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Assistant Project Engineer Jobs in Orange, CA (NOW HIRING)

The role bridges the technical and execution gap between the Project Manager and the engineering disciplines and often functions as an Assistant Project Manager with a strong engineering foundation.

ASSISTANT PROJECT MANAGER/ PROJECT ENGINEER SASCO is one of the largest privately held electrical and data contractors in the nation. At SASCO, you can be part of a dynamic team that includes the ...

ASSISTANT PROJECT MANAGER/ PROJECT ENGINEER SASCO is one of the largest privately held electrical and data contractors in the nation. At SASCO, you can be part of a dynamic team that includes the ...

ASSISTANT PROJECT MANAGER/ PROJECT ENGINEER SASCO is one of the largest privately held electrical and data contractors in the nation. At SASCO, you can be part of a dynamic team that includes the ...

They are currently seeking a detail-oriented and motivated Senior Project Engineer / Assistant Project Manager with a strong background in supporting commercial Tenant Improvement projects and or ...

Showing results 41-60

Assistant Project Engineer information

See Orange, CA salary details

$42.7K

$88.9K

$130.3K

How much do assistant project engineer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for assistant project engineer in Orange, CA is $88,947.00, according to ZipRecruiter salary data. Most workers in this role earn between $71,000.00 and $107,900.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an assistant project engineer?

To thrive as an Assistant Project Engineer, you need a strong foundation in engineering principles, problem-solving abilities, and typically a bachelor's degree in engineering or a related field. Familiarity with project management software, CAD tools, and industry-specific standards or certifications like EIT (Engineer in Training) is often required. Strong organizational skills, teamwork, and effective communication help you coordinate with diverse stakeholders and manage project tasks efficiently. These skills and qualifications are crucial for ensuring projects are delivered on time, within budget, and to the required quality standards.

What are some common challenges faced by assistant project engineers, and how can they effectively manage them?

Assistant Project Engineers often encounter challenges such as balancing multiple project deadlines, coordinating with diverse teams, and adapting to shifting project requirements. Effective time management, proactive communication with team members, and a willingness to learn from senior engineers can help address these obstacles. Building strong organizational skills and staying updated on project management tools are also crucial for success in this role.

What is the difference between Assistant Project Engineer vs Project Engineer?

AspectAssistant Project EngineerProject Engineer
CredentialsBachelor's degree in engineering or related field; some certificationsBachelor's degree; often more experience and certifications
Work EnvironmentSupports project management team, assists with planning and coordinationLeads project phases, manages teams, and oversees execution
Employer & Industry UsageCommon entry-level role in construction, civil, or mechanical industriesMid-level role with greater responsibility in similar industries

The main difference is that the Assistant Project Engineer supports and assists the Project Engineer, focusing on coordination and administrative tasks, while the Project Engineer takes on more responsibility for planning, execution, and managing project teams. The Assistant Project Engineer is typically an entry-level position, whereas the Project Engineer has more experience and authority in project management.

What is an assistant project engineer?

An assistant project engineer supports project managers and senior engineers in planning, coordinating, and executing engineering projects. They often handle tasks such as preparing reports, managing schedules, and ensuring compliance with safety and quality standards, typically requiring technical knowledge and organizational skills. This role serves as a stepping stone to more senior engineering positions within construction, manufacturing, or infrastructure projects.

What are the most commonly searched types of Project Engineer jobs in Orange, CA?

The most popular types of Project Engineer jobs in Orange, CA are:

What are popular job titles related to Assistant Project Engineer jobs in Orange, CA?

For Assistant Project Engineer jobs in Orange, CA, the most frequently searched job titles are:

What job categories do people searching Assistant Project Engineer jobs in Orange, CA look for?

The top searched job categories for Assistant Project Engineer jobs in Orange, CA are:

What cities near Orange, CA are hiring for Assistant Project Engineer jobs?

Cities near Orange, CA with the most Assistant Project Engineer job openings:

Infographic showing various Assistant Project Engineer job openings in Orange, CA as of August 2026, with employment types broken down into 92% Full Time, 5% Part Time, and 3% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $88,947 per year, or $42.8 per hour.

Project Engineer

Worley

Long Beach, CA • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 5 days ago


Worley rating

8.0

Company rating: 8.0 out of 10

Based on 31 frontline employees who took The Breakroom Quiz

207th of 451 rated engineering


Job description

Building on our past. Ready for the future
Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.
Right now, we're bridging two worlds as we accelerate to more sustainable energy sources, while helping our customers provide the energy, chemicals and resources that society needs now.
We partner with our customers to deliver projects and create value over the life of their portfolio of assets. We solve complex problems by finding integrated data-centric solutions from the first stages of consulting and engineering to installation and commissioning, to the last stages of decommissioning and remediation. Join us and help drive innovation and sustainability in our projects.
The Project Engineer - Chemicals & Fuels typically manages multiple small projects, a single medium project, or a defined portion of a large or mega project supporting chemicals, fuels, refining, and petrochemical facilities. This role is primarily focused on brownfield and operating-facility projects, including revamps, debottlenecking, regulatory-driven capital work, and reliability or operability improvements.
The Project Engineer works with multi-disciplinary and multi-location teams to develop and deliver technically sound, safe, and executable solutions aligned with customer objectives, regulatory requirements, and Worley standards.
Purpose:
The Project Engineer - Chemicals & Fuels is responsible for coordinating engineering execution across scope, schedule, cost, quality, and safety for assigned projects. The role bridges the technical and execution gap between the Project Manager and the engineering disciplines and often functions as an Assistant Project Manager with a strong engineering foundation.
This position ensures that engineering work is planned, executed, and delivered in accordance with customer contracts, operating-facility requirements, regulatory obligations, and Worley policies, procedures, systems, and tools. The Project Engineer provides day-to-day technical leadership, supports execution decision-making, and ensures engineering deliverables are fit-for-purpose for construction, commissioning, and operations.
Responsibilities:
Decision Making
  • Makes independent decisions and sets priorities related to complex technical and execution matters within established guidelines.
  • Evaluates cost, schedule, safety, constructability, and operability impacts when resolving technical or execution challenges.
  • Supports risk-based decision-making appropriate for operating facilities and outage-driven work.

Supervision Received
  • Operates with minimal supervision, initiating coordination and technical guidance as needed.
  • Work is assigned in terms of broad objectives and reviewed for policy compliance, technical soundness, and overall effectiveness.
  • Interfaces with other Worley departments to ensure alignment and coordination.

Supervision Authority
  • Assigns work and provides technical direction to engineers and designers assigned to projects.
  • Reviews engineering deliverables for technical accuracy, adequacy, and compliance with Basis of Design and applicable codes.

Leadership
  • Defines and assembles multi-disciplinary, multi-office teams to deliver Chemicals & Fuels project scope.
  • Leads engineering execution for brownfield and operating-facility projects.
  • Establishes clear objectives related to scope, schedule, productivity, quality, and budget.
  • Monitors performance, addresses gaps, and drives timely resolution of issues.
  • Implements communication tools and routines to keep project teams aligned on status, risks, and key performance indicators.
  • Builds alignment and support for recommendations through clear, persuasive communication.

Financial Acumen
  • Applies in-depth knowledge of customer contracts to engineering execution and change management.
  • Understands project cost build-up, gross margin, and cost drivers specific to Chemicals & Fuels projects.
  • Tracks engineering quantities, progress, and productivity.
  • Monitors cost and schedule performance and forecasts trends using analytical judgment.
  • Ensures change control processes are understood, applied, and documented.
  • Recognizes the cost impact of constructability, outage windows, and late engineering changes.

Execution Planning & Performance
  • Translates contract and regulatory requirements into a clear Worley engineering scope of services and deliverables.
  • Develops and supports engineering schedules and resource plans aligned with project and construction needs.
  • Manages engineering execution, coordination, and progress tracking.
  • Leads regular reviews of engineering status, risks, and constraints.
  • Develops and drives action plans to resolve technical, execution, or interface issues.
  • Demonstrates experience executing multi-office workshare models.
  • Promotes Value Creation and Sustainable Solutions in project delivery.
  • Supports construction, pre-commissioning, commissioning, and startup activities as required for operating facilities.

Customer & Stakeholder Management
  • Understands customer business drivers, operating priorities, and key performance indicators.
  • Interfaces with customer engineering, operations, maintenance, and reliability stakeholders.
  • Manages relationships with customer representatives in accordance with established communication protocols.
  • Coordinates with vendors and suppliers, communicating technical and execution requirements.
  • Builds trust through transparent communication of progress, risks, and issues.
  • Proactively addresses technical coordination challenges with customers and stakeholders.

Risk & Opportunity Management
  • Identifies project risks and opportunities throughout the project lifecycle.
  • Develops and implements mitigation, contingency, and resolution plans appropriate for operating facilities.
  • Maintains a current and actively managed project risk register.
  • Uses risk register inputs to support contingency planning and forecasting.
  • Follows Worley risk management procedures and governance.

What you will bring
Technical & Industry Experience
  • Strong understanding of engineering and knowledge systems, processes, tools, and workflows.
  • Demonstrated experience in Chemicals, Fuels, refining, petrochemical, or related industrial facilities.
  • Proven ability to execute brownfield and operating - facility projects.
  • Working knowledge of EPC project delivery, including engineering, procurement, and construction interfaces.
  • Exposure to procurement, subcontracting, and construction support activities.
  • Experience participating in HAZOP, constructability, operability, and maintainability reviews.
  • Strong understanding of process safety, Safety by Design, and regulatory compliance.
  • Ability to act as the technical interface with customers and internal stakeholders.
  • High attention to detail and strong organizational skills.

Tools & Systems
  • Proficient in Microsoft Outlook, Word, Excel, Teams, and PowerPoint.
  • Able to organize and retain information in accordance with prescribed formats and policies.

Communication & Collaboration
  • Effectively communicates project requirements, expectations, and status.
  • Takes a leadership role in preparing and presenting proposals and reports.
  • Creates an environment of open communication and collaboration.
  • Resolves technical and interpersonal issues within the project team.

Education - Qualifications, Accreditation, Training:
Required:
  • University degree

Preferred:
  • At least 8 plus years in petrochemical and refining with project design, execution, construction.
  • Oil and gas industry experience preferred.

Additional Information:
  • This role is in California.
  • Salary Hourly Range $114,961-$169.060
  • Benefits: eligible for PTO, 401k, medical, vision, dental, etc.

Los Angeles
We will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance."
Moving forward together
We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation.
We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.
And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology.
Whatever your ambition, there's a path for you here. And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.
We're committed to building a diverse, inclusive and respectful workplace where everyone feels they belong, can bring themselves, and are heard. We provide equal employment opportunities to all qualified applicants and employees without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law.
Our policy is to conduct background checks for all candidates who accept an offer of employment with us.
Please note: No agency representation or submissions will be recognized for this vacancy.

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