Demo

Assistant Controller

thenuclearcompany
Columbia, SC Full Time
POSTED ON 1/11/2026
AVAILABLE BEFORE 2/10/2026

The Nuclear Company is the fastest growing startup in the nuclear and energy space creating a never before seen fleet-scale approach to building nuclear reactors. Through its design-once, build-many approach and coalition building across communities, regulators, and financial stakeholders, The Nuclear Company is committed to delivering safe and reliable electricity at the lowest cost, while catalyzing the nuclear industry toward rapid development in America and globally.

About the role

The Assistant Controller will play a critical, hands-on role in the daily accounting operations and financial reporting of the organization. Working closely with and reporting to the Controller, this position requires a strong working knowledge of Generally Accepted Accounting Principles (GAAP), financial analysis, and internal control best practices. 

The Assistant Controller will be instrumental in managing the month-end close process, assisting with the preparation of accurate financial statements, and ensuring transactional accounting compliance. This role provides an excellent opportunity to develop leadership skills and drive process efficiencies within the finance department of a rapidly scaling organization as it develops. 

Responsibilities

  • Financial Reporting Assistance: Assist in the preparation of accurate and timely financial statements (balance sheets, income statements, and cash flow statements). Provide support for financial analysis projects and management reporting. 
  • Accounting Operations Execution: Manage the execution of specific accounting functions, such as overseeing the General Ledger reconciliation process, reviewing accounts payable/receivable, and ensuring the accuracy of complex journal entries. 
  • Month-End and Year-End Support: Execute key tasks within the month-end and year-end closing processes, including managing accruals, preparing balance sheet reconciliations, and ensuring timely completion of all close activities. 
  • Internal Controls and Compliance: Help maintain and enforce effective internal controls across accounting operations. Support the documentation and testing of controls to ensure compliance with financial regulations and company policies. 
  • Budgeting and Forecasting Support: Provide supporting data and analysis for the annual budgeting and ongoing forecasting processes. Track departmental spending and assist in variance analysis. 
  • Audit Coordination: Serve as a key resource during internal and external financial audits, preparing requested documentation and schedules. 
  • Process Improvement: Identify and implement improvements to accounting processes, software utilization, and documentation to increase efficiency and accuracy. 

Experience

  • 8 years of progressive accounting experience, preferably with exposure to both corporate and public accounting environments. 
  • Bachelor's degree in Accounting, Finance, or a related field. 
  • Demonstrated strong understanding of Generally Accepted Accounting Principles (GAAP) and financial reporting standards. 
  • Proficiency in accounting software and ERP systems (experience with implementation is a plus), with advanced Microsoft Excel skills. 
  • Proven ability to perform financial analysis, interpret data, and prepare detailed reconciliations. 
  • Strongly preferred:
    • CPA certification or actively pursuing.
    • ERP implementation experience.
    • Start-up experience and Big 4 audit experience.
    • Large capital expenditure project experience and Power/Energy/Utility industry experience.
    • Audit process implementation experience. 
    • Exposure to public-company reporting. 

Benefits

  • Competitive compensation packages
  • 401k with company match
  • Medical, dental, vision plans
  • Generous vacation policy, plus holidays

Estimated Starting Salary Range
The estimated starting salary range for this role is $118,000 - $140,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. 

EEO Statement
The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination.

Export Control
Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants.

Salary : $118,000 - $140,000

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