A-123 Senior Consultant

Castro & Company; Alexandria (VA); Hybrid; USD 80,000 - 100,000; Full time

Job summary

Castro & Company, headquartered in Alexandria, VA, seeks a motivated Senior Consultant to support a Federal client’s financial management and compliance programs. You will strengthen internal controls and lead Appendix A/C testing, while engaging with stakeholders and delivering findings.

The role emphasizes problem-solving, accuracy, and client interaction in a fast-paced environment. A bachelor’s degree in accounting and 3+ years of ICFR/testing experience are required, with U.S.

Qualifications

• Bachelor’s Degree in Accounting or a related field from an accredited university.
• Minimum of 3 years of experience performing internal control testing, including Financial Statement Audits, OMB Circular A‑123 (Appendix A and/or C), and SOX compliance.
• Strong understanding of Internal Controls over Financial Reporting (ICFR).
• Proven ability to manage multiple priorities and meet deadlines in a fast-paced environment.
• Demonstrated experience providing client-facing support and presenting findings.
• Strong analytical, organizational, and project management skills.
• Proficiency in Microsoft Excel, Word, and PowerPoint.
• Security Clearance: Must be able to pass a basic government suitability check (US Citizenship required)

Responsibilities

• Perform internal control testing under OMB Circular A‑123 Appendix A, including risk assessments, entity-level control evaluations, and validation of CAPs.
• Lead improper payment risk assessments in accordance with Appendix C requirements.
• Develop test plans and procedures aligned to control narratives, process flows, and risk frameworks.
• Evaluate control design and operating effectiveness and document results in audit workpapers.
• Identify control deficiencies, perform root cause analysis, and support development of remediation strategies.
• Supervise and review the work of junior staff, providing coaching and quality oversight.
• Deliver client-facing presentations and briefings to communicate findings, risks, and recommendations.
• Collaborate with client stakeholders to strengthen internal control environments and improve compliance.

Skills

Client interaction

Analytical skills

Project management

Education

Bachelor’s Degree in Accounting or related field

Tools

Microsoft Excel

Microsoft Word

PowerPoint

Job description

We are looking for a motivated A‑123 Senior Consultant to join our team supporting a key Federal client’s financial management and compliance programs. In this role, you will play a critical part in strengthening internal controls and reducing improper payment risk by performing Appendix A testing and leading Appendix C assessments. You’ll work alongside experienced professionals in a collaborative, fast-paced environment that values precision, accountability, and continuous learning. This is an excellent opportunity for someone who enjoys problem-solving, client interaction, and making a direct impact on federal financial operations.

What will you do in this role:

• Perform internal control testing under OMB Circular A‑123 Appendix A, including risk assessments, entity-level control evaluations, and validation of corrective action plans (CAPs)
• Lead improper payment risk assessments in accordance with Appendix C requirements
• Develop test plans and procedures aligned to control narratives, process flows, and risk frameworks
• Evaluate control design and operating effectiveness and document results in audit workpapers
• Identify control deficiencies, perform root cause analysis, and support development of remediation strategies
• Supervise and review the work of junior staff, providing coaching and quality oversight
• Deliver client-facing presentations and briefings to communicate findings, risks, and recommendations
• Collaborate with client stakeholders to strengthen internal control environments and improve compliance
• Bachelor’s Degree in Accounting or a related field from an accredited university
• Minimum of 3 years of experience performing internal control testing, including:
  • Financial Statement Audits
  • OMB Circular A‑123 (Appendix A and/or C)
  • Sarbanes-Oxley (SOX) compliance
• Strong understanding of Internal Controls over Financial Reporting (ICFR)
• Proven ability to manage multiple priorities and meet deadlines in a fast-paced environment
• Demonstrated experience providing client-facing support and presenting findings
• Strong analytical, organizational, and project management skills
• Proficiency in Microsoft Excel, Word, and PowerPoint
• Security Clearance: Must be able to pass a basic government suitability check ( US Citizenship required )

Serving Federal Government clients, Castro & Company is a dedicated Audit, Advisory and Information Technology firm headquartered in Alexandria, Virginia. We are dedicated to helping our clients accomplish their strategic goals while providing our people with a diverse and inclusive environment to thrive and succeed. Castro & Company employees are part of a learning culture with challenging career development opportunities. We encourage teamwork and collaboration, reward excellence, and respect and value diversity.

Salary Range: $80K-$100K
Final compensation will be determined based on a range of factors, including relevant experience, education, work location, security clearance level, certifications, and other factors permitted by applicable law. Salary ranges listed reflect the Washington, DC metropolitan area.

Castro & Company is an Equal Opportunity Employer and considers all qualified applicants without regard to color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability and any other classification protected by law.