Senior Cutover Manager

Education Level: A four‑year university degree in Engineering, Computer Science, Business Administration (with a project management focus), or a related discipline.

Base Location: Oshawa, ON

Shift: Days

Travel: 10%

Deadline to Apply: July 8, 2026

Salary Range: $1,664.34 - $2,333.49 per week

JOB OVERVIEW

Ontario Power Generation (OPG) is looking for a dynamic, strategic and results‑driven professional to join our team in the role of Senior Cutover Manager.

Reporting to the Manager, IT Product Delivery, this position is responsible for leading end‑to‑end cutover planning and execution for a SAP S/4HANA greenfield implementation with a strong focus on Finance (General Ledger, Period Close, Accounts Receivable, Accounts Payable, and Real Estate).

This role will own the integrated cutover strategy across SAP workstreams, data migration, and a portfolio of legacy system interfaces introduced as part of the program. The Cutover Manager will also plan and coordinate post go‑live/hypercare activities to ensure a stable transition to operations.

KEY ACCOUNTABILITIES

• Plan and coordinate Finance cutover activities including: GL balances and open‑item handling, period‑end/year‑end close considerations and blackout windows, AR/AP open items, aging, payments, billing, collections, dunning (as applicable), bank interfaces, payment runs, lockbox (if in scope), Real Estate master data and transactional cutover considerations.
• Coordinate with the data migration lead and functional teams to plan mock conversions / dress rehearsals, final load sequencing and validation checkpoints, reconciliation plans (e.g., trial balance tie‑outs, subledger‑to‑GL reconciliation, open‑item reconciliation).
• Lead cutover planning for legacy system interfaces (inbound/outbound) being introduced or modified, including interface readiness, deployment, and connectivity validation, message/file cutover approach (dual‑run, parallel run, switch‑over, decommission timing), monitoring, error handling, support procedures, and ownership.
• Plan and execute cutover rehearsals to validate task duration, sequencing, resources, and defect resolution.

QUALIFICATIONS

• Requires a 4‑year university degree in Engineering, Computer Science, Business Administration (with a project management focus), ERP implementations, or cutover management.
• Proven experience leading end‑to‑end cutover activities for large‑scale ERP implementations (preferably SAP S/4HANA).
• Strong functional knowledge of SAP Finance processes (GL, AR, AP, period close, reconciliation) and their impact during cutover.
• Demonstrated experience coordinating data migration activities, including mock conversions, final data loads, and reconciliation strategies.
• Experience managing cutover for system integrations and interfaces (inbound/outbound), including deployment, validation, and transition strategies.
• Strong understanding of reconciliation processes (e.g., trial balance tie‑outs, subledger‑to‑GL, open items) and financial data validation.
• Proven ability to plan and execute cutover rehearsals (dress rehearsals), including sequencing, timing, issue resolution, and resource coordination.
• Excellent stakeholder management, leadership, and communication skills to coordinate across business, IT, data migration, and operations teams.

EEO AND ACCESSIBILITY STATEMENTS

OPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the selection process, please contact View email address on ca.talent.com.

OPG 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 under the Human Rights Code/Canadian Human Rights Act.

Apply for the position directly on OPG’s career site to be considered for an interview.