
- Started my own small business.
My name is James Guo 过仲懿. I was made in Wuxi 🇨🇳 and adopted by California 🇺🇸.
I am a data scientist with 5+ years of experience leading projects end-to-end, including data cleaning, mining, exploratory data analysis, statistical analyses and machine learning modeling, data visualization, and scientific writing. I provide evidence-based recommendations through written reports and presentations for both technical and non-technical audiences.
Outside of work, I love body building, swimming, and MORE on my Instagram!
Let's keep in touch!





permuteDE) with a permutation testing-based pipeline to reduce false positives in differential gene expression analysis in Alzheimer's disease.




permuteDE
How much Bitcoin should a moderate-risk household hold alongside an ETF portfolio? This project answers this question end-to-end: data collection, descriptive analysis, mean–variance optimization under multiple risk constraints, and a forward-looking Black–Litterman adjustment.
Universe: SPY, VEU, TLT, GLD, and BTC-USD; risk-free rate built dynamically from the 3-month T-Bill (^IRX); 2,917 aligned trading days (2014-09-17 to 2026-04-21). Target client: 5–10 year horizon, long-only, no leverage, ~15% annualized vol budget.
cvxpy (OSQP / SCS): max-Sharpe, vol caps at 10% and 15% p.a., a daily 95% Expected Shortfall cap at 5% and a loose 25% sanity check, and a max-return BTC ≤ 10% cap.
Daily long/short strategy on ~620 USDT-quoted Binance perpetual futures (2020 – 2026, 381k symbol-days). Pulled hourly klines and funding rates from a ClickHouse warehouse, built seven literature-backed factors as cross-sectional rank z-scores, validated them with Fama–MacBeth regressions, and traded a top-N / bottom-N portfolio rebalanced daily — benchmarking a transparent factor blend against a stack of ML models.
ClickHouse binance database, pushing OHLCV / funding aggregation server-side (argMin / argMax / HAVING hours = 24) so 11M hourly rows never crossed the wire; cached as parquet and applied a $5M 30-day average dollar-volume filter to control for survivorship and liquidity.permuteDE: Permutation Testing Pipeline for Differential Gene Expression Analysis
Differential expression analyses are susceptible to false positives. permuteDE uses permutation testing to identify which comparisons have a higher number of significant differentially expressed features than would be expected by chance.
permuteDE R package, overseeing maintenance, debugging, and feature development.Seurat objects and BPCells matrices.permuteDE pipeline across eight datasets to demonstrate its real-world utility.Note: Currently we are finalizing the package and analyses; permuteDE will be released upon manuscript publication.
Figure Source: Emani et al., Science 2024 · Pampari et al., bioRxiv preprint 2025 · Ameen et al., Cell 2022
I joined the PsychENCODE project at Prof. Anshul Kundaje's lab. I led this project analyzing scRNA-seq and scATAC-seq multiome data from three brain regions to investigate cell type-specific chromatin accessibility and gene expression patterns underlying schizophrenia and bipolar disorder to better understand their pathogeneses.
ChromBPNet models to identify causal genomic variants and their downstream effects on chromatin accessibility and gene regulation.
Figure Source: National Cancer Institute 2019 · Lowder et al., Cancer Letters 2022 · Langfelder & Horvath, BMC Bioinformatics 2008
Black men face higher prostate cancer incidence and mortality than White men. This project leverages LC-MS metabolomics on a cohort of 34 men (17 Black, 17 White) from the IRONMAN Registry to characterize metabolites associated with such disparities. I presented this project as my Master's thesis.
This project visualized the interplay between life expectancy (measured by central death rates) and economic development, healthcare access, energy production, and consumption patterns.
Figure Source: Argelaguet et al., 2018 · Growing Life
In this project, I practiced NIH-style grant proposal writing by developing a theoretical proposal that integrates single-cell multiomics data to investigate the molecular mechanisms using factor analysis underlying Alzheimer's Disease.
This project evaluated associations between multiple exposures (age [categorical and continuous], sex, race, and smoking) and assessed alcohol as an effect modifier of the smoking–SAH relationship.
Nominated as Honorable Mention for Best UI for Hack Challenge Spring 2022.
This project developed an iOS app to ease the booking of a study space on campus in one of Cornell's many open libraries and study spaces.
Interested in project collab? Email me!
Led discussions, graded homework and exams, held office hours, and proofread problem sets before release.
Graded homework and exams.
Led discussions, graded homework and assignments, held office hours, and bridged communication between professors and students.
CRISPR/Cas9 knockout work on fruit flies; guided 20 students in mutation analysis on the UCSC Genome Browser.
[1] Bendall, S., Ee, R., Amouzgar, M., Afaghani, J., Vijayaragavan, K., Cannon, B., Mrdjen, D., Tebaykin, D., Spence, A., Sant, C., Aley, D., Guo, Z., Sedov, K., Zafar, F., Montine, K., Perna, A., Serrano, G., Beach, T., Angelo, M., Schüle, B., Corces, M.R., Montine, T.. APOE4 Drives Uniquely Dysfunctional Human Microglial States in Alzheimer’s Disease. Cell, 2026.
[2] Shin, J.‡, Brady, E.‡, Chen, C., Lauderdale, K., Agrawal, A., Zhang, Y., Jiang, X., Nambiar, P., Herbert, J., Mallen, D., Ly, K., Guo, Z., Sant, C., Thomas, R., Miller, S., Cobos, I., Palop, J.. APOE4 and Aβ synergize to drive neuronal network dysfunction and lysosomal-ER proteostasis dysregulation in the preclinical stages of Alzheimer's disease. Nature Neuroscience, 2025.
[3] Poster session presenter and first author, Causal effect of type II diabetes on prostate cancer in the East Asian population: A two-sample Mendelian randomization study. AACR Special Conference: Aging and Cancer, 2022.
[4] (Aiming for BMC Medicine) Guo, Z.‡, Chen, D.‡, Stopsack, K. H., Soule, P., Ajit, D., Ramamoorthy, P., Hoffmann, T. J., Chan, J. M., Mucci L. A., Graff, R. E.. Metabolomic Disparities Between Black and Non-Hispanic White Men with Metastatic Hormone-Sensitive Prostate Cancer: A Pilot Study. (Title is tentative.)
[5] (Aiming for Cell) Qu, P., Wang, T., Jessa, S., Guo, Z., Guo, H., Purmann, C., Monte, E., Jiang, L., Yang, X., Zhou, B., Kundu, S., Kundaje, A., Wong, W., Hallmayer, J. F., Urban, A. E., Snyder, M. P.. Multi-modal functional genomics analysis of bipolar disorder and schizophrenia. (Title is tentative.)
[6] (Aiming for Nature Neuroscience) Sant, C., Guo, Z., Corces, M. R.. Preventing false discoveries in Alzheimer's disease single-cell sequencing data using permutation testing. (Title is tentative.)
‡ indicates co-first authorship.
JavaScript
PyCharm
VS Code
Xcode
Eclipse
Terminal
SSH
AWS EC2
Conda
GitHub
MS Word
MS Excel
MS PowerPoint
MS Outlook
Illustrator
Photoshop
Procreate
After Effects
08/28/2026: Added Corcept experience.
04/28/2026: Redesigned the layout of the experience section.
04/11/2026: Added more animations, and filtering functionality.
03/26/2026: Added animations and redesigned homepage layout by vibe coding using Claude.
11/20/2024: Updated research experience. I will update project experience and work experience shortly.
11/12/2024: Minor updates applied to the certification section.
08/12/2024: I redesigned my website. Now I'm slowly migrating project experience and work experience over.