Senior Internal Auditor

Job Description

Senior Internal Auditor Marketing Statement:

The Washington Metropolitan Area Transit Authority is seeking a highly accomplished Senior Internal Auditor to serve as a strategic advisor in strengthening governance, risk management, compliance, and internal controls across one of the nation's largest public transportation systems. As a Senior Internal Auditor at WMATA, a successful candidate will lead complex audits, advisory engagements, risk assessments, and data-driven reviews aligned with Global Internal Audit Standards and COSO frameworks. Working closely with senior leadership, managers, and stakeholders across key business functions, you will identify risks, evaluate processes, and recommend practical solutions that enhance accountability, transparency, and performance. Leveraging expertise in audit, compliance, enterprise risk management, corrective action plans, and data analytics, you will transform results into actionable insights that improve operations, support strategic objectives, strengthen compliance, and reinforce public trust. Join WMATA and help advance a culture of integrity, accountability, and continuous improvement.

Job Summary

The Senior Internal Auditor (Specific Functional Area) leads and executes complex audit, advisory, compliance, and/or data analytics engagements that enhance governance, risk management, and internal controls. Operating under the Global Internal Audit Standards? issued by the Institute of Internal Auditors (IIA), this role ensures services are executed with professionalism, integrity, and alignment to audit standards.

As a strategic partner, the incumbent builds trust, fosters communication, and delivers insights to support decisions. Responsibilities include auditing financial, operational, compliance, and contractual areas; presenting findings; and confirming corrective actions. The role requires analytical skill, sound judgment, and discretion, using root-cause analysis and data analytics to identify gaps and develop risk-based solutions. Visual reports highlight key risks, promote transparency, and reinforce the internal audit's role as a collaborative driver of improvement. The Senior Internal Auditor position is a progressive role from the Internal Auditor position.

Principal Job Duties

• The Senior Internal Auditor will perform work under one of the following disciplines and support cross-functional areas within the Audit & Compliance department based on work assigned (Senior Risk Analyst, Senior Compliance Analyst, or Senior Data Analyst).
• Internal Audit Services - Execution
• Leads and conducts complex audits across financial, operational, compliance, and contractual areas, including support functions such as Budget, Finance, Human Resources, Operations, and Procurement.
• Applies risk-based planning, control testing, process flowcharting, current and future state processes, and fieldwork to evaluate the effectiveness of internal controls and identify opportunities for improvement.
• Integrates data analytics into audit engagements by defining objectives, performing targeted analyses on high-risk transactions, reporting results with clarity, and documenting the process to enhance audit transparency and repeatability.
• Prepares comprehensive audit reports and summaries that clearly communicate procedures performed, results achieved, and data-driven insights. Develop practical, risk-informed recommendations and monitor the implementation of corrective actions through follow-up reviews.
• Conducts root-cause analysis on audit findings, key risk indicators, and underperforming metrics, documenting impacted business processes and recommending sustainable solutions. Perform rigorous data quality checks to ensure the accuracy, consistency, and reliability of data used in risk assurance and advisory activities.
• Risk Advisory & Client Engagement
• Serves as a trusted advisor to business units and executive leadership by identifying emerging risks, clarifying operational challenges, and facilitating discussions that drive process improvement and strengthen internal controls.
• Leverages risk and performance data to evaluate progress toward strategic goals, preparing internal reports that promote transparency, accountability, and informed decision-making.
• Responds to audit and advisory requests with professionalism and timeliness, while supporting enterprise risk management and contributing to cross-functional compliance initiatives aligned with organizational objectives.
• Standards, Compliance & Quality
• Ensures internal audit activities consistently align with the Global Internal Audit Standards?, internal policies, and applicable regulatory requirements, while maintaining up-to-date knowledge of laws and regulations relevant to WMATA's operations.
• Supports external audit coordination and contributes to the overall success of the Audit & Compliance function through effective collaboration and alignment with professional standards.
• Identifies