Client Service Leader

Seattle, WAPosted Today

Role Overview

Apexcompanies is hiring a principal-level Client Service Leader. This is a contract role in Seattle. posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.

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Job description

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 grow, we’re focused on building a team of high-performing professionals who are ready to lead, collaborate, and push what’s possible. At Apex, you don’t just join a company, you help shape what comes next.

Apex is expanding its Environmental Practice and seeking a Client Service Leader to build and grow our environmental portfolio of engineering, remediation, investigation, due diligence, hazardous building materials, and supporting our infrastructure engineering natural resources projects Western Washington.

This is a strategic growth role for a senior, client-facing professional with a strong network of municipal and/or private clients and an active book of business. The successful candidate will lead business development and project delivery for projects throughout the Pacific Northwest, supported by Apex’s national resources and multidisciplinary teams.

If you are an entrepreneurial leader with a track record of building markets, winning work, and delivering impactful projects, we invite you to join Apex and help shape the next chapter of our environmental practice growth.

We are offering a sign-on bonus as well as relocation for the right candidate.

Key Responsibilities:

Market Growth & Leadership

Lead the growth of Apex’s environmental services within the Pacific Northwest market.
Develop and execute a strategic plan to expand relationships with municipal, utility, public and private sector clients.
Leverage existing client relationships and your market insight to establish Apex as a trusted regional partner.
Collaborate with Divisional and Regional Leadership to align local efforts with Apex’s broader environmental strategy.

Client Development & Relationship Management

Serve as a trusted advisor to municipal, utility and private clients, understanding their priorities and funding mechanisms.
Identify and pursue new project opportunities, lead proposal development, and manage interview and negotiation processes.
Drive cross-selling of Apex’s complementary infrastructure (civil, transportation, structural) natural resource, hazardous building materials, and safety compliance services.
Represent Apex at professional associations, technical committees, and industry conferences.

Project Delivery & Fiscal Oversight

Oversee delivery of environmental projects including due diligence, site investigation, site remediation, stormwater management, and hazardous waste management.
Ensure technical excellence, quality control, and adherence to scope, schedule, and budget.
Provide technical leadership, mentoring, and QA/QC oversight to project teams.
Manage project performance, including backlog, utilization, and profitability metrics.

Team Building & Mentorship

Recruit, mentor, and develop engineers, project managers, and technical staff to grow Apex’s local presence.
Foster a collaborative, high-performance culture focused on client satisfaction and technical excellence.

What we're looking for:

BS or MS Degree in Civil or Environmental Engineering or relevant discipline
15+ years of experience in municipal infrastructure
Registered Professional Engineer preferred in WA, OR or ID
Demonstrated success in developing new markets, securing key municipal clients, and achieving financial growth targets
Strong record of mentoring, team development, and leading cross-discipline project teams
Demonstrated ability to work effectively with clients in a forward-thinking manner to drive growth and sustained performance through effective leadership
Excellent written and verbal communication skills
Desire to manage and mentor all levels of staff

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.

About Apexcompanies

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Frequently Asked Questions

How do I apply for the Client Service Leader position at Apexcompanies?

Use the Apply button above to submit your application directly to Apexcompanies. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Client Service Leader position at Apexcompanies located?

This position is based in Seattle. Apexcompanies has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Client Service Leader at Apexcompanies earn?

Apexcompanies has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Client Service Leader role at Apexcompanies posted?

This role was posted on July 9, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.