Senior Specialist Operational Assessments MTI

Date: December 2 2025

Location: Mississauga

Requisition ID: 20742

Status:Temporary

Business Unit:Markets and Reliability

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 role is a part of Operational Effectiveness team within Markets and Reliability. This is a union job.

What makes this role exciting

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

The successful candidate will be expected to lead the development and continuous improvement of Operations processes ensuring risk mitigation compliance and seamless integration of new technologies and market designs while overseeing forward market functions and operational assessments. Additionally this will include providing mentorship coordinating with stakeholders maintaining documentation and supporting cross-functional initiatives to enhance efficiency reliability and adherence to industry standards.

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:

• Lead development of appropriate processes to support Operations activities. Identify the objectives of business processes assess the risk of not meeting those objectives and identify process controls to mitigate risk as appropriate. Document process objectives tasks risks and controls in summary documentation (e.g. risk-control matrices).
• Provide guidance and mentorship to other members of the team. This may include problem resolution training and quality checks on their work.
• Work with SMEs within and outside Operations as necessary to integrate new technology/market design into IESO Operations by:
  • Determining different stakeholders impacted and coordinate development of appropriate processes tools and procedures to enable seamless integration
  • Managing risks by developing proper controls and monitoring to ensure that processes/tools are functioning as designed
• Liaise with Operations staff to understand issues with the performance of existing operational tools and follow-up with relevant groups including Information Technology (IT) to facilitate their resolution.
• Maintain a current knowledge of Operations processes (including but not limited to day-ahead scheduling control room procedures real-time scheduling) for the purposes of interpreting and assessing the priority of issues regarding Operations tools and processes.
• Oversee execution of forward market functions in a timely manner and track their performance by
• Coordinating with different business units within operations to conduct assessment of forward market participation requests preparation of required inputs for forward market execution and reporting of results
• Developing proper monitoring including tools to assess validity of results against the market objectives
• Contribute to lead and manage internal and external working groups and provide Operations perspective by participating in various stakeholder engagements that impact the operation of the IESO administered markets.
• Assess the effectiveness of new programs and potential solutions to address operational and market inefficiencies.
• Support as required specialized system and market efficiency studies
• Provide support as required to other business units agencies and market participants to fulfill strategic plans.
• Ensure proper development of end user computing tools as necessary to support Operations tasks including operation of the IESO controlled grid and operation of the IESO administered markets.
• Lead assessment of operational events for their compliance with legislation regulations and standards including the market rules and market manuals NERC standards and NPCC criteria Where needed conduct root cause analysis to develop appropriate mitigation plans to contain IESOs compliance risk exposure.
• Lead ex-post and ex-ante operational assessments to identify operating and ancillary services needs to mitigate any reliability and operability risks. Where required assist appropriate business units in procuring these services to meet reliability and operability needs.
• On an on-going basis assist process owners/stewards in reviewing the effectiveness of existing Operations processes. Recommend develop and implement effectiveness and efficiency improvements as necessary.
• Work with subject matter experts from different business units to produce business process documentations including procedural instructions for Operations activities. Ensure that the documentation is consistent with NERC standards NPCC criteria the market rules relevant government regulations and other industry standards and is consistent with IESO processes for managing controlled documents. Ensure that the documentation is appropriate for the targeted audience (e.g. internal vs market manuals) and contains the appropriate level of detail.
• Support and as necessary lead maintaining operating agreements with transmitters and interconnection agreements with our neighbours
• Provide guidance to other business units on market operations including but not limited to clarifying policies and principles in making operational decisions.
• Perform other duties as required.

In a typical day you will be primarily responsible for the daily monitoring of the power system and market operation including any required follow up activities such as reporting procedure updates and training. It is also responsible for the reliable integration of new market processes and technologies into operations providing support to key IESO projects that support the IESOs enterprise objectives including capacity and resource acquisition and enable resources to deliver on capacity/participate in the IESO-administered addition this role leads the execution of forward markets including the Transmission Rights Market and capacity exports that help to ensure cost-effective system reliability.

Role Requirements

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

Education:

• Requires an engineering knowledge of electrical theory power system analysis and control mathematics computer science economics and other specialty related courses to undertake engineering economic or analytical studies related to the management and control of the bulk power system.
• Requires knowledge of technical writing to prepare effective reports and data analysis to conduct quantitative assessments.
• This knowledge is normally acquired either through the successful completion of a four-year university education in an appropriate field/discipline or by having the equivalent education.

Experience:

• Requires prior exposure to the overall power system operation.
• Requires an overall understanding of the IESO-Administered Markets their operation and the characteristic of the interconnected systems to support the activities of the IESO.
• Requires excellent facility in written and oral communications including the ability to prepare effective documentation recommendations and reports.
• Requires experience to develop a good overall understanding of system and market operation practices and procedures including legislation regulatory standards resource utilization and system control orders and an ability to undertake complex market or system event analysis.
• Requires working with multiple stakeholders including customers and good judgement in dealing with multiple priorities.
• Requires computer experience including exposure to statistical and database software desktop software applications computer data conversion various PC-based query and calculation tools and computer system interfaces.
• Requires experience in applying testing and considering the merits of alternatives.
• Requires good customer service skills.

Experience will be related to the fields of:

• The IESO Administered Markets and interconnected power system operations
• reliability and operability assessment
• NERC NPCC and IESO Market Rules compliance assessments

Background experience will include:

• Electrical engineering design concepts as they relate to the functions and characteristics of power system components
• Familiarity with power system operation practices and policies
• Familiarity with energy and forward market operations practices policies and Market Rules
• Competitive market operations
• Particulars of power system operation including technical features of generation and transmission equipment and facilities system interconnection

A period of over 8 years up to and including 10 years is considered necessary to gain this experience.

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

December 15 2025.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 will be transitioning to a 3-day in-office work week effective January 2026. 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.