Specialist, Market Analysis Models

Date
October 24, 2025

Location
Mississauga - Hybrid

Requisition ID
20450

Status
Temporary

Business Unit
Markets and Reliability

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 role is a part of the Enabling Resources Program (ERP) within the Markets and Reliability business unit. This job is unionized.

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 directly support ERP updates to the dispatch scheduling and optimization (DSO) system and supporting systems to ensure the efficient dispatch and operation of the grid. They will also support creating clarity on these changes within various market rules, manuals, and supporting materials needed to engage with the sector and govern requirements.

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:

• Supporting and providing technical advice on market design and solution development efforts of ERP to produce more efficient market outcomes.
• Performing in-depth analysis of the dispatch, scheduling and optimization algorithms that drive the IESO's energy markets (DAM, PD and RT) to derive enhancements to support ERP resources.
• Designing and executing studies to assess algorithmic behaviour, pricing outcomes, constraint modeling, and system performance under various market outcomes.
• Interpreting technical documentation for various audiences to ensure understanding and alignment with market design requirements.

In a typical day, you will work with solution vendors or other internal IESO subject matter experts to ensure solutions produce efficient market outcomes. This includes developing algorithms that will be implemented by the solution vendors, verifying proposals from vendors, as well as supporting the collection or producing test data to verify acceptable outcomes of solutions.

Right now, this position builds on the recently implemented foundation of the Market Renewal Project where a major revamp was achieved to support electricity market best practices. The specialist will create further enhancements to the market for emerging resources and puts you at the forefront to ensuring these resources are being utilized in an effective and efficient manner.

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

Education
To succeed in this role, you'll need:

• Knowledge of economics, engineering, operations research or mathematics to conduct market modeling and analytical studies related to the energy industry and the electricity market.
• This knowledge is considered to be normally acquired either through the successful completion of four years university education in the appropriate field, or by having the equivalent experience.

Experience

• Deep understanding of the design and operation of the IESO-administered market, with particular emphasis on the market calculation engine.
• Considerable understanding of developing mathematical models, such as objective functions and constraints, for resource dispatch and pricing in wholesale electricity market.
• Communication skills and experience in building relationships and strong interpersonal skills to facilitate meetings and present information, creating mutual understanding.
• Various Computer application experience including exposure to modeling, optimization mathematics, and desktop software applications
• A period of 6 years and up to 8 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.
• A commitment to flexibility as we currently support a hybrid model where applicable, that supports a blend of remote and in-office work based on business needs. Participating employees typically work in-office a minimum of four days and work remotely up to six days over a two-week period with a goal of maximizing in-office time through the use of established team days.
• 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
November 7, 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.

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.