Senior Data Scientist III

Posted:
3/31/2026, 5:46:48 PM

Location(s):
Shanghai, China

Experience Level(s):
Senior

Field(s):
AI & Machine Learning ⋅ Data & Analytics

Key Responsibilities

Technical Leadership

  • Lead end-to-end development of advanced AI models (e.g.,LLM, NLP, classification, regression, deep learning).

  • Architect scalable model pipelines and data workflows in cloud-based environments.

  • Establish best practices in model validation, explainability, fairness, and governance.

  • Conduct rigorous experimentation, A/B testing, and performance monitoring.

  • Drive research into emerging AI techniques and evaluate applicability to LexisNexis products.

Product & Business Impact

  • Partner with Product, Engineering, and Business stakeholders to translate requirements into analytical solutions.

  • Identify opportunities to enhance risk scoring, entity resolution, legal analytics, fraud detection, compliance monitoring, or related product areas.

  • Present insights and recommendations to senior leadership and non-technical audiences.

  • Ensure models meet regulatory, compliance, and ethical AI standards.

Data & Platform Excellence

  • Work with structured and unstructured data, including legal texts, transactional data, and graph-based datasets.

  • Collaborate on data engineering strategies to ensure high-quality, scalable datasets.

  • Optimize model performance for production deployment.

  • Implement monitoring frameworks to ensure model robustness and stability.

Mentorship & Influence

  • Mentor and coach junior and mid-level data scientists.

  • Lead code reviews and promote reproducible research practices.

  • Contribute to strategic roadmap planning for data science initiatives.

  • Act as a subject matter expert in advanced analytics within the organization.

Required Qualifications

  • Master’s or PhD in Computer Science, Artificial Intelligence, Machine Learning, Natural Language Processing, or a related quantitative field.

  • 8+ years of progressive experience in data science, applied machine learning, or AI engineering roles, with demonstrated ownership of production-grade systems.

  • 3+ years of hands-on experience designing and deploying LLM-based systems or advanced NLP solutions within enterprise-scale products.

  • Strong programming proficiency in Python and deep experience with modern ML/NLP frameworks and tooling.

  • Demonstrated technical expertise in:

    • Deep understanding of LLM capabilities, limitations, and mitigation strategies across commercial (e.g., OpenAI, Anthropic) and open-source models

    • Design and implementation of Retrieval-Augmented Generation (RAG) architectures

    • Agent orchestration frameworks and multi-step tool-using agents

    • Prompt engineering, systematic prompt evaluation, and optimization methodologies

    • Embedding models, vector databases, and semantic retrieval techniques

    • Strong understanding of model evaluation methodologies

  • Proven experience deploying, monitoring, and optimizing AI systems in cloud environments (AWS, Azure, or GCP).

  • Strong written and verbal communication skills in English, with the ability to effectively collaborate across global teams.

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RELX

Website: https://www.relx.com/

Headquarter Location: London, England, United Kingdom

Employee Count: 10001+

Year Founded: 1993

IPO Status: Public

Industries: Analytics ⋅ Business Information Systems ⋅ Consulting ⋅ Information Services ⋅ Information Technology ⋅ Insurance ⋅ Risk Management