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Salary
$126k – $187k per year
Location
In office (Fullerton)
Seniority
Senior · 12+ years exp
Visa
H-1B filings in 12 months: 6

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 2, 2026. Apex Companies scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Apex Companies is a multidisciplinary environmental consulting and engineering firm providing solutions in water management, infrastructure, health and safety, and environmental compliance. The enterprise supports commercial and public sector clients with end-to-end technical services, including site remediation, stormwater management, and regulatory advisory. Headquartered in Rockville, Maryland, it operates a nationwide network of offices across the United States.

Are you driven to grow, lead, and make a meaningful impact? At Apex, we’re building more than a consulting and engineering firm-we’re creating a place where your career accelerates, your contributions matter, and your potential is fully realized. We believe your growth is our growth, which is why we invest in your development at every stage of your career. Here, you’ll work on projects that shape communities, protect the environment, and create lasting impact, all while being empowered with the autonomy and flexibility to do your best work.

Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth. Our success is grounded in strong leadership, a collaborative culture, and a shared commitment to delivering exceptional outcomes.

As we continue to expand, we're looking for high-performing professionals who are ready to lead, collaborate, innovate, and create impact. At Apex, you help shape what's next. When we succeed together, we share in that success. All Apex positions are eligible for annual bonus opportunities, reinforcing our commitment to recognizing and rewarding meaningful contributions that drive our collective growth.

CWE, An Apex Company, is a dynamic, award-winning provider of consulting, engineering, technical, and construction management services. Clients trust CWE to provide innovative and sustainable solutions to solve complex problems involving civil infrastructure, water resources, and the environment. CWE is an integrated firm with a reputation for delivering engineering solutions that improve the quality of life in a fiscally responsible and holistic manner, consistent with our vision of Creating a better tomorrow, today®. We develop and implement real world solutions that are practical and cost-effective to create value for our clients and enhance our communities and environment.

Why Work for Us?

This is not a "job" - it is a career with a rapidly-growing organization in a dynamic industry that recognizes excellent performance and provides opportunities for growth and advancement. This is a fantastic opportunity to develop valuable engineering and technical skills under industry recognized leaders. In addition, as a firm that is leading the industry with innovative and creative approaches to solving environmental and engineering challenges, our employees leave the office each day knowing they have contributed to a positive movement that will improve our communities, environment, and the world.

This role is eligible for a $10,000 sign-on bonus, subject to the terms and conditions of the Company's sign-on bonus program.

We have an exciting opportunity for an outstanding individual to join our team as a Engineer IV  at our headquarters in Fullerton, California. Qualified individuals with at least 8+ years of professional experience are encouraged to apply.

General Characteristics

  • Independently applies extensive and diverse knowledge of principles and practices in broad areas of assignments and related fields.
  • Modifies or extends accepted theories and practices of civil engineering to complete assignments.
  • Acts in responsible charge of projects.
  • Leads tasks and projects of moderately complex scopes.
  • Develops plans, specifications, and other project documents.
  • Selects appropriate principles of engineering economics, and probability and statistics to analyze risk in a complex civil engineering problem.
  • Values and applies ethical behavior in the practice of civil engineering.
  • Ability to pay attention to detail with a high level of accuracy.
  • Demonstrates a strong work ethic.
  • Proactive approach/self-starter/takes initiative/positive attitude/team player.

Critical Tasks and Responsibilities

  • Manage workload of other engineering staff
  • Staff performance reviews
  • Meet with clients regarding work and performance of team, and regarding current and future work
  • Pursue/Acquire work with clients.
  • Write and review proposals and scopes of work
  • Negotiate work with clients
  • Prepare project concepts through final design plans, specifications, and estimates (PS&E) bid packages
  • Perform Quality Assurance and Quality Control
  • Solve design problems using engineering calculations and following general design standards
  • Prepare complete engineering reports related to civil site improvements, storm drainage, water distribution and transmission systems, pumping systems, pipelines, utilities, streets and roadways, bikeways, sanitary sewer collection systems, and water and wastewater facilities
  • Prepare project drawings/designs in AutoCAD Civil3D
  • Provide comments and markups to PS&E documents.
  • Utilize AutoCAD Civil3D to establish horizontal and vertical alignments, profiles, cross sections, and perform earthwork calculations
  • Serve on project teams under the supervision of CWE Project/Program Managers and/or Directors/Principals
  • Complete assignments on time and within budget and achieve firm’s quality objectives
  • Interact with public and private clients and stakeholders
  • Interact with multi-discipline and multi-office teams
  • Develops and reviews complete project documents for conformity and quality assurance.
  • Typically, in responsible charge of projects.
  • Keeps informed of updates to standards, regulations, and best practices.
  • Analyzes complex civil engineering projects to determine design requirements, uncertainties, and constraints.
  • Acknowledges and applies concepts of sustainability to civil engineering projects.

Required Competencies and Qualifications

  • 8+ Years of Experience in Civil Engineering or related field.
  • Bachelor’s degree in engineering from an ABET-accredited program or other Bachelor’s degree with 12+ years’ Architect-Engineering (AE) industry experience.
  • California Professional Engineer (PE) registration in Civil Engineering, or 12+ years of AE experience.
  • Ability to use AutoCAD Civil 3D software
  • Proficient in Microsoft Office software (Word, Excel, PowerPoint, Outlook, Project, etc.).
  • Ability to use ESRI ArcMap, ArcGIS Pro, ArcGIS Online, or related geospatial software
  • Proficient in PDF software, such as Bluebeam, Adobe Acrobat, etc.
  • Abilities to grasp and become proficient in new software and technologies
  • Ability to pay attention to detail with a high level of accuracy.
  • Demonstrates a strong work ethic.
  • Good interpersonal abilities for working in a team environment.
  • Excellent written and oral communication skills.
  • Ability to multi-task, prioritize, and take direction.
  • Strong analytical and problem-solving skills.
  • Ability to self-motivate and work productively without supervision.
  • Proactive approach/self-starter/takes initiative
  • Positive attitude/team player
  • Ability to kneel, climb, and lift up to 50 lbs.
  • Valid California driver’s license and insurable driving record

Desired Competencies and Qualifications

  • MS, PhD or other advanced degree(s) in related fields.
  • Envision Sustainability Professional (ENV SP)
  • Member of professional practice organization (e.g. ASCE, ACEC, APWA, etc..)
  • Involved, organizes, and/or leads outreach and service activities with community service organizations

Apex Job Title: 

Engineer IV - Sr Project Engineer

Req ID: 12148

Annual Expected Pay Range

$126,000—$187,000 USD

We believe in equality for all and celebrate the diversity and differences of our employees, customers, and communities. We do not discriminate based on gender, race or color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other applicable characteristics protected by law. Apex aims to make apexcos.com accessible to all users. If you have a disability or special need that requires accommodation to navigate our website or complete the application process, please contact [email protected] or (301) 417-0200. Likewise, feel free to reach out to us if you would like to view or discuss Apex policy related to equal employment opportunity or have any related concerns. EO/AA/VEV/Disabled Employer

TO ALL RECRUITMENT AGENCIES: Apex Companies does not accept unsolicited agency resumes. Please do not forward resumes for any of our job postings to our career’s sites, or to any employees of Apex Companies or affiliates. Apex Companies is not responsible for any fees related to unsolicited resumes.

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