Principal - Water/Wastewater Infrastructure

Are you highly motivated, hard-working, and seeking to join a growth-focused consulting & engineering firm? Are you looking for a company that will invest in your development and grow your professional skills? If so, consider a career with Apex!

Powered by record sales, extraordinary client retention, strategic acquisitions, and an entrepreneurial spirit, Apex Companies is one of the fastest growing engineering and environmental consulting firms in the US. We were recently recognized by the Zweig Group as one of the fastest growing firms in the AEC industry. We take pride in providing our clients with exceptional service and have earned numerous awards for project excellence. We continue to grow, and we want you to grow with us.

Apex is expanding our Infrastructure Practice and seeking a Principal-level leader to build and grow our Water/Wastewater business in one of our target Northeast markets: Springfield or Worcester, Massachusetts; Manchester, New Hampshire; or Southwest Connecticut.

This role will begin as a remote position with the intent to establish a local office in one of the target markets. Once the office is opened, the position will transition to a hybrid work arrangement.

This is a strategic growth role for a senior, client-facing professional with a strong municipal network and an active book of business. The successful candidate will lead business development and project delivery for municipal water, wastewater, and stormwater infrastructure projects in their local geography, 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 infrastructure projects, we invite you to join Apex and help shape the next chapter of our Infrastructure 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 water, wastewater, and stormwater services within your designated local market.
• Develop and execute a strategic plan to expand relationships with municipal, utility, and public-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 infrastructure strategy.

Client Development & Relationship Management

• Serve as a trusted advisor to municipal and utility clients, understanding their infrastructure 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 environmental, construction, and compliance services.
• Represent Apex at professional associations, technical committees, and industry conferences.

Project Delivery & Fiscal Oversight

• Oversee delivery of municipal infrastructure projects including water and wastewater treatment, distribution/collection systems, and stormwater 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.
• Participate in Apex’s Principal Leadership group, contributing to strategic planning, market development, and talent initiatives.

What we're looking for:

• BS or MS Degree in Civil or Environmental Engineering or relevant engineering discipline
• 15+ years of experience in municipal water, wastewater, or stormwater infrastructure
• Registered Professional Engineer preferred in MA, CT, or NH
• Proven background in the design and management of water and wastewater treatment, distribution, collection, and conveyance systems
• 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

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: Principal

Req ID: 11575

Annual Expected Pay Range$195,000—$220,000 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

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