Data Scientist- Clinical Decision Support- LLMs

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at jnj.com

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Job Function:

Data Analytics & Computational Sciences

Job Sub Function:

Data Science

Job Category:

Scientific/Technology

All Job Posting Locations:

Danvers, Massachusetts, United States of America

Job Description:

J&J is currently seeking a Data Scientist, Clinical Decision Support- LLMs for their Abiomed team based in Danvers, MA.

About the Team 

The Clinical Decision Support (CDS) team at Abiomed develops advanced hemodynamic and predictive solutions for clinicians caring for critically ill patients supported by Abiomed devices. The team’s mission is to deliver reliable, actionable insights embedded directly into clinical workflows, enabling physicians to make more informed treatment decisions. 
 
Our work focuses on building Software as a Medical Device (SaMD) solutions, beginning with clinical algorithm design and validation, followed by software integration and deployment into clinician-facing platforms. 
 
We develop signal processing and machine learning–driven CDS products such as early detection models, hemodynamic monitoring tools, and decision support systems by leveraging high frequency Impella waveform data, EMRs, clinical trial registries, and advanced Generative AI / LLM techniques. 

Position Overview  

We are seeking an Experienced Data Scientist to contribute to the design, development, and validation of next-generation clinical decision support solutions for patients supported by Abiomed devices. This role spans machine learning model development using high-frequency physiologic and clinical data, LLM-driven extraction of insights from unstructured EMR sources, and deployment of AI-enabled solutions in regulated Software as a Medical Device (SaMD) environment. The ideal candidate will combine strong technical depth in AI/ML with the ability to translate complex clinical data into reliable, actionable tools that support clinician decision-making. 

 

Key Responsibilities 

• Develop advanced prompt engineering strategies and implement evaluation frameworks to optimize accuracy, reducing hallucinations and safety guardrails. 

• Support design and development of secure, scalable cloud infrastructure (IaaS/PaaS) for hosting LLMs, including Azure ML Service, Azure Kubernetes Service (AKS), and Container Apps 

• Configure and optimize data indexing for Retrieval-Augmented Generation (RAG) techniques using Azure AI Search or vector databases 

• Support and maintain documentation for AI models, ensuring validation, transparency, explainability, and traceability for regulatory submissions. 

• Develop and implement machine learning models for clinical decision support, translating time-series physiologic signals and clinical data into robust, actionable insights for patient management 

• Collaborate cross-functionally with data scientists, ML and software engineers, and quality teams to advance CDS solutions from concept through deployment. 

 

Required Qualifications 

• Master’s degree with 2+ years of experience or PhD in a relevant field. 

• Hands-on experience with LLMs/GenAI within the cloud ecosystem (Azure preferred) 

• Proficiency in Python for scripting and integrating LLM/agentic frameworks (e.g., LangChain) 

• Understanding of RAG Architecture, vector databases, embedding models, and search technologies 

• Experience with SQL databases and APIs for ETL Operations  

• Experience with machine learning model development and frameworks (PyTorch, TensorFlow, Scikit-learn) 

• Background in signal processing and biostatistics to analyze physiologic data and apply rigorous methods to model development and validation. 

• Working knowledge of bio-statistics 

Preferred Qualifications 

- Knowledge of cardiovascular physiology or critical care/ICU workflows 
- Experience with clinical datasets and medical device data 
- Understanding of Software as a Medical Device (SaMD) development lifecycle and FDA regulatory expectations 
- Experience deploying models into production systems 
- Familiarity with multi-modal datatypes like medical images, sensor-based data etc. 

What Makes This Role Unique 

• Apply cutting-edge Generative AI and LLM techniques to real-world clinical problems 

• End-to-end ownership of development, from design through deployment. Direct impact on life-saving technologies that support critical care ICU patients 
• Work with rich clinical data, high-frequency physiologic signals, and other real-world sources, to develop robust and clinically relevant solutions 

Required Skills:

 

 

Preferred Skills:

Advanced Analytics, Analytical Reasoning, Business Intelligence (BI), Business Writing, Coaching, Collaboration, Communication, Data Analysis, Data Compilation, Data Privacy Standards, Data Savvy, Data Science, Data Visualization, Econometric Models, Execution Focus, Technical Credibility, Technologically Savvy, Workflow Analysis

 

 

The anticipated base pay range for this position is :

$92,000.00 - $148,350.00

Additional Description for Pay Transparency:

Subject to the terms of their respective plans, employees are eligible to participate in the Company’s consolidated retirement plan (pension) and savings plan (401(k)).



This position is eligible to participate in the Company’s long-term incentive program.



Subject to the terms of their respective policies and date of hire, employees are eligible for the following time off benefits:

Vacation –120 hours per calendar year

Sick time - 40 hours per calendar year; for employees who reside in the State of Colorado –48 hours per calendar year; for employees who reside in the State of Washington –56 hours per calendar year

Holiday pay, including Floating Holidays –13 days per calendar year

Work, Personal and Family Time - up to 40 hours per calendar year

Parental Leave – 480 hours within one year of the birth/adoption/foster care of a child

Bereavement Leave – 240 hours for an immediate family member: 40 hours for an extended family member per calendar year

Caregiver Leave – 80 hours in a 52-week rolling period10 days

Volunteer Leave – 32 hours per calendar year

Military Spouse Time-Off – 80 hours per calendar year