Senior HR Relationship & Transformation PMO Lead

Mars; Województwo mazowieckie; Hybrid; PLN 240,000 - 320,000; Full time

Benefits offered by this job

Life insurance

Private medical care

Employee Assistance Program

Job summary

Mars Global Services–P&O in Warsaw seeks a Senior HR Business Relationship Manager to drive customer excellence and deliver service portfolios across key segments. Hybrid work and a rich benefits package are offered to support strategic change initiatives and transformation programs.

The role partners with senior stakeholders, leads PMO activities for transformations and M&A, and ensures the MyP&O framework delivers tangible business value through effective change management.

Qualifications

• University degree or equivalent in HR, Business Administration or related field.
• 10+ years of progressive P&O/HR shared services experience.
• Proven P&O Business Partnering or cross-functional HR expertise.
• Fluency in English (written and spoken); other languages a plus.]
• Experience leading transformations and PMO activities, including M&A integrations.

Responsibilities

• Strategic Delivery: lead PMO for transformations and M&A integrations with the OD Transformation framework.
• Enabling Value Creation: drive joint business planning with P&O stakeholders to align service delivery with business value.
• Actionable Insights & VOC: manage Voice of the Customer programs to identify gaps and improve service.
• Strategic Project Management: oversee Enterprise People Strategy projects and P&O operating model enhancements.
• Operational Execution: engage stakeholders across MGS P&O and MyP&O to ensure value creation at touchpoints.
• M&A Integration: advise on transitions and integrate acquired units into P&O service models.
• Stakeholder Management: maintain strong senior-level partnerships and drive the One P&O initiative.

Skills

Stakeholder management

Strategic thinking

Agile project mgmt

P&O knowledge

Digital fluency

Change leadership

English fluency

Education

Bachelor's/human resources or business

Master's degree

Tools

MS Office

HRIS systems

Job description

Mars Global Services–P&O in Warsaw seeks a Senior HR Business Relationship Manager to drive customer excellence and deliver service portfolios across key segments. Hybrid work and a rich benefits package are offered to support strategic change initiatives and transformation programs.

The role partners with senior stakeholders, leads PMO activities for transformations and M&A, and ensures the MyP&O framework delivers tangible business value through effective change management.