Principal - Water/Wastewater Infrastructure
$195k - $220kApex Companies
Job Description
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 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 View email address on ziprecruiter.com or View phone number on ziprecruiter.com. 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.
- Tighe & Bond in Manchester, NH seeks a Project Engineer 1 for their One Water Team. This role involves supporting the planning, design, and construction of wastewater infrastructure projects throughout the Northeast. Candidates should possess a relevant Bachelor's degree...Water
- Tighe & Bond Inc. is seeking a Project Engineer 1 to join their One Water Team in Manchester, NH. This role involves planning, design, and construction management of wastewater infrastructure projects across the Northeast. Ideal candidates will have a Bachelor’s in Civil...Water
- Kleinfelder is seeking a Water/Wastewater Project Engineer to join its New England Water Team in Manchester, NH. The role involves contributing to water, wastewater, and stormwater infrastructure projects, providing technical design support, and collaborating with a multi...Water
- CDM Smith is seeking an engineering professional to join their Manchester team and work on complex water and wastewater infrastructure projects. This role involves developing engineering designs for treatment facilities and systems, ensuring compliance with applicable regulations...Water
$78k - $125k
...Wastewater Project Engineer- Massachusetts & New Hampshire Wright-Pierce, an award-winning, multi-discipline environmental engineering firm specializing in water, wastewater and civil infrastructure, is seeking a licensed Wastewater Project Engineer to join our Burlington...WaterH1bWork at officeLocal areaFlexible hours- ...TSU Job Description: At CDM Smith, you'll work on meaningful water and wastewater projects that directly support community health, environmental stewardship, and sustainable infrastructure. Our Manchester team is seeking a mid-level engineer ready to take ownership...WaterFull timeH1bLocal area
$138.01k - $197.16k
...Project Manager-Water/Wastewater Engineering At HDR, our employee-owners are fully engaged in creating a welcoming environment where... ...directly support public health, environmental sustainability, and infrastructure resilience. We bring together experts across disciplines to...WaterFull timeTemporary workPart timeLocal area- ...CDM Smith’s Manchester team and build your career in the water and wastewater industry alongside industry‑leading experts. You will have... ...work on some of the region’s largest and most complex water infrastructure projects, while benefiting from strong technical...WaterLocal area
$130k - $145k
Wastewater Treatment Project Manager Department: Water/Wastewater Employment Type: Full Time Location: Manchester, NH Compensation: $130,000 - $145,000... ...optimizing plant performance, and delivering impactful infrastructure projects - this is your opportunity to lead...WaterFull timePart timeWork at officeRemote workFlexible hours$91k - $129k
...where employees can thrive. Step Into Your New Role As a Water/Wastewater Project Engineer joining our New England Water Team, you will... ...to a variety of water, wastewater, and stormwater infrastructure planning, design, and construction projects. You will work...WaterLocal areaFlexible hours- ...CDM Smith's Manchester team and build your career in the water and wastewater industry alongside industry-leading experts. You will have... ...on some of the region's largest and most complex water infrastructure projects, while benefiting from strong technical mentorship...WaterFull timeH1bWork at officeLocal area
$120k
...people. Our work spans high-growth sectors like water resources, resilient land use, energy transformation, and civil infrastructure. Our commitment to excellence, across... ...? Verdantas is seeking a Senior Water/Wastewater Engineer to join any of our New Hampshire,...WaterContract workTemporary workLocal areaFlexible hours- ...Hazen and Sawyer is seeking a Senior Wastewater Engineer for our Manchester, NH... ...involved with a wide range of wastewater infrastructure projects, focusing on treatment process... ...solutions to our clients for all things water. Why Hazen and Sawyer: Founded...WaterTemporary workWork at officeLocal areaImmediate startFlexible hours
- AtkinsRéalis is looking for an experienced Principal Dams & Reservoir Engineer to join our team in Manchester. You will lead multi-disciplinary projects that shape our infrastructure and address critical water management challenges. This position offers competitive salaries...PrincipalWater
$116k - $197k
...Senior Water / Wastewater Project Manager Take Your Design Career to the Next Level Kleinfelder, a Forbes' Top Employer for Engineers... ...clients' transportation, water, energy, and other private infrastructure. As a responsive, cross-disciplinary team of bright,...WaterLocal areaFlexible hours- Tighe & Bond is seeking a Project Engineer 1 to join their One Water Team, based in Manchester, NH. The role involves supporting the design and construction of wastewater projects, engaging in technical discussions, and collaborating with project teams. Applicants should...Water
- ...collaborative Design Manager to support the management and delivery of water infrastructure projects in New England. Our design managers lead the... ...Degree in an engineering discipline with a focus on water/wastewater systems and infrastructure. Minimum 10 years engineering...WaterContract work
- ...growing demand for high‑fidelity modelling in the water industry, we have created a number of new opportunities. As a Principal CFD Modeller you will drive innovation,... ...to a broad portfolio of high‑profile infrastructure projects. Responsibilities Innovation & Capability...PrincipalWaterFlexible hours
$95k - $160k
...Wastewater Project Manager Wright-Pierce, an award-winning, multi-discipline environmental engineering firm specializing in water, wastewater and civil infrastructure, is seeking a licensed Wastewater Project Manager to join our company. Salary range is $95,000 -...WaterH1bWork at officeLocal areaFlexible hours- ...looking for an energetic and experienced Principal River Engineer to join our team within... ...cutting edge, iconic projects to our Water market clients. As a key member of our... ...transformational programmes for critical UK infrastructure, with opportunities to work on landmark...PrincipalWaterWork at officeLocal areaImmediate startOverseasFlexible hours3 days per week
- ...is seeking a Senior Quantity Surveyor in Manchester, NH, to oversee principal contractor duties on major AMP8 framework projects. The ideal candidate should have strong experience in the water/wastewater sector and a background with tier 1 contractors. This role offers...WaterRemote jobFor contractors2 days per week3 days per week
- ...Communities everywhere share the need for clean water. And as they work to meet that need,... ...solutions to all facets of the water infrastructure life cycle. We provide services related... ..., reservoirs and dams, water supply, wastewater networks and treatment, flood...WaterContract workFor contractorsFor subcontractorLive in
- AtkinsRéalis is seeking an accomplished Project Manager to join their Infrastructure Project Delivery Practice in Manchester, New Hampshire. This position involves managing project delivery for water infrastructure projects, ensuring client relationships, and overseeing...WaterFlexible hours
- A leading engineering firm is seeking a Wastewater Project Manager in Manchester, NH, to manage projects in wastewater collection and... ...You will lead assessments, design, and execution of critical infrastructure, collaborating with multidisciplinary teams. The role emphasizes...
- A leading engineering firm in Auburn, NH is seeking a Process Engineer specializing in water and wastewater treatment. This role involves planning, designing, and optimizing complex treatment facilities. The ideal candidate should have a Bachelor's degree in engineering...Water
$115k - $150k
Weston&Sampson, Inc. seeks an experienced engineer in Manchester, NH to oversee project teams on drinking water infrastructure projects. The role involves managing project scopes, budgets, and relationships while providing mentorship to junior staff. Required qualifications...Water$80.42k - $105.55k
...Project Engineer 1 , you will join our One Water Team in either our Manchester, NH,... ...ll play a key role in delivering vital infrastructure projects across the Northeast. Working... ...clients to enhance drinking water and wastewater infrastructure, ensuring reliable and sustainable...WaterSummer workLocal areaFlexible hours- ...Auburn, NH is offering a Civil or Environmental Engineering Intern position for Summer 2026. The intern will assist in infrastructure projects, including water treatment plants and hydraulic models. Candidates should be pursuing a bachelor's degree in civil or environmental...WaterSummer workInternship
$75k - $140k
...Estimator Wastewater Are you looking to join a vibrant and closely-knit team where collaboration thrives and career advancement is just... ...levels—Staff, Project, and Senior positions—focusing on water and wastewater. Ideal candidates will have a minimum of five years...WaterFull timeFor contractorsFor subcontractorWork at officeRemote work- ...looking for an entry-level Environmental, Water Resources, or Civil Engineer to join our Water... ...the design and implementation of water and wastewater treatment facilities, sewer systems, pipelines, and associated infrastructure. Operating under direct supervision, you...WaterFull timeH1bWork at officeLocal area
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal - Water/Wastewater Infrastructure. Be the first to apply!
- principal Manchester, NH
- water project manager Manchester, NH
- water resources Manchester, NH
- water wastewater Manchester, NH
- water company Manchester, NH
- water management Manchester, NH
- water quality Manchester, NH
- water truck Manchester, NH
- water quality scientist Manchester, NH
- principal network administrator


