Geotechnical Engineer — Hybrid Tunnel & Underground Design

Mott MacDonald; Philadelphia (Philadelphia County); Hybrid; USD 77,000 - 86,000; Full time

Benefits offered by this job

401k (matching)

Medical insurance

Dental insurance

Vision insurance

Short‑term disability

Long‑term disability

Paid holidays

PTO

Parental leave

Life insurance

Job summary

Mott MacDonald is seeking a Geotechnical Engineer or EIT to join our dynamic NYC or NJ team. You will contribute to complex underground infrastructure projects, working with experienced engineers and multidisciplinary teams to deliver innovative, sustainable solutions.

You will grow through mentorship, technical training, and hands‑on project experience, with a hybrid office model requiring at least three days on site per week.

Qualifications

• Bachelor’s degree in Civil, Geotechnical, or Structural Engineering.
• 1+ years of full‑time experience.
• Registered or eligible for registration as an Engineer‑in‑Training (EIT) perferred but not required.
• Strong foundation in soil/rock mechanics, structural analysis, underground construction.
• Proficiency in AutoCAD, Plaxis, FLAC or similar tools.
• Excellent written and verbal communication skills.
• Enthusiasm for complex infrastructure projects and learning from leaders.

Responsibilities

• Assist in design and analysis of tunnel structures, shafts, caverns, and underground transit systems.
• Support geotechnical and structural assessments using modeling and design software.
• Prepare technical reports, drawings, and specifications under supervision.
• Participate in site investigations, inspections, and construction support activities.
• Collaborate with multidisciplinary teams including geotechnical, civil, and environmental engineers.
• Contribute to sustainability and carbon‑conscious design initiatives.
• Engage in knowledge sharing and professional development programs.

Skills

AutoCAD

Plaxis

FLAC

Education

Bachelor’s degree in Civil Geotechnical or Structural Engineering

EIT certification or eligibility

Tools

Engineering design software

Job description

Mott MacDonald is seeking a Geotechnical Engineer or EIT to join our dynamic NYC or NJ team. You will contribute to complex underground infrastructure projects, working with experienced engineers and multidisciplinary teams to deliver innovative, sustainable solutions.

You will grow through mentorship, technical training, and hands‑on project experience, with a hybrid office model requiring at least three days on site per week.