Causal Inference Lead Modeler

Location: Cambridge, MA

Type: Full Time

Min. Experience: Entry Level

Company Summary

Imagine if we could match patients with the treatments that prove the most effective for them . . .
GNS Healthcare applies causal machine learning and simulation technology to predict which treatments and care management programs will work for which patients, improving individual patient outcomes and the health of populations, while reducing the total cost of care.

Headquartered in the biotechnology and health IT center of Cambridge, MA, our technology is based on its MeasureBase™ data integration architecture and patented REFS™ (Reverse Engineering and Forward Simulation) causal inference and simulation AI engine. Health plans, bio-pharmaceutical companies, healthcare providers, foundations, academic medical centers, and self-insured employers use GNS’ cloud-based solutions to solve pressing and costly problems including those surrounding metabolic syndrome, medication adherence, end-of-life care, preterm birth, personalized care pathways in oncology, auto-immune diseases, and diabetes, new drug target discovery, patient stratification in clinical trials, and more. GNS solutions focus on reducing adverse events, slowing disease progression, and improving therapeutic effectiveness through precision matching that maximizes impact on individual patient health outcomes while reducing wasteful spending and downstream medical costs.

Position Summary

In this role, you will be working with a team of physicists, data scientists, software engineers, and clinicians to solve critical problems in the optimization of healthcare using generative models of healthcare systems using the GNS REFS platform.

The Causal Inference Lead Modeler should be an exceptional data scientist and modeler, experienced with causal inference and structure learning, and have hands-on experience with healthcare data. The person in this role will act as a bridge between the deep domain expertise of the client and the math of machine learning. Additionally, the Modeler should be passionate about applying cutting-edge methods to solve some of the biggest issues in healthcare and be up for the excitement of a continuous flow of new efforts and clients.


  • Lead model development and identify insights for leading healthcare insurance companies to uncover opportunities to improve healthcare systems and improve patient outcomes.
  • Turn terabytes of data into information, and information into insights using REFS™.
  • Drive innovation on new approaches to data transformation and modeling.
  • Navigate complex client landscapes and rapidly deploy new solutions leveraging tools from the open source machine learning community to meet evolving client needs.


  • MS or PhD in applied mathematics, physics, computer science, engineering or statistics
  • Experience in machine learning, Bayesian analysis, and causal inference methods
  • A background in machine learning on large longitudinal healthcare datasets (such as claims, EMRs, or disease registries)
  • Excellent communication skills and the ability to communicate technical material to non-technical audiences, simply and clearly
  • Passion for applying cutting-edge methods to solve some of the biggest issues in healthcare
  • Willing to try new things for the sake of learning and fun
  • Ability to work with multiple inputs from a variety of sources (scientific direction, technical direction, production expediency, client feedback)
  • Friendly and courteous, and good at finding ways to have fun under the pressure of deadlines

Company Culture

Our philosophy at GNS is simple:  we cannot transform healthcare with anything less than an all-star team. We are seeking smart, driven people who are experts in their field, have a track record of success and a passion for creating change. We believe that strong teams supercharge the performance of individuals, create a fun and dynamic workplace and great results for our clients and the people they serve.

We are passionate about our work and believe in the ability of our technology to change the world. Our core values of integrity, collaboration, value, diversity, and game-changing guide our behaviors with each other and our clients.

GNS offers competitive salaries, stock options, unlimited vacation, health, dental and vision insurance, life insurance, long-term disability, 401(k), and much more.

Equal Employment Opportunity

GNS Healthcare provides equal employment opportunities to all employees and applicants for employment without regard to race, color, national origin, religion, sexual orientation, gender, gender identity or expression, age, veteran status, disability, or genetics. In addition to federal law requirements, GNS Healthcare complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.

Please, no recruiters at this time.


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