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jugular TrujilloJT
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jugular Trujillo

@jugulartrujillo

Quantitative Researcher translating mathematics into portfolio optimization and predictive modeling strategies.

Poland
Message

What I'm looking for

I’m looking for a role where I can formulate, empirically validate, and implement quantitative strategies and portfolio optimization models—using machine learning and strong model validation—to deliver measurable results.

I’m a Quantitative Researcher with a mathematician’s foundation, focused on formulating, empirically validating, and implementing quantitative strategies—especially portfolio optimization models.

Across my roles, I’ve worked on quantitative equity strategies development (fundamentals and machine learning), quantitative model validation, and producing clear model documentation. I aim to turn rigorous analysis into strategies that hold up in practice.

My work spans the full modeling cycle: from validating assumptions to optimizing implementations, using tools and methods like Scala, statistics, and convex optimization. I also apply predictive modeling approaches informed by my ML research.

I bring a strong competition and research mindset, with a proven track record across mathematics (Putnam), trading (IMC top 1%), and ML research (two Kaggle medals). I’m energized by problems where careful reasoning and measurable performance matter.

Experience

Work history, roles, and key accomplishments

Citi logoCI

Contractor

Apr 2022 - Sep 2023 (1 year 5 months)

Contractor at Citi supporting quantitative work from Apr 2022 to Sep 2023.

Superfund logoSU

Quantitative Research Analyst

Sep 2020 - Apr 2022 (1 year 7 months)

• Quantitative Equity Strategies Development (Fundamentals, Machine Learning)

UBS logoUB

Quantitative Analyst

Nov 2019 - Aug 2020 (9 months)

• Quantitative Model Validation
• Reading and writing model documentation

UBS logoUB

Intern

Jun 2018 - Sep 2018 (3 months)

• Tested and replicated rating, exposure, and stress credit models using mostly R programming and MS Excel
• Prepared model tests in R

UB

Credit Risk Methodology

UBS

Nov 2017 - Feb 2018 (3 months)

Credit Risk Methodology team member at UBS, providing model sensitivities and updating parameters for regulatory reports.

UBS logoUB

Credit Risk Methodology team

Nov 2017 - Feb 2018 (3 months)

• Provided model sensitivities and updated parameters for regulatory reports.
• Made automatizing scripts in R

Education

Degrees, certifications, and relevant coursework

UU

Ukrainian Physics Mathematics lyceum Kyiv national Taras Shevchenko University

JU

Jagiellonian University

Master's degree, Financial Mathematics

2017 - 2019

JU

Jagiellonian University

Bachelor's degree, Financial Mathematics

2015 - 2017

TK

Taras Shevchenko National University of Kyiv

Bachelor's degree, Applied Mathematics

2012 - 2015

UL

Ukrainian Physics Mathematics Lyceum

Studied at Ukrainian Physics Mathematics Lyceum affiliated with Taras Shevchenko National University of Kyiv.

Tech stack

Software and tools used professionally

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