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493 plant process engineer jobs found

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Onsite plant process engineer California
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AE
Dec 25, 2025
Full time
Senior Plant Engineer, Mechanical & Process
Antora Energy San Jose, CA, USA
Antora builds and deploys thermal batteries to power always-on industrial operations with low-cost energy. Factory-built in the United States, Antora's modular thermal batteries deliver reliable heat and power, enabling industrial facilities of any size to decarbonize predictably and profitably. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry. We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy. Position Summary We are seeking a self-driven, passionate Mechanical/Process Engineer to help deliver zero-carbon industrial heat and power through our novel...
PG
Mar 28, 2026
Full time
Supervisor, Mechanical Engineering Services and Numerical Analysis
Pacific Gas and Electric Company Danville, CA, USA
Requisition ID # 171236 Job Category: Engineering / Science Job Level: Supervisor Business Unit: Strategy & Growth Work Type: Onsite Job Location: San Ramon Department Summary: The Applied Technology Services (ATS) Engineering staff provides engineering, testing and analysis services and expertise across multiple disciplines to various company organizations to identify, diagnose and solve technical problems. The staff provides consultation and advice to clients to proactively avoid future problems by specifying equipment, materials and methods that are best practices in the industry. Services include inspections, failure analysis, performance assessments, and evaluations on a wide variety of systems and components. The Mechanical Engineering Services (MES) and Numeric Analysis Unit is one of the groups within ATS. This Unit provides inspection, testing, and engineering services to support the PG&E system. MES work includes performing plant condition and performance...
AS
Mar 27, 2026
Contractor
Temporary Electrical Engineer (3.26)
$106,219 - $148,707 yearly
American States Water Company San Dimas, CA, USA
Golden State Water Company is one of the largest investor-owned water utilities in the United States. We deliver quality, reliable water to more than 1 million people in over 80 communities throughout California. Golden State Water has been in business for more than 90 years because we put customers first. Job Summary: The Electrical Engineer is responsible for self-performing, and/or managing consultants in the preparation of electrical design services including power, process control, and telemetry for the operation and control of potable water facilities. Coordinates with electrical utilities representatives for new or upsized electrical services to water plants. Prepares process control narratives for use by SCADA integrators. Provides electrical engineering support to Company electricians. Reviews equipment and material submittals to ensure compliance with project objectives and Company standards. ESSENTIAL DUTIES AND RESPONSIBILITIES: • Performs and manages multiple...
NB
Mar 26, 2026
Full time
Systems Engineer I
$82,012 - $118,917 yearly
Niagara Bottling, LLC Diamond Bar, CA, USA
At Niagara, we're looking for Team Members who want to be part of achieving our mission to provide our customers the highest quality most affordable bottled water. Consider applying here, if you want to: Work in an entrepreneurial and dynamic environment with a chance to make an impact. Develop lasting relationships with great people. Have the opportunity to build a satisfying career. We offer competitive compensation and benefits packages for our Team Members. Systems Engineer I Systems engineering is an interdisciplinary of engineering that focuses on how to design and manage complex engineering systems over their life cycles. Issues such as reliability, logistics, coordination of different teams, evaluation measurements, and other disciplines that becomes more difficult when dealing with large or complex projects. Systems engineering deals with work-processes, optimization methods, and risk management tools in such projects. It overlaps technical and human-centered...
EN
Mar 26, 2026
Full time
Retro Commissioning Engineer II
$111,771 - $149,204 yearly
ENFRA LLC Los Angeles, CA, USA
About Us At ENFRA, we blend a rich history with a forward-looking vision. With over 100 years of experience, we are a pillar of stability in the energy infrastructure industry and a leader in innovative energy solutions. Our commitment to leveraging emerging technologies ensures that we remain at the forefront of the Energy-as-a-Service sector. We believe in growth-not just for our business, but for our people. Our team members have the opportunity to advance their careers in a supportive environment that values continuous learning and development. We embrace innovation and encourage creative problem solving to tackle the energy infrastructure and energy challenges of tomorrow. Inclusion is at the heart of our culture. We strive to create a workplace where every voice is heard and valued, fostering a collaborative environment where diverse perspectives drive our success. Join us to be part of a legacy of excellence and a future of groundbreaking advancements. At ENFRA,...
AE
Mar 25, 2026
Full time
Lead Plumbing Engineer
$44.83 - $57.87 hourly
ACCO Engineered Systems Costa Mesa, CA, USA
Job Description General Job Description: This position is responsible for independently delivering engineering services, from conceptual design through construction completion. Essential Duties & Responsibilities Complete project planning, coordination, and execution with some oversight Independently complete conceptual design through construction drawing development for multiple small and medium sized standard projects simultaneously Create conceptual designs certified to Building Codes, Energy Codes, and LEED standards Responsible for plumbing calculations, design and layout of equipment, plumbing systems on assigned projects Solid understanding of commercial plumbing applications such as gas piping, waste and vent, domestic water distribution, and kitchen plumbing design Appropriate engagement of engineering applications and/or managers in project decisions Proactively communicate and coordinate project designs with Project Management, Construction...
AE
Mar 25, 2026
Full time
Lead Plumbing Engineer
$49.09 - $63.37 hourly
ACCO Engineered Systems Pleasanton, CA, USA
Job Description General Job Description: This position is responsible for independently delivering engineering services, from conceptual design through construction completion. Essential Duties & Responsibilities Complete project planning, coordination, and execution with some oversight Independently complete conceptual design through construction drawing development for multiple small and medium sized standard projects simultaneously Create conceptual designs certified to Building Codes, Energy Codes, and LEED standards Responsible for plumbing calculations, design and layout of equipment, plumbing systems on assigned projects Solid understanding of commercial plumbing applications such as gas piping, waste and vent, domestic water distribution, and kitchen plumbing design Appropriate engagement of engineering applications and/or managers in project decisions Proactively communicate and coordinate project designs with Project Management, Construction...
AE
Mar 22, 2026
Full time
Lead Structural Engineer
ACCO Engineered Systems Costa Mesa, CA, USA
Job Description General Job Description: This position is responsible for independently delivering engineering services, from conceptual design through construction completion. Essential Duties & Responsibilities Complete project planning, coordination, and execution with some oversight Independently complete conceptual design through construction drawing development for large complex project or multiple projects simultaneously Appropriate engagement of engineering applications and/or managers in project decisions Proactively communicate and coordinate project designs with Project Management, Construction and Service departments, Controls, and other trade partners Field engineering: assist with project execution, trade coordination, scheduling, document management and problem solving/troubleshooting, as required Effectively and professionally communicate with colleagues and project team members Manage time to meet project schedules and task deadlines Strong...
AE
Mar 22, 2026
Full time
Senior Structural Engineer
ACCO Engineered Systems Costa Mesa, CA, USA
Job Description General Job Description: This position is responsible for independently delivering engineering services, with a proven track record of excellence from conceptual design through construction completion. Essential Duties & Responsibilities Expert in project planning, coordination, and execution Independently complete conceptual design through construction drawing development for large complex project or multiple projects simultaneously Appropriate engagement of engineering applications and/or managers in project decisions Proactively communicate and coordinate project designs with Project Management, Construction and Service departments, Controls, and other trade partners Field engineering: assist with project execution, trade coordination, scheduling, document management and problem solving/troubleshooting, as required Effectively and professionally communicate with colleagues and project team members Expert level understanding of building...
BE
Mar 22, 2026
Intern
Systems Mechanical Engineering Intern
$36.00 - $39.00 hourly
Bloom Energy San Jose, CA, USA
This is a 10-week internship starting June 8 or 15 and is fully on-site at the listed office location. Company Overview At Bloom Energy, our vision for a world powered by clean, reliable, and affordable energy is more than just a dream-we're making it a reality. For over two decades, we've been at the forefront of the global energy transition, pioneering solutions that empower critical industries to thrive in a rapidly digitizing, energy-intensive world. From revolutionizing power for AI-driven data centers to ensuring resilience for hospitals, electric grids, manufacturing facilities, and utilities, our solid oxide fuel cell (SOFC) and solid oxide electrolyzer (SOEC) technologies are redefining what's possible by delivering energy abundance for all. With more than 30,000 fuel cell modules deployed worldwide, we are the trusted partner for Fortune 100 companies and innovators alike. Our cutting-edge solutions enable unparalleled "time-to-power" capabilities, reliability, and...
PC
Mar 22, 2026
Full time
Plant Optimization Engineer (Kingsburg, CA)
$83,000 yearly
Packaging Corporation of America Kingsburg, CA, USA
As a Fortune 500 company, Packaging Corporation of America (PCA) is an ideas and solutions company. Our corrugated packaging business seeks to be the leader in helping our customers - large and small - package, transport and display products of all kinds. Our white paper business delivers Paper With Purpose by providing the highest level of customer service and operational excellence. We have approximately 15,000 team members in more than 100 locations in the United States that strive to meet the local needs of our customers. Our mission is to serve the needs of our customers, today and tomorrow, with products and services that exceed expectations for performance and environmental responsibility. People • Customers • Trust PCA is currently recruiting for a Plant Optimization Engineer based at the Kingsburg, CA corrugated box plant facility. Description of role: The Plant Optimization Engineer Position (POE) is a developmental program which focuses on hiring recent college...
LA
Mar 13, 2026
Full time
Project Engineer
Lactalis American Group Turlock, CA, USA
Job Type Full-time Description Ready for more than just a job? Build a career with purpose. At Lactalis in the USA, we're committed to providing meaningful opportunities for our people to learn, grow, and thrive-whether you're just starting your journey with us or looking to take the next step in your career. From day one, we offer the tools and support to help you succeed. As the world leader in dairy, Lactalis is a family-owned company with over 85,000 pragmatic and ambitious professionals across the globe. Each day, we're proud to produce award-winning dairy products that bring people together. In the US, we proudly offer an unrivaled house of beloved brands, including Galbani® Italian cheeses and ricotta, Président® specialty cheeses and butters, Kraft® natural and grated cheeses, Breakstone's® cottage cheese, Cracker Barrel®, Black Diamond® cheddar, and Parmalat® milk. Our yogurt portfolio includes siggi's®, Stonyfield Organic®, Brown Cow™, Oui®, Yoplait®, Go-Gurt®,...
WB
Mar 09, 2026
Full time
Sr. Plant Engineer
$130,000 - $150,000 yearly
Wm Bolthouse Farms, Inc. Bakersfield, CA, USA
THE ROLE: This position will report to the: Engineering Director Travel Requirement: None Location : Bakersfield, CA FLSA Status: Exempt Employment Category: Full-Time Regular Pay Range: $130,000 - $150,000 Generous Brands is dedicated to inspiring people to thrive through the power of vibrant nutrition through its leading brands, Bolthouse Farms, Health-Ade, and Evolution Fresh. Generous Brands partners with SAMBAZON to manufacture, distribute and sell SAMBAZON branded beverages. Bolthouse Farms is a pre-eminent provider of chilled juice, smoothies, shakes, and protein drinks . Health-Ade is the fastest growing kombucha brand, dedicated to creating bubbly beverages that boost gut health. Evolution Fresh is a premier cold-pressed juice brand with national availability. And, SAMBAZON beverages bottle the superfruit power of açaí in juice and natural energy cans. The company operates its North American business from facilities in Southern California,...
AE
Mar 08, 2026
Full time
Lead Engineer
ACCO Engineered Systems Pasadena, CA, USA
Job Description General Job Description: This position is responsible for independently delivering engineering services, from conceptual design through construction completion. Essential Duties & Responsibilities Complete project planning, coordination, and execution with some oversight Independently complete conceptual design through construction drawing development for multiple small and medium sized standard projects simultaneously Create conceptual designs certified to Building Codes, Energy Codes, and LEED standards Responsible for HVAC calculations, design and layout of equipment, duct and piping systems on assigned projects Solid understanding of applications engineering such as psychrometrics, refrigeration, acoustics, and controls systems Appropriate engagement of engineering applications and/or managers in project decisions Proactively communicate and coordinate project designs with Project Management, Construction and Service departments, Controls,...
MW
Mar 08, 2026
Full time
MPI Design Engineer
$70,304 - $75,000 yearly
McWane, Inc. Exeter, CA, USA
Company Description What We Live By...... The McWane Way is a core philosophy outlined by the founder J.R. McWane in 1920. Today It encompasses Teamwork, Excellence, Leadership, Environment, Communication, Accountability, Safety and Trust. All team members at every level are expected to know and work by these principles, values, and behaviors. Most importantly, every team member is expected to be able to answer this question, "What does this mean for me?" This is the all-important question because behavior is the best evidence of a living principle. Join the McWane team on the journey to The McWane Way. Who We Are...... McWane Inc. has a newly created division, McWane Plant and Industrial (MPI). This new division, based in Birmingham, AL, combines all Plant and Industrial Products in a single customer-focused package. We offer comprehensive solutions through an experienced team of professionals specifically focused on these two special markets. Our Mission is to be the Plant...
NB
Mar 06, 2026
Full time
Design Engineer II
Niagara Bottling, LLC Diamond Bar, CA, USA
At Niagara, we're looking for Team Members who want to be part of achieving our mission to provide our customers the highest quality most affordable bottled water. Consider applying here, if you want to: Work in an entrepreneurial and dynamic environment with a chance to make an impact. Develop lasting relationships with great people. Have the opportunity to build a satisfying career. We offer competitive compensation and benefits packages for our Team Members. Design Engineer II Design Engineer II is responsible for initial and ongoing evaluation, feasibility analyses, and optimization of Niagara's Mechanical, Electrical, and Plumbing [MEP] system designs. MEP systems include, but are not limited to: product water processing, cooling/chilled water, compressed air, HVAC, and bottling/injection molding production equipment. Detailed Description System Assessments Feasibility analyses and utility consumption modeling for expansion initiatives Evaluation and...
SC
Mar 06, 2026
Full time
Process Development Engineer
Santa Cruz Nutritionals Santa Cruz, CA, USA
We believe being healthy should not require tradeoffs. SCN BestCo is a leading innovator, developer and manufacturer of Vitamin, Mineral & Supplement (VMS), Over-the-Counter (OTC) and prebiotics/probiotics in enjoyable forms such as gummies, lozenges and chews. With over 50 years of excellence, our team leads the way in changing how consumers make healthier choices. With unique food science expertise and proprietary processes, we've pioneered many firsts. The fire in our belly to create new to the world products has guided and continues to be core to our mission of making health and wellness more enjoyable. Come join us and become a part of our winning formula! The Process Development Engineer is responsible for developing and modifying processes to scale up from Research & Development (R&D) formulation, optimizing process flow, reducing variability within the process, improving operating capabilities and helping product safety. The main objective of the role is to...
PB
Mar 05, 2026
Full time
Manufacturing Engineer Tech Req ID 17663
PABCO Building Products, LLC Sacramento, CA, USA
H.C. Muddox joined Pacific Coast Building Products in 1980 and now supplies a large distributor network with clay products that include standard face brick, thin brick, flue liners, pavers, pool coping, and structural brick. H.C. Muddox also offers custom shapes, sizes and colors in a range of products. (Manufacturing Engineer Tech ) $26 - $29/hours Depending on Qualifications and Experience WHAT THIS ROLE LOOKS LIKE: Under the supervision of the Plant Manager and coordination with the department supervisors, this position will learn and support production, veneer and maintenance. The Manufacturing Engineer Tech supports the day-to-day operations, maximizes machinery and equipment life, performance efficiency, and continuous improvement while collaborating with the plant operations. This position will develop, evaluate and improve manufacturing methods utilizing his new learn knowledge of: product design, process manufacturing, material handling methods, process...
He
Mar 04, 2026
Full time
Process Engineer
$145,000 - $175,000 yearly
Heirloom Brisbane, CA, USA
THE ROLE We are seeking a Process Engineer to join Heirloom's Plant Design Team. You will be responsible for the design, integration, and optimization of critical Balance of Plant (BoP) systems and material handling circuits that enable our carbon removal technology to operate at scale. WHAT YOU'LL DO Own the design and integration of BoP utility systems, including instrument air, process water, cooling water, and fire water. Lead the engineering of material handling systems, focusing on lime hydration, limestone processing, and solids transport. Develop and maintain PFDs, P&IDs, and heat and mass balances for utility and auxiliary systems. Oversee supplier diligence and equipment selection for pumps, compressors, heat exchangers, and solids handling hardware. Drive technical specifications and RFQs for BoP packages, ensuring alignment with overall plant performance targets. Coordinate with R&D to ensure bench/pilot scale data informs the scaling of water...
VD
Feb 26, 2026
Full time
Engineer
Vie Del Fresno, CA, USA
Vie-Del is a major producer of concentrates from grapes and other fruits, brandy, spirits, and wines. We are currently seeking talented candidates to join the Vie-Del Family. We offer a competitive salary and excellent benefits package in an employee-friendly and rewarding environment. The qualified candidate will assist the Engineering Department in fulfilling the responsibilities and achieving the objectives and goals of the Plant Engineering position. This position requires a Bachelor's degree in Mechanical Engineering or related technical discipline or five years Facilities Management. Candidate must have history of facilities development/construction activity, including supervision of related maintenance staff. The candidate must possess the ability to effectively communicate with all levels of the organization. A proficiency in Excel and Microsoft Word is crucial. Experience in (CAD) Computer Aided Design, SolidWorks and (PDF) Process Flow Diagrams is required.
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