---
title: 'Senior Data Scientist at OneStudyTeam'
canonical: 'https://feeny.ai/job/senior-data-scientist-onestudyteam-united-states-518fanfmmf07'
type: 'job'
last_seen: '2026-09-14'
---

# Senior Data Scientist at OneStudyTeam

- **Company:** OneStudyTeam
- **Location:** United States
- **Work type:** remote
- **Posted:** 2025-11-11
- **Last confirmed live:** 2026-09-14
- **Apply:** https://job-boards.greenhouse.io/onestudyteam/jobs/5704698004

## Job description

At OneStudyTeam (a Reify Health company), we specialize in speeding up clinical trials and increasing the chance of new therapies being approved with the ultimate goal of improving patient outcomes. Our cloud-based platform, StudyTeam, brings research site workflows online and enables sites, sponsors, and other key stakeholders to work together more effectively. StudyTeam is trusted by the largest global biopharmaceutical companies, used in over 6,000 research sites, and is available in over 100 countries. Join us in our mission to advance clinical research and improve patient care.

One mission. One team. That’s OneStudyTeam.

As a Senior Data Scientist, you will play a pivotal role in advancing Reify Health’s data-driven solutions for clinical trials. In this position, you will drive the development of statistical models and machine learning algorithms to improve patient enrollment and trial management. You’ll work in a highly regulated healthcare data environment, ensuring compliance with privacy standards while innovating on predictive analytics. This role involves close collaboration with cross-functional teams (especially ML Engineering) to translate complex data insights into practical, impactful tools for the clinical research community.

## What You’ll Be Working On

- Site Randomization Forecasting: Develop/enhance forecasting models for site randomization and enrollment trends, enabling better planning and resource allocation across trial sites.
- Patient Matching/Ranking Algorithms: Support projects to build algorithms that intelligently match patients to (or rank patients for) appropriate clinical trials, enhancing recruitment efficiency and patient inclusion.
- Develop Other Advanced Statistical Models: Create and refine predictive models (Bayesian inference, regression analysis, time-series forecasting) to address other key clinical trial challenges and improve decision-making.
- AI Monitoring and Bias Detection: Implement processes to monitor machine learning models in production, detecting bias or performance drift and ensuring models remain fair, accurate, and compliant.
- Data Pipeline & Tooling Development: Build and optimize data pipelines and analytical workflows using tools like AWS Athena, Redshift, SageMaker, and dbt, enabling scalable model training and deployment.
- Regulatory Compliance in Data Science: Ensure all data science practices align with HIPAA, GDPR, and other privacy regulations, integrating compliance considerations into model development and data handling.
- Cross-Functional Collaboration: Work closely with machine learning engineers, product managers, and other stakeholders to integrate models into products and clearly communicate insights and recommendations.

## What You Bring to OneStudyTeam

- Minimum Education:
- Minimum of Master’s or Ph.D. in Statistics, Data Science, Computer Science, or a related quantitative field (or equivalent professional experience).
- Minimum Experience:
- Minimum of 5+ years of hands-on data science or analytics experience, preferably in a healthcare, clinical research, or other highly regulated data environment.
- Statistical & ML Expertise: Strong foundation in statistical modeling and machine learning techniques, including experience with Bayesian methods, regression analysis, and time-series forecasting.
- Model Monitoring & Fairness: Proficiency in evaluating model performance and bias, with the ability to implement AI monitoring tools and bias mitigation strategies to ensure ethical and reliable outcomes.
- Technical Toolset: Advanced programming skills in Python (with libraries such as scikit-learn, PyMC, mlforecast, etc.) and SQL, as well as familiarity with data transformation tools like dbt.
- Cloud & Data Infrastructure: Hands-on experience with cloud-based analytics and ML services, especially AWS tools (Athena for querying, Redshift for data warehousing, SageMaker for model development/deployment).
- Regulated Data Handling: Experience working with sensitive healthcare or clinical trial data under regulations like HIPAA and GDPR, demonstrating a deep commitment to data privacy and security best practices.
- Collaborative Communication: Excellent teamwork and meticulous verbal/written communication abilities, with a track record of partnering with engineering and product teams to translate data science work into actionable business solutions.
- Domain Knowledge: Understanding of clinical research or health-tech environments is highly valuable, including insight into clinical trial operations and a passion for improving patient outcomes through data.

The expected pay range for this role is $140,000 - $190,000 USD per year for full time team members.

#LI-Remote We value diversity and believe the unique contributions each of us brings drives our success. We do not discriminate on the basis of race, sex, religion, color, national origin, gender identity, age, marital status, veteran status, or disability status.

Note: OneStudyTeam is unable to sponsor work visas at this time. If you are a non-U.S. resident applicant, please note that OneStudyTeam works with a Professional Employer Organization.

As a condition of employment, you will abide by all organizational security and privacy policies.

This organization participates in [E-Verify](https://e-verify.uscis.gov/web/media/resourcesContents/E-Verify_Participation_Poster.pdf) (E-Verify's Right to Work guidance can be found [here](https://www.e-verify.gov/sites/default/files/everify/posters/IER_RighttoWorkPoster.pdf)).

Mandatory Employer Disclosures: Notice to Illinois applicants: Applicants are not obligated to disclose expunged juvenile records or adjudication, arrest, or conviction. Notice to Connecticut applicants: OneStudyTeam may require applicants to submit to a urinalysis drug test in connection with an application for employment. Notice to Arizona, Georgia, Indiana, and North Dakota applicants: OneStudyTeam complies with applicable laws prohibiting smoking in and around places of employment. Notice to Massachusetts applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Notice to Rhode Island applicants: OneStudyTeam complies with Rhode Island law prohibiting smoking in enclosed areas within places of employment. OneStudyTeam is also subject to is subject to Chapters 29–38 of Title 28 of the Rhode Island General Laws. Notice to Maryland applicants: UNDER MARYLAND LAW, AN EMPLOYER MAY NOT REQUIRE OR DEMAND, AS A CONDITION OF EMPLOYMENT, PROSPECTIVE EMPLOYMENT, OR CONTINUED EMPLOYMENT, THAT AN INDIVIDUAL SUBMIT TO OR TAKE A LIE DETECTOR OR SIMILAR TEST. AN EMPLOYER WHO VIOLATES THIS LAW IS GUILTY OF A MISDEMEANOR AND SUBJECT TO A FINE NOT EXCEEDING $100.

## About OneStudyTeam

## Company Overview
- **One-liner**: OneStudyTeam provides a cloud-based platform, StudyTeam, that accelerates patient enrollment in clinical trials by streamlining workflows for research sites and giving sponsors real-time visibility into recruitment progress.
- **Entity Type**: Private (part of Reify Health portfolio)
- **Headquarters**: Boston, Massachusetts, United States (33 Arch Street, 17th Floor)
- **Founded**: 2012
- **Founders**: Not publicly disclosed (entity formerly known as Reify Health, Inc.)

## Core Business
- **Primary industry**: Clinical trial technology / Healthcare IT (patient enrollment management)
- **Target customers**: Biopharmaceutical sponsors (e.g., Amgen, AstraZeneca, Eli Lilly) and clinical research sites worldwide (B2B, Enterprise)
- **Mission**: To bring new therapies to market faster by enabling sites and sponsors to work together as one team using common technology.

## Products & Services
- **StudyTeam (Patient Enrollment Management Platform)**: A cloud-based SaaS platform that digitizes site workflows, enables patient pre-screening, provides sponsor dashboards for enrollment tracking, and reduces manual/duplicate tasks for sites. Used in 10,000+ research sites across 100+ countries.

## Market Standing
- **Valuation**: Not disclosed
- **Key Metric**: Total funding (private) – not publicly available (part of Reify Health, which has raised funding historically, but separate amounts for OneStudyTeam are not disclosed)
- **Notable Investors/Partners**: Trusted by 70% of sponsors with the most clinical trials, including Amgen, AstraZeneca, and Eli Lilly & Co. Partners include Medidata Solutions, Oracle, and Massachusetts General Hospital (as talent sources).
- **Growth Signals**: Reached 10,000 global research sites in 2024; operates in 10 countries; has 137 employees; growing jobs postings monthly (+14.3%) and yearly (+100%) despite recent layoffs (approximately 25% of workforce in 2026).

## Competitive Advantages
- **Network effects**: 10,000+ sites and 70% of top sponsors already on the platform, creating a strong data network and switching costs.
- **Site-first approach**: Reduces site burden, which is a critical pain point in clinical trials, leading to higher site satisfaction and sponsor adoption.
- **Global reach**: Available in 100+ countries, covering diverse regulatory environments.
- **Integrated workflows**: Replaces fragmented tools and manual processes with a single, collaborative platform.

## Strategic Focus
- **Growth**: Expanding global site network and deepening sponsor relationships.
- **Product development**: Enhancing machine learning and AI capabilities (e.g., open roles for Senior ML Engineer, Senior Data Scientist) to improve enrollment predictions and site matching.
- **Operational efficiency**: Balancing a leaner team post-layoff while maintaining platform innovation.
- **Sales & value**: Hiring a Director of Sales Strategy & Value to drive commercial success.

## Why Work Here
- **Culture & values**: Emphasizes ownership, continuous curiosity, integrity, and team-first mentality. Mission-driven work directly impacting life-saving therapies.
- **Remote/hybrid**: All current US job listings are remote (as of July 2026). Global team across 10 countries.
- **Benefits**: 14 weeks of 100% paid parental leave; 4% employer 401k match; $650 annual home office stipend; MacBook Pro provided; week-long company-wide end-of-year shutdown.
- **Engineering culture**: Product-focused engineering teams with autonomy, learning from mistakes, and a "continuous curiosity" ethos.
- **Challenges**: Recent layoffs (approx. 25% of workforce in 2026) and a mixed Glassdoor rating (2.7/5 overall, with culture and career growth scoring lower). Job seekers should weigh mission impact against organizational stability.

## Sources
1. [OneStudyTeam.com](https://www.onestudyteam.com/)
2. [Careers Page - Greenhouse](http://job-boards.greenhouse.io/onestudyteam)
3. [LinkedIn Company Profile](https://www.linkedin.com/company/onestudyteam)
4. [CB Insights Company Profile](https://www.cbinsights.com/company/onestudyteam)

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