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Weekend Data Science Jobs in Philadelphia, PA (NOW HIRING)

Job Summary Are you passionate about using AI, data science and digital innovation to transform quality operations and accelerate scientific decision-making? IFF is a global leader in flavors ...

Data Scientist

Philadelphia, PA ยท On-site

$103K - $173K/yr

At Elsevier, data science is not about building models for the sake of building models. It is about advancing scientific discovery, improving healthcare outcomes, and helping researchers, clinicians ...

Data Scientist

Philadelphia, PA ยท On-site

$103K - $173K/yr

At Elsevier, data science is not about building models for the sake of building models. It is about advancing scientific discovery, improving healthcare outcomes, and helping researchers, clinicians ...

Data Scientist

Philadelphia, PA ยท On-site

$103K - $173K/yr

At Elsevier, data science is not about building models for the sake of building models. It is about advancing scientific discovery, improving healthcare outcomes, and helping researchers, clinicians ...

Data Scientist

Philadelphia, PA ยท On-site

$103K - $173K/yr

At Elsevier, data science is not about building models for the sake of building models. It is about advancing scientific discovery, improving healthcare outcomes, and helping researchers, clinicians ...

M.S. or higher in computer science, mathematics, operations research, statistics or related discipline with a focus on machine learning; or the equivalent of 6-7 years' experience in a Data Science ...

Lead Data Scientist

Philadelphia, PA ยท On-site

$150K - $175K/yr

M.S. or higher in computer science, mathematics, operations research, statistics or related discipline with a focus on machine learning; or the equivalent of 6-7 years' experience in a Data Science ...

M.S. or higher in computer science, mathematics, operations research, statistics or related discipline with a focus on machine learning; or the equivalent of 6-7 years' experience in a Data Science ...

Showing results 41-60

Weekend Data Science information

See Philadelphia, PA salary details

$37.8K

$123.9K

$198.3K

How much do weekend data science jobs pay per year?

As of Aug 6, 2026, the average yearly pay for weekend data science in Philadelphia, PA is $123,854.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,400.00 and $137,200.00 per year, depending on experience, location, and employer.

Do weekend data scientists work on weekends?

Weekend data scientists may work on weekends if their projects or deadlines require it, but many roles follow a standard weekday schedule. Flexibility depends on the employer, project needs, and whether the position involves on-call or urgent tasks. Typically, data science roles are performed during regular business hours, but some positions may require weekend work for data collection, analysis, or reporting.

What skills and qualifications are needed to thrive as a weekend data scientist?

To thrive as a Weekend Data Scientist, you need strong analytical skills, proficiency in statistics, and expertise in programming languages such as Python or R, often supported by a degree in a quantitative field. Familiarity with data analysis tools like SQL, machine learning libraries (e.g., scikit-learn, TensorFlow), and data visualization platforms (e.g., Tableau) is typically required. Excellent time management, problem-solving ability, and effective communication are crucial soft skills for delivering insights on tight weekend deadlines. These skills ensure that data-driven decisions can be made efficiently and accurately, even within limited time frames.

What is a weekend data science?

A Weekend Data Science job typically refers to a part-time or contract-based data science position where the primary work hours are on weekends. These roles are ideal for students, professionals seeking extra income, or those looking to gain experience in the data science field without committing to a full-time weekday schedule. Weekend data scientists analyze data, build models, and generate insights just like full-time data scientists but with flexible or reduced hours that fit around a weekend schedule.

What challenges do data scientists working on weekends face, and how can they be managed?

Data scientists working weekend shifts often encounter challenges such as limited access to colleagues for collaboration or support, since many team members may not be available outside standard business hours. Additionally, urgent issues or data anomalies may require quick, independent problem-solving. Proactive communication with weekday teams, thorough documentation, and setting up clear protocols for handoffs can help manage these challenges and ensure smooth workflow continuity.

What is the difference between Weekend Data Science vs Part-Time Data Analyst?

AspectWeekend Data SciencePart-Time Data Analyst
CredentialsTypically requires a degree in data science, statistics, or related fieldOften requires a degree or relevant experience in data analysis or related fields
Work EnvironmentProject-based, flexible hours, often remote or on-site during weekendsFlexible hours, may be remote or on-site, often with less technical complexity
Industry UsageUsed in tech, finance, healthcare, and startups for specialized projectsCommon in retail, marketing, and small businesses for routine data tasks

Weekend Data Science roles focus on complex data projects requiring advanced skills, often during weekends, while Part-Time Data Analysts handle routine data tasks with less technical depth, offering flexible schedules. Both roles serve different needs but share a focus on data work outside standard hours.

What are the most commonly searched types of Data Science jobs in Philadelphia, PA? The most popular types of Data Science jobs in Philadelphia, PA are:
What are popular job titles related to Weekend Data Science jobs in Philadelphia, PA? For Weekend Data Science jobs in Philadelphia, PA, the most frequently searched job titles are:
What job categories do people searching Weekend Data Science jobs in Philadelphia, PA look for? The top searched job categories for Weekend Data Science jobs in Philadelphia, PA are:
What cities near Philadelphia, PA are hiring for Weekend Data Science jobs? Cities near Philadelphia, PA with the most Weekend Data Science job openings:
Infographic showing various Weekend Data Science job openings in Philadelphia, PA as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, and 4% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $123,854 per year, or $59.5 per hour.

Principal Scientist, Data Science (Translational Knowledge Engineering)

Jj

Horsham, PA โ€ข On-site

Full-time

Retirement, PTO

Posted 21 days ago


Job description

At Johnson & Johnson,we believe health is everything. Our strength in healthcare innovation empowers us to build aworld where complex diseases are prevented, treated, and cured,where treatments are smarter and less invasive, andsolutions 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

As guided by Our Credo, Johnson & Johnson is responsible to our employees who work with us throughout the world. We provide an inclusive work environment where each person is considered as an individual. At Johnson & Johnson, we respect the diversity and dignity of our employees and recognize their merit.

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:

About Innovative Medicine
Our expertise in Innovative Medicine is informed and inspired by patients, whose insights fuel our science-based advancements. Visionaries like you work on teams that save lives by developing the medicines of tomorrow.

Join us in developing treatments, finding cures, and pioneering the path from lab to life while championing patients every step of the way.
Learn more at https://www.jnj.com/innovative-medicine

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.

Johnson & Johnson is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or other characteristics protected by federal, state or local law. We actively seek qualified candidates who are protected veterans and individuals with disabilities as defined under VEVRAA and Section 503 of the Rehabilitation Act.


Johnson & Johnson is committed to providing an interview process that is inclusive of our applicants' needs. If you are an individual with a disability and would like to request an accommodation, external applicants please contact us via https://www.jnj.com/contact-us/careers , internal employees contact AskGS to be directed to your accommodation resource.
#LI-GR1
#LI-Hybrid
#JRDDS
#JNJDataScience
#JRD

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