Manager, EPM Platform (OneStream / Hyperion)

Location: Mississauga, ON (Hybrid)

Type: Full-Time

Overview

Our client is seeking an experienced Manager, EPM Platform to lead the governance, administration, and operational management of their Enterprise Performance Management (EPM) environment, with a primary focus on OneStream and legacy Hyperion platforms.

This role serves as the central point of contact between business stakeholders, internal EPM administrators, and external consulting partners. The successful candidate will oversee platform governance, change management, controls, vendor management, and a team of EPM Administrators while supporting the organization's ongoing transition from Hyperion to OneStream.

This is an excellent opportunity for someone with a blend of OneStream/EPM expertise, leadership experience, governance knowledge, and stakeholder management skills .

Responsibilities

EPM Platform Management

- Serve as the primary point of contact for all OneStream-related requests across the business
- Prioritize and coordinate incoming requests based on business needs, complexity, and risk
- Partner with business stakeholders to gather requirements, communicate updates, and ensure successful delivery
- Manage relationships with external consulting and managed service partners
- Support the ongoing transition from Hyperion to OneStream

Change Management & Governance

- Own and enhance the change management framework for the EPM environment
- Ensure appropriate documentation, approvals, testing, and production deployment processes are followed
- Maintain change logs and ensure changes are properly documented and auditable
- Coordinate release schedules while minimizing disruption during key financial cycles

Controls, Compliance & Security

- Establish and maintain governance standards, policies, and procedures
- Oversee user access, security controls, and segregation of duties




- Support audit requirements and ensure compliance with internal control frameworks
- Conduct periodic reviews of system access, configuration, and change management practices

Vendor & Project Oversight

- Direct and oversee work performed by external consultants and service providers
- Review deliverables, manage timelines, and ensure quality standards are met
- Oversee testing, QA, and UAT activities for platform enhancements and releases

Leadership

- Lead and develop a team of EPM Administrators
- Provide coaching, performance management, and workload planning
- Support knowledge sharing and team development initiatives

Qualifications

Required Experience

- 5+ years of experience supporting Enterprise Performance Management (EPM) or Financial Systems platforms
- Hands-on experience with OneStream , Hyperion , or a comparable EPM platform
- Experience leading change management, governance, or controls initiatives for enterprise systems
- Experience managing business requests and translating requirements into technical workstreams
- Experience working with third-party vendors, consultants, or managed services providers
- Previous people leadership or team management experience

Preferred Qualifications

- OneStream Administrator or Design Certification
- Experience with SOX, ITGC, audit, compliance, or controls frameworks
- Knowledge of finance, accounting, FP&A;, or financial reporting processes
- Experience supporting large-scale enterprise application environments

Technical Skills

- OneStream
- Hyperion
- EPM / Enterprise Performance Management Platforms
- Change Management
- IT Governance & Controls
- Security & Access Management
- Release Management
- UAT / Testing
- Microsoft Excel, Word & PowerPoint

What We're Looking For We're looking for someone who can effectively bridge the gap between business and technology teams while ensuring robust governance, controls, and operational excellence across the EPM environment. The ideal candidate combines EPM platform knowledge with strong leadership, stakeholder management, and vendor management capabilities.

📌 EPM Platform Manager (Greater Toronto Area)
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📍 Greater Toronto Area