§ 01
Work Experience
Roles in algorithmic market-making, execution, and quantitative research.
QuantFi · Quantitative Developer
March 2023 – August 2024
Schiphol-Rijk, Netherlands
- Built and deployed algorithmic market-making strategies, incorporating volatility and skew estimation, order flow modelling, queue-aware execution, market impact, and reference price dynamics.
- Built a dynamic liquidity allocation model for smart order routing, reducing slippage and transaction costs by an average of 5.8% through real-time optimization over aggregated fragmented order books.
- Developed cross-exchange rebalancing methods that optimised timing and execution of inventory transfers under latency constraints, transaction costs, funding rates, and market liquidity.
Python · asyncio · numba · ccxt
QuantFi · Operational Trader
October 2022 – March 2023
Schiphol-Rijk, Netherlands
- Monitored production market-making algorithms, managing real-time risk parameters and system health to minimize inventory exposure during high-volatility periods.
- Designed and deployed a live trading terminal using
ccxt and native exchange APIs for real-time position and order tracking, integrating Tardis.dev for historical position reconstructions.
Python · ccxt · Tardis.dev
VU Econometrics and Data Science · Research Assistant
January 2024 – June 2024
Amsterdam, Netherlands
- Designed scalable likelihood-based estimation algorithms for functional scale models, optimising computational performance through vectorised computations and parallel processing.
- Reduced execution time of large-scale Monte Carlo simulations by 92.3% on average using NumPy vectorisation and parallel computing.
§ 02
Education
PhD, Master's, and Bachelor's, from applied mathematics to probability theory.
Leiden University
Expected September 2028
Doctor of Philosophy (PhD), Mathematics · Leiden, Netherlands
- Researching decomposition theorems, generic chaining, majorizing measures, weak convergence, and Donsker–Skorokhod theorems for stochastic processes satisfying absolute regularity.
- Organized and led a weekly graduate seminar on weak convergence and empirical process theory.
The full technical writeup, including a walkthrough of the \(\gamma_2\) functional and the majorizing measure theorem, is on the Blogposts page.
Vrije Universiteit Amsterdam
August 2024
Master of Science, Econometrics and Operations Research · Amsterdam, Netherlands
- Honours Programme, GPA 8.9/10 (magna cum laude).
- Developed a novel functional stationarity test for multidimensional diffusion processes for a thesis project, implementing and packaging the mathematical framework into an open-source Git repository (see Projects).
- Relevant coursework: Measure Theoretic Probability, Quantitative Financial Risk Management, Stochastic Processes, Stochastic Integration.
Amsterdam University of Applied Sciences
August 2022
Bachelor of Science, Applied Mathematics · Amsterdam, Netherlands
- Relevant coursework: Statistical Learning, Time Series, Deep Learning, Risk Theory.
§ 03
Projects
Selected work; full theory and code are on the Projects page.
- Extending the functional GARCH framework to a generalized autoregressive score (GAS) model to estimate and capture time-varying intraday volatility surfaces.
- Designed efficient estimation procedures using B-splines, applying Numba JIT compilation to enable scalable modelling of volatility surfaces from granular intraday return data.
October 2023 – August 2024
- Implemented Hierarchical Risk Parity via tree clustering using
scipy.cluster to stabilize high-dimensional asset allocation, bypassing classical covariance inversion to eliminate noise sensitivity.
- Generated a mean alpha premium of 3.9% above the benchmark across diverse simulated horizons in a look-ahead-free method that outperformed actively rebalanced benchmark portfolios.
§ 04
Publications
The Tukey depth under dependence
2026 · forthcoming
Zunnenberg, D. & Dürre, A. · Bernoulli
Absolute regularity and maximal moment inequalities
2026 · in preparation
Zunnenberg, D. & Dürre, A. · Unpublished manuscript
Functional location-scale models with robust observation-driven dynamics
2025
Lin, Y. & Lucas, A. · Tinbergen Institute Discussion Paper
Research assistantship contribution
§ 05
Leadership and Activities
Mathematical Institute, Leiden University · Board Member, Institute Council
September 2024 – August 2025
Leiden, Netherlands
- Represented the interests, opinions, and concerns of the PhD candidates.
- Contributed to improvements in budgeting, strategic planning, and day-to-day matters.
Department of Econometrics and Data Science, VU Amsterdam · Student Ambassador
October 2023 – April 2024
Amsterdam, Netherlands
- Participated in live Q&A sessions and (virtual) educational fairs.
- Assisted prospective students by answering questions on the online chat platform.
§ 06
Skills
Programming & Tools
- Python
- numba
- asyncio
- ccxt
- NumPy & SciPy
- SAS
- Bash
- Tardis.dev
Mathematics & Statistics
- Stochastic processes
- Empirical process theory
- Generic chaining
- Time series & volatility modelling
- Statistical estimation