UBS

Gen-AI Data Scientist Lead

UBS$130K — $180K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Master's or PhD in Machine Learning, Computer Science, or related field.
  • 7-10 years of experience leading analytics or AI product teams.
  • Strong knowledge of statistical tools (R, SAS), programming (Python), and data visualization.
  • Proficient in using machine learning frameworks such as PyTorch and Hugging Face.
  • Experience with LLM APIs and cloud platforms (Azure, AWS, GCP).

Responsibilities

  • Lead and mentor a team of 10-15 data scientists in AI application development.
  • Identify and prioritize AI opportunities to enhance workflow and revenue.
  • Drive end-to-end development and deployment of AI/ML models.
  • Design and maintain LLM evaluation frameworks to monitor performance.
  • Collaborate with product and tech teams to deliver AI solutions.
  • Communicate complex technical concepts to diverse stakeholders.

Benefits

  • Opportunities for professional growth and career advancement.
  • Work in a diverse, global team environment.
  • Engagement with cutting-edge AI technologies and frameworks.
Full Job Description
Your role

Are you an analytical thinker who enjoys leveraging data and advanced analytics to generate actionable insights that enhance client experience and drive business growth?

We're looking for a data scientist to:
• lead and mentor a team of 10-15 highly capable data scientists focused on building impactful AI applications
• identify and prioritize opportunities to apply AI for workflow optimization and revenue generation through strong stakeholder engagement
• drive end-to-end development and deployment of AI/ML models, applying best practices in software engineering and reproducible research
• design, build, and maintain LLM evaluation frameworks to monitor model performance, reliability, and consistency throughout the development lifecycle
• partner closely with product, business, and technology teams to deliver robust, production-grade AI solutions
• communicate complex technical concepts clearly and effectively to both technical and non-technical stakeholders

Your team

You will be part of Data Analytics & Foundational Platforms (DAFP) within Wealth Management Americas (WMA), focusing on developing statistical and machine learning models that enable better decision-making across the business.

Our global Data Science team operates across the US, Poland, and China, and plays a central role in supporting data science initiatives across multiple business areas.

Your expertise
• master's or PhD in Machine Learning, Computer Science, Computational Linguistics, or a related technical field
• ideally 7-10 years of experience leading teams and delivering advanced analytics or AI-driven products
• strong knowledge of statistical tools (e.g., R, SAS), programming languages (Python), data visualization tools, and advanced analytical methods including machine learning and AI
• excellent active listening and communication skills, with the ability to build partnerships across all levels of the organization
• proven leadership experience in building, mentoring, and scaling high-performing data science teams
• strong problem-solving mindset with the ability to translate business challenges into scalable analytical solutions
• ability to operate effectively in a fast-paced, cross-functional environment
• proficiency in Python and key frameworks/libraries such as PyTorch, transformers, LangChain, OpenAI, and spaCy
• experience working with LLM APIs (e.g., Azure OpenAI, Anthropic)
• strong understanding of version control and software engineering best practices
• familiarity with cloud platforms (Azure, AWS, GCP, Databricks)
• experience working with SQL databases
• excellent written and verbal communication skills
• experience building scalable information retrieval and enterprise search solutions using both classical (keyword-based) and modern (semantic / embedding-based) techniques; exposure to RAG and agent-based systems is highly desirable
• experience designing automated evaluation frameworks for LLM applications
• strong familiarity with the Hugging Face ecosystem (transformers, datasets, PEFT, accelerate, tokenizers, evaluate)
• hands-on experience with LLM training and fine-tuning techniques such as PEFT, LoRA, quantization, RLHF, and DPO
• experience optimizing workflows that rely on rate-limited APIs
• nice to have: Publications in NLP or related fields
• nice to have: Experience in the financial services industry
• nice to have: Contributions to open-source projects (e.g., GitHub)

About UBS

UBS Group AG is a Swiss multinational investment bank and financial services company founded in 1862 and headquartered in Zurich, Switzerland. UBS is one of the largest and most respected financial institutions in the world, with a presence in over 50 countries. The company offers a wide range of financial services to its clients, including wealth management, investment banking, asset management, and retail banking. UBS is committed to providing its clients with innovative and effective financial solutions that meet their unique needs and goals.
Learn more about UBS
Size
71,697 employees
Market Cap
$64.8 billion
Industry
Founded
1854
5 Year Trend
-6.5%
NASDAQ

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