Senior Environmental Engineer

HDR•Denver, CO

72d

About The Position

The Senior Environmental Engineer serves as a technical leader and project manager for complex environmental remediation projects involving contaminated soil, groundwater, sediment, bedrock, mining sites, and industrial facilities. The role leads remedial investigations, feasibility studies, remedial design, remedial action implementation, construction management, and long-term site closure strategies. It also provides technical oversight, mentors junior staff, manages client relationships, and supports business development while ensuring project quality, safety, and regulatory compliance. The position leads and directs remediation work for federal, state, municipal, and private-sector clients, develops remediation strategies for sites affected by a range of contaminants, and may serve as Engineer of Record on remedial design projects. It develops project scopes, work plans, schedules, cost estimates, and budgets; reviews contractor documentation; and supports remediation system startup, optimization, troubleshooting, and performance monitoring. The role also leads regulatory meetings and negotiations, oversees technical reports and design documents, supervises field investigation teams, and may provide remedial construction management consulting. The engineer mentors other professionals and assists with proposals, marketing, and contract pursuits. HDR describes its employee-owned culture as collaborative and inclusive, with a commitment to welcoming, valuing, respecting, and empowering employees. The role is part of HDR's Waste sector, which delivers waste planning, remediation, engineering, and implementation solutions.

Requirements

Bachelor's degree in Environmental Engineering or a closely related engineering field.
At least 10 years of experience in remedial investigation, design, and implementation of remedial actions, with some project management experience.
Professional engineering license recognized by the licensing board for the location of the position offered, such as PE or P.Eng.
Experience with Microsoft Office applications, including Access, Excel, and Word.
Excellent communication skills.
Commitment to being an active participant in HDR's employee-owned culture.
Strong leadership, client-management, and team-building capabilities.
Ability to work independently and collaboratively with professionals across multiple offices.
Strong commitment to safety and following health and safety protocols.
Ability to handle multiple tasks and meet strict deadlines in a fast-paced, dynamic environment.
Ability to travel as required.

Nice To Haves

At least 12 years of experience in remedial investigation, design, and implementation of remedial actions, with some project management experience.
Experience with soil and groundwater remedial technologies.
Experience with Federal Superfund, DoD, DOE, USACE, or other federal environmental programs.
Mining remediation and abandoned mine lands experience.
Experience with PFAS investigation and remediation projects.
Strong understanding of risk assessment and remedy optimization.
Working knowledge of AutoCAD Civil 3D, ArcGIS, Bentley, and environmental data management platforms.
40-Hour HAZWOPER Certification.
PMP certification or demonstrated project management leadership.
Experience negotiating remedial actions and regulatory decisions with federal and state agencies.
Established client relationships and a successful business development track record.

Responsibilities

Lead and direct complex remedial investigation, feasibility study, remedial design, and remedial action projects for federal, state, municipal, and private-sector clients.
Develop remediation strategies for sites impacted by contaminants including VOCs, SVOCs, metals, PCBs, pesticides, PFAS, NAPL, emerging contaminants, and mixed waste streams.
Serve as Engineer of Record for remedial design projects and provide technical review and approval of engineering deliverables.
Develop project scopes, work plans, schedules, cost estimates, and budgets.
Serve as Senior Technical Lead on high-profile remediation projects.
Review contractor submittals, RFIs, change orders, and construction documentation.
Support startup, optimization, troubleshooting, and performance monitoring of remediation systems.
Oversee preparation of Remedial Investigations, Feasibility Studies, Pre-Design Investigations, Remedial Design, and Remedial Action Reports.
Lead meetings and negotiations with regulatory agencies, including EPA, state environmental agencies, and federal stakeholders.
Develop and implement field investigations, primarily supervising investigation teams from the office, with possible field leadership on larger projects.
Serve as a consultant and supervisor on remedial construction management projects as needed.
Perform technical tasks involving data analysis, interpretation, and preparation of technical reports, plans, and specifications, with guidance from senior engineers on larger projects.
Mentor and develop junior and mid-level engineers and environmental professionals.
Assist with marketing, proposals, and contract pursuits for remediation design projects.
Manage client relationships and support project quality, safety, and regulatory compliance.