Supervisor Programs and Ancillary Services Management

Date: February 5 2026

Location:Toronto ON Hybrid

Requisition ID: 20873

Status:Temporary

Business Unit:Power System Development

Grade/Band: MP6

Annual Pay Range: For standard 35-hour work week

The successful candidate will be placed at the appropriate step within the salary grade/band based on relevant years of 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 is a unionized position that falls within the Power System Development Department.

What makes this role exciting

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

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:

• Ancillary service portfolio oversight overseeing current contracted suppliers to ensure they are meeting their contractual obligations including tracking outage activity force majeure requests and periodic testing requirements such as annual black start tests.
• Ancillary service procurement design oversee the design of any ancillary service procurement mechanisms strategies and processes appropriate for the type of procurement (standard offer auction competitive RFP negotiation) and the type of ancillary service being sought.

In a typical day you will:

• Lead the development of procurement documents including program rules request for proposals and contracts. Help manage internal and external legal teams in drafting documents
• Implement and execute procurement processes ensuring that all obligations are fulfilled in accordance with procurement/contract requirements
• Lead contract negotiations with counterparties ensuring IESO and rate payer interests are upheld and IESOs reputation and professionalism are maintained
• Remain flexible and available to assist with other projects or procurement activities and perform other duties as required.

Role Requirements

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

• 4-year University Degree in engineering or business (commerce or economics) is preferred; environmental science political science and public policy related degrees with relevant experience will also be considered; post-graduate degree an asset
• 1012 years of relevant work experience including the period of adjustment on the job itself
• Demonstrable knowledge of the technical aspects of power generation and transmission including traditional grid-connected resources emerging technologies and distributed energy resources
• Demonstrable knowledge of the Ontario electricity sector the electricity market and the underlying regulatory environment is essential
• Demonstrable project management knowledge and experience
• Demonstrable understanding of policy matters related to energy planning and procurement
• Understanding of the types of ancillary services and the roles they play in helping to maintain reliability
• Experience undertaking public sector and/or infrastructure procurements an asset
• Knowledge of financial matters underpinning power plant operation; financial modelling capability an asset
• Knowledge of IESO Market Rules and Market Manuals an asset
• Negotiating experience an asset
• Database/spreadsheet knowledge and skills (Excel required)
• Understanding of Microsoft Project an asset
• PMP certification an asset
• Strong writing acumen and the ability to generate high quality reports
• Strong planning and coordinating skills to organize own priorities and workflow
• Ability to work effectively with end user and systems management staff

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

February 19 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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