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Mott MacDonald

Engineer IV Tunnels

Salary:  $142,750 per annum
Location:  New York, NY, US
Location flexibility:  3 office days / week
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Job Description

Perform the role of Lead Engineer to develop advanced numerical models to evaluate complex underground works, including tunnels in soft ground and rock, large caverns, and deep excavations. Develop geotechnical interpretations to support underground engineering analysis and design, including assessing field investigation data and laboratory test results for soil and rock materials. Formulate appropriate non‑linear soil and rock constitutive relationships and parameters for use in numerical analyses of underground excavations. Develop design solutions, technical reports, specifications, and construction drawings for a wide range of underground projects, including new underground construction as well as the rehabilitation of existing underground facilities. Support senior technical leaders in developing project pursuits, including providing technical input and bid‑stage solutions for the preparation of technical proposals. Mentor and supervise other engineering staff to ensure best‑practice methodologies are applied and client objectives are met with high‑quality, technically sound solutions. Position reports into New York City, NY office; however, telecommuting from a home office is allowed. Less than 10% travel required for site investigation, inspection, and data collection.

Requirements: Requires a Master’s degree in Civil, Structural, or Geotechnical Engineering plus six (6) years of tunnel engineering experience. Experience may be gained concurrently and must include:

Six (6) years of experience in the following:

  • Analysis and design of underground structures including soft ground and rock tunnels using both tunnel boring machines, or conventional methods of construction.

Three (3) years of experience in each of the following:

  • Performing numerical analysis and design of underground structures using typical industry standard numerical software including Plaxis 2D, Plaxis 3D, FLAC 2D, FLAC 3D, or similar numerical or soil-structure interaction analysis software
  • Working with advanced soil and rock mechanics, ground investigation, and ground modeling
  • Developing geological models, including interpretation and development of soil and rock parameters for application in numerical modeling and design calculation
  • Utilizing industry standard commercial software including gINT, LeapFrog, or RockSciences suite of analytical models
  • Performing geotechnical analysis and design, and production of construction drawings and specifications for underground constructions in both soft ground and rock conditions, including transportation tunnels, water and wastewater tunnels, or deep shafts, as well as structural rehabilitation.

Alternatively, will accept a Bachelor’s degree and eight (8) years of above described experience.

Salary: $142,750/year. Benefits: 401k, medical, dental, and vision insurance, STD/LTD disability, holiday, personal time off (PTO), parental leave, and company-paid life insurance. Apply via https://apply.mottmac.com using Job Ref: 17306

Bring your expertise, curiosity, and drive to make a difference. If you are ready to join a collaborative consultancy where your perspective is valued, your growth is supported, and you are empowered to lead with integrity, we would love to hear from you.

Applicants must be authorized to work for any employer in the US, as Mott MacDonald is unable to provide sponsorship at this time.

Benefits & Rewards

Individual pay is determined based on several factors such as work location, education, experience, and unique skills.

In addition to base salary, Mott MacDonald offers performance-based bonuses and a comprehensive benefits package, giving employees a direct connection to our success.

Our comprehensive benefits package is designed to support the health, wellbeing, financial security, and professional growth of our employees. Eligible employees have access to medical, dental, and vision coverage, FSA and HSA accounts, company-paid life insurance, short-term and long-term disability coverage, and a competitive 401(k) plan with company matching. We also provide paid time off, paid holidays, caregiver leave, employee referral bonuses, professional registration and membership reimbursements, and tuition assistance to support continued learning and career development.

Equal opportunity is the law.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

  • English version
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  • Chinese version

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, creed, marital status, sexual orientation, gender identity, citizenship status or disability status.

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Working at Mott MacDonald

3 office days / week

A little flex time – We’re happy to talk flexible working and how we can support your responsibilities beyond the workplace. We offer a range of options depending on your role, so please discuss this with your recruiter.

Company benefits

Accrued annual leave
Adoption leave – 26 weeks full pay
Annual bonus
Annual pay rises
Bank holiday swaps
Bike parking
Book swaps
Buddy scheme
Buy or sell annual leave
Carer’s leave – up to 5 days, two of which are paid
Compassionate leave
Critical Illness Insurance
Cycle to work scheme
Dental coverage
Employee assistance programme
Employee discounts
Enhanced maternity leave – 26 weeks full pay
Enhanced paternity leave – 2 weeks
Enhanced pension match/contribution – matched up to 7%
Enhanced sick pay
Ergonomic workstations
Eye Care Support – Eyecare vouchers
Faith rooms
Fully stocked snack cupboard
Further education support
Health assessment
In house training
Income protection
L&D budget
Learning platform
Life assurance
Life insurance – 4 x salary
Lunch and learns
Meditation space
Meditation space
Mentoring
Modern office
On-site shower
On-site yoga classes
Open to part time work for some roles
Open to part-time employees
Pregnancy loss leave
Pregnancy support
Private booths
Private GP service – Private Medical care for all UK staff
Professional subscriptions – We pay for your primary professional annual subscription
Referral bonus
Religious celebration leave
Reservist leave – 10 days leave
Returnship
Salary sacrifice
Share options
Shared parental leave – We match up to 24 weeks full pay
Study support
Tax-free childcare
Teambuilding days
Theme park discounts
Travel loan
Women’s health leave
Menopause support
Women’s health support
Collaboration spaces

Awards & Accreditations

Best Employee Wellbeing

Top 5 - Best Employee Wellbeing

Flexa awards 2026
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2026
2nd - Best Career Progression

2nd - Best Career Progression

Flexa awards 2025
3rd - Most Family Friendly Company

3rd - Most Family Friendly Company

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Best Work-Life Balance

Top 5 - Best Work-Life Balance

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025
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Company employees:

18,000 worldwide

Gender diversity (m:f:n-b):

0:35:65

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