Principal Estimator SME

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

We are more than 34,000 people, in over 30 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.

Arcadis is seeking a highly skilled and motivated Principal Estimator SME 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 managing field operations, coordinating multidisciplinary teams, driving safety and quality, and ensuring schedule and budget adherence for one of the largest infrastructure projects in the region.

We are working as the Delivery Partner along with team members and 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.

• Develop, assemble, and maintain comprehensive capital budgets and Total Project Cost estimates for major infrastructure programs.
• Develop and review conceptual, ROM, design-stage, pre-tender, and progressively mature cost estimates.
• Review and challenge quantities, unit rates, productivity assumptions, indirect costs, escalation, contingency, allowances, risk, and other estimate components.
• Consolidate estimates from multiple projects, contracts, designers, consultants, and delivery teams into an integrated program-level capital budget.
• Lead estimate reconciliation, clearly identifying movements associated with scope development, design maturity, quantities, pricing, escalation, risk, procurement strategy, and market conditions.
• Develop and maintain cost benchmarks using historical project data, comparable programs, productivity information, market intelligence, and contractor/supplier pricing.
• Perform comparative cost and option analyses to support decisions regarding scope, design, packaging, procurement, phasing, and delivery strategy.
• Support development and review of Basis of Estimate documentation, cost breakdown structures, assumptions, exclusions, allowances, and estimate methodologies.
• Evaluate the cost implications of design development, scope changes, procurement results, contract changes, and emerging project conditions.
• Maintain traceability between approved budgets, current estimates, commitments, changes, contingency, and forecast outturn…