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Wix

Applied Data Scientist (LLM & Agentic Systems)

Wix Kyiv, Ukraine

Software Development · 1,001-5,000 employees

11 h ago
data-scientist Mid (2-5 yrs) Full-time Ukraine
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About the role

You will lead the end-to-end development of AI-powered customer care features, from problem definition and research to deployment and iteration. This involves designing and integrating LLM-based capabilities while ensuring they deliver measurable value through production-quality code.

What they look for

Python SQL Machine Learning Generative AI LLMs NLP Retrieval Agentic Systems Data Science Statistics Software Engineering Model Evaluation Production Monitoring Context Engineering Fine-tuning

Requirements

The role requires hands-on experience in applying machine learning to real-world problems and strong proficiency in Python and SQL. Candidates must possess a solid understanding of AI fundamentals, software engineering principles, and experience with Generative AI or agentic systems.

Full description

Job Description

Join our Chatbot team and help shape the future of AI-powered customer care at Wix. As an Applied Data Scientist, you’ll lead features end to end—from framing the customer problem and researching potential solutions to designing, building, deploying, and iterating on production systems. You’ll work at the intersection of data science, AI research, and software engineering to deliver reliable capabilities that create measurable value for users and the business.

 

You will:

  • Define customer-care problems, success metrics, and evaluation strategies using data and user insights
  • Design, develop, and integrate AI capabilities using LLMs, NLP, retrieval, agents, and related technologies
  • Conduct research and experiments to identify effective approaches to real customer-care challenges
  • Lead feature development end to end: define requirements, estimate scope, design the solution, write production-quality code, integrate with existing systems, deploy, monitor, and iterate based on real-world performance

Qualifications

  • Hands-on experience applying data science and machine learning to real-world problems, including taking solutions from experimentation into production
  • Experience with Generative AI, including context engineering, retrieval, automatic evaluation, agentic systems, or comparable applications
  • Strong Python and SQL skills, with experience writing production-quality code, working with machine learning frameworks, and building reliable data or AI systems
  • Strong understanding of statistics, machine learning, AI fundamentals, and software engineering principles, including testing, version control, code review, maintainability, and observability
  • Ability to work independently on ambiguous problems, communicate clearly, and collaborate effectively with product and engineering teams
  • Experience with open-source LLM fine-tuning, model evaluation, or production monitoring is an advantage

Additional Information

Our mission on the Chatbot team is to make the Customer Care Chatbot a trusted, actionable assistant throughout every user’s Wix journey. By understanding context and leveraging Wix’s knowledge base, the chatbot helps users navigate Wix, resolve issues, and take the right next steps – turning conversations into meaningful action.

  • City: Kyiv
  • Department/Company: Data Science

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