Water Treatment Process Engineer

apexcompanies

Remote

Posted Jan 28, 2026

Full-time
Remote
071 Northeast

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 expand, we're looking for high-performing professionals who are ready to lead, collaborate, innovate, and create impact. At Apex, you help shape what's next. When we succeed together, we share in that success. All Apex positions are eligible for annual bonus opportunities, reinforcing our commitment to recognizing and rewarding meaningful contributions that drive our collective growth.

This role is eligible for a $10,000 sign-on bonus, subject to the terms and conditions of the Company's sign-on bonus program.

Our Northeast Division is a well-respected and award-winning group where career development, training, and mentoring co-exist with diverse civil, environmental, water resources, and traffic/transportation projects in a fast-paced and rewarding work environment. 

We are hiring a detail-oriented Drinking Water Treatment Process Engineer to support our water projects in the Northeast. This position is remote and the individual can be based in any US city but must be willing to travel to our offices or client sites in New England a minimum of once a month.

The selected candidate will provide design and engineering support for a variety of water supply and treatment projects, including new groundwater and surface water treatment plants, pump/booster stations, and upgrades to existing facilities. They will become involved in every part of the process from initial project conceptualization and planning to facility startups and optimization.

Primary Responsibilities:

Prepare technical memoranda, reports, calculations, correspondences, designs, drawings, specifications, permit applications, quantity takeoffs, and cost estimates on less complex projects or discrete tasks on more complex projects under the direct supervision of senior staff.
Assist the Project Manager and other senior staff in complying with assigned project schedules and budgets on less complex projects or discrete tasks on more complex projects by actively reporting on project progress and by identifying additional work outside the contractual Scope of Work.
Work with subconsultants under the direction of the Senior Project Engineer or Project Manager.
May serve as Lead Designer on less complex projects or discrete tasks on more complex projects to produce a complete and coordinated project by meeting and effectively communicating with the project team.
Review calculations, design assumptions, and concepts within discipline to assure quality control.
Provide technical input into proposals on less complex projects, or discrete tasks on more complex projects by developing scope of work, budgets, and schedules by relying on historical information or experience.
Assist in the preparation of technical presentations as well as participate in client meetings and/or technical presentations.
Work effectively and efficiently within established hourly budgets and monitor self-performance.
Develop expertise in pertinent local, state, and federal regulations.
Develop and maintain positive relationships with clients on technical issues by effectively communicating on a frequent and regular basis as directed by the Project Manager.
Lead fieldwork such as reviewing existing facility conditions, conducting laboratory/sampling work, evaluating performance of existing infrastructure, and observing construction and startup activities.
Assist with construction administration by tracking and reviewing submittals, preparing meeting agendas and minutes, reviewing, and compiling daily and weekly construction reports, and tracking construction schedules. Provide updates to a Senior Project Engineer and/or Project Manager.
Develop and maintain positive working relationships with staff and provide on-the-job training and mentoring for entry-level engineers and interns.
Demonstrate advanced skill and proficiency in MS Office, AutoCAD, ArcGIS, and other associated computer-based technical software specific to the discipline.
Develop increasingly effective writing and presentation skills and present data that supports technical decisions and the rationale for making them.

What We're Looking For:

A Bachelor's Degree in Civil or Environmental Engineering or a related engineering discipline
3+ years of water treatment design experience
Engineer-in-Training (EIT), PE License or actively pursuing PE registration in a State(s) where Apex does work or ability to obtain same by reciprocity
Valid US Driver's license and clean driving record
Ability to effectively communicate/interact within project teams and with clients
Ability to direct activities of less experienced staff
Excellent written and oral communication skills
CAD proficiency and experience in technical report writing is ideal
Experience with 3D drafting/BIM products, such as Plant 3D, Revit, or Navisworks is a plus
Prior experience working in engineering consulting is strongly preferred

#LI-JS1

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: Engineer 3

Req ID: 11135

Annual Expected Pay Range

$88,000—$102,000 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.