Daniel Wishko

Quantitative Finance Expert (Contract)

JUL 2026 - PRESENT · 3 months

Perform expert preference annotation and rationale generation for reward modeling (RLHF) in quantitative finance, designing and grading complex trading and market scenarios that train and benchmark frontier AI models; working up to 40 hours weekly after an instant offer and top-tier case scores.

Portfolio Manager

JUN 2025 - MAR 2026 · 10 months

Designed and executed delta one relative value strategies on qSpark's low-latency U.S. equities platform, overseeing full strategy lifecycle from research through live deployment. Collaborated with C++ developers to architect and optimize execution infrastructure. Conducted quantitative analysis to identify stock relationships and liquidity optimization opportunities; deployed Python analytics for rapid strategy testing and iteration. Monitored live positions across multi-strategy portfolio, managing exposure limits and performance attribution.

Head Trader

JAN 2017 - JUN 2025 · 8.5 years

Led a trading group delivering $500K+ annual P&L with Sharpe ratio consistently above 3 across futures and equity strategies. Directed portfolio construction, risk management, and hedging frameworks across discretionary and systematic strategies. Mentored and developed junior traders; coordinated automation projects with external quantitative developers. Built and maintained strategic relationships with brokers, exchanges, and technology providers. Provided executive-level performance reporting and contributed to strategic planning for group expansion.

Trader

APR 2013 - DEC 2016 · 3.8 years

Generated $3MM in annual income managing U.S. trading hours across multi-product, multi-exchange strategies with full discretionary authority. Partnered with programmers to automate proprietary strategies, enhancing execution quality and operational efficiency. Developed deep relationships across the brokerage and exchange ecosystem to support competitive market access.

Junior Trader

MAR 2011 - APR 2013 · 2.2 years

Executed and co-developed trading strategies on a founding partner's team using Trading Technologies ADL. Supported global coverage across Asian and European sessions; traded multiple products across exchanges to expand market exposure.