Sienna Lee

Sienna Lee Email and Phone Number

Global HR Leader with 17+ years of experience delivering impactful HR strategies across diverse financial services organizations in the US and Asia. Fully bilingual in English and Korean.
Sienna Lee's Location
New York City Metropolitan Area, United States, United States
About Sienna Lee

Strategic HR Business Partner with 17 years' experience in all HR Functions (i.e. Performance Management, Talent Acquisition, Talent Management, Compensation, Employee Relations, Organizational Development) in diverse financial services companies in the US and Asia.

Sienna Lee's Current Company Details

Global HR Leader with 17+ years of experience delivering impactful HR strategies across diverse financial services organizations in the US and Asia. Fully bilingual in English and Korean.
Sienna Lee Work Experience Details
  • Charter Communications
    Sr Hr Project Manager
    Charter Communications Feb 2020 - Aug 2023
    Stamford, Connecticut, Us
    Hired by the senior HR director to lead key HR projects and talent initiatives, including rotational programs, development program, and talent management.• Led a cross-functional team of three HR Managers and IT partners to implement an automated employee termination process in PeopleSoft within three months.• Collaborated closely with HR technology team to deliver the automated termination project, more than halving the time required for terminations with more than 50% increase in process efficiency.• Partnered with the head of recruiting and line managers to develop and launch the company’s first summer engineering internship program, creating a talent pipeline to support future business growth.• Designed a 12-week comprehensive learning experience across engineering disciplines, hands-on projects, and a final presentation to senior managers, with full-time acceptances.• Co-managed a comprehensive Talent Management Program for 11,000 employees across 11 regions over 5 months, partnering with a 2-person Organizational Effectiveness team and a manager. • Facilitated future leadership development rotation programs through targeted communications, supervisor training, and monthly check-ins to drive strategic talent growth and advancement.
  • Hyundai Capital
    Team Leader, Global Talent Management
    Hyundai Capital Jun 2017 - Apr 2018
    Recruited by Global HR Head to lead a global Talent Management team executing strategic Organizational Development initiatives for 4800 employees.• Managed four global rotational programs for 10 leaders, optimizing global mobility and streamlining global operational processes.• Directed the Global Executive Leadership program, fostering cross-cultural collaboration and enhancing understanding between Korea HQ and international US, Germany, and Canada offices.• Architected a new Talent Management strategy and roadmap, defining clear objectives, processes, tools, and timelines to drive organizational success.
  • Cigna
    Team Leader, Hr Project Manager
    Cigna Aug 2014 - Oct 2016
    Bloomfield, Ct, Us
    Recruited by APAC HR Head to lead global HR projects and partner with business leaders to drive strategic HR initiatives for over 700 employees.• Led the implementation of Project Grow, the Global HR Intranet, in Korea—streamlining manual processes, centralizing data, and improving efficiency within three months.• Spearheaded the rollout of Cigna’s Connect for Growth, a new performance management process replacing traditional rankings with quarterly, development-focused conversations. • Enhanced employee engagement by 20%, strengthening people development across the organization.• Piloted HR analytics to optimize talent acquisition, retention, and development, reducing turnover by 5%.
  • Bank Of America Merrill Lynch
    Vp Of Human Resources
    Bank Of America Merrill Lynch Nov 2012 - May 2013
    Charlotte, Nc, Us
    Hired by HR Director to lead a global HR team delivering strategic HR services to the Corporate and Investment Bank.• Oversaw performance management, compensation, talent acquisition, and mobility.
  • Samsung Securities
    Global Human Resources Manager
    Samsung Securities Mar 2011 - Jul 2012
    Promoted by SVP of HR and Strategy to liaise with all overseas HR.• Revamped global HR policies, including Deferred Compensation, pensions, and Employee Assistance.
  • Samsung Securities
    Human Resources Manager
    Samsung Securities Aug 2009 - Feb 2011
    Hired by Global HR Head to set up all HR processes for $300 million Hong Kong expansion.• Scaled the organization by recruiting 100+ employees within a year while establishing all core HR processes, including Talent Acquisition, Compensation and Performance Management.• Facilitated cross-cultural collaboration between Samsung Securities HQ and the Hong Kong office.
  • Aig Global Investment Group
    Regional Human Resources Business Partner
    Aig Global Investment Group Sep 2006 - Oct 2008
    Promoted by APAC HR Head to lead talent acquisition, development, performance management, employee relations, and organizational effectiveness.• Recruited top talent during AIG Private Bank's rapid expansion and improved employee retention by implementing competitive compensation and bonus strategies.
  • Aig Global Investment Group
    Human Resources Business Partner
    Aig Global Investment Group Jul 2005 - Aug 2006
    Hired by Global HR Head to improve HR strategies to achieve business and talent objectives.• Partnered with business leaders to align HR strategies with organizational goals, guiding workforce planning, performance management, employee relations, and talent acquisitions.
  • Jpmorgan Chase & Co.
    Human Resources Business Partner
    Jpmorgan Chase & Co. Jan 2002 - Mar 2005
    New York, Ny, Us
    Hired by Head of HR to align HR strategies with business objectives.• Implemented effective talent acquisition, development, and performance management practices.
  • Jpmorgan Chase & Co.
    Human Resources Associate
    Jpmorgan Chase & Co. Aug 2000 - Dec 2001
    New York, Ny, Us
    • Completed competitive 16-month HR Leadership Development Program, excelling in all five rotations.

Sienna Lee Education Details

  • Cornell University
    Cornell University
    Psychology
  • Columbia University
    Columbia University
    Industrial And Organizational Psychology

Frequently Asked Questions about Sienna Lee

What is Sienna Lee's role at the current company?

Sienna Lee's current role is Global HR Leader with 17+ years of experience delivering impactful HR strategies across diverse financial services organizations in the US and Asia. Fully bilingual in English and Korean..

What schools did Sienna Lee attend?

Sienna Lee attended Cornell University, Columbia University.

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