Andrej started his career in 2002 in USA as a finance analyst in Sodexho Inc. In 2003 he joined Hrvatski Telekom as an assistant in the office of Chief Financal Officer where he was in charge of treasury and corporate finance, after which he moved to strategy department managing strategic planning for all member companies of T-HT Group. In 2007 Andrej co-founded fund management company Platinum Invest where he was a board member until 2008 when he sold his equity stake and became head of corporate finance within Erste Group in charge of Croatian market with focus on M&A projects, recapitalizations and financial restructuring. At the beginning of 2010 he started a corporate finance firm – GRUBISIC & Partners Corporate Finance (since 2025 Grubisic Kresic Corporate Finance) focusing on mergers and acquisitions, capital raising, valuations, due diligence and financial restructuring. Andrej is responsible for business origination, conceptual setup of project engagements, supervision and quality control, client advisory and assurance of fulfillment of all preconditions for deal closing. During 2004 – 2018 Andrej was professor of finance at undergraduate and MBA program at Zagreb School of Economics and Management, and from 2017 he has been professor of finance at Luxembourg School of Business.