Principal Data Scientist

About Session AI

At Session AI, we’re redefining how companies understand and engage with their customers. Our AI-driven platform enables businesses to deliver hyper-personalized experiences at scale, powered by advanced behavioral analytics and real-time decisioning. We thrive on data, and our team is passionate about transforming complex data into actionable insights that drive real-world impact.

The Role

We're looking for a Principal Data Scientist who is passionate about solving complex problems using AI, machine learning, statistical modeling, and experimentation. As a senior member of the data science team, you will work cross-functionally with engineering, product, and business teams to shape the next generation of Session AI’s intelligence capabilities.

Key Responsibilities

• Lead the research, advanced analytics, and feature engineering efforts across AI/ML applications.
• Design and develop experiments for machine learning models and statistical algorithms to drive product and customer insights.
• Translate complex analytics, performance metrics, observations and findings into clear, actionable insights for technical and non-technical stakeholders.
• Collaborate with leadership, product managers and engineers to explore innovative ideas and lead AI initiatives.
• Mentor junior data scientists and contribute to best practices in data science and advanced analytics.
• Stay up to date with the latest in AI/ML research.

Qualifications

• 10+ years of experience in data science, machine learning, or applied statistics.
• Strong problem-solving skills.
• String analytical skills.
• Deep knowledge of supervised and unsupervised learning, time-series forecasting, clustering, and recommendation systems.
• Strong programming skills in Python (preferred) with experience using libraries like scikit-learn, TensorFlow, PyTorch, XGBoost, etc.
• Proficiency in SQL.
• Experience troubleshooting production issues and doing root-cause analysis.
• Excellent communication skills with the ability to present technical content to diverse audiences.
• Advanced degree (MS/PhD) in Computer Science, Statistics, Mathematics, or a related quantitative field.

Bonus Points

• Experience in behavioral analytics or personalization engines.
• Background in real-time data processing or event-driven architectures.
• Prior experience in high-growth SaaS or AI/ML startups.

• A fast-paced, collaborative environment where your work directly impacts product and customer experience.
• Competitive compensation, equity, and benefits package.
• Opportunities to grow into leadership roles and shape the data science vision of Session AI.