Mareike is a senior HR executive and executive MBA with deep experience in building and transforming People & Culture organizations. She advises founders and leadership teams on HR strategy, target operating models, leadership development, recruiting transformation, and culture change. Her track record spans PE-backed software and payments, digital platforms, and large enterprises where she has led international teams, delivered measurable improvements in hiring velocity, engagement, and retention, and navigated complex stakeholder settings including works councils.
I bring clarity to complex structures and build a positive, performance-oriented culture.
Key Career Milestones
- People & Culture Lead (Interim), tecRacer
Built HR from scratch with a scalable target operating model, introduced fair-pay framework and performance processes to support growth. - SVP Global HR, Serrala (Hg portfolio)
Led global HR across services, TA, HRBP, L&D, and systems. Delivered a recruiting turnaround and reduced voluntary attrition with a KPI-driven operating rhythm. - VP Group HR, Unzer (KKR portfolio)
Implemented a new HR operating model and stood up the HR Business Partner function. - Director Organizational & Cultural Development, NEW WORK SE
Ran large-scale culture and change programs, introduced leadership and talent initiatives, and increased women leaders at the top management level. - Senior Expert Change Management, Deutsche Bahn
Led change in a nation-wide restructuring with measurable adoption gains and a cross-company change network.
Areas of Expertise
- HR strategy and target operating models
- Organizational development and change management
- Leadership development and learning programs
- Recruiting transformation and employer branding
- HR systems and analytics
- Post-merger integration and restructuring
- Works council collaboration and labor law topics
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