Muhammad Saiful 'Ariffin bin Hamid is a Shariah Registered Financial Planner (ShRFP) and a licensed Financial Adviser Representative (FAR) with TSI Wealth Planners Sdn. Bhd.

He holds a Bachelor of Science in Electrical Engineering and a Certificate in Japanese Studies for Engineering Majors from The University of Wisconsin–Madison, United States of America, where he also attended Malay College Kuala Kangsar, Malaysia, prior to his undergraduate studies. His academic foundation in engineering has shaped his analytical and structured approach to financial planning.

Saiful 'Ariffin began his journey in the financial services industry through Shariah Estate Planning in 2018, followed by Takaful in 2019, and subsequently expanded into Unit Trust and Private Retirement Scheme (PRS) advisory. He joined TSI Wealth Planners as a TSI Advisor in 2021, and obtained his FAR and FPR licenses in 2022.

He is licensed in Unit Trust (FIMM), Takaful (IBFIM), and PRS (FIMM), and is a Marketing Representative (MR) with UOB Kay Hian covering Shariah Equity and Futures. He holds a Financial Planner Representative (FPR) license with Expanded Scope under CMSRL from the Securities Commission Malaysia — a distinction that remains rare among Malaysian financial practitioners, particularly among Bumiputera professionals. He has also completed Module 7 of the Securities Industry Development Corporation (SIDC).

Within the TSI Group, Saiful 'Ariffin serves as Co-Head of the Financial Planner Representative Department (since 2023) and Unit Leader of the Shariah Estate Planning Department (since 2023). His areas of focus include Pelaburan (investments), Takaful, and Wasiat, Hibah & Pusaka (Islamic estate planning instruments).

He is also the translator of The Conceptual Idea of The Mua'malat Fiqh Forensic in the Islamic Financial System (originally Gagasan Kesyumulan Fiqh Muamalat dalam Sistem Kewangan Islam) by Hailani Muji Tahir (2019), reflecting his commitment to bridging Islamic finance knowledge with the wider public.

Saiful 'Ariffin is dedicated to providing holistic, Shariah-compliant financial solutions tailored to individual and family needs, with a particular emphasis on client education and financial literacy.