Staff Accountant II

About Coresite

At Core Site, we empower a more connected future through high‑performance data centers and interconnection solutions. Recognized as a trusted partner in digital transformation, our strategically located facilities and innovative services enable businesses to connect, collaborate, and grow in an ever‑evolving technological landscape. Our culture is defined by operational excellence and a relentless drive for innovation. We foster a collaborative environment where every team member is valued, wins are celebrated as a team, and ownership is part of our DNA.

At Core Site, we’re not just building state‑of‑the‑art infrastructure—we’re creating a community of forward‑thinkers committed to solving complex challenges and delivering exceptional customer experiences.

As a member of the Company’s Accounting team, the Staff Accountant II is responsible for ensuring the accuracy, integrity, and compliance of financial operations for the company’s owned and leased data center properties and corporate headquarters. This role includes completing accounting functional processes for multiple entities, preparing monthly journal entries, reconciling balance sheet accounts, preparing financial statements and monthly, quarterly, and annual reporting packages, including variance analysis of income statements and balance sheets, completing common area maintenance (CAM) reconciliations for some data center customers, and obtaining an understanding of all accounting and financial reporting for these properties.

The staff accountant is involved in a structured monthly close process and is responsible for ensuring compliance with Core Site’s accounting policies, procedures and Sarbanes‑Oxley internal controls over financial reporting (SOX 404). Success in this role requires collaboration across departments, professional presentation and communication skills, adaptability to evolving business needs, and a proactive approach to financial analysis and reporting.

• Demonstrate a solid understanding of accounting principles specific to Core Site’s owned and leased real estate properties and corporate headquarters to ensure accurate financial reporting and analysis
• Prepare monthly journal entries, balance sheet reconciliations, fixed asset reports, accrual analyses, and financial close packages, including income statement and balance sheet variance analyses against forecasts and historical data
• Manage assigned responsibilities within the structured month‑end close process, ensuring all deliverables are accurate, complete, and finalized by the 5th business day of each month
• Maintain well‑supported accounting schedules and reconciliations aligned with the general ledger and reporting requirements
• Ensure compliance with GAAP, company accounting policies, procedures, and SOX (Sarbanes‑Oxley) requirements
• Proactively research and address accounting questions, seeking guidance when needed and presenting thoughtful, well‑considered solutions
• Provide timely, accurate, and well‑documented financial information to support external audits and quarterly reviews
• Collaborate with cross‑functional teams to support financial reporting activities and resolve accounting‑related inquiries
• Assist with business process improvements and IT system enhancements that increase efficiency and accuracy within the accounting department
• Manage workload independently, track progress against deadlines, and communicate key updates without prompting
• Provide support for additional financial, accounting, and operational needs, as well as other projects and duties as assigned
• Participate in ad‑hoc projects and analyses as needed based on business development
• Promote and demonstrate the behaviors consistent with Core Site’s Culture and Core Values

• Ability to thrive in a hybrid work environment that includes at least two onsite days per week in the downtown Denver office, currently Tuesdays and Wednesdays for in‑person collaboration
• Solid understanding of GAAP and real estate specific financial reporting, with knowledge of accrual‑based accounting, power revenue and expense allocations;
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