Johnson & Johnson

Principal Scientist, Data Science (Translational Knowledge Engineering)

Johnson & Johnson$117K — $201K *
Pharmaceuticals & Biotech
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • PhD or Master's in Biomedical Informatics or related field.
  • 5+ years' experience in biomedical informatics or knowledge engineering.
  • Proven ability in designing ontology-driven knowledge systems.
  • Familiarity with drug development phases and standards.
  • Deep understanding of RDF, OWL, and semantic web technologies.

Responsibilities

  • Design and manage enterprise knowledge models for R&D.
  • Develop semantic frameworks for translational reasoning.
  • Lead ontology development and governance processes.
  • Create RDF-based knowledge graph architectures.
  • Collaborate with cross-functional teams on data and AI initiatives.

Benefits

  • 401(k) and pension plans.
  • 120 hours of vacation per year.
  • Up to 40 hours of personal and family time.
  • 480 hours of parental leave within one year of a child's birth.
  • 32 hours of volunteer leave per year.
Full Job Description
Job Function:
Data Analytics & Computational Sciences

Job Sub Function:
Data Science

Job Category:
Scientific/Technology

All Job Posting Locations:
Cambridge, Massachusetts, United States of America, Horsham, Pennsylvania, United States of America, Raritan, New Jersey, United States of America, Spring House, Pennsylvania, United States of America, Titusville, New Jersey, United States of America

Job Description:

Position Summary

The Principal Translational Knowledge Architect & Graph Lead will be responsible for designing and implementing the semantic and knowledge architecture that enables AI-driven reasoning across the drug discovery and development lifecycle.

This role will serve as the scientific and technical lead for ontology development, knowledge graph design, semantic interoperability, and AI-ready knowledge representation. Working at the intersection of translational science, patient safety, biomedical informatics, and artificial intelligence, this individual will help establish the semantic foundation required to connect discovery biology, preclinical safety, clinical development, real-world evidence, and post-marketing safety into a unified reasoning framework.

The successful candidate will partner closely with scientists, safety experts, data scientists, AI engineers, and platform teams to create knowledge assets that support GraphRAG, agentic AI, scientific reasoning, and next-generation translational intelligence capabilities.

Mission

Build the semantic foundation that enables AI systems to reason across discovery, preclinical, clinical, and post-marketing domains while preserving scientific meaning, provenance, and translational fidelity.

Key Responsibilities

Semantic Architecture & Knowledge Modeling
  • Design and maintain enterprise knowledge models spanning:
    • Discovery biology
    • Toxicology
    • Safety pharmacology
    • Pathology
    • Clinical development
    • Pharmacovigilance
    • Real-world evidence
  • Develop semantic frameworks that support translational reasoning across the R&D lifecycle.
  • Create conceptual, logical, and physical knowledge models supporting AI-enabled scientific discovery.


Ontology Engineering & Governance
  • Lead ontology strategy, development, governance, and lifecycle management.
  • Curate and extend biomedical ontologies supporting translational safety and efficacy use cases.
  • Establish ontology governance processes, quality standards, and semantic review procedures.
  • Ensure semantic consistency, provenance, traceability, and FAIR data principles.


Knowledge Graph & Reasoning Infrastructure
  • Design RDF-based knowledge graph architectures and related semantic technologies.
  • Develop semantic mappings, inference rules, and reasoning frameworks supporting scientific decision-making.
  • Define knowledge representations enabling GraphRAG, semantic retrieval, AI agents, and reasoning systems.
  • Establish semantic interoperability across heterogeneous data sources and standards.


Translational Data Harmonization
  • Develop semantic bridges across major industry standards and ontologies, including:
    • SEND
    • SDTM
    • ADaM
    • MedDRA
    • HPO
    • MONDO
    • SNOMED CT
    • FHIR
    • OMOP
    • Cell Ontology
    • Protein Ontology
  • Enable AI systems to traverse translational boundaries while preserving biological and clinical context.


Scientific & Cross-Functional Leadership
  • Partner with stakeholders across Discovery, Preclinical Safety, Clinical Development, Pharmacovigilance, Data Science, and Digital Health.
  • Collaborate with engineering teams responsible for data products, pipelines, and AI platforms.
  • Influence enterprise semantic strategy and represent the organization in external standards and ontology communities when appropriate.


Required Qualifications

Education
  • PhD or Master's degree in:
    • Biomedical Informatics
    • Bioinformatics
    • Computational Biology
    • Computer Science
    • Information Science
    • Knowledge Engineering
    • Related scientific discipline


Experience
  • 5+ years of experience in biomedical informatics, semantic technologies, knowledge engineering, or scientific data architecture.
  • Demonstrated experience designing ontology-driven knowledge systems in life sciences, healthcare, or pharmaceutical R&D environments.
  • Experience working across multiple phases of drug discovery and development.


Technical Expertise

Deep expertise in:
  • Ontology development and governance
  • Knowledge representation
  • RDF
  • OWL
  • SHACL
  • SPARQL
  • Semantic Web technologies


Strong experience with:
  • Enterprise ontology management platforms
  • RDF graph architectures
  • Semantic APIs
  • FAIR data principles


Domain Knowledge

Strong familiarity with one or more of:
  • Translational science
  • Toxicology
  • Safety pharmacology
  • Clinical development
  • Pharmacovigilance
  • Regulatory data standards


Experience working with:
  • SEND
  • SDTM
  • ADaM
  • MedDRA
  • HPO
  • MONDO
  • FHIR
  • OMOP


Preferred Qualifications
  • Experience building semantic foundations for AI, GraphRAG, agentic AI, or scientific reasoning systems.
  • Familiarity with LLM-based retrieval and reasoning architectures.
  • Experience supporting translational safety, efficacy, biomarker, or mechanistic reasoning use cases.
  • Contributions to ontology standards, open-source biomedical ontologies, or scientific knowledge graph initiatives.


Leadership Competencies
  • Strategic thinker capable of translating scientific challenges into scalable knowledge architectures.
  • Strong communicator who can engage effectively with scientists, clinicians, data scientists, engineers, and senior leadership.
  • Ability to operate in ambiguous, highly cross-functional environments.
  • Passion for advancing AI-enabled drug discovery and development through semantic and knowledge-driven approaches.


Required Skills:

Preferred Skills:
Advanced Analytics, Coaching, Critical Thinking, Data Analysis, Data Privacy Standards, Data Quality, Data Reporting, Data Savvy, Data Science, Data Visualization, Digital Fluency, Econometric Models, Organizing, Process Improvements, Strategic Thinking, Technical Credibility, Workflow Analysis

The anticipated base pay range for this position is :
$117,000.00 - $201,250.00

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

For additional general information on Company benefits, please go to: - https://www.careers.jnj.com/employee-benefits

About Johnson & Johnson

Scio Diamond creates single-crystal Type IIa diamonds for the jewelry market and for industrial applications. It employs a patent-protected chemical vapor deposition (CVD) process in a precisely controlled laboratory setting to produce diamonds. It was founded in 2009 and is headquartered in Greenville, South Carolina.

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Learn more about Johnson & Johnson
Size
141,700 employees
Market Cap
$462.7 billion
Industry
Net Income
$14.7 billion
Founded
1886
5 Year Trend
+5.5%
Revenue
$82.5 billion
NASDAQ

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