Senior Wastewater Engineer | Long Island, NY

IMEG

5d • $142,000 - $184,000

About The Position

Senior Wastewater Engineer | Long Island, NY IMEG is hiring a Senior Wastewater Engineer in Long Island, NY, to lead wastewater treatment plant design and construction. In this role, you’ll provide technical leadership in design—guiding project direction, developing practical, code-compliant solutions, and partnering with multidisciplinary teams to deliver strong client outcomes. This position is ideal for a mid-to-senior level engineer ready to take on greater technical responsibility, mentorship, and project influence. IMEG’s water and wastewater specialists deliver full-service planning and design for water and wastewater projects, partnering with clients across the project lifecycle with a focus on performance, efficiency, and meeting evolving regulatory standards. IMEG helped initiate and support the Long Island Water Reuse Roadmap & Action Plan, aimed at catalyzing treated wastewater reuse on Long Island IMEG’s Long Island presence is backed by national scale and local depth—ranked #1 engineering firm on Long Island by Long Island Business News’ 2025 Book of Lists (ranked by number of registered PEs). Recognized engineering leader: ENR Top 500 Design Firm ranking (#48 in 2025) and top 5 engineering firm BD+C. Locations available: Long Island, NY State of New York

Requirements

• Bachelor of Science (BS) Degree in Civil, Chemical Engineering, or equivalent, required
• Professional Engineer (PE) License required
• 15 years of experience minimum required.
• Demonstrated experience in wastewater treatment plant design
• Hands-on design and construction experience required
• Strong technical judgment and collaborative approach to project delivery
• Advanced proficiency in design techniques, tools, and concepts involved in the production of technical plans and specifications
• Advanced proficiency in technical and analytical skills for civil infrastructure
• Strong training, mentoring, and leadership skills
• Ability to perform final quality control checks in their area of expertise
• Ability to sell work and develop client relationships
• Excellent communication and interpersonal skills; Ability to clearly communicate in both oral and written communication to individuals or groups
• Ability to work collaboratively in a team environment
• Attention to detail and problem-solving skills
• Eagerness to adapt to new challenges
• Ability to travel up to 25% with occasional overnight stays

Nice To Haves

• PE licensure preferred (or ability to obtain within a reasonable timeframe)
• Proficient with CADD/BIM/Revit experience a plus

Responsibilities

• Lead wastewater treatment plant design and construction, including process evaluation, sizing, layout, and performance optimization
• Provide technical leadership for municipal civil infrastructure and site design, delivering constructible, resilient solutions that meet client and regulatory requirements
• Coordinate multidisciplinary planning, design, and permitting efforts; partner with clients to define requirements and communicate technical solutions clearly
• Perform site assessments and produce engineering analyses, calculations, specifications, and technical reports
• Drive quality control through in-process design reviews and IMEG standards compliance; resolve field issues with minimal senior support
• Mentor and train engineers; lead project presentations/interviews and stay current on industry best practices and innovation

Benefits

• Other rewards may include annual bonuses and stock ownership options.
• IMEG Corp. provides a variety of benefits to employees, including health insurance coverage, an employee wellness program, life and disability insurance, a retirement savings plan, paid holidays, and paid time off (PTO).
• generous PTO, flexible schedule, and assistance with tuition reimbursement.
• employees are eligible to enroll in health, dental, vision, and life insurance on their first day of employment.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 501-1,000 employees