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Senior Billing Specialist - US Entities

sia

Toronto, ON, Canada contract

Posted: March 10, 2026

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Quick Summary

We are seeking a Senior Billing Specialist to join our team in Toronto, Canada. The ideal candidate will have expertise in billing and accounting software, with a strong background in financial management and a keen eye for detail. The successful candidate will work closely with clients to optimize their billing and revenue growth.

Job Description

Sia Partners is a next-generation management consulting firm and pioneer of Consulting 4.0. We offer a unique blend of AI and design capabilities, augmenting traditional consulting to deliver superior value to our clients. With expertise in more than 40 sectors and services, we optimize client projects worldwide. Through our Consulting for Good approach, we strive for next-level impact by developing innovative CSR solutions for our clients, making sustainability a lever for profitable transformation.

Our continued success and expansion are primarily due to the quality of our team members. Our consultants work closely with the C-suite at our clients to accelerate and de-risk business growth while improving their customer and employee experience. 

Senior Billing Specialist - US Entities 

• This is a hybrid position in Toronto or Montreal.

• Permanent 

• Hybrid model - up to 4x/week

As Senior Billing Specialist for our US entities, your key responsibilities will be:

• Lead monthly closing activities, including reconciliations, journal entries, and financial reporting
• Investigate and resolve accounting issues and discrepancies promptly
• Prepare and analyze financial statements and management reports
• Support process improvements and ensure accuracy of financial data across systems
• Collaborate with cross-functional teams to ensure timely and accurate information flow
• Manage and problem-solve transactional accounting activities as needed (AP, AR, bank recs, etc.)
• Work independently in a fast-paced environment and meet tight deadlines

• We are looking for someone with 5+ years of progressive accounting experience, strong knowledge of accounting principles and month-end close processes
• Proficiency with Sage Intacct is a must
• Advanced MS Excel skills (pivot tables, lookups, formulas, data analysis) are required for this position
• The candidate needs excellent communication skills and the ability to work effectively with teams across departments; must be detail-oriented, analytical, and highly organized
• They should be known for their ability to problem solve and work under pressure with minimal supervision, and have to be self-motivated, proactive, and hands-on

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

• Competitive salary with a clear and structured yearly salary increase and bonuses
• Healthcare that includes dental, vision, life insurance, and RRSP contributions
• Career advocacy program that supports achieving personal development goals through coaching, collaboration, and real-time feedback
• Robust learning and development platform through the Sia Institute, Working Groups and Training
• Reimbursement for continuing education and certifications
• Your team will consist of highly educated, specialised and entrepreneurial consultants within a company which is a successful player in the global consulting market
• Working in an  environment which creates opportunities to share knowledge and work together on international projects with colleagues all over the world

DEIB

Diversity, equity, inclusion, and belonging (DEIB) are part of Sia Partners’ 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 Partners, brings together our people worldwide to facilitate local and global progress, focused on the following areas:

• Gender equality (global Gender Equality Index score of 91/100 for FY19-20)
• LGBTQ+
• Race & Ethnicity
• Working Parents
• Disabilities

To learn more about Sia Partners, please visit: 

https://www.sia-partners.com/en/join-us

Sia Partners 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. 

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