Samir Rachid Zaim

Biostatistician | Data Scientist | Machine Learning Scientist

About Me

Applied scientist with deep expertise in machine learning, statistics, and high-dimensional biomedical data, including genomics and immunology. Technical leader with hands-on IC and people-management experience, known for translating research into validated, scalable solutions. Proven collaborator across science, informatics, and product teams in high-velocity, ambiguous environments.

Positions Held

Education

Technical Skills

Biostatistics and Machine Learning Experience

Programming Experience

Technical Leadership Experience

Technical Leadership Management

Publications

Total Citations

204

H-index

9

i10-index

9

Data from Google Scholar. Last updated: January 21, 2026

2025

Multi-omic profiling reveals age-related immune dynamics in healthy adults
Nature. 2025 Q Gong, M Sharma, MC Glass, EL Kuan, A Chander, M Singh, SR Zaim, ...
Citations: 10
DOI Link

Progression to rheumatoid arthritis in at-risk individuals is defined by systemic inflammation and by T and B cell dysregulation
Science translational medicine. 2025 Z He, MC Glass, P Venkatesan, ML Feser, L Lazaro, LY Okada, NTT Tran, SR Zaim, ...
Citations: 5
DOI Link

Serum proteomic signatures before the diagnosis of rheumatoid arthritis: evolving biologic pathways and specific periods of disease development
Arthritis & Rheumatology. 2025 SR Zaim, AK Savage, MA Gillespie, JD Castillo, C Bennett, TR Torgerson, ...
Citations: 2
DOI Link

Dissecting type I and II interferon impacts on human immune cells in disease by a cell type-specific interferon response atlas
bioRxiv. 2025 N Moss, C Sakai, SN Kaul, LT Graybuck, SR Zaim, ML Angus-Hill, ...
Citations: 1
DOI Link

2024

Longitudinal multi-omic immune profiling reveals age-related immune cell dynamics in healthy adults
bioRxiv. 2024 Q Gong, M Sharma, EL Kuan, MC Glass, A Chander, M Singh, SR Zaim, ...
Citations: 19
DOI Link

MOCHA's advanced statistical modeling of scATAC-seq data enables functional genomic inference in large human cohorts
Nature Communications. 2024 SR Zaim, MP Pebworth, I McGrath, L Okada, M Weiss, J Reading, ...
Citations: 8
DOI Link

Systemic inflammation and lymphocyte activation precede rheumatoid arthritis
bioRxiv. 2024 Z He, MC Glass, P Venkatesan, ML Feser, L Lazaro, LY Okada, NTT Tran, SR Zaim, ...
Citations: 3
DOI Link

2023

Trimodal single-cell profiling reveals a novel pediatric CD8αα+ T cell subset and broad age-related molecular reprogramming across the T cell compartment
Nature immunology. 2023 Z Thomson, Z He, E Swanson, K Henderson, C Phalen, SR Zaim, ...
Citations: 35
DOI Link

2021

'Single-subject studies'-derived analyses unveil altered biomechanisms between very small cohorts: implications for rare diseases
Bioinformatics. 2021 D Aberasturi, N Pouladi, SR Zaim, C Kenost, J Berghout, WW Piegorsch, ...
Citations: 6
DOI Link

2020

Assessing reproducibility and veracity across machine learning techniques in biomedicine: a case study using TCGA data
International Journal of Medical Informatics. 2020 AA Kim, SR Zaim, V Subbian
Citations: 20
DOI Link

Interpretation of 'Omics dynamics in a single subject using local estimates of dispersion between two transcriptomes
AMIA Annual Symposium Proceedings. 2020 Q Li, SR Zaim, D Aberasturi, J Berghout, H Li, F Vitali, C Kenost, ...
Citations: 17
DOI Link

binomialRF: interpretable combinatoric efficiency of random forests to identify biomarker interactions
BMC Bioinformatics. 2020 SR Zaim, J Kenost, C Berghout, W Chiu, L Wilson, HH Zhang, ...
Citations: 13
DOI Link

Personalized beyond precision: designing unbiased gold standards to improve single-subject studies of personal genome dynamics from gene products
Journal of Personalized Medicine. 2020 SR Zaim, C Kenost, HH Zhang, YA Lussier
Citations: 5
DOI Link

How a team of Venezuelan expats is fighting COVID-19 at home
Nature. 2020 J Figueira, SR Zaim
Citations: 4
DOI Link

2019

Evaluating single-subject study methods for personal transcriptomic interpretations to advance precision medicine
BMC medical genomics. 2019 SR Zaim, C Kenost, J Berghout, F Vitali, HH Zhang, YA Lussier
Citations: 15
DOI Link

2018

Emergence of pathway-level composite biomarkers from converging gene set signals of heterogeneous transcriptomic responses
PACIFIC SYMPOSIUM ON BIOCOMPUTING. 2018 SR Zaim, Q Li, AG Schissler, YA Lussier
Citations: 17
DOI Link

ICD-10 procedure codes produce transition challenges
AMIA Summits on Translational Science Proceedings. 2018 AD Boyd, C Kenost, SR Zaim, J Krive, M Mittal, RA Satava, M Burton, ...
Citations: 11
DOI Link

Selected Projects

Biomarkers to predict rheumatoid arthritis (collab with Dept. of Defense)

I lead a biomarker serum proteomics study in collaboration with the Department of Defense where we applied linear mixed effects and prediction modeling to better understand disease pathogenesis and predict disease onset. The study resulted in a publication in Arthritis & Rheumatology, a conference presentation at ACR 2023, and a patent application.

Tools: R, mixed effect models, elastic net, ggplot2

BinomialRF: Developing Machine Learning Modules to detect feature interactions

I developed a novel machine learning algorithms to answer the basic question: if I know some features are important, which combinations of these are important together, and can I quantify how important these combinations are? I led this research from start to finish, including the statistical derivation, simulation studies, manuscript writing, and developed the accompanying machine learning software package in both R & python.

Tools: R, lme4, mice

Epidemiological Long COVID Survey Study in WA Latino Communities

Co-led a survey study with the Latino Center for Health at the University of Washington to better understand the impact of Long COVID in Latino communities in Washington State. Responsibilities included designing the survey, randomization, data analysis, and manuscript writing. We presented findings at the WA Public Health Agency, Northwest Migrant Health Conference, and the UW Latino Center for Health Symposium. Additionally, we spoke with the Latino News Network about the study and its findings, and published this in the Journal of General Internal Medicine.

Curriculum Vitae

View or download my full CV:

Download CV (PDF)

Resume

View or download my resume:

Download Resume (PDF)

Contact

Email: samir[dot]rachid[dot]zaim[at]gmail[dot]com
GitHub: https://github.com/SamirRachidZaim
Google Scholar: scholar.google.com/SamirRachidZaim
LinkedIn: linkedin.com/SamirRachidZaim