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Jeffrey Xu Email & Phone Number

CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities at Citadel Securities
Location: San Francisco Bay Area, United States 14 work roles 3 schools
1 work email found @togos.com LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

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Current company
Role
CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities
Location
San Francisco Bay Area, United States

Who is Jeffrey Xu? Overview

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Quick answer

Jeffrey Xu is listed as CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities at Citadel Securities, based in San Francisco Bay Area, United States. AeroLeads shows a work email signal at togos.com and a matched LinkedIn profile for Jeffrey Xu.

Jeffrey Xu previously worked as Incoming Quantitative Trader at Citadel Securities and Quantitative Trading Intern at Optiver. Jeffrey Xu holds Bachelor'S Degree, Computer Science from Harvard University.

Company email context

Email format at Citadel Securities

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{first}.{last}@togos.com
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AeroLeads found 1 current-domain work email signal for Jeffrey Xu. Compare company email patterns before reaching out.

Profile bio

About Jeffrey Xu

Jeffrey Xu is a CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities at Citadel Securities. He possess expertise in leadership, data science, algorithms, website building, node.js and 31 more skills.

Listed skills include Leadership, Data Science, Algorithms, Website Building, and 32 others.

Current workplace

Jeffrey Xu's current company

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Citadel Securities
Citadel Securities
CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities
AeroLeads page
14 roles

Jeffrey Xu work experience

A career timeline built from the work history available for this profile.

Incoming Quantitative Trader

Current

Miami, Florida, Us

Sep 2023 - Present

Quantitative Trading Intern

Amsterdam, Nl

Jun 2023 - Aug 2023

Quantitative Trading Analyst Intern

Drw

Chicago, Il, Us

Jun 2022 - Aug 2022

Managing Director

Cambridge, Massachusetts, Us

Did market entry research for a Fortune 500 Company. Created slides with relevant consumer and product information and presented with strategic recommendations. Conducted research on competitors and strategic partnerships for maximizing consumer acquisition with an emphasis on sustainability.

Sep 2020 - Jul 2022

Chief Financial Officer

Cambridge, Massachusetts, Us

My role is consulting and creating software for an Chicago-based educational technology startup. Using various Natural Language Processing frameworks in R and Python, we try to analyze student writing performance and optimize tailored learning using AI and Deep Learning.

Jan 2021 - Jun 2022

Data Science Intern

Chicago, Illinois, Us

Created NLP-based Python machine learning model with 90% identification accuracy. Built automated highlighting tool hosted using AWS Lambda and Sagemaker for deploying ML models saved in Hugging Face. Trained with BERT, bag of words, and word2vec models on data queried using SQL with 87% validated accuracy on identifying CERCA elements. Built front-end testing API using React.js deployed with Chalice.

Jun 2021 - Mar 2022

Instructor

Palo Alto, California, Us

Developed and taught introductory yet comprehensive ML/AI curriculum to high schoolers over two 10-day programs, with linear and logistic regression, sentiment analysis, convolutional neural networks, and computer vision in Google Colaboratory using TensorFlow libraries, Pandas, NumPy, Sci-kit Learn, and more.

Jun 2021 - Aug 2021

Software Engineer Intern

Axonbytes

Researched blockchain technology and its applications in cryptocurrency.Worked to create a coin to represent underlying real estate assets to streamline investing and membership, researching necessary steps for an ICO. Created Excel sheet with embedded stochastic calculus formulas to model price change of cryptocurrency for potential transactions and payments in coin.

May 2021 - Aug 2021

Frontend Developer

Boston, Us

Developed responsive homepage, module structure, and interactive sidebar using React.js. Created REST APIs to take GET and POST requests to interact with backend databases. Altered CSS to match company colors and created modules to test requests and functionality. Did target consumer research for startup.Centralizing, personalizing, and equating online education through AI and UX designCreating and designing the frontend of the website using React.js and other Node frameworksIncubated at the Harvard Innovation Labs via the Venture Program

Dec 2020 - Apr 2021

Founder, Head Coach

Science Bowl Quarantine Boot Camp

Created, pitched, and advertised a 15-week curriculum designed to teach students subjects across math, chemistry, physics, biology, and earth science. Integrated a "bot" on Discord from GitHub to mimic the real Science Bowl competition rules, and also coached students on buzzing and answering strategy. Taught over 40 students throughout 7 different sessions, 10 hours/week for 15 weeks.

Mar 2020 - Jun 2020

Research Intern

Stanford, Ca, Us

Worked with professor and team to design an affordable scanning electron microscope for less privileged communities, institutions, and people. Helped with designing x-y movement of the stage for the microscope as well as creating a vacuum to maximize mean free path of electrons in electron beam. Optimized image resolution while reducing cost of materials and construction.

Aug 2018 - Jun 2020

Program Lead

Math&Coding

Pitched 3-week CS curricula in Java, C++, and Python to local libraries as part of the organization. Created my own 3 session C++ curriculum to introduce underprivileged kids in grades 6-10 into computer science and garner their interest for programming.

Jan 2018 - Feb 2020

Head Coach

Toga Junior Math Club

Coached middle school students in contest math, preparing them for contests like the MAA AMC series as well as Mathcounts. Designed a yearlong curriculum in math subjects including combinatorics, number theory, algebra, and geometry. Taught a total of 50+ students directly over the course of 4 years.

Aug 2017 - Feb 2020

Summer Research Intern

Iowa City, Iowa, Us

Worked on correcting for the proximity effect in electron beam lithography. Ran several simulations using Layout BEAMER software as well as resist-coated silicon wafer samples through 8+ hour exposures, dry-etched, nano-imprint, and finally used EBL system's scanning electron microscope capabilities to ensure high resolution, low critical dimension of nanoscale designs.

Jun 2018 - Aug 2018
3 education records

Jeffrey Xu education

Bachelor'S Degree, Computer Science

Harvard University

Very High Honors

Saratoga High School

Concurrent Enrollment, Mathematics

West Valley College
FAQ

Frequently asked questions about Jeffrey Xu

Quick answers generated from the profile data available on this page.

What company does Jeffrey Xu work for?

Jeffrey Xu works for Citadel Securities.

What is Jeffrey Xu's role at Citadel Securities?

Jeffrey Xu is listed as CS + Stats @ Harvard | Incoming Quant Trader @ Citadel Securities at Citadel Securities.

What is Jeffrey Xu's email address?

AeroLeads has found 1 work email signal at @togos.com for Jeffrey Xu at Citadel Securities.

Where is Jeffrey Xu based?

Jeffrey Xu is based in San Francisco Bay Area, United States while working with Citadel Securities.

What companies has Jeffrey Xu worked for?

Jeffrey Xu has worked for Citadel Securities, Optiver, Drw, Harvard Undergraduate Cbe, and Harvard Undergraduate Data Analytics Group.

How can I contact Jeffrey Xu?

You can use AeroLeads to view verified contact signals for Jeffrey Xu at Citadel Securities, including work email, phone, and LinkedIn data when available.

What schools did Jeffrey Xu attend?

Jeffrey Xu holds Bachelor'S Degree, Computer Science from Harvard University.

What skills is Jeffrey Xu known for?

Jeffrey Xu is listed with skills including Leadership, Data Science, Algorithms, Website Building, Node.Js, Matlab, Teaching, and R (Programming Language.

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