Javier Guillén
Senior Business Analyst - Product Management at Aquis Exchange
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJavier Guillén is a Senior Business Analyst in product management who blends quantitative finance training with hands-on engineering delivery in ultra-low latency trading environments. With an MSc in Quantitative Finance and ICAWM/CISI credentials, he translates market structure and regulatory requirements into technical specifications, driving multiple cross-asset product initiatives from planning through Agile delivery. He previously ran a quantitative consulting and development practice, building ML forecasting models, trading signals, real-time data pipelines and backtesting frameworks—demonstrating both research rigor and production engineering. Based in London and backed by experience leading teams and commercial strategy in retail operations, he brings a rare combination of market microstructure expertise, product ownership, and operational pragmatism. Notably, his background spans sports management and computer science, reflecting a multidisciplinary approach to problem solving and stakeholder collaboration.
4 years of coding experience
CISI Level 4 International Certificate in Advanced Wealth Management, Finanzas, general, CISI Level 4 International Certificate in Advanced Wealth Management, Finanzas, general at The Chartered Institute for Securities & Investment (The CISI)Sports Management, Business Administration and Management, General, Sports Management, Business Administration and Management, General at Instituto Superior da MaiaIntensification in derivatives: Options and Futures, Finance, Intensification in derivatives: Options and Futures, Finance at Centro de e-Learning UTN FRBASport Science, Sport Management & Sport Performance, Sport Science, Sport Management & Sport Performance at Universidad de MurciaMaster of Science - MS, Quantitative Finance, Master of Science - MS, Quantitative Finance at Universidad Nacional de Educación a Distancia - U.N.E.D.
Spanish, English, Portuguese
Stackoverflow
499reputation
50kreached
3answers
0questions
Github Skills (19)
prediction10
hypothesis-testing9
espn9
regression-models9
modeling8
forecasting8
statsmodels8
statistics8
econometrics8
generalized-linear-models7
python7
data-analysis6
data-reader6
yahoo-finance6
backtrader6
Programming languages (1)
Github contributions (5)
JavierCastilloGuillen/Quantitative_Toolbox
Apr 2022 - Mar 2023
Contributions:33 commits, 30 pushes, 1 branch in 10 months
JavierCastilloGuillen/Market_Screener
Aug 2021 - Sep 2021
Contributions:32 commits, 20 pushes, 1 comment in 26 days
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