Senior Internal Controls Analyst

ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience. Department: Internal Control Schedule: Hybrid (3 days on-site) Travel: 15%-20% The Senior Internal Controls Analyst supports the ICFR Compliance function by assessing, documenting, testing, and enhancing the Company’s internal control environment, including financial, operational, and Information Technology General Controls (ITGC). The Senior Internal Controls Analyst supports process documentation, walkthroughs, control testing, IT and application control scoping, issue identification, remediation follow-up, and continuous improvement initiatives across financial, operational, ICFR, and IT control areas, while providing guidance to less experienced team members. KEY RESPONSIBILITIES Stakeholder Engagement & Planning: Support the development of relationships with management, process owners, and cross-functional stakeholders (including IT) to promote collaboration, accountability, and timely execution of internal control activities. Process Understanding, Risks & Key Controls: Develop a detailed understanding of processes currently operating within each location or business area, including related risks, key controls, control owners, systems, interfaces, and opportunities for improvement. Walkthrough Documentation: Document walkthroughs of financial, operational, and IT-dependent processes, including key controls, systems, interfaces and reports used to execute or evidence controls. Internal Control Reviews & Testing: Lead and perform internal financial, operational, and IT control reviews, audits, and testing across Company business areas and locations in accordance with the Internal Control plan. IT General Controls (ITGC) & IT Scoping: Support IT scoping efforts to identify in-scope applications, systems, and infrastructure supporting financial reporting; assess and test ITGCs across access management, change management, and computer/IT operations; partner with IT process owners to document IT dependencies and evaluate the design and operating effectiveness of IT and application controls. Issue Identification & Recommendations: Identify insufficient documentation, process gaps, or control deficiencies (including IT-related deficiencies); recommend improvements to controls or supporting documentation. Monitoring & Remediation Follow-Up: Support the monitoring and follow-up on control issues, audit findings, and project observations, with a significant focus on remediation tracking, status updates, and validation of corrective actions. External Auditor Coordination: Communicate and liaise with external auditors, including IT auditors, regarding audit requests, supporting documentation, audit findings, and related risk and control discussions, as needed. Ad-Hoc Reviews & Projects: Assist with ad-hoc reviews, special projects, process improvement initiatives, system implementations, and other assignments that support the Company’s internal control environment, ICFR readiness, and broader business objectives. Culture & Values: Demonstrate behaviors aligned with the Company’s values and desired culture, and perform other related duties as assigned. QUALIFICATIONS Bachelor’s degree in Accounting, Finance, Business Administration, Information Systems, Forensic Accounting, or a related field; equivalent relevant work experience may be considered. Minimum of 5 years of experience in internal audit, internal controls, ICFR compliance, public…