Full-Time

Client Service Leader

Water/Wastewater

Updated on 8/18/2026

Apex Companies

Apex Companies

1,001-5,000 employees

National environmental consulting and engineering firm

Compensation Overview

$195k - $220k/yr

+ Annual bonus + Minimum $20,000 sign-on bonus + 401(k) match

Boston, MA, USA + 5 more

More locations: Manchester, NH, USA | Providence, RI, USA | Springfield, MA, USA | Bridgeport, CT, USA | Glastonbury, CT, USA

Hybrid

The role begins remotely, with the opportunity to establish and lead a new office in the target market.

Bachelor's, Master's

Category
Architecture & Civil Engineering (1)
Required Skills
Quality Assurance (QA)

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Requirements
  • A BS or MS degree in Civil Engineering, Environmental Engineering, or a relevant engineering discipline is required.
  • At least 15 years of experience in municipal infrastructure is required.
  • Professional Engineer registration in Massachusetts, Connecticut, or New Hampshire is preferred.
  • Demonstrated success in developing new markets, securing key municipal clients, and achieving financial growth targets is required.
  • A strong record of mentoring, team development, and leading cross-discipline project teams is required.
  • Demonstrated ability to work effectively with clients in a forward-thinking manner to drive growth and sustained performance through effective leadership is required.
  • Excellent written and verbal communication skills are required.
  • A desire to manage and mentor staff at all levels is required.
Responsibilities
  • Lead the growth of Apex’s infrastructure services within the designated local market.
  • Develop and execute a strategic plan to expand relationships with municipal, utility, and public-sector clients.
  • Leverage existing client relationships and 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.
  • Serve as a trusted advisor to municipal and utility clients by 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.
  • Oversee delivery of municipal infrastructure projects, including water and wastewater treatment, distribution and collection systems, stormwater management, transportation, and civil engineering.
  • Ensure technical excellence, quality control, and adherence to scope, schedule, and budget.
  • Provide technical leadership, mentoring, and quality assurance/quality control oversight to project teams.
  • Manage project performance, including backlog, utilization, and profitability metrics.
  • 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.
Desired Qualifications
  • Professional Engineer registration in Massachusetts, Connecticut, or New Hampshire.

Apex Companies provides environmental consulting and engineering services to public agencies and private clients across all 50 states. Its offerings include water resources management, environmental remediation, health and safety, compliance assurance, ESG advisory, and infrastructure engineering, delivering work from site assessments to managing complex projects. A key differentiator is the breadth of services across environmental, health and safety, and ESG, plus its ARTEMIS data-management platform that organizes environmental information for risk mitigation and lending. The company aims to help clients manage environmental risk, achieve regulatory compliance, and efficiently complete projects while expanding its national footprint.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Rockville, Maryland

Founded

1988

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Simplify Jobs

Simplify's Take

What believers are saying

  • Apex earned Zweig’s 2026 Hot Firm No. 28 ranking, signaling strong growth momentum.
  • Tully and CWE expanded Apex’s stormwater, civil engineering, and California footprint in 2026.
  • March 2026 and February 2026 acquisitions broadened Apex’s municipal and private-market project pipeline.

What critics are saying

  • Private equity ownership pressures Apex to chase integrations and leverage before 2027.
  • Apex’s acquisition spree risks cultural friction and margin dilution across California, Florida, and Intermountain West.
  • A single failed integration or buyer slowdown could break Apex’s roll-up story and stall growth.

What makes Apex Companies unique

  • Apex combines water, environmental, and infrastructure services under one national platform.
  • Morgan Stanley Capital Partners backs Apex, enabling acquisitions like Tully and CWE in 2026.
  • Apex’s ARTEMIS data tools and stormwater lifecycle expertise deepen client lock-in.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

Paid Vacation

Paid Sick Leave

Relocation Assistance

Growth & Insights and Company News

Headcount

6 month growth

17%

1 year growth

17%

2 year growth

17%
Apex Companies
Mar 18th, 2026
Apex Companies Acquires CWE

Apex Companies announced the acquisition of CWE, an award-winning civil infrastructure, water resources, and environmental engineering services firm with multiple offices in California.

Associated Press
Feb 17th, 2026
Apex Companies Acquires Tully, Inc.

Adds to Core Stormwater Strength and Enhances Ability to Deliver the Full Stormwater Lifecycle in Northern California

EIN News
Jan 5th, 2026
Raincatcher Advises AquaWorks DBO on Its Acquisition by Apex Companies

Raincatcher, a national mergers and acquisitions advisory firm serving small to mid-size businesses, served as the exclusive sell-side advisor to AquaWorks DBO,

EIN News
Nov 3rd, 2025
Apex Companies Acquires Forsgren Associates, Inc.

Bolsters Engineering Depth and Extends Operational Presence in Intermountain West

EIN News
Nov 26th, 2024
Apex Acquires Weiler Engineering in Florida

Apex Companies, LLC has acquired Weiler Engineering Corporation, a Florida-based engineering firm. This acquisition enhances Apex's engineering capabilities and strengthens its presence in Florida. Weiler Engineering, with over 45 professionals, brings expertise in civil, structural, and utilities engineering. This move follows Apex's recent acquisitions of Johnson Engineering and Water Science Associates, further expanding its services in the municipal and private markets.