SphereInvest | Team
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Investment Team, Credit Products

Boris Fischer

Portfolio Manager/Credit

Mr. Fischer joined SphereInvest in 2010 from BlueBay Asset Management, London, where he worked from 2006 as Senior Credit Analyst of Global Emerging Markets Corporates and Financials. Previously, Mr. Fischer worked as Publishing Credit Analyst of CIS Corporates at Barclays Capital, London. Mr. Fischer is a CFA Charter Holder and holds a Grande Ecole Diploma, majoring in Finance, from the ESSEC Business School in Paris. During his studies, Mr. Fischer took a series of six- month placements with Lazard Freres Gestion in Paris, Axa Investment Managers in London and PIMCO in Munich.

Joseph Strubel

Senior Advisor

Mr. Strubel is co-founder, Senior Advisor and Board Member of the SphereInvest and has been actively involved in financial markets for more than 35 years. From 2015 to 2019, Mr. Strubel served as an Independent Non-Executive Director representing Europe on the Board of S&P Global Ratings, in accordance with the ESMA Directive. From 2007 to 2010, Mr. Strubel was a Senior Advisor to Millennium Global (Suisse) SA; from 1999 to 2007, Managing Director of Alternatives for Millennium Global Investments and Portfolio Manager of the Millennium Global High Yield Fund. From 1997 to 1999, Mr. Strubel was co-founder & Head of Fixed Income Investments for Renaissance Capital Asset Management, remaining a Senior Advisor until 2001. From 1996 to 1997, Mr. Strubel was Director, Proprietary Credit Trading, for SBC Warburg Inc. (Swiss Bank/UBS). Additionally, Mr. Strubel worked from 1991 to 1995 as Director, Distressed Assets Portfolio Management, with the HSBC Group and, from 1987 to 1990, as a Senior Economist with Merrill Lynch & Co. Mr. Strubel is a graduate of the University of Rochester, with a BA in Economics and, from the University's Simon Business School, an MBA in Finance and Applied Economics.

Tiberiu Samareanu

Senior Credit Analyst/Trader

Mr. Samareanu joined SphereInvest in 2018 from TradExec Ltd, Geneva, where he worked from 2014 as Head of Trading, responsible for trade execution of all products, including corporate bonds, government bonds, FX and derivatives. Previously, Mr. Samareanu held internship positions at Union Capital Group, Geneva on their Derivatives Team; the National Bank of Romania, in Macroeconomic Research; and at the Erste Group, Bucharest, in Financial Database Management. Mr. Samareanu is a CFA Charter Holder and holds a Master of Science Diploma in Finance from HEC University of Lausanne, Switzerland.

Operations, Risk Management and Finance Team

Nicholas Snelling


Mr. Snelling is co-founder, Chief Operating Officer and Board Member of the SphereInvest . Mr. Snelling has more than 30 years’ experience in financial services, inclusive of the offshore hedge fund, investment fund and trading industry. Mr. Snelling has served as chief operating officer and chief financial officer for various investment groups, including Cedar Investment Management Limited, a short-term currency and commodity trading group, where he was responsible for all aspects of the group's financial and operational management, global risk management and regulatory compliance. Prior to this, Mr. Snelling was Chief Financial Officer of Agora Capital Management Ltd., a Geneva-based fund of hedge funds, carrying out similar duties. As a part of Agora’s Executive Management Committee, he took part in detailed reviews of investment strategy, risk management and internal/external controls. Mr. Snelling holds a BA in accounting and financial control from Hallam University, Sheffield, England, and is a member of the Institute of Chartered Accountants in England & Wales.

Roscoe Camilleri


Mr. Camilleri is responsible for finance, risk management and compliance, as well as assisting in managing the day-to-day operations of the Group. He is also the NFA Compliance Officer, Money Laundering Reporting Officer and an Approved Person by the Malta Financial Services Authority. Mr. Camilleri is a Chartered Certified Accountant and holds a Higher Diploma in Management and Business Administration from the Malta Institute of Management. He is a Fellow of the Association of Chartered Certified Accountants and a Member of the Chartered Institute of Securities & Investments. Prior to joining SphereInvest in 2011, Mr. Camilleri was responsible for managing a portfolio of captive insurance, investment and treasury companies of several FTSE100 multinational groups while at Marsh & McLennan. Mr. Camilleri has 22 years’ accounting and management experience, mostly acquired in the financial services sector before he shifted from the oil and gas industry 15 years ago.

Tracey Mifsud

Financial Controller and Risk Officer

Prior to joining SphereInvest, Ms. Mifsud was first a Senior Auditor, and then an Audit Supervisor, for Parker Russell Turner, overseeing several audit teams on numerous audit engagements for both domestic and international clients, across numerous industries. Prior to this, she interned and became an Associate Auditor for Grant Thornton. Tracey has Bachelor of Commerce and Master of Accountancy degrees from the University of Malta.

Joshua Snelling

Marketing Analyst and Database Management

Mr. Snelling joined SphereInvest in 2019 to build SphereInvest ’s in-house marketing capabilities, as well as manage the Company’s marketing database. Mr. Snelling held a previous customer relationship role at a large multi-national cell phone provider. Mr. Snelling studied Computer Sciences at Northampton University, UK.