Senior Data Scientist
Primary stack
Nice to have's
Job description
About the Position
We are seeking a Senior Data Scientist with expertise in Large Language Models (LLMs) and Python to develop AI-powered chatbot solutions for specialized use cases.
The ideal candidate has a strong background in Natural Language Processing (NLP) and Conversational AI, with experience in hallucination prevention, Responsible AI & compliance, and data analysis.
Responsibilities
- Partner with cross-functional teams across product, analytics, and engineering to build and enhance a shopping assistant chatbot
- Develop and refine prompt engineering strategies to elevate the quality of chatbot interactions
- Implement LLM-based agents that connect with APIs, databases, and external tools through function calling
- Safeguard chatbot reliability and prevent hallucinations by applying model evaluation techniques
- Leverage A/B testing frameworks to measure and continuously improve chatbot performance
- Apply Responsible AI and compliance principles to guarantee ethical practices and regulatory alignment
- Perform exploratory data analysis (EDA) to uncover insights and translate them into structured requirements for the data engineering team
- Guide cloud engineering teams on the infrastructure needs required for AI-powered chatbot solutions
Requirements
- At least 3 years of professional relevant experience in data science or applied AI roles
- Expertise in Large Language Models, including practical use of OpenAI APIs on Azure
- Strong Python programming skills for integrating, orchestrating, and optimizing AI workflows
- Experience developing AI agents leveraging function calling to interact with external tools and databases
- Solid knowledge of hallucination prevention techniques to maintain chatbot accuracy and reliability
- Strong understanding of Responsible AI and compliance best practices, including ethical AI guidelines
- Proven background in Natural Language Processing (NLP) and Conversational AI development
- Fluent English communication skills at a B2 level or higher, both written and verbal
Nice to Have
- Hands-on experience with A/B testing and experimentation, collaborating closely with analytics teams
- Ability to define and implement a testing strategy using key performance metrics tailored to chatbot solutions
- Proficiency in exploratory data analysis (EDA) to extract meaningful insights from large datasets
- Capability to define clear and structured data requirements for the data engineering team
- Understanding of cloud services, either through direct hands-on experience or the ability to specify infrastructure requirements for cloud engineering teams
We Offer
- Opportunity to work with cutting-edge AI technologies
- Collaborative and innovative work environment
- Professional growth and development opportunities
About the Company
EPAM Systems is a global software engineering and product development company that partners with the world’s leading brands to deliver technology solutions that drive business value.
© EPAM. This job description was sourced from the employer's public career page. TheJob is not the employer — we index the posting and route candidates to the source. All content rights and hiring decisions belong to the employer.
EPAM helps organizations innovate their business processes and rethink the way they manage their businesses so they can remain competitive in this new digital age.