Merck KGaA Darmstadt Germany logo

Staff Engineer

Merck KGaA Darmstadt Germany

Saint Louis, MO
Full Time
Senior
7 days ago

Job Description

About the Role

Work Your Magic with us! Start your next chapter and join MilliporeSigma. Our colleagues across the globe love innovating with science and technology to enrich people's lives with our solutions in Healthcare, Life Science, and Electronics. We are passionate about caring for our diverse community of people, customers, patients, and the planet. This role does not offer sponsorship for work authorization. External applicants must be eligible to work in the US. Our Digital and eCommerce division is transforming the technology engine for MilliporeSigma, focusing on delivering high-performing, intelligent search experiences for our global eCommerce platforms and building new features in our evolving platform using modern principles like microservices and event-driven architectures.

Key Responsibilities

  • Analyze and enhance search relevance algorithms to ensure accurate and relevant search results for users.
  • Implement and manage search query optimization strategies to improve search results based on user behavior and business objectives.
  • Oversee the configuration and performance of search engines, ensuring they meet the evolving needs of the eCommerce platform.
  • Leverage AI and machine learning technologies to develop and implement advanced search functionalities, including personalized and predictive search capabilities.
  • Work closely with product owners, data scientists, and software engineers to define and implement search-related features and improvements.
  • Monitor search performance metrics and user feedback to identify areas for enhancement and implement data-driven solutions.
  • Maintain clear documentation of search algorithms, tuning strategies, and system configurations for internal teams.

Requirements

  • Bachelor's degree in Computer Science, Engineering, Data Science, or a related quantitative field.
  • At least 8 years of hands-on experience in search relevance, Search Query Optimization, and software engineering for eCommerce websites.
  • Proven experience with at least one major search engine, preferably Elasticsearch or other Lucene-based search engines such as Solr or OpenSearch.
  • Experience in lexical search using algorithms like BM25 and Semantic Search.
  • Excellent analytical and problem-solving skills, with the ability to think critically and creatively.
  • Strong verbal and written communication skills, with the ability to articulate complex technical concepts to non-technical stakeholders.

Nice to Have

  • Deep understanding of search relevance tuning, search query optimization, ranking, tokenization, stemming, and query parsing.
  • Experience building or integrating RAG-based architectures for LLM-assisted search use cases.
  • Experience with MLOps practices and tools.
  • Proven experience in Python and ML frameworks like TensorFlow, PyTorch, or Scikit-learn.
  • Recent experience in Java, Kotlin, Spring, Spring Boot.
  • Experience with Microservices, CI/CD, Event Oriented Architectures, and Distributed Systems.
  • Experience with cloud environments such as Google Cloud Platform, Azure, or AWS.
  • Familiarity with DevOps practices, Agile/Scrum methodologies, CI/CD pipelines, and the product development lifecycle.
  • Strong background in SQL and NoSQL databases.
  • Familiarity with modern web APIs and full stack frameworks.
  • Experience with tools like Google Analytics, BigQuery, Cassandra, Docker, Kubernetes, Kafka, in-memory caching.
  • Familiarity with data manipulation libraries such as Pandas, NumPy, Spark.

Qualifications

  • Bachelor's degree in a relevant field.
  • Minimum 8 years of relevant experience in search relevance and eCommerce software engineering.

Benefits & Perks

  • Join a diverse team that values variety, innovation, and excellence.
  • Opportunities for personal and professional growth in a culture of inclusion and belonging.
  • Work in a flexible hybrid environment supporting 2-3 days in the office.

Working at Merck KGaA Darmstadt Germany

We believe that diversity drives excellence and innovation, and we are committed to creating access and opportunities for all to develop and grow at their own pace. Our culture emphasizes inclusion, belonging, and empowering everyone to work their magic and champion human progress.

Apply Now

Job Details

Posted AtAug 21, 2025
SalaryCompetitive salary
Job TypeFull Time
Work ModeHybrid
ExperienceSenior

Job Skills

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About Merck KGaA Darmstadt Germany

Website

emdgroup.com

Location

Saint Louis, MO

Industry

Medicinal and Botanical Manufacturing

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