Senior Cost Engineer - Gateway

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.

We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.

Role Description:

Arcadis is seeking a highly skilled and motivated Senior Cost Engineer to support one of the most iconic and consequential infrastructure initiatives in the United States — the Gateway Hudson Tunnel Project (HTP). In this role you will be responsible for supporting project delivery through rigorous cost analysis, forecasting, reporting, and change management. The Senior Cost Engineer will collaborate with project managers, engineers, contractors, and stakeholders to ensure the project remains on budget and meets all financial performance targets.

We are working in partnership with Parsons and Mace as part of the MPA Delivery Partner team, selected by the Gateway Development Commission to deliver this transformative project. The HTP is a critical component of the broader Gateway Program — one of the most ambitious and impactful transportation initiatives in the nation — and is designed to strengthen mobility, enhance resiliency, and ensure the long-term reliability of the Northeast Corridor.

The project encompasses the construction of a new, two-track rail tunnel beneath the Hudson River, along with the full rehabilitation of the existing 113-year-old North River Tunnel. This vital infrastructure supports more than 200,000 daily passengers via Amtrak and NJ TRANSIT and serves as a backbone for economic activity and connectivity between New York and New Jersey.

This is more than just a job — it’s a once-in-a-generation opportunity to contribute to a nationally significant infrastructure program that will reshape rail transportation, drive sustainable economic growth, and improve regional accessibility for millions. As part of this high-performing, multidisciplinary team, you will help deliver excellence on one of the most technically complex and high-profile projects in the world.

If you're seeking to make a meaningful, lasting impact — while advancing your career alongside some of the best minds in the industry — this is your moment.

Role Accountabilities:

• Cost Estimating & Analysis
  • Prepare and review independent cost estimates for procurements and project needs.
  • Analyze contractor price proposals, change order estimates, and claims.
  • Validate and recommend approval, amendment, or rejection of contractor cost submissions.
• Budget Management & Forecasting
  • Implement cost and budget management requirements in alignment with the Hudson Tunnel Project Management Plan (HTP PMP).
  • Track, forecast, and report on all contract changes, allowances, and budget impacts.
  • Develop and implement supplemental metrics, procedures, and processes for effective cost management.
• Project Controls & Reporting
  • Support project controls, including schedule management and risk assessment related to cost.
  • Update risk registers and assessment reports for contingency planning.
  • Contribute daily, monthly, and quarterly reporting on project status, progress, and financial compliance.
• Change Management
  • Assist in reviewing and managing all project contracts, cost, schedule, risk, and environmental impact changes.
  • Coordinate changes to designs and contract documentation, ensuring proper financial tracking.
• Supply Chain & Market Analysis
  • Advise on impacts to project costs related to supply chain market conditions and fluctuations in commodities, materials, and equipment.
• Document & Records Control
  • Ensure accurate tracking, storage, and retrieval of cost-related documents and records.
  • Support document control processes for financial documentation.
• Dispute & Conflict Resolution
  • Provide technical support for disputes and conflict resolution proceedings related to cost, schedule, and