Algorithm Senior Specialist Solutions

Date: January 14, 2026

Location: Mississauga, ON – Hybrid

Requisition ID: 20829

Status: Regular

Business Unit: Information and Technology Services

Grade/Band: MP5

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 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…

• This role is part of the I&TS department, supporting the IESO’s energy market solutions. It plays a key role in advancing and maintaining the optimization engine and deepening the IESO’s algorithmic capabilities that underpin efficient and reliable market operations.
• Information & Technology Services - unionized

What makes this role exciting

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

• Provide leadership and technical computer algorithm support for the design and life cycle management of information systems/tools to ensure efficient operation of the IESO Administered Markets and reliable operation of the electrical system (IESO controlled grid). Advise projects that initiate technical direction or that relates to data requirements, system design, computing techniques, software coding, systems integration, research and training. Maintain client satisfaction and cooperative relations with technical staff, Identify the potential advantages in revising existing products/services. Provide consulting support to clients and internal staff in search of solutions.

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:

• Develop integrated and complex advanced computer based information solutions for business and operations processes for to the reliable operation of the power system and for other administrative needs of IESO Administered Markets.  Undertake studies for the analysis of customer betterments, the formation of functional specifications and the development of a complete information solutions (including impacting areas of software, hardware, communications, or business processes as they relate to individual contributors or project management).
• Advise on the design of the optimal computing algorithm considering solution performance & precision, input data sparsity & quality and feasibility etc.
• Manage the evolution of existing complex advanced information systems and tools related to the market operation, supply, security and settlement services related to the management of the power system by devising/implementing enhancements to provide additional functionality, improved reliability and/or maintainability and problem correction.
• Command a thorough knowledge of internal/external customers' business.  Develop a close relationship with customers to identify potential improvements to existing systems and to identify new or innovative information system requirements.  Provide extensive consultation to customers.
• Identify opportunities for information solutions that will provide substantial benefits for customers. Address the total solution in terms of communications, data sources, software tools, integration with existing functions, user interfaces, algorithms etc. 

In a typical day, you will

• Undertake the management of projects for the development and expansion of complex/advanced information systems and tools.  Provide technical leadership to such projects and/or teams. 
• Contribute in the development of strategic plans and standards. 
• Act as a consultant or mentor to others to advance their learning and to facilitate their problem solving skills within their respective areas of expertise.
• 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, you’ll need: 

Education:

• Requires a strong academic knowledge of computer science and associated subjects, including a strong theoretical knowledge pertinent to the specialist areas of the technical or business operations of the electricity market and administration processes related to the power system delivery.  Requires communication skills, including report or business presentation skills.
• This knowledge is considered to be normally acquired either through the successful completion of a four-year University education in the appropriate field/discipline or by having the equivalent education.
   

Experience:

• Requires significant exposure to the overall power system operations and electricity market operation.  Requires specific experience related to specialties of the group.  Exposure will be related to the fields of:
  • utilization of generation resources, including interconnections,      
  • secure operation of bulk power system,
  • reliability,
  • means of operation, including control equipment, staffing techniques and procedures for the practice of operating,
  • market entry, maintenance and exit
  • bidding and market information management
  • market scheduling and dispatch,
  • metering and market settlement,
  • billing and market funds administration,
  • prudential risk management,
  • forecast and assessment; and,
  • market administration such as dispute resolution, waivers, compliance and surveillance.  
• Expertise can be in the areas of:  
  • design concepts as they relate to the functions and characteristics of power system components,
  • analytical studies and the application of computer techniques to solving power system problems (e.g. State Estimator, Power Flow), forecasting problems (e.g. demand forecasting), energy bidding (e.g. Day Ahead Optimization, Capacity & Transmission rights auction).
  • familiarity with power system operation, practices and policies, 
  • district operating and system requirements,
  • concepts of power system operation including technical features of equipment and facilities, high-tension transmission, system interconnection and methods of attaining efficiency in power production and interchange between systems,
  • familiarity with the Market Rules,
  • design concepts for market scheduling and dispatch algorithm and equations,
  • familiarity with market and internal bid-to-bill business processes and procedures, (9) design concept for financial risk management at the IESO administered market level; and,
  • familiarity with various market administration processes and procedures.
• A period of over eight years, up to and including ten 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: January 28, 2026 at 11:59PM

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 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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