Senior HR Business Relationship Manager (GBS)

Senior HR Business Relationship Manager (f/m/x) in Mars Global Services P&O Department Location: Warsaw Hybrid working * Fully virtual recruitment experience * The Senior HR Business Relationship Manager is accountable for driving customer excellence and delivering the MGS P&O and MyP&O service portfolios to key segments and Sr. P&O Business Partners. By serving as a strategic bridge between MGS and senior stakeholders, this role is essential in enabling value creation across the organization through effective change enablement and deep customer partnership.

Responsibilities

• Beyond relationship management, the BRM acts as a PMO lead for segment transformations including M&A Integrations, operationalizing complex changes via MyP&O and the OD Transformation framework to ensure the business captures the full benefits of the MGS P&O strategy.

What would be your key responsibilities ?

• Transformation & M&A Leadership: Serve as the PMO lead for organizational transformations, utilizing the OD Transformation Framework to operationalize service scope, including M&A integration support to seamlessly onboard new business units.
• Drive joint business planning with global and regional P&O stakeholders to build consistent yet adaptable frameworks that align service delivery with overarching business value.
• Orchestrate the "Voice of the Customer" program to identify service gaps and drive continuous improvement across MGS P&O operations, ensuring high reliability and performance.
• Lead prioritized Enterprise People Strategy projects, providing an end-to-end P&O Operating Model perspective on service expansions and organizational model maturity.
• Leverage the "Capture, Escalate, Resolve" process to diagnose recurring issues, building robust systemic solutions that prevent future service outages.
• Strategic Engagement & Value Creation: Initiate and lead high-impact customer engagement programs across MGS P&O and MyP&O, fostering deeper connections with internal stakeholders to ensure the service model is consistently enabling value creation at every touchpoint.
• Act as the lead for M&A integration support by providing expert advice to customers on the most effective transition pathways, ensuring newly acquired businesses are integrated smoothly and supported through the appropriate P&O service models.
• Monitor segment-specific dashboards to identify potential issues and anticipate organizational trends, proactively deploying MyP&O expertise to provide tailored solutions that address the unique challenges of each business unit.
• Synthesize business environment insights and customer feedback to drive continuous improvement initiatives, ensuring MyP&O capabilities and operational flows remain aligned with the Five Principles.
• Serve as the primary Key Account Manager for select global customers and P&O heads, interfacing directly with senior leaders to manage sensitive organizational requests and build a unified "One P&O" community.
• What are we looking for?

Requirements

• Minimum Qualification: University degree or equivalent, preferably in Human Resources, Business Administration, or a related field.
• 10 or more years of progressive experience within a People & Organization (P&O) / HR shared services environment.
• Proven background as a P&O Business Partner (P&O BP) or a well-rounded blend of expertise across multiple P&O functions (e.g., Talent Acquisition, Total Rewards, Talent Management, Employee Relations, or Operations).
• Fluency in English (written and verbal) is required; proficiency in additional languages is beneficial.
• Stakeholder & Relationship Mastery: Proven ability to quickly establish rapport and maintain strong, customer-oriented partnerships with a diverse range of global and regional stakeholders.
• Expert in diagnosing, isolating, and resolving complex organizational issues by recommending and executing high-impact resolution strategies.
• A results-driven self-starter capable of independently managing multiple high-priority projects and transformations in a fast-paced, evolving environment.
• Demonstrates broad knowledge of HR regulations, policies, and contemporary practices, ensuring all initiatives are technically sound, consistent, and compliant.
• IT-savvy with a keen interest in leveraging technology and system functionality to drive standardization and unlock business value.
• Strong oral and written communication skills with an adaptive mindset that proactively leads change and champions new ways of working.

Preferred

• Master’s degree, or an equivalent combination of advanced education and substantial professional experience.

Benefits

What can you expect from Mars?

• Contract of employment.
• Attractive financial conditions with Business Bonus and Christmas Bonus.
• We will also look after your safety and well-being by offering you rich benefits package including life insurance, private medical care, Employee Assistance Program fully covered by Mars, MultiBenefit Program.
• Lunch card.
• Extra savings scheme to support You in long perspective.
• Support in career building through personalized development plan.
• On-line shop with attractive discounts on our products that Your family and friend are going to love.
• Possibility to participate in volunteering initiatives during working hours.
• A modern and pet friendly office in the City Centre.

Apply now and upload you profile in English.