Senior Internal Auditor

Bi-State Development • St. Louis, Missouri • Full Time • $84,750–$113,000 / year

Posted on Sat, Sep 19, 2026

Sr. Internal Auditor

Headquarters Full Time 84,750.00 - 113,000.00 (Annually)

Benefits

Let us support your well-being and professional growth while making a difference!

Job Summary

The Senior Internal Auditor performs advanced professional internal audit work involving audits of greater-than-normal complexity. This position is responsible for examining and evaluating management activities to ensure the reliability and integrity of information, compliance with policies, procedures, laws, and regulations, the safeguarding of Agency assets, and the economical and efficient use of resources. This role also supports the achievement of established goals and management objectives through independent analysis, evaluation, and recommendations.

Job Responsibilities

• Performs or leads audits, reviews, investigations, management studies, and other internal control–related activities as assigned.
• Ensures audit engagements are completed within established budget and time constraints.
• Develops audit programs that provide effective and comprehensive audit coverage.
• Conducts entrance and exit conferences to clarify audit objectives and review findings, recommendations, and auditee responses.
• Collects, analyzes, and evaluates data related to accounting practices, financial reporting, internal controls, and program operations to assess alignment with policies and procedures.
• Identifies and documents root causes of issues to determine cause‑and‑effect relationships.
• Develops recommendations to enhance operational efficiency, strengthen internal controls, and improve compliance.
• Performs follow‑up reviews to assess the effectiveness of corrective actions and implemented recommendations.
• Conducts fieldwork in a professional, competent, and well‑documented manner.
• Prepares complete and accurate workpapers that provide evidential support for findings and recommendations.
• Prepares and/or reviews detailed audit reports that clearly present findings, recommendations, and auditee responses.
• Conducts special investigations involving sensitive or confidential matters with discretion and professionalism.
• Identifies and recommends process improvements to enhance audit efficiency and support the Internal Audit Department’s audit plan.
• Performs research on audit practices and public transportation industry issues to remain informed on developments affecting the Agency.
• Assists external auditors with work related to the Agency’s annual audit.

Knowledge, Skills, and Abilities

• Thorough knowledge of modern management theory and practice, with emphasis on internal controls and information systems controls.
• Knowledge of governmental internal auditing standards and practices, including Government Auditing Standards (Yellow Book), OMB Circular A‑133, IIA Professional Standards, and FTA Transit Rail Safety and Security Audit requirements.
• Knowledge of governmental and non‑profit fund accounting.
• Knowledge of forensic and investigative accounting techniques.
• Proficiency with Oracle, Kronos, ACL, Microsoft Word, Excel, Access, and PowerPoint, including the ability to produce statistical analyses, audit reports, and presentations.
• Ability to objectively analyze Agency functions, policies, and procedures.
• Strong written and oral communication skills, including the ability to prepare clear audit reports and present findings to management.
• Ability to work nights, weekends, holidays, and special events as required.
• Ability to work independently or collaboratively as part of a team.
• Ability to serve employees, management, and the public with honesty and integrity in accordance with the Agency’s mission and policies.
• Ability to establish and maintain effective working relationships with coworkers, elected and appointed officials, the public, and individuals from diverse backgrounds.
• Ability to instruct and train others in audit techniques.

Work Environment

• Work is performed primarily in a professional office setting with regular use of computers and standard office equipment.
• Occasional travel to Agency facilities, meetings, or audit locations may be required.
• Occasional evening, weekend, or holiday work may be necessary based on audit schedules, operational needs, or investigative requirements.
• Hybrid or remote work may be available in accordance with Agency policies (if applicable).

Physical Abilities

• Ability to work at a computer for extended periods.
• Ability to move throughout office buildings, meeting spaces, and audit locations as needed.
• Ability to lift, carry, or move files, documents, or equipment up to 20 pounds.
• Ability to sit, stand, reach, and perform routine office tasks on a regular basis.
• Regular and reliable attendance is an essential function of the position.

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Compensation:

84,750.00 - 113,000.00 (Annually)

Employment Type:

Full Time

Location:

Headquarters

Education:

Minimum - 4 year/bachelor degree Preferred - Graduate Degree
Accounting, business administration, public administration, or related field

Experience:

Minimum - 5 years
Related professional experience governmental auditing experience preferred

Certifications & Licenses:

Required - Certified Public Accountant (CPA), Certified Internal Auditor (CIA), Certified Information Systems Auditor (CISA), Certified Government Auditing Professional (CGAP), Certified Fraud Examiner (CFE), or another relevant, nationally recognized auditing or accounting credential

Equal Employment Opportunity (EEO)

Bi-State Development is proud to be an Equal Opportunity Employer.

Compensation Disclosure

Bi-State Development is committed to ensuring all employees are compensated fairly. The salary range provided reflects our current expectations for this position. However, final base salary or offer may vary depending on several factors, including skills, qualifications, experience, business needs, and budgetary considerations.

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