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A leading consulting firm seeks a Billing Specialist to oversee billing processes and invoicing for client projects in North America. As part of the Finance team, you'll ensure accuracy and compliance with contracts while developing strong collaborative relationships across departments. This hybrid role offers the chance to contribute to a dynamic team's success.
We are seeking a highly organized, detail-oriented, and experienced Billing Specialist to join our dynamic and collaborative Finance team. This is a key role within our North American operations, responsible for managing the entire billing cycle for a diverse portfolio of client projects across both the U.S. and Canada. Your expertise will directly contribute to the accuracy, efficiency, and integrity of our financial processes.
In this role, you will work closely with the North America Billing Manager , internal teams, and external stakeholders to ensure that billing and invoicing activities are performed on time, in compliance with contractual terms, and aligned with company policies. You will be expected to take full ownership of the billing process—from project and contract setup , to invoicing , timesheet reconciliation , and accounts receivable management .
You will also serve as a subject matter expert in billing and contract structures, particularly Time & Materials (T&M) and Fixed Fee billing models. This includes ensuring accuracy in project setup, identifying and resolving discrepancies in timesheets and client systems, and communicating effectively with partners, account managers, and clients.
This position is ideal for someone with a strong background in billing, accounting, and client service—especially within a consulting or professional services environment —who is confident working in fast-paced, deadline-driven settings. The successful candidate will bring advanced skills in Excel, Outlook, accounting systems such as SAGE Intacct, and internal time tracking systems, along with the ability to analyze data, manage multiple priorities, and collaborate across departments.
Location & Work Structure :
Key Responsibilities :
Billing Setup & Project Management
Invoicing & Reconciliation
Accounts Receivable (A / R) Management
Communication & Documentation
Qualifications
Required Skills & Qualifications :
Technical Tools & Systems :
Additional information
WHAT DO WE OFFER?
This is an opportunity to join a rapidly growing team to serve some of the most exciting and highly respected companies in the world. You will have the opportunity to provide clients with pioneer mind-set thinking, customized solutions, and you will often have the satisfaction of seeing the impact of your work on their business. We are committed to a healthy work-life integration.
BENEFITS
DEIB
Diversity, equity, inclusion, and belonging (DEIB) are part of Sia’s DNA. Thanks to our expertise in several sectors and our international growth, our teams include a variety of experiences and cultures. We’re confident that promoting DEIB creates an environment in which everyone can reach their full potential.
Our global network, DEIB@Sia, brings together our people worldwide to facilitate local and global progress, focused on the following areas :
To learn more about Sia, please visit :
Sia is an equal opportunity employer. All aspects of employment, including hiring, promotion, remuneration, or discipline, are based solely on performance, competence, conduct, or business needs.
Sia is an equal opportunity employer. All aspects of employment, including hiring, promotion, remuneration, or discipline, are based solely on performance, competence, conduct, or business needs.