Senior Change Manager

Job Title: Senior Change Manager |
Location: Warren, NJ |
Type: Contract |
Compensation: $85-$90 hourly |
Contractor Work Model: Onsite |
Hours: Monday-Friday 9am to 5pm

We are seeking a Senior Change Manager to support a large‑scale operating model transformation requiring significant shifts in mindset, ways of working, skills, processes, systems, and technology.

• Develop and execute a comprehensive change strategy, approach, and plan across the program lifecycle, leveraging established methodologies such as ADKAR, Galbraith Model, and Lewin’s Change Model
  .
• Serve as the primary owner of change delivery, ensuring initiatives translate into sustained adoption—not just communications, training, or project milestones.

• Identify, map, and actively manage key stakeholder groups across functions and leadership levels.
• Build and maintain strong partnerships with Senior Leaders, HR, and program leadership to align on priorities and readiness.
• Coach leaders and sponsors to drive accountability, model desired behaviors, and realize intended benefits.

• Lead end-to-end change impact assessments
  , defining the transition from “current state” to “future state” across functions, roles, and grades.
• Design and execute targeted adoption actions to support new operating models, behaviors, and ways of working.

• Partner with Corporate & Government Affairs, HR, and leadership to design and deliver clear, compelling change communications.
• Provide strategic input to U.S. communications teams to ensure consistent, timely, and effective messaging.

• Identify and manage key change-related risks and resistance points.
• Develop mitigation strategies in collaboration with workstream leads and elevate themes as needed to ensure resolution.

• Define success metrics and adoption KPIs; assess readiness and change effectiveness.
• Track outcomes, report progress, and measure realized benefits using dashboards and analytics.

• Partner with HR Learning & Development, Subject Matter Experts, and workstream leaders to conduct training needs analyses.
• Ensure appropriate training, upskilling, and capability‑building plans are developed and embedded across stakeholder groups.

• 10+ years of experience in organizational change management
  , transformation, or large-scale business change initiatives.
• Demonstrated experience leading change in complex, matrixed enterprise environments
  .
• Strong knowledge of operating model components (structure, governance, processes, ways of working).
• Advanced experience with change methodologies (ADKAR, Galbraith, Lewin).
• Strong stakeholder management, leadership coaching, and influencing skills.
• Excellent written and verbal communication skills, including executive-level presentations.
• Strong analytical skills with experience using KPIs, dashboards, and change analytics.
• Proficiency with common business and collaboration tools (e.g., Excel, Jira, Walk Me, or equivalent).

• Experience supporting complex operating model and organizational transformations in CPG or similarly regulated industries
  .
• Hands‑on experience with change enablement and digital adoption tools (e.g., Excel, Jira, Walk Me, or equivalents).
• PROSCI and/or APMG Change Practitioner certification (required).

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

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