Senior Environmental Scientist II — NEPA

Job overview

The Senior Environmental Scientist II — NEPA role is hybrid, with listed locations in Lancaster, Mechanicsburg, State College, and Williamsport, PA. Compensation is not specified. The role is part of RETTEW's Natural Sciences team and supports responsible progress on transportation and infrastructure projects. The scientist manages environmental review and clearance work, primarily under the National Environmental Policy Act, so infrastructure projects can move through environmental decisions with appropriate studies, documentation, and agency coordination. The work combines independent assignment management with collaboration across clients, agencies, and multidisciplinary technical teams.

What you'll do

• Prepare and coordinate NEPA clearance documents, environmental assessments, technical reports, agency correspondence, and project deliverables
• evaluate plans and environmental data
• determine needed studies and coordination
• support field investigations and environmental studies
• coordinate with clients, agencies, engineers, planners, and technical specialists
• support Section 4(f) evaluations, mitigation tracking, public involvement, scopes, budgets, schedules, and assigned staff tasks. Fieldwork may comprise approximately 25% of the position, with driving expected approximately weekly depending on workload.

What we're looking for

Skills & competencies

rettew

senior environmental scientist ii

nepa

hybrid

lancaster pa

mechanicsburg pa

state college pa

williamsport pa

environmental review

transportation projects

infrastructure

section 4(f)

fieldwork

Work arrangement

• Weekend coverage required

Benefits & perks

• Employee Stock Ownership Plan, medical, dental and vision benefits, disability and life insurance, 401(k) with company match, paid time off and holidays, and professional-development and certification support.

Why this role

Hybrid schedule with office, remote, and field assignments; approximately 25% fieldwork may be involved. RETTEW is 100% employee-owned and offers an Employee Stock Ownership Plan.

About the employer

RETTEW is hiring for this role. Industry: Engineering Services. Sector: 54.