Assistant Controller - 878

We are seeking an Assistant Controller in our Broomfield, CO, location. 

Quantinuum believes that employees work better, more efficiently and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approval. 

As the Assistant Controller, you will be a critical partner to the Sr. Controller and CFO, helping lead the financial reporting, accounting operations, and internal control environment for our U.S. business. 

• Oversee and participate in month-end close procedures, including preparation and review of journal entries, reconciliations, and analysis of key balance sheet accounts. 

• Generate financial reporting in accordance with U.S. GAAP, supporting both internal and external reporting needs. 

• Assist with the preparation of consolidated financial statements and footnotes. 

• Support and actively participate in internal control activities, SOX testing, and remediation efforts as required. 

• Provide information as needed to FP&A and business partners to support budgeting, forecasting, and planning processes. 

• Assist in preparation of monthly and quarterly variance analysis, identify trends, and provide insights on variances, risks, and opportunities. 

• Assist in developing, maintaining, and improving accounting policies, procedures, and documentation. 

• Mentor and develop junior accounting staff; provide leadership and hands-on coaching. 

• Work with external auditors during audit planning and execution, ensuring timely deliverables. 

• Partner cross-functionally (e.g., Tax, Treasury, Legal) to support financial initiatives, system implementations, and process improvements. 

• Bachelor’s Degree minimum 

• Minimum 8+ years of experience in GAAP accounting, month-end close procedures, Project Accounting, Cost Accounting, Fixed Assets, reconciliation preparation and review, and GL/AP/AR required 

• Minimum 2 years of experience working with SAP S4 HANA.  

• Minimum 2 years of experience working for a publicly traded company 

• Due to Contractual requirements, must be a U.S. Person defined as, U.S. citizen permanent resident or green card holder, workers granted asylum or refugee status. 

• Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen. 

• CPA or Master’s degree in accounting, finance, or rel