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Alumni Profiles

We are delighted to showcase our first round of Alumni Profiles about how their careers have progressed since leaving the department.  We hope you enjoy reading them.  If you would be interested in providing a profile for our website, please complete the form at the bottom of this page.

Christiana Kartsonaki

(MSc in Applied Statistics and DPhil in Statistics – matriculated 2008)

Christiana Kartsonaki is a Senior Statistician at the Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU) in the Nuffield Department of Population Health, University of Oxford. She is working on the epidemiology of cancer and other diseases, mainly in the China Kadoorie Biobank, as well as on related statistical methods.

She has a degree in Mathematics, an MSc in Applied Statistics and a DPhil in Statistics. She has previously worked in the Department of Oncology of the University of Oxford and at the Centre for Cancer Genetic Epidemiology in the Department of Public Health and Primary Care of the University of Cambridge.

Jason Green

(MSc in Applied Statistics – matriculated 2010)

Jason is an Executive Director at Morgan Stanley and specialises in the implementation of electronic foreign exchange trading solutions, primarily for systematic asset managers and quantitative hedge funds. His role involves the deployment of algorithmic trading strategies, transaction cost analysis and FIX connectivity solutions, thereby helping clients achieve automation in their execution workflows. He is well versed in market microstructure and works closely with quantitative researchers to help identify and optimise client trading behaviour.

Jason joined the Department of Statistics at Oxford in 2010 as a postgraduate student and member of Jesus College, where he completed a Master of Science in Applied Statistics. He studied under the supervision of Dr Amber Tomas and Professor Brian D. Ripley, with his dissertation focusing on the analysis of networks in relation to voting biases. Prior to joining Oxford, Jason studied Mathematics with Statistics at the University of Nottingham, where he graduated with First Class Honours.

Since completing his postgraduate studies, Jason has accrued more than ten years of financial services experience across various sales, structuring and investment banking roles. He is actively involved in mentorship and recruitment initiatives, regularly visiting university campuses to help students make important decisions around career choices. He has also contributed to the Jesus Entrepreneur Network (JEN) and partakes in several other Oxford alumni events.

Suzanne Pfeifer

(DPhil in Statistics – matriculated 2007)

Susanne earned her DPhil in Statistics advised by Professor Gil McVean, working on the statistical challenges involved in the estimation of variation in mutation and recombination rates from high throughput sequencing data, with applications to primate population genetics. In 2017, Susanne founded the Pfeifer Lab as an Assistant Professor in the School of Life Sciences at Arizona State University, Tempe, AZ, US. If you would like to catch up or learn more about her lab’s work, please visit

Dirk Bester

(DPhil in Statistics – matriculated 2014)

After his degree, Dirk worked as Science Officer at Sciemus, pricing insurance on rockets, satellites, and power stations. Thereafter he joined Barclays, where he worked as a treasury quant. In 2022, he joined Nplan as tech lead for their insurance offering.

Robert Cuffe

(DPhil & MSc in Applied Statistics – matriculated 2001)

After taking the department’s MSc in Applied Statistics and spending three years working as an applied statistician while studying for a DPhil, Robert went to work in drug research.

He spent a little over a decade working at GSK, mainly on clinical trials of treatments for the prevention and treatment of HIV.

While he was there, he ran the UK’s professional body for pharmaceutical statisticians (PSI), worked with the Science Media Centre to set up a statistical briefing service for science journalists and became a “statistical ambassador” for the Royal Statistical Society.

Since late 2017, Robert has been the head of statistics at BBC News, where he helps journalists find and tell better stories with numbers. This involves some statistical consultancy, some reporting and a good deal of work with data journalists.

Robert still uses some of the skills he acquired during his time in Oxford. He uses a good deal less of the theory but most likely wouldn’t be where he is today had he not learnt it.

Yuchen  Xia

(MMath, Mathematics and Statistics – matriculated 2006)

Since graduating from Oxford University, Yuchen has developed a career in the financial industry as a professional investor and business builder. Yuchen is passionate about developing and delivering trustworthy and efficient solutions by combining investment knowhows and innovative data science techniques.

Yuchen is currently the co-founder and director of Genuine Impact, a financial technology firm focusing on delivering high-quality investment intelligence and market insights to retail investors. Yuchen also founded New Horizon Global, an FCA authorised and regulated investment firm that provides bespoke financial advisory service to business and individuals.

Prior to his entrepreneurial experience, Yuchen also worked for various leading financial institutions. Earlier in his career he was an investment banking analyst at Morgan Stanley, and subsequently a multi-asset portfolio manager at BlackRock, where he was responsible for managing investments for some of the firm’s key clients in Europe and the Middle East. In 2015 Yuchen joined Moneyfarm, one of Europe’s leading digital wealth managers, as a founding members of its UK operation where he helped to build the firm’s investment capability and strategic partnerships.

Yuchen also currently hold non-executive board positions at several early stage businesses in life science and sports industry.

Eleanor Law

(DPhil Systems approaches to biomedical science – matriculated 2013)

Eleanor is a Principal Statistical Methodologist at the UK Office for National Statistics, currently working on data science projects in the field of population statistics.

Since completing her DPhil in structural bioinformatics supervised by Professor Charlotte Deane, she has worked on methodology for official statistics using a range of survey, administrative, commercial and open data sources. She has contributed to improving and developing new sample design and estimation methods for surveys including the International Passenger Survey, Wealth and Assets Survey and Coronavirus Infection Survey. Currently a main focus of her work is to explore the application of machine learning methods for official statistics, in order to enhance, or move towards replacing, existing survey-based outputs.




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