Senior Data Scientist (Machine Learning & Generative AI)
Rahway, NJ - USA
Job Summary
Job Description
Job Summary:
As a Senior Data Scientist you will leverage your expertise in machine learning model development generative AI and software engineering to rapidly prototype and deploy advanced analytics products for our manufacturing division. You will collaborate with cross-functional teams including IT engineering and operations to design and implement robust advanced analytics solutions at scale within production systems. You will also engage in ad-hoc consulting roles to support various projects across the organization. Our data science team contributes to different project phases from ideation and business case development through data discovery and preparation to model development prototyping and facilitating adoption.
Primary Job Responsibilities:
Independently design and develop innovative quantitative methodologies leveraging different methods and approaches in machine learning deep learning and generative AI to drive data-driven decision-making and influence key initiatives within the company.
Apply data science machine learning and deep learning techniques to create tools for process monitoring process optimization and predictive analytics.
Develop end-to-end digital solutions including automation of data workflows and integration into existing systems.
Engage with customers and stakeholders to understand their needs requirements expectations and potential opportunities ensuring alignment with business objectives.
Build and disseminate in-depth domain knowledge of emerging trends in one or more sub-specialty areas of data analytics fostering collaboration with cross-functional stakeholders.
Design lead and document the development of analytics applications platforms and processes to unlock value through scientific insights.
Stay updated on current best practices methodologies and technologies in AI machine learning and data science landscape including compliance and ethical considerations.
Required Skills:
Extensive knowledge of both traditional supervised and unsupervised machine learning algorithms as well as familiarity with advanced deep learning architectures.
Proven hands-on experience with Python including practical skills with libraries such as scikit-learn Keras TensorFlow or PyTorch.
Familiarity with feature engineering and exploratory data analysis for both structured and unstructured data sets.
Knowledge of experiment tracking methodologies and tools to monitor model performance and maintain reproducibility.
Exceptional communication skills to effectively convey complex information to both technical and non-technical stakeholders.
A strong software engineering mindset emphasizing the importance of producing high-quality code documentation and pipelines.
A data-centric mindset focusing on how data can be leveraged to create actionable insights and drive business value.
Experience working within Agile frameworks and methodologies.
Preferred Qualifications:
Understanding of generative AI including large language models and vision language models RAG pre-training and/or fine-tuning for specific applications.
Experience with agents agentic AI platforms (CrewAI LangGraph LangChain AutoGen Semantic Kernel Bedrock Strands etc) agent tooling and protocols (MCP A2A) and/or AI coding tools (Claude Code Cursor Codex Open Claw)
Familiarity with graph networks semantic layers and causal inference.
Familiarity with deep learning applications or inference computer vision autoencoders etc.
Familiarity with modern MLOps tools and best practices for lifecycle management including CI/CD pipelines containerization technologies such as Docker and deploying machine learning models in cloud environments such as AWS Databricks or similar platforms.
Education:
Bachelors degree required
Preferred Ph.D. in chemical engineering applied mathematics or other technical fields with expertise in data science and machine learning projects or masters degree in data science computer science applied statistics/mathematics chemical engineering or a related field with 2 years of relevant experience in data science and machine learning projects.
Required Skills:
Agile Methodology Agile Methodology Applied Mathematics Business Analytics Business Case Development Change Catalyst Chemical Engineering Cheminformatics Compliance Analytics Containerization Cross-Functional Collaboration Data Mining Data Science Detail-Oriented Emerging Trends Generative AI Information Architecture Design Information Systems Engineering Machine Learning (ML) Modeling Simulations Pharmacogenetics Predictive Modeling Prototyping Software Tool Development Stakeholder Engagement 2 morePreferred Skills:
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US and Puerto Rico Residents Only:
Our company is committed to inclusion ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process.
As an Equal Employment Opportunity Employer we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race color age religion sex sexual orientation gender identity national origin protected veteran status disability status or other applicable legally protected a federal contractor we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws visit:
We are proud to be a company that embraces the value of bringing together talented and committed people with diverse experiences perspectives skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas broad experiences backgrounds and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one anothers thinking and approach problems collectively.
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The salary range for this role is
$129000.00 - $203100.00This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employees position within the salary range will be based on several factors including but not limited to relevant education qualifications certifications experience skills geographic location government requirements and business or organizational needs.
The successful candidate will be eligible for annual bonus and long-term incentive if applicable.
We offer a comprehensive package of benefits. Available benefits include medical dental vision healthcare and other insurance benefits (for employee and family) retirement benefits including 401(k) paid holidays vacation and compassionate and sick days. More information about benefits is available at can apply for this role through (or via the Workday Jobs Hub if you are a current employee). The application deadline for this position is stated on this posting.
San Francisco Residents Only:We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance
Los Angeles Residents Only:We will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of applicable state and local laws including the City of Los Angeles Fair Chance Initiative for Hiring Ordinance
Search Firm Representatives Please Read Carefully
Merck & Co. Inc. Rahway NJ USA also known as Merck Sharp & Dohme LLC Rahway NJ USA does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place introductions are position specific. Please no phone calls or emails.
Employee Status:
RegularRelocation:
DomesticVISA Sponsorship:
NoTravel Requirements:
No Travel RequiredFlexible Work Arrangements:
HybridShift:
Not IndicatedValid Driving License:
NoHazardous Material(s):
N/AJob Posting End Date:
07/21/2026*A job posting is effective until 11:59:59PM on the day BEFOREthe listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.
Required Experience:
Senior IC
About Company
Merck & Co., Inc., Kenilworth, New Jersey, USA is known as “Merck” in the United States, Canada & Puerto Rico. We are known as “MSD” in Europe, Middle East, Africa, Latin America & Asia Pacific. We are a global biopharmaceutical leader with a diverse portfolio of prescription medicine ... View more