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AEJ Consulting Ltd

Quantitative Researcher

On site

London, United kingdom

Junior

Full Time

23-02-2026

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Skills

Communication Leadership Python Rust Data Analysis Dynamics Decision-making Research Machine Learning Scikit-Learn Numpy Pandas C++ Mathematics

Job Specifications

We are seeking a highly skilled Quantitative Researcher to join a leading financial services firm. You’ll be working directly with a Developer to build out an options market making desk.

Job Responsibilities

Lead the research and development of advanced volatility models for options market making across any asset class (equities, commodities, FX, rates, crypto, etc.), including custom implied volatility surfaces, term structures, skew/smile dynamics, and stochastic/local/rough volatility frameworks.
Design, calibrate, and backtest options pricing engines, risk models, and market-making strategies, incorporating inventory management, hedging costs, flow dynamics, and real-time P&L attribution.
Analyze vast datasets of options chains, order flow, market microstructure, and cross-asset signals to uncover trading edges and refine quoting, skew, and volatility arbitrage approaches.
Collaborate directly with traders, Quant Developers, and senior leadership to translate research into live production strategies, optimizing for liquidity provision and risk-adjusted returns.
Build and maintain internal libraries for volatility forecasting, scenario analysis, and stress testing, ensuring models are robust under volatile market conditions.
Monitor academic and industry advancements in options MM, volatility trading, and machine learning applications, piloting innovative techniques to maintain a competitive edge.
Mentor junior researchers and contribute to the firm-wide quant culture, driving data-driven decision-making for the new desk.

Required Qualifications, Capabilities, and Skills

PhD or MSc in Quantitative Finance, Mathematics, Physics, Statistics, or a related quantitative discipline.
4+ years of hands-on experience in options research, preferably in market making, prop trading, or volatility desks at a hedge fund, HFT firm, or bank.
Deep expertise in building custom volatility models (SABR, Heston, SVI, GARCH variants, rough volatility) from first principles, including surface fitting, calibration, and dynamic evolution.
Strong proficiency in Python (pandas, NumPy, SciPy, scikit-learn) for data analysis, modeling, and simulation; C++, Rust, or Julia experience a plus for performance.
Proven track record in options market making concepts: implied vs. realized vol, Greeks hedging, inventory risk, and cross-asset correlations.
Solid understanding of statistical methods, time-series analysis, and ML techniques applied to financial markets.
Excellent communication skills to convey complex models to traders and stakeholders.

Preferred Qualifications, Capabilities, and Skills

Experience with options in commodities or energy markets (futures options, spreads, etc.).
Hands-on with high-frequency data pipelines, backtesting frameworks (e.g., Zipline, Backtrader), or cloud-based simulation.
Publications, open-source contributions, or conference presentations in volatility modeling or options MM.
Familiarity with regulatory aspects of derivatives trading (MiFID II, EMIR).

About the Company

At AEJ Consulting, we are a specialist talent solutions consultancy providing expert search and strategy into some of the largest and best-known institutions around the world. Our solutions enable teams to develop and build globally, from executive appointments through to embedded consulting partnerships. AEJ Consulting has an evolving approach to proactive talent sourcing, market insight and research, allowing us to consistently grow our network across UK & Europe, The Americas, APAC & MENA. If you would like to find out ... Know more