Senior Staff Accountant

All Together, Extraordinary

Aduna is the Connector of networks, bringing together leading telecom operators and technology partners to simplify global access to Network APIs. Through a single, unified platform, we enable businesses and developers to build more secure, seamless and innovative digital services.

We are seeking a hands‑on Senior Staff Accountant who combines strong accounting fundamentals with the curiosity and analytical capability to support a growing, fast‑moving business. This role will own key accounting activities while flexing across financial analysis, payroll support, and special projects as business needs evolve.

The right person is comfortable operating without layers of infrastructure or narrowly defined boundaries. You will bring the discipline and high standards learned in a larger organization, together with the resourcefulness, humility, and willingness to roll up your sleeves that are essential in a small‑company or start‑up environment.

This role may be based in Montreal, Atlanta, New Jersey, New York, or Dallas. If in Montreal, you will work on a hybrid basis out of our downtown office.

If in the U.S., you will work remotely with the potential for quarterly travel which in some cases with be international.

Candidates must be authorized to work in the country where they will be employed. Unfortunately, we are unwilling to sponsor work visas.

• Own key elements of the monthly, quarterly, and year-end close, including journal entries, accruals, account reconciliations, and supporting schedules.
• Maintain the integrity of the general ledger and help produce accurate, timely financial statements and management reporting.
• Analyze results, investigate variances, identify trends and underlying drivers, and translate findings into clear business insights.
• Support budgeting, forecasting, cash‑flow analysis, and other financial planning activities.
• Partner with payroll providers and internal stakeholders to support accurate payroll processing, reconciliations, reporting, and issue resolution.
• Support the controller with special projects.
• Support accounts payable, accounts receivable, expense management, tax, audit, and compliance activities as needed.
• Take on special projects that may sit outside traditional accounting, using sound judgment and analytical skills to solve practical business problems.
• Help strengthen controls, documentation, reporting, and processes while keeping solutions fit for the size and stage of the company.
• Collaborate across functions and geographies, communicating financial information clearly to both finance and non‑finance colleagues.
• Work effectively with external auditors, tax advisors, payroll partners, banks, and other service providers.

• Bachelor’s degree in Accounting, Finance, or a related field; CPA, CA, CMA, or equivalent designation is helpful but not required.
• Five to seven years of progressive accounting experience, including meaningful ownership of close, reconciliations, and financial reporting.
• A hands‑on, team‑first mindset, with the ability to lead when needed and roll up your sleeves to get the work done. No task is too big or too small.
• Strong communicator who builds effective working relationships with colleagues and partners across different cultures, geographies, functions, and professional backgrounds.
• Experience working in treasury, travel and expense processing and management, and procurement.
• Experience in a small company, high‑growth business, or start‑up where priorities shift and team members contribute beyond their core remit.
• Experience in a larger, well‑established organization that has provided exposure to strong controls, disciplined processes, and high‑quality financial reporting.
• Strong…