Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.

Check how this applies to your own job

About the job

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.

When you join Apex Companies, you won’t just be ‘going to work’. You’ll be helping grow a longstanding business while receiving the recognition and support your commitment to professional growth deserves.

Your Responsibilities as a Senior Water/Wastewater Project Engineer:

As our Senior Water/Wastewater Project Engineer, your role will be pivotal in shaping the future of water infrastructure. You will:

Design and evaluate advanced water and wastewater treatment systems, setting new standards for efficiency and sustainability.

Lead in the creation and review of critical documents, from construction plans to comprehensive master reports.

Offer expert technical guidance, ensuring our projects and teams adhere to the highest quality standards.

Manage resources skillfully, ensuring projects across regions are delivered on time and to specification.

Collaborate with clients and regulatory agencies, navigating the complexities of permits and compliance with ease.

Take charge of construction observation and management, ensuring projects unfold smoothly from concept to completion.

What we're looking for:

Professional Engineer (PE) registration or ability to obtain in 6 months

10+ years of hands-on experience in water and wastewater treatment projects, with a deep understanding of the technical and regulatory landscapes

B.S. in Civil Engineering (or related field)

Why you'll love working for us:

Flexible Schedule

Competitive Pay

Medical, Vision, Dental, and HSA

Generous PTO

401K Plan including employer contribution

Apex Job Title: Engineer 4

Req ID: 11978

#LI-SH1

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.