NERA Billing Coordinator/Executive Assistant (NYC) | New York, NY, USA

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Website Marsh McLennan

Job Overview: NERA Billing Coordinator / Executive Assistant (NYC)

NERA Economic Consulting, a subsidiary of Marsh McLennan, is seeking a high-level Billing Coordinator and Executive Assistant for its New York City office. This unique hybrid role combines technical finance administration with high-touch executive support, providing a critical backbone for directors and consulting teams across several practice areas.

You will join a collaborative North American administrative team, managing complex, time-sensitive, and confidential tasks that support NERA’s delivery of economic analysis and expert testimony to world-leading law firms and corporations

 

Key Responsibilities & Financial Administration

Billing & Project Coordination

  • Invoicing Lifecycle: Manage the end-to-end billing process using NERA’s project management system (Claim.Check). This includes setting up project codes, maintaining client details, and reviewing monthly proformas with directors.

  • Financial Tracking: Reconcile monthly charges against project budgets, track sub-contractor/special consultant fees, and manage expenses for billable projects.

  • Reporting: Maintain sophisticated tracking spreadsheets for multi-payor projects and facilitate communication between directors and the corporate controllership to improve financial controls.

  • Legal Documentation: Prepare client engagement letters and ensure all work products adhere to strict company document standards.

Executive & Office Support

  • Travel & Logistics: Coordinate complex domestic and international travel, including visa procurement, passport maintenance, and detailed itinerary preparation.

  • Schedule Management: Proactively manage schedules, coordinate internal/external meetings, and oversee vendor/AV setup and catering.

  • Expense Management: Prepare, reconcile, and track reimbursement reports and process supplier invoices via purchase orders.

  • Facilities Oversight: Manage day-to-day local facilities operations, entertainment budgets, and office events, ensuring a professional and collaborative environment.

Requirements & Qualifications

Professional Experience

  • Tenure: Five years of experience providing administrative finance or accounting support.

  • Environment: Preference for candidates coming from a legal or professional services background.

  • Technical Skills: Advanced proficiency in Microsoft Office (Word, Excel, PowerPoint) and CRM software. Familiarity with e-billing systems is highly desirable.

Core Competencies

  • Analytical Rigor: Strong ability to structure ambiguous problems and normalization of data.

  • Attention to Detail: Exceptional proofreading and editing skills, with a commitment to maintaining orderly systems.

  • Self-Starter: A high degree of initiative and the ability to solve problems independently and discreetly.

  • Communication: Outstanding interpersonal skills for client interaction and the ability to collaborate across multiple global offices.

Compensation & Total Rewards

  • Base Salary: $90,000 – $95,000 per year (Eligible for overtime).

  • Incentives: Eligible for performance-based incentives.

  • Retirement & Savings: 401(k) savings and other retirement programs.

  • Health & Welfare: Competitive total rewards package including health benefits and employee assistance programs.

  • Education: Access to tuition assistance programs.

Work Environment & Hybrid Policy

  • Location: NYC Office (Marsh McLennan/NERA).

     

  • Hybrid Model: Colleagues are expected to work in the office at least three days per week, with at least one designated “anchor day” for full-team collaboration.

  • Culture: Collegial and rigorous, focusing on individual professional development and a commitment to unbiased economic findings.

Why Join NERA?

Since 1961, NERA has been at the forefront of shaping global policy and industry standards. As a member of the administrative team, you aren’t just an assistant; you are a facilitator of high-stakes economic integrity. You will work in an environment where academic rigor meets real-world industry experience, backed by the global resources of Marsh McLennan.

Application Information

Interested candidates should apply through the Marsh McLennan/NERA Careers portal. Your application should emphasize your experience with complex billing cycles and your ability to support high-level executives in a fast-paced, professional services environment.

The Company & Culture Marsh McLennan is a global powerhouse in risk, strategy, and people, acting as the parent company for Marsh, Guy Carpenter, Mercer, and Oliver Wyman. Its culture is anchored by a philosophy called “The Greater Good,” a code of conduct emphasizing integrity, transparency, and accountability. In 2026, the company is undergoing a significant brand evolution, unifying its diverse businesses under the single “Marsh” banner (effective January 2026) to simplify its market presence. The internal environment is described as collaborative, professional, and increasingly tech-centric, with a major focus on “cutting-edge GenAI tools” that are integrated directly into the colleague experience.

The Location Marsh McLennan’s global headquarters is located at 1166 Avenue of the Americas (6th Avenue) in Midtown Manhattan.

  • The 1166 Hub: This 1.5-million-square-foot tower serves as the company’s operational heart. The office design is intentionally modern, featuring an open perimeter to maximize Manhattan views for all staff, while private offices are tucked into the interior.

  • The 9/11 Memorial: A permanent glass and stone memorial is located in the adjacent plaza, honoring the 295 employees and 63 contractors lost during the September 11 attacks—a core part of the company’s institutional memory and community spirit.

  • Secondary Sites: The Marsh McLennan Agency (MMA) also maintains a presence at 350 Madison Avenue, focusing on mid-market client services.

To apply for this job please visit www.corporate.marsh.com.