Executive Assistant

Date: September 1 2026

Location: Mississauga or Toronto ON Hybrid

Requisition ID: 21245

Status:Regular

Business Unit:Information and Technology Services and Power System Development

Grade/Band: Band 6B

Shift Work: No

Annual Pay Range: For standard 35-hour work week
$75290 - $94070

The successful placement within the range will depend on qualifications relevant work experience and other applicable considerations.

Why join us

The IESO is committed to ensuring Ontarios electricity system meets the provinces needs today and into the future. We are charged with purpose delivering reliable affordable and sustainable electricity for homes businesses and communities across the province. We are energized to grow embracing opportunities to shape the future of a dynamic and evolving energy sector while advancing our careers. We are powered by teamwork supported by diverse and passionate colleagues who foster respect celebrate successes and thrive on shared achievements. At the IESO its not just what we doits who we are!

Who we are

Our central role includes managing the provincial power grid in real-time overseeing and evolving Ontarios electricity market engaging with government municipalities and Indigenous communities and planning for Ontarios future electricity needs. Our employees play a key role in driving grid innovation protecting the system from threats advancing the provinces energy conservation programs and forecasting and procuring the electricity resources well need in the decades to come.

This posting represents two non-unionized vacancies: one in Information and Technology Services (ITS) based at our Mississauga office and one in Power System Development (PSD) based at our Toronto office. Applicants are encouraged to indicate their preferred location when submitting their application.

What makes this role exciting

The energy sector is rapidly evolving offering exciting new opportunities for those who want to make a difference.

As a trusted partner to senior leadership the Executive Assistant provides high-quality administrative and operational support that enables leaders to focus on strategic priorities and business objectives. This role supports Senior Directors by managing a broad range of executive support activities including scheduling and logistics correspondence document preparation meeting coordination and project execution.

The Executive Assistant builds strong relationships across the organization exercises sound judgment and handles confidential information with a high degree of discretion. The ideal candidate is highly organized adaptable and resourceful with the ability to anticipate needs manage competing priorities and contribute to the smooth and efficient operation of the leadership team.

What youll do

In this role youll make a meaningful impact by contributing to the IESO team and supporting the electricity needs of the province through:

Support for the Senior Director and (as applicable) SLT members

• High-level support and assistance to the Senior Director including calendar management prioritization of meetings and deliverables coordination of deliverables with direct reports establishing schedules collaborating with other Executive Assistants on corporate processes
• Prepare various confidential or classified documents on behalf of the Senior Director including letters instructions to direct reports and service providers and meeting summaries
• Anticipate and initiate appropriate action to conserve time commitments of the Senior Director; prioritize work demands and assignments from various staff
• Support inbox management by organizing emails flagging actions items and tracking deadlines
• Make travel arrangements for meetings and conferences
• Liaise with external facility providers for off-site meetings

Preparation of correspondence and reports including information of a highly confidential nature

• Communicate corporate or business unit priorities information or data to other members of the business unit management team the business unit or other stakeholders
• Ensure all correspondence adheres to corporate communication standards
• Route documents for signature and approval (e.g. contracts; agreements reports; directives; policies; instructions; budgets; personnel and labour relations matters)
• Research issues both proactively and on an as needed basis; gather and summarize data statistics or information
• Process inquiries from employees members of the public or external organizations
• Provide input and take minutes of business unit and committee meetings; track action items as required; organize meeting agendas

Role Requirements

Our team consists of experts from diverse backgrounds each bringing their unique perspectives and skills.
To succeed in this role youll need:

• Post-secondary education with a diploma in Business Administration or an equivalent combination of education training and experience
• 8-10 years executive office support experience required
• Knowledge of board governance principles and processes
• Strong skills in Microsoft Office and Copilot
• Demonstrated professionalism diplomacy and tact when supporting and interacting with senior leadership and Board members
• Strong planning time management and coordinating skills to organize priorities and workflow
• Experience interpreting and applying standard business practices procedures and departmental policies.
• Proven ability to manage and organize highly confidential and sensitive information.
• Experience establishing and implementing administrative procedures and electronic document management systems.
• Highly developed oral and written communication skills
• Creative thinking sound judgement and solid analytical skills required to manage unique confidential and/or time sensitive issues
• High degree tact and discretion as needed when interacting with IESO Board Members government and industry agencies IESO senior leadership and staff
• Proven track record of achieving results through collaboration with stakeholders in a complex business environment without direct authority
• Demonstrated ability to develop and maintain effective relationships both within the organization and with external stakeholders including Board members
• Proven people skills and intra and inter department team-building capability
• Highly proactive with the ability to anticipate problems and take action to mitigate them
• Ability to recognize changing priorities and adjust work plans to meet expectations
• Demonstrated ability to work independently

How We Support You

From a comprehensive total rewards program to dynamic learning and development opportunitiesincluding job rotations to broaden your expertisewe empower you to define and shape your own success. When you join the IESO heres what you can expect:

• Best-in-class benefits and long-term support in the form of a defined benefit pension plan.
• Work in a dynamic and evolving sector that offers exciting opportunities and the chance to explore new career paths.
• Leadership that values meaningful discussions welcomes feedback and prioritizes career development.
• A strong inclusive culture and a collaborative team environment with a shared passion for impactful work.
• Compensation packages that are regularly reviewed to remain competitive and to best accommodate the diverse needs of our employees.

Deadline

September 22 2026

For future reference please save a copy of the job posting as it will no longer be available once the posting closes.

Thank you for your interest in a career at the IESO. Only candidates selected for an interview will be contacted. Please note that the successful candidate must be legally eligible to work in Canada and will be subject to applicable background checks.

IESO will not conduct interviews or offer positions via online text chat or social media platforms. We will not gather personal information directly from candidates or potential candidates. Selected candidates will work with our Talent Acquisition team to ensure their application is processed.

The IESO currently has a 3-day in-office work week for applicable roles. Over the course of 2026 the IESO will advance plans to acquire additional office space to accommodate more in-office time. While the timeline for moving to a full 5-day in-office model has not yet been established we are committed to keeping employees and candidates informed as plans progress and give them as much advance notice as possible to prepare for any changes.

We believe in opportunities for everyone.

At the IESO we know that achieving great results depends on embracing diversity by attracting developing and retaining people from a wide variety of backgrounds. We do this by ensuring our recruitment and advancement policies are fair and equitable and by creating an accessible and inclusive environmentone that values every team members unique skills and experiences and ensures they have the support they need to achieve their potential. If you require accommodation during the recruitment process please let us know. Were proud to say weve been recognized as a supportive inclusive employer.

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