational requirements
Utilize and enhance internal engineering tools and standards to support execution efficiency
Perform process calculations and simulations using software such as AFT Fathom, AFT Arrow, HTRI, and similar process engineering tools
Coordinate with vendors, clients, and internal teams to support equipment selection, process integration, and project execution
Support construction, commissioning, startup, and troubleshooting activities as needed
Mentor junior engineering staff and contribute to the development of engineering best practices

Requirements:

Bachelor of Science in Chemical Engineering or Mechanical Engineering from an ABET-accredited university or college
8–15+ years of experience in process engineering within industrial manufacturing environments
Successfully passed the Professional Engineer (PE) exam
Strong understanding of process engineering principles, industrial systems, and process safety
Experience developing PFDs, P&IDs, process calculations, and equipment specifications
Familiarity with lean manufacturing or lean process methodologies
Experience with field construction support, commissioning, and process startup activities preferred
Strong engineering judgment and ability to design effectively with incomplete or evolving information
Excellent communication, leadership, and collaboration skills
Entrepreneurial mindset with the ability to thrive in a fast-paced, design-build environment.

Some Things You Should Know

Our clients and projects are nationwide
No other builder can offer the collaborative design-build approach that Clayco does
We work on creative, complex, award-winning, high-profile jobs
The pace is fast

Why Clayco and LJC?

2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.
2025 ENR Top 400 – Top Data Center Contractor (Top 3).
2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5).
2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).

Benefits

Discretionary Annual Bonus: Subject to company and individual performance
Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more

Compensation

The salary range for this position considers a wide range of factors in making compensation decisions including but not limited to: education, qualifications, skills, training, experience, certifications, internal equity, and location. Compensation decisions are dependent on the facts and circumstances of each case.

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Refine Your Search

principal process engineer jobs

Associate Principal

Senior Principal Process Engineer

Principal R&D Engineer - Medical Device Process Development

Global Process Engineer, Principal

Principal Process Engineer - Fractionation

Principal Process Engineer

Principal Process Engineer

Principal Engineer I - Process Engineering

Principal Process Engineer

Photolithography Process Development Engineer - Principal

Principal Process Engineer, Global Manufacturing Science and Technology, Cell Therapy Technical Operations

3.1. Principal Chemical Process Engineer-Separation

Process Engineer, Principal

Principal Mechanical Engineer

Sr. Principal Engineer, R&D – Product Process Development & Scale Up

Principal Process Engineer – API + OSD

Principal Process Engineer

Principal Process Engineer

Principal Engineer, Process Integration

Principal Process Engineer

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