Senior Internal Auditor
Metrolinx • Toronto, Ontario • Full Time
Posted on Sat, May 2, 2026
Metrolinx is connecting communities across the Greater Golden Horseshoe. Metrolinx operates GO Transit and UP Express, as well as the PRESTO fare payment system. We are also building new and improved rapid transit, including GO Expansion, Light Rail Transit routes, and major expansions to Toronto’s subway system, to get people where they need to go, better, faster and easier. Metrolinx is an agency of the Government of Ontario.
At Metrolinx, equity, diversity and inclusion are essential to living our values of serving with passion, thinking forward and playing as a team.
This role is an in‑office position based at our 20 Bay St location. Our team is highly collaborative, and much of our work benefits from in‑person co‑creation, relationship‑building, and hands‑on partnership with leaders across the organization.
The Senior Internal Auditor has responsibility for executing work under the Information Technology and PRESTO activities in the Internal Audit annual audit plan. The position is responsible for completing control testing and preparing reports under the supervision of the Senior Manager, Internal Audit - Operations.
What will I be doing?
- Leading and participating in audits and projects (e.g., financial, operational, value for money, performance, and compliance audits) and related program reviews and risk assessments.
- Planning and performing risk assessments to determine and develop detailed objectives and scope for each assigned audit; developing process maps and documentation to provide a framework for control gap analysis and audit effort prioritization.
- Developing audit programs to document the test steps for each assigned audit; supervising and coaching less-experienced team members to develop their skills and facilitate audit completion; reviewing working papers from more junior team members.
- Performing audits in conformance with professional (IIA) and divisional standards and industry best practice, including working with co-sourced audit service providers and utilizing the IIA competency framework.
- Assisting the Sr Manager in maintaining positive working relationships with MTO’s Internal Audit Team (MTO-IA) and the OAGO; liaising between external audit groups and Metrolinx business units.
- Liaising with external auditors to facilitate their planning, design, and execution of the annual audit of financial statements (e.g., facilitates information flow, providing supporting documentation for IA projects, and attends planning and exit meetings).
- Maintaining an up-to-date knowledge of the standards and guidance included in the International Professional Practice Framework (IPPF) developed by the IIA; staying current with evolving knowledge in the field of Internal Auditing; maintaining compliance with IIA standards and its Code of Ethics.
- Building and maintaining strong relationships throughout the organization to advise management on risk management, internal control, and governance matters.
- Developing and maintaining a positive and productive working relationship with colleagues and management throughout the organization, with a 'no surprises' approach to audit work and findings.
- Focus on continuously improving tools, practices, and methodologies consistent with the IIA’s IPPF and divisional standards and the profession’s quality assurance (QA) methodology to receive high scores in independent QA reviews.
- Completion of a degree in Business Administration, Accounting, Engineering, Information Technology, or a related discipline – or a combination of education, training and experience deemed equivalent.
- Demonstrated years’ progressive experience conducting internal audits, including experience in a capital-intensive industry, professional services, or a comparable combination of progressive experience in internal and external audit (while obtaining relevant professional designation(s)).
- Certifications or Designations:
- Must become a member of the Institute of Internal Auditors after joining.
- Relevant designations are expected with priority given to auditing designations. Examples of relevant designations:
- IIA designations: Certified Internal Auditor (CIA), Certified Government Auditing Professional (CGAP), Certification in Risk Management Assurance (CRMA), and Certified Financial Services Auditor (CFSA)
- Auditing/Accounting: Chartered Professional Accountant (CPA)
- Fraud: Certified Fraud Examiner (CFE) or Certified Forensic Investigator (CFI)
- ISACA designations: Certified Information Systems Auditor (CISA), Certified in the Governance of Enterprise IT (CGEIT), and Certified in Risk and Information Systems Control (CRISC)
We invite all interested individuals to apply and encourage applications from members of equity-deserving communities, including those who identify as Indigenous, Black, racialized, women, people with disabilities, and people with diverse gender identities, expressions and sexual orientations.
Accommodation: We value the unique skills and experiences each person brings to Metrolinx and are committed to creating and maintaining an inclusive and accessible environment. We are committed to the requirements of the Accessibility for Ontarians with Disabilities Act so if you require accommodation during the hiring process, please let our Recruitment team know by contacting us at: 416-202-5601 or email hr.recruitment@metrolinx.com.
Application Process: All applicants must be legally entitled to work in Canada. Metrolinx will be using email to communicate with you for all job competitions. It is your responsibility to include an updated email address that is checked daily and accepts emails from unknown users. As we send time-sensitive correspondence, we recommend that you check your email regularly. If no response is received, we will assume you are no longer interested in pursuing the opportunity. Please be advised that a Criminal Record Check may be required of the successful candidate.
Should it be determined that any background information provided is misleading, inaccurate or incorrect, Metrolinx reserves the right to discontinue with the consideration of your application.
We thank all applicants for their interest, however, only those selected for further consideration will be contacted.
WE ARE AN EQUITABLE AND INCLUSIVE EMPLOYER.