Partner Bios

Partner Bios

Parwin Dina – Lead Client Service and Tax Compliance Partner

01 (1)BA Accounting & Finance (UK) VAT Compliance Diploma UK & GCC, FTA Tax Agent (Dubai), Chartered Tax Advisor (CTA) UK, FCA (ICAEW)

23 years of experience in direct and indirect tax. Founder of Deloitte Middle East International Tax Practice and former International Tax Director. Worked at Deloitte, PWC, Citi Group, National Australia Bank and HSBC UK. Experience across different industries including Financial Services, Oil and Gas services, EPC and Hospitality. Parwin speaks English, French and Arabic.


Jean Charles Hut – Strategic Partner​​

jcs picture (1)MBA Corporate Finance & MIS – Terry College of Business (USA), Masters in Finance – ISC Business School (France), IMA member

Over 25 years experience as senior executive, CFO of listed group affiliates (Oil & Gas services) and privately owned groups. Experience in various sectors, including Construction, Real Estate, Hospitality, Trading, Education, Manufacturing, IT and Distribution.Jean Charles speaks English and French.



Rubeena Dina – Partner​​

rubeena new pic

BSc Accounting Warwick University (UK) ACA ICAEW, UK

​22 years of tax and finance experience across three continents including financial reporting and analysis, planning and strategy, financial modelling, preparation of GST Manual, GST audit, review of Transfer Pricing documents and GCC VAT impact assessments. Rubeena speaks English and French.



Ahmed Al Juboori – Partner

IMGCPA (Arab Institute)

​25 years of tax experience in Iraq, including as PwC tax professional. Contributed to promulgation of Accounting Standards in Iraq and professional training of accounting and auditing clients. Currently based in GTS’ Iraq office managing tax affairs of clients across Oil & Gas, Construction, Financial Institutions, Engineering, IT and Manufacturing industries. Ahmed speaks English and Arabic.


Jean-Olivier Pirlet – Associate Partner

2018-10-04 jean-olivier.pirlet@gmx.com_001.pngStudied tax law and Finance/Corporate Finance in France, Sweden (Stockholm), USA (Columbia).

20 years of tax experience in PWC (France) and as in-house international tax manager in the Industry (Manufacturing and EPC sectors (Oil & Gas, Power, Transportation). 7 years as Group Tax Director (IPSOS) covering 100 countries and retail sector (Adeo : 20 B€ Turnover over 15 European countries). Reputed for dealing with highly complex transfer pricing issues, M&A, disposals and corresponding restructuring, various optimisation tax scheme and successful bargaining with international tax authorities.