Stefan specializes in providing market, financial, regulatory, operations and technology risk management advisory services across the financial services industry.• Led operational reviews of major global financial services companies. Involved conducting operating effectiveness testing and assessing the adequacy of 1st and 2nd line of defense policies, procedures and control. • Led multiple supervisory, regulatory, and compliance control framework risk assessments across major global financial institutions. • Assisted serval major global investment banks Identify, document and test the effectiveness of the financial, market, regulatory, and operational & technology controls applicable trading plants across all E-Trading related businesses (i.e., equities, options, derivatives, swaps, fixed income, FX and commodities trading). • Led multiple engagements to assist financial services firms with regulatory registration, including registration of a: 1) Self-clearing member firm with FINRA; 2) National securities exchange with the SEC, including the registration of FINRA broker-dealer to handle the routing of intermarket orders; 3) Swap Dealer with CFTC; and 4) Securities Based Swap Dealer with the SEC. • Performed with full-scale reviews of a large broker-dealers’ and swap dealers’ regulatory reporting processes to assess compliance with relevant rules and regulations, including SEA Rule 15c3-1 (Net Capital) and SEA Rule 15c3-3 (Reserve Computations).• Assisted multiple major global investment banks respond to US regulatory Orders and MRA’s (Matter’s Requiring Attention) with respect to their FX and derivative trading programs, specifically as it relates to conduct and associated control frameworks. • Assisted several major global investment banks with the build-out of their Global Rules Framework programs covering all business activities. This also included mapping such obligations to associated business line or enterprise-wide level policies and procedures.

• Traded derivatives, options, futures and equities as an options specialist, market maker and risk manager. • Provided risk management for multiple derivative and equity positions by continually assessing and hedging such positions based on implied volatility, correlative trading, earnings, dividends, interest rates, and other variables in equity and option pricing. • Served as overall operational contact as related to trade processing, reconciliation and settlement of transactions executed. • Conducted risk-based prioritized reviews to ensure that trading, order management and market data systems are designed and operating in a manner that is consistent with securities laws and applicable exchange rules. • Responded to regulatory inquiries regarding trading activity and compliance investigations associated with trading activity• Responsible for best execution reviews to ensure executed customer orders receive the best possible bid or offer disseminated on any exchange.• Responsible for planning, and implementing exchange IT support including BRD & functional specification development, UAT and change management protocols.

• Reviewed an analyzed trading activity and advised staff on complex investigations involving potential violations of federal securities laws, various exchange rules, and FINRA rules by member firms and associated persons.• Prepared memoranda summarizing examinations and investigative results, analyzing applicable law, and assessed evidence to determine legal sufficiency with respect to potential violations.• Assisted legal staff with settlement discussions with respondents.• Performed financial and operational on site examinations of broker/dealers to review for: compliance with books and records, written supervisory procedures, supervision, financials, customer suitability, trading and market making, and operations requirements.• Routinely monitored and analyzed financial & operational statements, reports, annual audits, and net capital computations.