Lead high-impact engagements with Ontario's Internal Audit Division!

About the job

Consider this rewarding opportunity with the Treasury Board Secretariat's Ontario Internal Audit Division. Your expertise will be leveraged to provide value-added assurance and advisory services, covering governance, risk management, business processes, operational effectiveness, and internal controls. This is a unique opportunity to make a difference for Ontarians and support key government priorities!

Note

- This position requires the ability to travel within Ontario, including periodic, limited overnight travel.

What we offer:

Join a team that works at the intersection of public accountability and major infrastructure delivery. From transit and transportation projects to other major government infrastructure investments, our work provides a unique window into some of the province's most significant initiatives. As a Senior Internal Auditor in the Capital Audit Branch (CAB), you will undertake complex audits that inform senior leadership, strengthen public sector accountability, and support the effective delivery of government priorities.

We are a diverse and engaged team of professionals who are passionate about delivering high-quality work that makes a meaningful impact across government. CAB is recognized for its strong leadership, collaborative culture, and trusted relationships with clients. Our work is challenging, interesting, and rewarding, and we believe a positive workplace matters.

We support one another, celebrate successes, and make time for team-building and fun, creating an environment where people genuinely enjoy coming to work.

Why join the Ontario Public Service?

The Ontario Public Service (OPS) is one of Ontario's largest and most diverse employers, offering meaningful work, opportunities for growth, and the chance to make a difference for people across the province. When you join the OPS, you will benefit from:

- a competitive compensation package, including a defined benefit pension plan and comprehensive medical, dental, and other health benefits
- salary progression and merit-based pay opportunities
- opportunities for flexible working arrangements that support work-life balance, including flexible schedule and compressed work week schedules
- representation through AMAPCEO, one of the largest bargaining agents in the OPS
- diverse career pathways across ministries, programs, and functions
- learning and development opportunities, including training, mentorship, and leadership development programs
- a modern, inclusive, accessible, and collaborative work environment
- the opportunity to contribute to initiatives that have a meaningful impact on Ontarians

What you bring to the team

Auditing and accounting expertise

You have

- comprehensive knowledge of auditing standards, methodologies, and best practices (e.g. Global Internal Audit Standards), and accounting principles,



including Public Sector Accounting Standards
- experience planning and executing audits, including determining objectives, scope, and testing approaches
- the ability to assess complex business processes, evaluate internal controls, and identify opportunities to strengthen governance, risk management, and accountability
- strong professional judgment and the ability to ensure audit activities and recommendations align with professional standards, organizational policies, and applicable legislation

You can

- plan, lead, and execute complex audit engagements from planning through reporting
- assess the adequacy and effectiveness of governance, risk management, internal controls, and financial management processes
- evaluate financial and operational information to identify risks, trends, control weaknesses, and opportunities for improvement
- develop risk-based audit approaches and testing strategies that are appropriate to the nature and complexity of the engagement
- exercise sound professional judgment to formulate evidence-based conclusions and practical recommendations

Risk assessment skills

You have

- comprehensive knowledge of risk management frameworks, principles, and methodologies (e.g. COSO, COBIT, Enterprise Risk Management, and Risk Based Auditing)
- experience assessing strategic, operational, financial, compliance, and project-related risks in complex organizational environments

You can

- identify, assess, monitor, and communicate risks and control weaknesses to senior management and stakeholders
- develop practical, risk-based recommendations that support informed decision-making and effective mitigation strategies
- design and apply risk assessment methodologies, quality assurance processes, and audit tools to address organizational needs

Project management and leadership skills

You have demonstrated

- project management and team leadership skills to successfully deliver complex audit and advisory engagements
- experience managing multiple concurrent projects, stakeholders, and priorities in a fast-paced setting
- experience coaching, mentoring, and supporting the development of colleagues and team members

You can

- effectively manage competing demands, adapt to changing priorities, and deliver quality results within established timelines and budgets
- coordinate and oversee the work of external consultants, subject matter experts, and project resources
- build cooperative relationships and foster a positive, high-performing team environment

Analytical skills





You have demonstrated skills to:

- analyze complex business processes, governance structures, and control environments to identify risks, root causes, and opportunities for improvement
- research, synthesize, and evaluate information from multiple sources to develop meaningful insights and practical recommendations
- collect, extract, and analyze data using spreadsheets, data analytics tools, and audit software
- apply critical thinking and professional skepticism when assessing evidence, drawing conclusions, and supporting audit findings
- leverage technology and digital tools, including Microsoft Office applications and data analytics software, to enhance audit effectiveness and efficiency

Communication and interpersonal skills

You have demonstrated experience

- preparing and presenting clear, concise, and impactful audit reports, briefing materials, and recommendations for senior management and executive audiences
- communicating complex issues, risks, and technical concepts in a manner that is understandable and actionable
- advising senior leaders on governance, risk management, internal controls, and process improvement opportunities
- interviewing stakeholders, facilitating discussions, and building consensus on audit observations and corrective actions
- establishing and maintaining effective working relationships with clients, stakeholders, and colleagues at all organizational levels
- using written, verbal, and presentation skills to influence decision-making and support positive organizational change

Additional information

Address:

- 1 English Temporary, duration up to 12 months, 301 St Paul St, St Catharines

Posted on: Tuesday, September 8, 2026

How to apply:

1. You must apply online by visiting www.ontario.ca/careers. You must enter the job id number in the Job ID search field to locate the job ad.
2. Your cover letter and resume combined should not exceed five (5) pages. For tips and tools on how to write a concise cover letter and resume, review the Writing a Cover Letter and Resume: Tips, Tools and Resources.
3. Customize your cover letter and resume to the qualifications listed on the job ad. Using concrete examples, you must show how you demonstrated the requirements for this job. We rely on the information you provide to us.
4. If you require a disability related accommodation in order to participate in the recruitment process, please Contact Us to provide your contact information. Recruitment services team will contact you within 48 hours.

Remember:

The deadline to apply is Tuesday, September 22, 2026 11:59 pm EDT. Late applications will not be accepted.

We thank you for your interest. Only those selected for further screening or an interview will be contacted.

The Ontario Public Service is an inclusive employer.

Accommodation is available under the Ontario's Human Rights Code .

📌 Senior Internal Auditor (St. Catharines)
🏢 Treasury Board Secretariat | Secrétariat du Conseil du Trésor
📍 St. Catharines