Specialist Solutions

Date: February 19, 2026

Location: Mississauga, ON – Hybrid/On-site

Requisition ID: 20888

Status: Temporary, Up to 24-months

Business Unit: Information and Technology Services

Grade/Band: MP4

Shift Work: N/A

Annual Pay Range: For standard 35-hour work week

Pay Range: $111,072.00 - $158,704.00

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 Market Ops & Forecast Systems Department in the Information and Technology Services 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.

• Provide life cycle management of information technology solutions to the core components of IESO business related to  operating the IESO Administered Markets, providing reliable operation of the electrical system (IESO controlled grid), and other corporate 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:

• Develop and test integrated IT solutions for business and operations processes supporting grid reliability and market administration.
• Conduct analysis of customer requirements and produce functional specifications.
• Oversee the evolution and enhancement of systems related to market operations and reliability services.
• Support and participate in projects that enhance existing systems or deliver new solutions by providing technical expertise, solution evaluation, and implementation support.
• Create solution design alternatives that meet business and technical requirements, ensuring alignment with architectural standards and adherence to the full SDLC process.
• Assess legacy monolithic applications and support their redesign toward cloud-native, containerized, or microservices-based architectures.
• Support mission‑critical operational systems through an on-call rotation.
• Support system operations and maintenance activities by following established IT service management practices, and apply familiarity with the ITIL framework (incident, problem, change, release processes).
• Identify opportunities for improved system performance, scalability, and maintainability.
• Provide support and mentor junior staff in modern engineering practices.

In a typical day, you will

• Balance multiple priorities across project initiatives, system enhancements, and operational support activities, shifting effectively between planned work and unexpected production needs while maintaining quality and meeting deadlines.
• Collaborate with business partners and technical teams to clarify requirements, validate assumptions, and support decision‑making throughout the solution lifecycle.
• Participate in analysis, design reviews, testing cycles, and status discussions to support ongoing initiatives.
• Contribute to design and architecture discussions related to system evolution, reliability, and modernization.
• Maintain awareness of system health, performance, and upcoming changes, escalating risks or impacts proactively.
• Support on‑call responsibilities as required for mission‑critical systems, ensuring continuity of operations.
• Share knowledge and guide junior staff to build team capability and strengthen technical practices.
• 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: 

Role Requirements:

• Requires a strong academic foundation in computer science or electrical/computer engineering, with solid theoretical and practical knowledge of IT system design, development, and management. Strong critical thinking, analytical skills, and effective communication abilities, including the preparation of technical documentation, reports.
• Knowledge of the business operations of the electricity market and related administrative processes is considered an asset.
• This knowledge is normally acquired through the successful completion of a four‑year university degree in computer science, electrical engineering, computer engineering, or a related discipline, or through an equivalent combination of education and relevant experience.

Experience:

• Significant experience in designing, developing, supporting, and enhancing complex IT systems, ideally within mission‑critical or highly available operational environments.
• Strong background in systems integration, solution design, and application lifecycle management, with the ability to work across multiple technologies and platforms.
• Experience working with modern architectural patterns such as microservices, APIs, event‑driven systems, and containerized or cloud‑native solutions.
• Hands‑on experience supporting production systems, including incident investigation, root‑cause analysis, change management processes, and operational troubleshooting.
• Ability to balance competing priorities across project delivery, operational tasks, maintenance activities, and unplanned production needs.
• Strong analytical and critical thinking skills, with the ability to break down complex problems, evaluate solution options, and make sound technical recommendations.
• Experience collaborating with cross‑functional teams, preparing technical documentation, and communicating complex concepts clearly to both technical and non‑technical stakeholders.
• Demonstrated experience refactoring, modernizing, or re‑platforming legacy systems to improve maintainability, scalability, or performance.
• Strong familiarity with information security principles, identity and access management practices, and secure design considerations in on-prem, hybrid or cloud‑native environments.
• Exposure to or hands‑on involvement in DevSecOps practices.
• Experience supporting systems that operate under strict uptime, reliability, or availability requirements, with the ability to work effectively within environments governed by tight SLAs.

Nice to Haves:

• Demonstrated ability to learn and understand domain‑specific business processes; familiarity with the electricity market or power system operations is an asset but not required.
• Knowledge of optimization techniques or experience supporting optimization‑based systems is considered a strong asset.

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: March 9, 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 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. 

Be sure to follow us on LinkedIn.