Power System Engineering Analyst

Date: June 22, 2026

Location: Mississauga, ON – Hybrid/On-site

Requisition ID: 21139

Status: Temporary up to 12 months

Business Unit: Markets and Reliability

Grade/Band: MP2

Shift Work: No

Annual Pay Range: For standard 35-hour work week

Step 1: $97,708 to Step 10: $139,568

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 Ontario’s electricity system meets the province’s 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, it’s not just what we do—it’s who we are! 

Who we are

Our central role includes managing the provincial power grid in real-time, overseeing and evolving Ontario’s electricity market, engaging with government, municipalities and Indigenous communities, and planning for Ontario’s future electricity needs. Our employees play a key role in driving grid innovation, protecting the system from threats, advancing the province’s energy conservation programs, and forecasting and procuring the electricity resources we’ll need in the decades to come. 
This is a unionized position that falls within the Performance Validation and Modeling team within the Markets and Reliability Business unit.

What makes this role exciting

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

The power system engineering analyst assists in conducting studies, analysis and application of specialized technology the field of power systems in support of real-time operations, operations planning or planning activities.  Assist in the provision of analytical and technical support as needed for policies, operating agreements, equipment specifications, operational and outage plans and system investments.  Assist with model development, studies and analysis that:

• develop and update models, data and security applications for existing, new or modified facilities; 


• support online and off-line security model management (models, data, and security applications); and,


• support the coordination with neighboring entities on NERC, NPCC and regional market in the area of reliability matters.  

This position exists across multiple areas in Market and System Operations, with materially similar accountabilities and skill requirements. In addition to detailing common duties, this job document identifies area specific expectations that assist incumbents and managers in understanding specific expectations for that area.

What you’ll do

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

• Receive assignment from the Lead Power System Engineer, Engineering Supervisor, Engineering Manager, and/or Senior Manager in detail on specific problems related to assigned areas of work.  


• developing online and off-line development security models used by security and market software


• support the development of the real time operating plan; or,


• assisting with support of real-time operations use of operating instructions and the accuracy of security software results.

Modelling and Validation Role:

• Assist with the development of base cases to support Ontario and regional reliability studies by the IESO, participants and other external organizations


• Assist with the development and maintenance of suitable models to support the IESO’s Energy Management and Market Systems to enable the applicable real-time and day-ahead operations.


• Assist with the maintenance and support the IESO’s contingency analysis software used by off-shift and on-shift staff.


• Assist in specifying and reviewing the results of tests to confirm that facilities connected to the IESO-controlled grid satisfy the IESO’s performance requirements.  Based on the results of performance tests, investigate transmission and generation models suitable for planning and operating studies.

Common Role:

• Support IESO security, adequacy and operability obligations found in the Market Rules and in applicable NERC and NPCC reliability standards.


• Provide information gathering support the preparation and delivery of reliability compliance evidence, including work procedures, RSAWs, market manuals, and training material.


• Perform other duties as required.

In a typical day, you will support Ontario and regional reliability studies by helping develop base cases and maintaining models for the IESO’s energy management and market systems. Assist in maintaining contingency analysis tools and evaluates test results to ensure grid-connected facilities meet performance standards, while refining transmission and generation models for planning and operations.

Role Requirements

Our team consists of experts from diverse backgrounds, each bringing their unique perspectives and skills. 

To succeed in this role, you’ll need: 

• Requires engineering knowledge of electrical theory, power system analysis and control, mathematics, computers science and the like to carry out 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.  


• This knowledge is acquired through the completion of an engineering/applied sciences degree from an accredited university or by having the equivalent education.


• Must be able to obtain a professional engineering license from Professional Engineers Ontario within a reasonable period of time, with a competency in the field of electrical engineering


• Requires experience such as might be gained in the energy industry to become familiar with the general system operation, organizational structure to establish a broad base of contacts.  Requires experience to become familiar with the nature of studies and investigations carried out by the different sections and groups of the organization.  Requires further on the job experience to become familiar with methods and practices associated with the work functions.  


• A period of over 4 years and up to and including 6 years is considered necessary to gain this experience.

How We Support You

From a comprehensive total rewards program to dynamic learning and development opportunities—including job rotations to broaden your expertise—we empower you to define and shape your own success. When you join the IESO, here’s 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

July 6, 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 environment—one that values every team member’s 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. We’re proud to say we’ve been recognized as a supportive, inclusive employer. 

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