Leadership

Ms. Rosemarie McClean of Canada (Western European and other States) brings to the position over 32 years of progressively responsible experience in pension administration and management. Previously she was Chief Operating Officer of the Ontario Teachers’ Pension Plan in Toronto where she managed a sizable budget and was responsible for operational activities including financial operations for pension administration and investments, information technology, project management, and process improvement.

Before that position, Ms. McClean served as Senior Vice-President of Member Services in the Pension Plan and was accountable for all aspects of service delivery to retired and working teachers in Ontario. Named as one of the Most Powerful Women in Canada by the Women’s Executive Network in 2008, she has mentored young leaders throughout her career.

Ms. McClean holds a Master of Business Administration from the Rotman School of Management, University of Toronto, and a Bachelor of Arts in Business Administration and Management from the University of Waterloo. She holds a Certified Public Accountant designation.

Mr. Robert van der Zee of The Netherlands (Western European and other States) was appointed on 16 August 2025 to serve as the UN Secretary-General’s Acting Representative for the investment of the assets of the United Nations Joint Staff Pension Fund (UNJSPF). Previously, Mr. van der Zee served as the Chief Financial Officer at the World Food Programme (WFP) in Italy. Mr. van der Zee brings 30 years of experience across various financial management roles. He possesses extensive and in-depth organizational and financial knowledge and expertise along with a strong track record of senior leadership in both the financial services industry and international organizations. 

Mr. van der Zee joined WFP in 2005 as Global Treasurer, having served since then as Director, Corporate Finance Division (2018-2024), and Deputy Director, Finance and Treasury Division (2013-2018). He started his career in financial services at ABN AMRO Bank (1995-2005), including assignments in The Netherlands, Ireland, Hungary, Greece and Spain, with primary focus on financial institutions and public sector clients, delivering debt capital markets, structured finance and transaction services solutions.

Mr. van der Zee holds a Master of Science in Business & Finance, Erasmus University Rotterdam, The Netherlands (1989-1995), and an International Executive MBA, IE Business School, Madrid, Spain (2003-2004). In addition to his native Dutch, he is fluent in English, Spanish and Italian.

In October 2025, Mr. Dino Cataldo Dell’Accio of Italy (Western European and others States) was appointed to the position of Deputy Chief Executive of Pension Administration of the United Nations Joint Staff Pension Fund (D-2), following his service as Chief Information Officer (D-1) since January 2017.

Before joining the UNJSPF, Mr. Dell’Accio served as Chief of Information and Communications Technology (ICT) Audit in the Office of Internal Oversight Services, and Information Security Officer in the ICT Service Division of the United Nations Secretariat. Previously, he served as Internal Auditor/ICT Auditor in UNICEF.

Prior to his assignments with the United Nations System, Mr. Dell’Accio worked as Internal Auditor and Business Process Analyst in the Institute for Loans and Deposits of the Italian Ministry of Economy and Finance.

Mr. Dell’Accio holds several qualifications and professional certifications in ICT Management and Security, Auditing and Accounting. He holds Master’s degrees in Internal Auditing and ICT and Telecommunications Laws.

Ms. Maria Clarissa O’Donnell of the Philippines (Asia-Pacific States) was appointed as Chief of Operations (D-1) in June 2016, having served the UNJSPF for 15 years –  7 years as Chief of Pension Entitlements Section, 2 years as Chief of Client Services & Records Management and Distribution Unit, 3 years as a Benefits Officer and 3 years as Deputy Cashier. Prior to the UNJSPF, she served 10 years in UNHCR in Geneva, Moscow and Africa mostly, in the Finance and Administration areas. Before joining the UN System, she worked for Far East Bank and Trust Co. in the Philippines for 3 years as an accountant.

Ms. O’Donnell obtained a Bachelor of Commerce Degree in 1987 from Asia’s oldest university (University of Santo Tomas, Manila) before becoming a Certified Public Accountant.

Mr. Enzo Iaderosa of Italy (Western European and other States) was appointed as the Chief Financial Officer (D-1) on 1 August 2024. 

He previously served as the Chief of Operations at the Office of Investment Management of UNJSPF. His responsibilities included the oversight of the record keeper, the preparation of financial statements, the tax reclamation effort, the accounting and reporting of the private market portfolio, the supervision of the settlement process for all investment transactions, and the coordination of the cash desk. 

Prior to joining the UNJSPF, Mr. Iaderosa was a director at PwC. Mr. Iaderosa holds an MBA in Finance and holds a graduate degree in Economics from University “Federico II” in Naples, Italy. Mr. Iaderosa is a Certified Public Accountant in the State of New York. 

The Chief Finance Officer reports to the Chief Executive of Pension Administration and Representative of the Secretary-General for the investment of the UNJSPF assets.

Mr. Aliamane Bacar Said, a national of Comoros (African States) was appointed as Chief of Client Services (D-1) in November 2025, having served the UNJSPF for 25 years. Having graduated with Honors in Business Administration at the University of Illinois at Urbana-Champaign, USA, he returned to his native Comoros Islands where he worked as Financial and Administrative Manager for a travel and tourism company. He then worked as Administrator and Accountant of the UNDP/GEF funded Conservation of Biodiversity Project that led to the creation of the Moheli Marine Park. Having successfully passed the National Competitive Exam in 2000, he joined UNJSPF New York in February 2001 as Associate Finance Officer. In October 2003, he became Deputy Chief of Payments Unit, in charge of Payroll, where he played an important role in implementing the Banking Interface. After a short stay in UNJSPF Geneva as Finance Officer, he returned to UNJSPF New York in 2006 as Finance Officer to lead the team that handles Bank Reconciliation and Accounts Receivable in the Accounts Unit. In 2008, he returned to UNJSPF Geneva as Finance Officer and was appointed as Chief of Client Services in 2012. In April 2017, he was appointed as Chief of Finance, Client Services and Records Management Section, in charge of providing advice and services to the UNJSPF Clients in Europe, Middle East and Africa (EMEA). In 2020, he came back to Operations Service in New York to head the newly created Operations Support Section.

Mr. Cristiano Papile of Canada (Western European and other States) was appointed to the position of Chief, Legal Office (P-5), in May 2024. He previously served as a Legal Officer in the Pension Administration and in the United Nations Secretariat, and as a United Nations Volunteer in a peacekeeping mission.

Prior to joining the United Nations, Mr. Papile practiced law in Canada and clerked at the Supreme Court of British Columbia. He holds a Juris Doctor from the University of Toronto and a Bachelor of Arts in economics from Queen’s University.

Mr. Toru Shindo of Japan (Asia-Pacific States) currently serves as the Chief Investment Officer (D-2) for the Office of Investment Management. With over 25 years of experience in investments and a comprehensive 35-year background in the finance industry, he meticulously manages teams across Public Equities, Fixed Income, Private Markets, and Sustainable Investment. Mr. Shindo plays a pivotal role in recommending investment policy and strategies to the Representative of the Secretary-General, executing the strategic asset allocation, and making decisions in tactical strategies. His focus is on ensuring sustained performance over long-term horizons for the Fund.

Mr. Shindo's journey with UNJSPF began in February 2004 as an Investment Officer for Asia Pacific equities, progressing to Senior Investment Officer in April 2007. Recognizing his expertise, he was promoted to Deputy Director and Chief of Investment Section in February 2009.   In May 2021, he was promoted to the first Chief Investment Officer when the Fund newly established the position.

Before joining UNJSPF, Mr. Shindo held the position of Director at Deutsche Trust Bank in Tokyo, where he concentrated on the active management of international equity for public and private pension funds. With a robust background spanning over 35 years in the finance industry, he has previously been associated with Bankers Trust and Nikko Securities.

Mr. Shindo earned his BA in Economics from Hitotsubashi University in Tokyo and his MBA from New York University. He holds the Chartered Financial Analyst designation.

Ms. Agata Ruta of Poland (Eastern European States) is the Chief Operating Officer  (D-1) and joined the Office of Investment Management (OIM) ) of the United Nations Joint Staff Pension Fund (UNJSPF) on July 17, 2025. 

She built her career at the intersection of technology, finance, and innovation, working across Poland, India, Colombia, and most recently, spending six transformative years in Belize as Chief Operating Officer at Belize Bank, where she led digital, business, and retail banking, product development, and the bank’s ambitious digital roadmap. 

Previous high-stakes roles include mergers and acquisitions with fintech giant Naspers, where she orchestrated online payment systems across Europe, India, and South America. This global perspective, combined with her deep understanding of emerging markets, enables her to create unique value propositions that unlock untapped growth potential.

She holds an MBA from Georgia State University, a master’s degree in economics from the Poznań University of Economics, and certifications in E-commerce Management from Harvard Business School and Strategic Planning from the American Management Association.

Mr. Jose Nunez of Mexico (Latin American and Caribbean States) is the Chief Risk and Compliance Officer, Director, (D-1) and joined on May 1, 2023. The role of Chief Risk and Compliance Officer reports to both the Chief Executive of Pension Administration and the Representative of the Secretary-General for the investment of the UNJSPF assets. With over 28 years of Risk Management experience, Mr. Nunez is responsible for developing and implementing the Fund's policy on investment risk control (public equities, fixed income, and private markets risks), operational risk, compliance, and investment performance.  

Prior to joining the United Nations, he served as Chief Risk Officer at two FinTechs to integrate recently acquired banks in Mexico and implementing risk management frameworks in preparation for an IPO. He also served as Head of Wholesale Credit & Market Risk for Latin America at HSBC. As CEO of BBVA Leasing in Mexico, he championed the integration of the leasing product into the core banking operation.  

Mr. Nunez received a Doctor of Business Administration degree from the International School of Management in Paris. In addition, he earned a Master’s degree in Business Administration from IPADE Business School and graduated from Universidad La Salle with a Bachelor’s degree in Mechanical Engineering. 

Mr. Pako Thupayagale, a national of Botswana (African States), is the Director for Fixed Income (D-1) and joined the Office of Investment Management (OIM) of the United Nations Joint Staff Pension Fund (UNJSPF) on March 1, 2023. He brings a wealth of experience to the team and portfolio, having worked in the private sector, central bank, and sovereign wealth fund. Prior to joining, he spent 5 years at Ninety-One where he was a multi-asset portfolio manager. He spent 20 years at the Bank of Botswana where he was responsible for the management of Botswana’s sovereign wealth fund, the Pula Fund, which comprises global equities, fixed income, and currencies.   

He holds a Doctor of Philosophy in Finance from the University of St Andrews in Scotland, a Master of Science in Economics from the University of Warwick, and a Bachelor of Arts in Economics & Statistics from the University of Botswana. He also completed the Executive Development Programme at the University of Stellenbosch, in South Africa. He has a track-record of peer-reviewed publications in academic and practitioner journals on equity and fixed-income markets across emerging markets.  

Mr. Andres Perez of Brazil (Latin American and Caribbean States) is the Director for Public Equities (D-1) and joined the Office of Investment Management (OIM) of the United Nations Joint Staff Pension Fund (UNJSPF) on 1 September 2024.  He brings over 30 years of experience and most recently held a position as Portfolio Manager for Global Equities at AGF (American Growth Funds) where he managed long-only equity portfolios for over a decade.  

Previously, he held similar roles in global equities at UBS, Morgan Stanley, and Citadel among others. He has lived in several countries including Colombia, Ecuador, South Korea, the UK, and Canada. 

He holds a BA from Tufts University and studied at the London School of Economics. He speaks Portuguese and Spanish.   

Terezie Hesounova Trivell, a national of Czechia (Eastern European States) is the Director of Private Markets (D-1) overseeing the Fund’s global private markets investments at the Office of Investment Management (OIM) of the United Nations Joint Staff Pension Fund (UNJSPF) since April 2022. Ms. Hesounova Trivell oversees approximately US$20 billion in private markets, including private equity, real estate and infrastructure. Ms. Hesounova Trivell actively participates in asset allocation, investment strategy and organizational development roles.

Mr. Wiryanto Sumitro (Yanto) is a national of Indonesia (Asia-Pacific States). His work experience in the United Nations spans over 25 years, most recently as Deputy Secretary of the Administrative and Budgetary (Fifth) Committee and the Committee for Programme and Coordination of the United Nations General Assembly from 2008 to 2022. Mr. Sumitro’s career includes working for the UNJSPF as Chief Payments (2001 – 2003) and Benefits Officer (1999 - 2001). Prior to joining the United Nations, he worked as Finance Officer at IBM Indonesia from 1989 to 1993.

Mr. Sumitro is a graduate in Business Administration (Bachelor of Economics - Sarjana Ekonomi) from Universitas Indonesia, Jakarta.

During his spare time, he treasures spending time with family and enjoys traveling (by land or by air).