Status:Contract (up to 24 months)Working Conditions : On-siteEducation Level:Post secondary diploma/degree in Business Administration, Communications, or a related field preferredBase Location:Oshawa, ONShifts(s):DaysTravel:10%Deadline to Apply:July 13, 2026Salary Range:$57,000.00 - $85,500.00 Per YearJob OverviewOntario Power Generation (OPG) is looking for a energetic, strategic and results-driven professional to join our team in the role of Senior Executive Administrative Assistant.Reporting to the SVP Nuclear Sustainability Strategies, this position is responsible for providing comprehensive executive support—including travel coordination, expense management, calendar oversight, meeting documentation, and stakeholder relations—to senior Hydro business development leaders, leveraging advanced administrative skills and professionalism.Key AccountabilitiesPrepare, submit, and track detailed expense reports primarily through Concur, ensuring accuracy, timely processing, and strict adherence to company policies.Proactively manage multiple executives’ calendars, including scheduling meetings across time zones, resolving conflicts, and collaborating with other administrative staff to ensure alignment and availability.Organize, attend, and document key meetings by preparing agendas, taking accurate minutes, tracking action items, and distributing follow-ups as required. Draft, proofread, and format correspondence, reports, and presentations using Microsoft Word, Excel, and PowerPoint; ensure all documents meet corporate standards.Build and maintain strong working relationships with internal and external stakeholders, acting as a professional representative for the executive team and facilitating smooth communication.Maintain efficient office systems, suggest improvements to administrative processes,



and support the smooth operation of the business development group.Handle sensitive information with discretion and maintain a high level of professionalism in all interactions, leveraging 7–10 years of executive support experience to anticipate needs and resolve issues proactively.QualificationsPost secondary diploma/degree in Business Administration, Communications, or a related field preferred.Over 7 years experience working with managing calendars, processing expense reports coordinate and book complex travel arrangements (flights, hotels, transportation) for senior managers and directors.Proven expertise in coordinating complex travel arrangements and managing expense reports, with strong proficiency in Concur or similar systems.Advanced skills in calendar management, meeting scheduling, and collaboration tools such as Microsoft Outlook, Teams, and Office Suite (Word, Excel, PowerPoint).Exceptional written and verbal communication skills, with experience drafting, proofreading, and formatting professional documents and correspondence.Strong relationship-building and interpersonal skills, demonstrating professionalism and discretion when interacting with stakeholders at all levels.Highly organized with a proactive approach to office management, process improvement, and the ability to maintain confidentiality in handling sensitive information.The successful candidate will exhibit uncompromising integrity and commitment to upholding corporate values, and the OPG Code of Business Conduct.Accessibility and EquityOPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the selection process, please contact [email protected] is committed to employment equity. As such, we encourage applicants from equity‑seeking communities (Indigenous Peoples, racialized persons, persons with disabilities, and women). Priority in hiring may be given to qualified persons who self‑identify as a member of equity‑seeking groups as identified in the application process. This initiative constitutes a special program under the Human Rights Code/Canadian Human Rights Act.#J-18808-Ljbffr

📌 Executive Administrative Assistant - C$57,000 - C$85,500 A Year (Winnipeg)
🏢 Ontario Power Generation
📍 Winnipeg