Senior Internal Auditor — Data-Driven, Risk & IT Assurance

Cass Information Systems; St. Louis (MO); On-site; USD 90,000 - 130,000; Full time

Job summary

Cass Information Systems is seeking an experienced internal auditor to investigate and report on accounting, financial, and operational processes. You will conduct risk-based audits aligned with ERM, plan engagements, and deliver clear findings.

You will collaborate with IT, cybersecurity, and compliance teams to assess risks and drive improvements, while mentoring junior staff and staying current with regulatory requirements.

Qualifications

• Bachelor's degree in accounting, finance, or business-related field.
• 4–7 years of experience in public accounting, internal audit, or similar field.
• CPA or CIA certification required; CISA preferred.
• Knowledge of GAAP and the COSO Internal Control Framework.
• Experience working with external auditors and vendors to support the Internal Audit Plan.

Responsibilities

• Independently investigates, analyzes, and prepares reports on effectiveness and soundness of accounting, financial, information system, and other activities.
• Executes audits using a risk-based approach aligned with enterprise risk management (ERM).
• Plans objectives, scope, timing, contacts, and deliverables for internal audit engagements.
• Prepares clear, concise written communications for internal and external personnel.
• Leads data analysis initiatives, including requirements gathering, data validation, and analysis execution.
• Partners with IT, cybersecurity, and compliance to assess technology, privacy, and information security risks.
• Mentors, coaches, and develops other auditors to foster technical growth.
• Monitors regulatory requirements and supports audit readiness as needed.

Skills

Analytical thinking

Strong communication

GAAP knowledge

COSO framework

Audit reporting

Mentoring

Education

Bachelor's degree in accounting, finance, or business

Job description

Cass Information Systems is seeking an experienced internal auditor to investigate and report on accounting, financial, and operational processes. You will conduct risk-based audits aligned with ERM, plan engagements, and deliver clear findings.

You will collaborate with IT, cybersecurity, and compliance teams to assess risks and drive improvements, while mentoring junior staff and staying current with regulatory requirements.