Principal, Client Service Leader

Apex Companies, LLC

. Lead the growth of Apex’s infrastructure services within the designated local market .

Posted 10/5/2026full-timeManchester • New Hampshire • United StatesSenior💰 $195,000 - $220,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in municipal infrastructure project management, including water and wastewater treatment, while fostering client relationships and leading cross-discipline teams to achieve financial growth and technical excellence.

Highest-signal resume keywords

Municipal Infrastructure ManagementProject LeadershipClient Relationship DevelopmentMentoring and Team DevelopmentStrategic Planning

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Civil EngineeringEnvironmental EngineeringProject ManagementQuality Assurance/Quality ControlFinancial Growth Target AchievementWater Treatment SystemsWastewater Treatment SystemsStormwater ManagementTransportation EngineeringCivil Engineering Design

Soft Skills

Excellent Communication SkillsCollaborative LeadershipClient Satisfaction FocusMentoring AbilityTeam Development

Certifications & Qualifications

Registered Professional Engineer

Industry Keywords

Infrastructure ServicesPublic-Sector ClientsUtility ClientsProposal DevelopmentTechnical LeadershipCross-Selling ServicesProfessional AssociationsTechnical CommitteesMarket InsightProject Performance Management

About the role

Key responsibilities & impact

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
Identify and pursue new project opportunities, lead proposal development, and manage interview and negotiation processes
Drive cross-selling of Apex’s environmental, construction, and compliance services
Represent Apex at professional associations, technical committees, and industry conferences
Oversee municipal infrastructure projects involving water and wastewater treatment, distribution/collection systems, stormwater management, transportation, or civil engineering
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
Recruit, mentor, and develop engineers, project managers, and technical staff
Foster a collaborative, high-performance culture focused on client satisfaction and technical excellence

Requirements

What you’ll need

BS or MS Degree in Civil or Environmental Engineering or relevant engineering discipline
15+ years of experience in municipal infrastructure
Registered Professional Engineer preferred in NH
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
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

Benefits

Comp & perks

Minimum $20,000 sign-on bonus
Annual bonus opportunities
Company-subsidized medical and dental
Company-paid life, short-term, and long-term disability insurance
401(k) match
Tuition assistance
Cross-training and ability to work on a variety of projects
Performance-based bonuses or other incentives
Autonomy and flexibility to do your best work