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Location
Hybrid (Prague, Czech Republic)
Seniority
Senior · 4+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 10, 2026. First seen by Alion on Nov 10, 2026. Merck & Co. scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Merck & Co. is an American pharmaceutical company founded in 1891 as the United States arm of the German firm Merck and made independent after the First World War, trading as MSD outside the United States and Canada. Its portfolio is dominated by the immuno-oncology drug Keytruda, alongside vaccines such as Gardasil and Vaxneuvance, hospital acute care products, and a large animal health business covering livestock and companion animals. The company is headquartered in Rahway, New Jersey, listed on the New York Stock Exchange, and spends a very large share of revenue on research into oncology, infectious disease and cardiometabolic therapies.

Job Description

Animal Health IT AI and Analytics team is looking for a Senior AI Engineer. Our team supports our Animal Health business areas: research and development, manufacturing, supply chain, commercial and animal monitoring through data science and AI delivery. This role allows you to work on impactful AI products and collaborate with AI engineers, data scientists, building a community that learns, challenges, and inspires each other. Our team is shaping the AH Data Science and AI strategy, serves as a DS and AI community facilitator and helps non-technical colleagues to mature their understanding of DS and AI.

Primary Responsibilities

  • Helping business stakeholders design and evaluate various AI solutions for their needs
  • Leading technical implementation of AI projects, communicating with business stakeholders, and keeping the project aligned with their needs
  • Mentor and lead junior colleagues working on same projects
  • Write efficient and maintainable code following best practices in software engineering
  • Working with DevSecOps tools for deploying and versioning code
  • Select appropriate retrieval techniques, language models, and generative AI methodologies
  • Document AI models, algorithms, and processes thoroughly
  • Prepare technical reports and presentations to communicate results and methodologies
  • Stay up to date with the latest advancements in AI and machine learning technologies
  • Participate in Agile ceremonies with the team to execute on prioritized projects and features
  • Implement automated testing and monitoring techniques to ensure the accuracy and reliability of AI systems

Requirements

  • 4+ years of experience in AI Engineering
  • Strong communication and collaboration skills
  • Strong understanding of SW and AI systems design together with programming skills in Python with a focus on backend development, backed by multiple AI SW products used by customers
  • Must be analytical, detail-oriented, and able to balance multiple projects simultaneously
  • Provable knowledge of building scalable AI Solutions (RAG, Agentic systems, etc..) within a modern technology stack including cloud services, data pipelines, databases, and other necessary tooling
  • Knowledge of prompt and context engineering techniques, such as instruction design, template-based approaches, rule-based conditioning, or fine-tuning strategies
  • Knowledge of Restful APIs for AI models
  • Knowledge of CI/CD and test-driven development
  • Familiarity with machine learning concepts (i.e. neural networks, optimization algorithms, evaluation metrics)

Preferred

  • Experience with AWS Cloud
  • Experience working in Agile Methodology
  • Experience with the following Python packages: fastapi, pydantic, langchain, langgraph, sqlalchemy, celery, and similar
  • Demonstrated experience in developing and refining prompts for generative AI models, preferably in creative or text generation domains
  • Experience with AI assisted coding
  • Experience building, deploying, and managing docker images
  • Bachelors or Masters in Artificial Intelligence, Machine Learning, or Computer Science is highly preferred, but qualifications in other quantitative disciplines are appreciated as well

Our Offer

  • Exciting work in a great team, global projects, international environment
  • Opportunity to learn and grow professionally within the company globally
  • Pension and health (Canadian Medical) contributions
  • Internal reward system plus referral program
  • 5 weeks annual leave, 5 sick days, 15 days of certified sick leave paid above statutory requirements annually, 40 paid hours annually for volunteering activities, 12 weeks of parental contribution
  • Cafeteria for tax free benefits according to your choice (meal vouchers, sport, culture, health, travel, etc.), Multisport card, Vodafone, Raiffeisen Bank and Foodora discount programs
  • Up-to-date laptop and iPhone, parking in the garage, showers, refreshments
  • Competitive salary, incentive pay, and many more

Ready to take up the challenge? Apply now!

Know anybody who might be interested? Refer this job!

Additional location(s) Compensation Information:

Required Skills:

Artificial Intelligence (AI), CI/CD, Collaboration, Communication, Detail-Oriented, Multitasking, Prioritization, Python (Programming Language), RESTful APIs, Test Driven Development (TDD)

Preferred Skills:

Agile Methodology, Amazon Web Services (AWS), Docker (Software)

Current Employees apply HERE

Current Contingent Workers apply HERE

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:

Regular

Relocation:

No relocation

VISA Sponsorship:

Yes

Travel Requirements:

10%

Flexible Work Arrangements:

Hybrid

Shift:

Not Indicated

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

11/25/2026

*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.

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