Dave Nelsen was appointed by the ACERA Board of Retirement and
began work as Chief Executive Officer (CEO) on April 11,
2016. As CEO, Mr. Nelsen reports to the Board of Retirement
and is responsible for leadership and management of all ACERA
operations, in accordance with the applicable provisions of the
California Government Code, regulations, and Board policies.
Kathy Foster, Certified Employee Benefits Specialist (CEBS), has over 32 years experience in California public pension plans. Ms. Foster began her career path with the Contra Costa County Employees Retirement Association where she spent 18 years as a member of the Benefits Department team. In 2001, she joined Alameda County Employees Retirement Association (ACERA) as the Retirement Benefits Manager. In 2008, she was appointed to Assistant Chief Executive Officer and oversees Benefits.
Margo M. Allen, Ph.D. serves as ACERA’s Fiscal Services Officer,
where her department provides accounting and financial services
to all ACERA departments. She began her appointment as the Fiscal
Services Officer on February 4, 2013.
Ms. Arruda’s career with the public sector began in 1995 with the
County of Alameda, Social Services Department. She joined
ACERA’s Human Resources team in 2000 and was appointed as Human
Resources Officer in 2004. In her new role, she oversees
employee relations and implements employee retention programs.
Ms. Arruda is an active member of the National Public Employer
Labor Relations Association (NPELRA), Society of Human Resource
Management (SHRM) and International Personnel Management
Sandra Dueñas-Cuevas has over 32 years of experience in
government, non-profits, marketing, and sales. Coming to ACERA
out of 6 years of work for the Office of the Alameda County
Public Defender, Ms. Dueñas-Cuevas joined ACERA in 2001 as a
Retirement Specialist, was promoted within 6 years to management,
and was appointed Benefits Department Manager in 2015.
Harsh Jadhav serves as Chief of Internal Audit, where his
department is responsible for providing independent assurance and
advisory services designed to improve operational efficiencies
and protect against misappropriation of public funds. As part of
senior management, the Chief of Internal Audit is tasked with
bringing a systematic, disciplined approach to evaluate and
improve the effectiveness of key financial and operational
controls, and reports directly to the ACERA Board of Retirement.
Vijay Jagar serves as Chief Technology Officer for ACERA, where
the Project & Information Services Management (PRISM) department
he heads is responsible for the information technology and
computer systems that support organizational goals.
Previously, Mr. Jagar has provided IT consulting to private,
government, and non-profit sectors in the areas of IT strategic
planning, project management, and infrastructure upgrades.
Mr. Jagar has certifications in cybersecurity and project
management, and earned his Bachelor of Science Degree in Computer
Science from UCLA.
Jeff Rieger joined ACERA as Chief Counsel in March
2020. Prior to that he was in private practice since 2001
and represented many state, county and city retirement systems
throughout California, both in litigation and as Fiduciary
Counsel. Jeff received his Bachelor of Arts degree from the
University of California, Los Angeles and his Juris Doctor degree
from the University of California, Berkeley.
Betty Tse, CPA, CGMA, MBA manages and oversees ACERA’s
$8.3 billion investment portfolio and acts as a primary
resource for the CEO and as the liaison to ACERA’s Investment
Committee. Ms. Tse served as ACERA’s Investment Officer for three
years beginning in 1999 when she was promoted from Investment
Analyst. In 2002, she became ACERA’s first Chief Investment
Officer; prior to this the Investment Department was managed by
the Chief Executive Officer.
The Administration Department is led by the Chief Executive
Officer who plans, manages, and administers the business of the
retirement system and coordinates external outreach with
legislators and member organizations.
The Benefits Department administers all benefit programs and
provides multiple services to active, deferred and retired ACERA