Principal Consultant (Water/Wastewater Engineering)

Founded in Dallas in 1974, Trinity Consultants has grown from a small air quality firm into a global environmental consulting leader with 2,800 experts worldwide. We deliver holistic expertise across natural environmental, people, and building technology environments - blending deep scientific knowledge with a culture that genuinely supports the people who do the work. Built on a foundation of transparency, empowerment, and professional growth, our team embodies integrity in every engagement. We reward creative problem-solving, entrepreneurial spirit, and mastery of technical skills which creates an environment where talent thrives and clients succeed. Whether serving clients across environmental consulting, water & ecology, built environment, or life sciences, we unify rigorous science with conscious innovation. It's a culture that nurtures collaboration, values inclusion, and drives meaningful results.

Trinity is adding a Principal Consultant (Water/Wastewater Engineering) to our Tucson team! The Principal Consultant provides expert-level regulatory, compliance, and technical support across disciplines. This role manages complex client projects, contributes to risk reduction strategies, and ensures project success through sound project management practices and client relationship skills. Our engineering team focuses on Municipal, Mining, and Water/Wastewater projects across Arizona. Additionally, this position will play a significant role in helping develop and mentor newer engineers and other technical professionals. The successful candidate will also have an opportunity to further build our market share by fostering relationships with current and future clients.

What will I be doing?

• Managing and mentoring Project Managers, Professional Engineers (PE's), Engineers in Training (EIT's), design drafters and other technical staff.


• Creating and reviewing written proposals and professional services fees.


• Writing, managing, and providing quality control reviews of technical engineering reports.


• Developing, managing, and providing quality control reviews of water and wastewater design projects. This includes water distribution systems, wastewater collection systems, pumps stations, lift stations, piping and conveyance systems and other water/wastewater system components.


• Overseeing and providing quality control reviews of hydraulic models and master plans.


• Managing and coordinating deliverables from subcontractors, vendors, and partner consultants.


• Facilitating and/or coordinating communication and the delivery of information between WestLand, our subcontractors, and our vendors with our clients.


• Building relationships with current and future clients and vendors.


• Managing projects with multiple levels of staffing, vendors, and subconsultants where required as well as oversite of more junior staff management of simple projects.


• Managing overall project delivery and risk mitigation with project managers from simple projects to senior project managers with complicated projects.

What qualifications are required for this role?

• You will have a bachelor's degree in a related engineering discipline or in a related field.


• Preference will be given to those candidates that are registered (or have the ability to register) as a Professional Engineer (PE) in the State of Arizona.


• A minimum of ten (10) years of experience as a project manager in an engineering environment with a focus on Water and Wastewater systems is required.


• Expertise in Federal and Local water/wastewater regulations and design standards.

The wage range for this position is $165,000 - $191,000 annually.

What does Trinity offer you?

• Comprehensive benefits package: 9 paid holidays, healthcare benefits, PTO, and 401k matching for full-time employees. Flexible work schedules and remote/hybrid possibilities for most roles.


• Multidisciplinary environment: Unique, creative, and challenging projects where you can develop your vision of clientele and work with industry leaders daily.


• Success-oriented environment: Two-way mentorship, financial incentives to publish work, tuition reimbursement, and a career-path structure to help you reach the next steps in your career.


• Collaborative work environment: Clear and frequent communication, shared information and ideas across teams, and a welcoming atmosphere for everyone.

Trinity is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, disability, or veteran status. We maintain a drug-free workplace and perform pre-employment background checks.

To apply, visit Trinity Water and Ecology Job Listings

Resumes submitted by a recruiting/staffing agency without current/valid vendor agreement will become property of Trinity Consultants. Any recruiting/staffing agency wishing to do business with Trinity Consultants must contact the Human Resources Department through our website. Recruiting/staffing agents may NOT contact hiring managers directly. Firms that do not honor this request will be removed from consideration.