Senior Data Scientist

Join our fast-growing Global Product Management Data Science team and help transform Gartner's Client Experience Digital Platform-the essential destination for IT and business leaders worldwide. As a data scientist, you'll leverage advanced analytics and machine learning to create intelligent, scalable solutions that deliver real value and enhance every step of our clients' journey.

In this role, you will lead complex data science projects in partnership with cross-functional teams, driving the development of advanced AI-powered chatbot systems that deliver intelligent, personalized experiences at scale. You'll architect and implement cutting-edge conversational AI tools-including intelligent search, recommendation engines, and context-aware content systems-while ensuring seamless integration with enterprise platforms.

What you will do

• Lead data science projects in close collaboration with Data Engineering, Application development, Product owners and business leaders to deliver high-value business capabilities
• Architect and build sophisticated AI-powered chatbot systems that provide intelligent, personalized client experiences at scale
• Design and implement advanced tools that power conversational AI capabilities, including intelligent search, recommendation engines, and context-aware content retrieval systems
• Design and implement Model Context Protocol (MCP) servers to enable seamless integration between AI agents, enterprise systems, and external tools
• Build user profiling and personalization models to deliver tailored chatbot experiences
• Be accountable for high-quality data science solutions with respect to accuracy, coverage, scalability, stability, and business adoption
• Take ownership of algorithms and drive enhancements/optimizations based on business requirements with proper documentation and code-reusability
• Leverage internal and external data to understand client's company-level priorities and deliver targeted support
• Collaborate with senior leadership on long-term vision, strategy, and solution roadmaps aligned with business objectives
• Pitch ideas, present solutions, and influence senior leaders and executive stakeholders with strong business value propositions
• Stay on top of fast-moving AI/ML models and technologies, particularly in LLMs, conversational AI, and agentic systems
• Collaborate with engineering and product teams to launch MVPs and iterate quickly
• Independently plan and drive complex data science projects that deliver measurable business value
• Mentor junior data scientists on chatbot development, LLM applications, and best practices

• 6-8 years hands-on experience building conversational AI systems, chatbots, LLM applications, or other advanced machine learning/artificial intelligence solutions to drive business impact

• Master's Degree or PhD in a quantitative field (math, computer science, engineering, etc.) required

• Strong communication skills in technical and business domains with demonstrated ability to translate quantitative analysis into actionable business strategies and influence executive leadership

• Working experience in some of the following data science areas:

• Large Language Models (LLMs) and Generative AI

• Conversational AI, chatbot development, and dialogue systems

• Natural Language Processing and text mining

• Search and Recommendation systems - nice to have

• Prompt engineering, LLM fine-tuning, and model optimization

• AI agent architectures and orchestration

• Strong familiarity with Model Context Protocol (MCP) and building tools for AI agents

• Deep understanding of Lean product principles, software development lifecycle, and machine learning life cycle

• Practical, intuitive problem solver with proven ability to translate business objectives into actionable data science tasks and implement state-of-the-art ML research into production systems

• Experience and proficiency with Python, machine learning tools (e.g., scikit-learn, spacy, nltk), deep learning frameworks (e.g., pytorch, tensorflow, huggingface), LLM frameworks (e.g., LangChain, LlamaIndex), SQL/relational databases (e.g., Oracle), NoSQL databases (e.g., MongoDB, graph database), vector databases (e.g., Pinecone, Weaviate), distributed machine learning (spark), Linux and shell scripting

• Experience with cloud computing services such as AWS or Azure ML

• Strong ability to work collaboratively across product, data science and technical stakeholders with experience mentoring data scientists

• Ability to work in a culture that thrives on feedback and seeks opportunities to stretch outside comfort zone

• Bias for action and client outcome oriented, * Applications must be submitted in English.

• A valid EU visa/passport is required for this position.

Pulled from the full job description

• Retirement plan
• Dental insurance, * Competitive compensation
• 25 days annual holiday and an additional day off for your birthday.
• Private Medical and Dental Care.
• Life and Disability Insurance.
• Public Transport Subsidy.
• Ticket Restaurant Card.
• Childcare Vouchers (Ticket Guarderia).
• IncentiFit - annual reimbursement for health-and-wellness-related activities.
• Pension Scheme.
• Tuition Reimbursement.
• Employee Stock Purchase Plan.
• Employee Assistance Program.
• Gartner Gives Charity Match.
• Relocation Assistance - a specialist to help you with all the appointments and paperwork.
• Limitless growth and learning opportunities.
• A collaborative and positive culture - join a diverse team of professionals that are as smart and driven as you.
• A chance to make an impact - your work will contribute directly to our strategy.
• Hybrid Work Environment - enjoy the flexibility of working from home and the energy of collaborating with peers in our dynamic offices.
• New offices close to Glòries and the beach in the fantastic, "innovation and tech" 22@ district of sunny Barcelona.
• Fresh fruit, snacks, selection of teas, fair trade organic coffee.

And much more!

At Gartner, Inc. (NYSE:IT), we guide the leaders who shape the world. Our mission relies on expert analysis and bold ideas to deliver actionable, objective business and technology insights, helping enterprise leaders and their teams succeed with their mission-critical priorities. Since our founding in 1979, we've grown to 20,000 associates globally who support over 13,000 client enterprises in ~90 countries and territories. We do important, interesting and substantive work that matters. That's why we hire associates with the intellectual curiosity, energy and drive to want to make a difference. The bar is unapologetically high. So is the impact you can have here. What makes Gartner a great place to work? Our vast, virtually untapped market potential offers limitless opportunities - opportunities that may not even exist right now - for you to grow professionally and flourish personally. How far you go is driven by your passion and performance. We hire remarkable people who collaborate and win as a team. Together, our singular, unifying goal is to deliver results for our clients. Our teams are inclusive and composed of individuals from different geographies, cultures, religions, ethnicities, races, genders, sexual orientations, abilities and generations. We invest in great leaders who bring out the best in you and the company, enabling us to multiply our impact and results. This is why, year after year, we are recognized worldwide as a great place to work. Gartner is the world authority on AI At Gartner, you'll join a company at the very center of the AI revolution. Gartner has proactive, objective guidance throughout clients' AI journeys. We set the standard for how organizations leverage artificial intelligence to drive meaningful impact. You'll have access to unmatched resources, expertise, and technology, and play a key role in helping Gartner and our clients innovate and grow as we leverage AI to transform business and technology landscapes. It's an exciting time to be at Gartner, with limitless opportunities to make a real impact, grow your skills, and build a lasting, meaningful career in a field that's reshaping the way we operate. If you're passionate about AI and want to be part of a team that's guiding the leaders who shape the world, Gartner is the place for you. What do we offer? Gartner offers world-class benefits, highly competitive compensation and disproportionate rewards for top performers. In our hybrid work environment, we provide the flexibility and support for you to thrive - working virtually when it's productive to do so and getting together with colleagues in a vibrant community that is purposeful, engaging and inspiring. Ready to grow your career with Gartner? Join us.