Sonia Mammen

Architected company-wide HR frameworks and implemented quarterly feedback and coaching programs that improved engagement scores by up to 8% and leadership capability satisfaction by 12% across client organizations.

Led global HR initiatives for GTM (850+ employees), executed strategic workforce reductions delivering $18M in savings, and designed career pathways and performance toolkits for 1,700+ employees to reduce legal risk and enable leader self-service.

Built HR function and recruited C-level leadership, designed career pathing for 70+ roles and launched leadership programs that accelerated manager readiness and organizational capability.

Led HR strategy for global Engineering, Research, Supply Chain and Logistics (1,000+ employees), integrated 400+ engineers from five acquisitions and implemented global people processes for 3,500+ employees.

Scaled the company from ~80 to 300+ employees globally, expanded People team from 2 to 11, and delivered manager training that increased leadership effectiveness by 28% while improving attrition quality.

Led HR across 13 countries supporting 700+ employees, established six entities across EMEA/APAC, implemented standardized career pathing and led a 12-month collective bargaining negotiation successfully avoiding unionization.

Led HR for GTM across 400+ employees in 18 countries and 300+ NYC-based staff, drove Sales & Marketing transformation that generated $2.3M+ savings and increased new sales by 8% through commission redesign.

Executed HR strategy for 850+ employees across Global Finance and Treasury in 85+ countries, led workforce reductions saving $49M and established a Finance Hub in Gurugram with 65+ hires and high retention.

Led HR strategy and senior executive recruitment for Global Marketing, hiring 30+ senior leaders and strengthening succession planning and development programs for 650 marketing professionals.

Directed global HR strategy for Windows Mobile engineering teams (600+ employees), led talent calibrations and succession planning for Search Ad Platform and MSN impacting 1,100 employees worldwide.

Directed global HR operations for Engineering and Sales (900+ employees), led integration for seven acquisitions and placed 70+ leaders to optimize merger effectiveness.

Completed an MBA with a minor in Human Resources, focusing on strategic HR and organizational leadership.

Earned a Bachelor of Science in Advanced Respiratory Therapy, preparing for clinical respiratory care roles.