Senior Principal Engineer

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 Senior Principal Engineer Manager to be based in Vancouver, 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 SW and Eastern Washington with anticipated collaboration with our other local regional offices in Seattle, Portland, Eugene, Bend, and Boise. Based in Vancouver, WA, 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.

Primary Job 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, and successful project delivery within schedule and budget.
• Contribute to the successful pursuit and capture of more than $2 million in annual business development across Washington and Oregon, including support to client engagements, proposal preparation, interviews, and marketing effort alignment to strategic growth initiatives.
• Lead business development efforts for infrastructure projects with southwest Washington, Eastern Washington, and with other agencies throughout northwest for which you have relationships.
• Develop and maintain strong client relationships while identifying new project opportunities and expanding existing accounts.
• Serve as Project Manager and/or Principal-in-Charge for complex infrastructure engineering projects from planning through construction.
• Oversee project scope, schedule, budget, quality, and client satisfaction to ensure successful project execution within approved scopes and budgets.
• Provide technical leadership for roadway, highway, intersection, bridge, multimodal, and corridor improvement projects.
• Coordinate multidisciplinary teams, including roadway, drainage, utilities, structures, traffic, and environmental disciplines.
• Effectively manage multiple assignments and priorities while collaborating with the Principal-in-Charge and other senior leadership.
• Prepare and review technical reports, engineering studies, design documents, and project deliverables.
• Mentor, coach, and develop junior engineers and project managers, fostering technical growth and leadership within the team.
• Represent the firm at client meetings, industry events, and professional organizations to strengthen market presence and support continued growth.
• Promote a collaborative, client-focused culture while ensuring projects are delivered safely, on schedule, and within budget.

Required Qualifications:

• Bachelor's degree in Civil Engineering.
• 15+ years of progressive experience managing transportation projects for WSDOT and/or local agencies in Washington along with similar experience in Oregon.
• Professional Engineer (PE) license in both Washington and Oregon, or the ability to obtain both within six months of hire.
• Demonstrated experience leading multidisciplinary transportation design projects from pursuit through construction while keeping projects within scoped schedules and budgets.
• Strong knowledge of WSDOT Design Manual, AASHTO, MUTCD, and Washington State and local agency standards.
• Experience with project management, budgeting, scheduling, and client management.
• Proficiency with Microsoft Office and AutoCAD Civil 3D.
• Excellent verbal, written, and presentation skills.
• Proven business development and client relationship experience.

Preferred Qualifications:

• Experience with MicroStation/OpenRoads Designer and 3D roadway modeling.
• Existing relationships with WSDOT, Clark County, City of Vancouver, Port of Vancouver, and other regional transportation agencies across the northwest.
• Experience managing alternative delivery projects and multidisciplinary consultant teams.

AIP (Language here):

Apex Historic & Current Project Delivery List:

• Vancouver Waterfront Development Project (City of Vancouver)
• Heights District Master Plan & Design Support (City of Vancouver)
  • Tower Mall Loop Roads Project – Phase 1
  • Mill Plain & Macarthur Signalized Intersection Project
  • Mill Plain & Devine Signalized Intersection
  • MacArthur & Lieser Roundabout
  • Tower Mall Civic Plaza Project
• NE 18th Street: NE 97th to NE 105th Corridor Project
• NE 137th Avenue Corridor Completion Project (City of Vancouver)
• SR 503 & SR502 Signalized Intersection and Trail Improvements (City of Battle Ground)
• SR503 & Onsdorff Roundabout Intersection Project (City of Battle Ground)
• Breeze Creek Corridor Improvement Project (City of La Center)
• 32nd Street Corridor Safety Improvement Project (City of Washougal)
• Lake and Everette Roundabout Intersection Project (City of Camas)
• Everett Street Corridor Improvement Project (City of Camas)
• US12 & Clinton Interchange (Port and City of Walla Walla)
• Broadmoor Development Infrastructure Improvement Project (City of Pasco)
• Regulatory Sign and Guardrail Safety Improvements Project (Skamania County

Why you'll love working for us:

• 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

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Annual Expected Pay Range

$150,000—$200,000 USD

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