USD 150000-200000/yr

Sr Principal Engineer

United StatesUnited States·Walla Walla,Vancouversenior
OtherPrincipal EngineerArea Manager
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Quick Summary

Key Responsibilities

Serve as the project manager with a delivery portfolio of multidisciplinary infrastructure projects with cumulative annual project totals exceeding $3 million, ensuring technical excellence, quality,

Requirements Summary

Bachelor's degree in Civil Engineering. 15+ years of progressive experience managing infrastructure projects for WSDOT and/or local agencies in Washington along with similar experience in Oregon.

Technical Tools
OtherPrincipal EngineerArea Manager

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.

 

This role offers eligibility for equity awards, aligning employee contributions with the Company's continued growth and performance. Additionally, this role is eligible for a $20,000 sign-on bonus, subject to the terms and conditions of the Company's sign-on bonus program. 

Apex is hiring a Sr Principal Engineer to be based in Richland or Walla Walla, WA.   

This position will play a critical role in growing our Apex local presence and delivering multidiscipline projects throughout the state of Washington with our well-established engineering teams.  This position will have a focused emphasis with state and local agencies in Eastern Washington with anticipated collaboration with our other local regional offices in Issaquah, Vancouver, Wenatchee, Walla Walla, Richland, and Boise. This individual will collaborate with our staff to lead business development strategies and support successful delivery of multidisciplinary engineering teams across our existing Washington State offices. 

Our Apex offices have a significant historical presence within the communities we serve, averaging more than 20 years of local relationships with our agency and private development clients. You will be partnering with our local staff to leverage both your current and our Apex existing clients’ histories to support both marketing and project delivery goals while providing you well established turnkey relationships in support of your efforts.   

Typical projects include major roadway corridors, signalized intersections, roundabouts, bridges, multimodal facilities, ADA improvements, complete streets, and other multidisciplinary infrastructure improvements. These complex projects often involve state and federal funding to deliver roadway design, stormwater system design, utility coordination and design, traffic analysis and design, structure design, and construction management. 

In addition to leading the infrastructure practice, this individual will also serve as a senior level engineering and project management resource to support Apex staff growth initiatives through implementation of industry best practices in partnership with Apex Regional Commercial Leadership (RCL) marketing team and the company wide Project Management Office (PMO) team.    You will play a key role in managing client relationships, actively participating in the seller-doer model by developing new business opportunities, expanding existing client relationships, and mentoring the next generation of project managers and engineers to successfully deliver projects. 

Responsibilities

~2 min read
  • →Company-subsidized medical and dental.
  • →Company-paid life, short, and long-term disability.
  • →401k match, tuition assistance, and more.
  • →Cross-training and the ability to work on a variety of projects.
  • →Performance-based bonuses or other incentives.
  • →Working with the best and brightest in the industry.
  • →2,000+ employee national firm with 70+ locations across the US.

 

Apex Job Title: Engineer 7 - Sr Principal Engineer

Req ID: 12039

 

#LI-SH1

Annual Expected Pay Range
$150,000—$200,000 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 Talent@apexcos.com 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.

Location & Eligibility

Where is the job
Orange, United States
On-site at the office
Who can apply
US

Listing Details

Posted
September 2, 2026
First seen
September 2, 2026
Last seen
October 1, 2026

Posting Health

Days active
29
Repost count
0
Trust Level
42%
Scored at
October 2, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
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Sr Principal Engineer USD 150000-200000