Careers
SENIOR ENVIRONMENTAL ENGINEER
Posted: 01/06/2026
Job Description:
KEY Environmental, Inc. is an established and innovative environmental consulting firm specializing in the investigation, remediation, and redevelopment of environmentally challenged properties across the United States. We offer a collaborative, team-oriented work culture where professionals solve technically complex challenges and share in collective success.
We have an immediate opportunity for a full-time Senior Environmental Engineer in our Pittsburgh (Carnegie), PA office. This position is well-suited for an experienced engineer who brings strong technical depth in remediation and water and wastewater treatment and is ready to play a meaningful role in project execution, client interaction, and technical leadership.
At KEY, our people are our most valuable resource. Engineers in this role work closely with multidisciplinary teams across our offices in Pennsylvania, New Jersey, and Maine, supporting clients nationwide.
Responsibilities:
Lead and support the design of groundwater treatment and remediation systems, including process design, hydraulic analysis, and selection and layout of equipment, piping, and instrumentation;
Provide technical expertise for the operation, optimization, and troubleshooting of existing groundwater treatment systems and remediation infrastructure;
Support PFAS treatment projects, including sampling approaches, treatment evaluation, and regulatory considerations;
Interface with state and federal regulatory agencies, including preparation and support of permit applications and compliance documentation;
Prepare and review technical reports, engineering calculations, and design documents;
Support project planning, scheduling, and budget management, with increasing responsibility as appropriate;
Serve as a technical resource and mentor to junior engineers and staff; and
Participate in business development activities, including proposal preparation and client support
Requirements:
The ideal candidate will be able to demonstrate experience as an environmental engineer and a project manager, and will have the following minimum qualifications:
Bachelor’s degree in Environmental Engineering (chemistry focus preferred)
7+ years of professional experience in Environmental Engineering with a strong emphasis on groundwater treatment, remediation, or process engineering;
Demonstrated experience with
Groundwater treatment processes and remediation systems
Hydraulic analysis and treatment system design
Piping and instrumentation diagrams (P&IDs) and equipment selection/layout
Remediation of environmentally impacted Sites
Experience working under state and federal environmental regulatory programs
Superior written and verbal communication skills, with the ability to communicate technical concepts clearly to clients, regulators, and project teams
Proven problem-solving and troubleshooting abilities
OSHA 40-hour HAZWOPER training preferred
Valid driver’s license
KEY offers an excellent compensation package, including matching 401(k), profit sharing, discretionary bonuses, tuition assistance, and medical, disability, life, vision, and dental insurance, as well as flexible work hours/location.
Key Environmental, Inc. was selected as one of the Pittsburgh Post-Gazette’s Top Work Places for 2025, as voted on by its employees. Join our team to find out why. Interested candidates should submit resumes via our website or via e-mail to careers@keyenvir.com.