Controller

About NANO Nuclear Energy

NANO Nuclear Energy Inc. (NANO) is an advanced nuclear technology company developing next-generation microreactor systems that will help transform the future of clean, reliable, and resilient energy. Through the development of its KRONOS MMR™ Energy System, LOKI MMR™ Energy System, and ZEUS™ Solid Core Battery Reactor-advanced high-temperature gas-cooled reactor (HTGR) technologies designed for applications including data centers, industrial operations, remote communities, and critical infrastructure-the company is advancing innovative nuclear solutions for a rapidly evolving energy landscape. NANO Nuclear has also submitted a Construction Permit Application (CPA) to the U.S. Nuclear Regulatory Commission (NRC) to support the planned deployment of the KRONOS MMR at the University of Illinois Urbana-Champaign (UIUC), representing a significant milestone toward the commercialization of advanced nuclear technology.


NANO is a publicly traded company listed on the NASDAQ and is expanding through both organic development and strategic acquisitions as it pursues vertical integration across reactor technology, fuel cycle capabilities, and supporting operations. Joining NANO means playing a key role in building and supporting the financial infrastructure of a company at a formative stage, working alongside a leadership team advancing one of the most technically and commercially significant energy transitions underway. Our team operates in a collaborative, entrepreneurial environment where employees are expected to take ownership of complex problems and to build the processes and standards that will support the Company as it scales.

Position Overview

NANO is seeking an experienced Controller to lead the corporate accounting function during a period of rapid growth and vertical integration. Reporting to the CFO and based in our New York City headquarters, the Controller will own the close, consolidation, technical accounting, external reporting, and internal control environment for a public company that is simultaneously advancing reactor development, fuel cycle capabilities, and acquired businesses across multiple jurisdictions.


As a large accelerated filer, the Company is subject to external auditor attestation on internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act. A comprehensive control framework has been established with the support of a dedicated SOX advisory firm, and testing of control operation is underway. The Controller will assume ownership of that framework, operate it through the reporting calendar, and extend it to newly acquired and international entities.

The ideal candidate will partner closely with various teams and stakeholders, while leading an accounting team. This is a hands-on accounting leader with strong technical expertise, experience managing complex project-based accounting environments, and a passion for building processes, systems, and teams in a fast-growing organization.

Key Responsibilities

Accounting Operations, Close & Consolidation

• Own the corporate accounting function, including the general ledger, monthly, quarterly, and annual close processes, intercompany transactions, foreign currency translations, and consolidation across a growing multi-entity, multi-jurisdictional structure.
• Drive close calendar discipline and continuously compress reporting cycle times without sacrificing control quality or accuracy.
• Oversee project and cost accounting for reactor development programs, fuel-cycle initiatives, and other capital-intensive activities, ensuring precise labor and cost allocation across programs and entities.
• Lead the accounting integration of newly acquired businesses, aligning them with the corporate close calendar, consolidation procedures, accounting policies, and internal control frameworks.
• Ensure a continuous state of audit readiness by maintaining complete, well-organized, and review-ready workpapers and documentation.

SEC Reporting & Technical Accounting

• Prepare and review consolidated financial statements, footnote disclosures, and supporting analyses in accordance with U.S. GAAP and SEC rules, partnering with the CFO on the financial content for Forms 10-K, 10-Q, and registration statements.
• Research, evaluate, and document accounting conclusions for complex and judgmental transactions in formal technical memoranda. Key areas include business combinations and asset acquisitions (ASC 805), consolidation and variable interest entities (ASC 810), research and development costs (ASC 730), stock-based compensation (ASC 718), leases (ASC 842), equity and liability classification (ASC 480/815), goodwill and long-lived asset impairment (ASC 350/360), and revenue recognition (ASC 606) as commercial operations develop.
• Partner with the CFO to manage engagements with third-party valuation specialists regarding purchase price allocations, intangible asset and equity instrument valuations, and impairment analyses, providing support and evaluating their conclusions.
• Support financial due diligence and drive opening balance sheet readiness for acquisitions, joint ventures, and strategic investments, including complex cross-border targets .
• Manage the accounting for government grants, tax credits, and state and federal incentive programs, while actively monitoring emerging accounting standards and SEC guidance for potential impact on the company.
• Develop, maintain, and communicate accounting policies and procedures across all legal entities.

Internal Control over Financial Reporting

• Assume management ownership of the Company's ICFR framework under Section 404 of the Sarbanes-Oxley Act, including scoping, risk assessment, process narratives, control matrices, and evidence retention sufficient to support external auditor attestation under Section 404(b).
• Drive the execution of the control environment throughout the reporting calendar, ensuring controls are performed on cadence and evidenced to a standard that withstands rigorous attestation testing.
• Extend the control framework to newly acquired and international entities, including scoping, designing new controls where required, and remediating gaps identified during integration.
• Evaluate control deficiencies, drive remediation efforts to completion, and support management's assessment of ICFR effectiveness and related disclosure controls.
• Oversee entity-level controls, segregation of duties, delegation of authority, and system access reviews as headcount and systems scale.
• Manage the relationship with the Company's SOX advisory partner, continually evaluating the optimal resourcing model and supporting a potential future transition to an in-house function as the company scales.

Audit, Tax & External Stakeholders

• Serve as primary day-to-day contact for external auditors across quarterly reviews and the annual integrated audit, overseeing audit deliverables (PBCs), issue resolution, and strict timeline adherence.
• Coordinate with tax advisors on U.S. federal, state, and foreign tax provision (ASC 740), compliance, transfer pricing, and the tax implications of acquisitions and entity structuring.
• Manage relationships with accounting resources, valuation firms, and other specialized external advisors to ensure high-quality, timely deliverables.

Systems, Process & Team

• Evaluate, enhance, and scale the accounting technology stack, including ERP, consolidation, and close management tools, with a focus toward automation, standardization, and control-by-design.
• Lead system implementations and enhancements from the accounting side, including requirements definition, testing, cutover, and post-implementation controls.
• Build, mentor, and develop the accounting team, and design the organizational structure needed to support the Company's growth and vertical integration strategy.
• Partner cross-functionally with engineering, licensing, legal, supply chain, and program leadership to ensure transactions are captured accurately and business decisions reflect their accounting and reporting consequences.

Required Qualifications

• Bachelor's degree in Accounting or Finance.
• Active CPA license.
• Minimum 10 years of progressive accounting experience, including significant experience with SEC registrants.
• Demonstrated ownership of financial reporting at an SEC-reporting company, including preparation or detailed review of Forms 10-K and 10-Q and related footnote disclosures.
• Direct, hands-on experience operating within an internal control environment subject to Sarbanes-Oxley Section 404, including experience supporting external auditor attestation under Section 404(b).
• Demonstrated technical depth in U.S. GAAP, with the ability to independently research complex issues, reach supportable conclusions, and document them in formal accounting memoranda that withstand external audit scrutiny.
• Experience preparing or reviewing consolidated financial statements for a multi-entity group, including intercompany eliminations and foreign currency translation.
• Experience managing external audit relationships as a primary point of contact.
• Proven ability to operate in a fast-moving environment with competing deadlines, and to deliver on a public company filing calendar with limited margin for slippage.
• Advanced Excel skills and demonstrated proficiency with ERP and financial reporting systems.

Preferred Qualifications

• Public accounting background at a national or Big 4 firm, ideally including audit experience with SEC registrants, combined with subsequent industry experience.
• Experience at a company that transitioned to large accelerated filer status, or that established a 404(b)-compliant control environment for the first time.
• Substantive purchase accounting experience under ASC 805, including opening balance sheets, purchase price allocation review, and post-acquisition integration of acquired entities onto the corporate close calendar and control framework.
• Cross-border experience, including consolidation of foreign subsidiaries, statutory reporting coordination, and working with local advisors in multiple jurisdictions.
• Experience with pre-revenue, development-stage, or capital-intensive companies, including R&D, cost accounting, and program or project cost tracking.
• Familiarity with accounting for government grants, tax credits, and federal or state incentive programs.
• Experience in energy, nuclear, aerospace, defense, advanced manufacturing, or another heavily regulated technical industry.
• Experience leading or supporting an ERP implementation, migration, or significant systems upgrade.
• Track record of building and developing an accounting team.

What We Offer

• The opportunity to build the accounting and reporting infrastructure of a public company at an early and formative stage.
• Substantive technical accounting work, including business combinations, consolidation and VIE analysis, R&D cost classification, equity instruments, and cross-border structuring.
• Direct exposure to strategic transactions, including domestic and international acquisitions, from diligence through opening balance sheet and integration.
• Close partnership with the CFO, with ownership of the external audit relationship and the reporting calendar.
• A dynamic role within a company driving vertical integration across reactor technology, fuel capabilities, and supporting operations, ensuring the financial and accounting landscape remains as innovative and fast-paced as the business itself.
• Competitive compensation and benefits package.
• The opportunity to contribute to a cleaner, more reliable energy future.

Location


This position is in-office based in the Company's New York City office at 10 Times Square. Remote flexibility is not available for this position.


Equal Opportunity Statement

NANO Nuclear Energy is an equal opportunity employer committed to fostering a diverse and inclusive workplace. We encourage individuals with diverse backgrounds, experiences, and perspectives to apply.