Lead Data Scientist

Harnham; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

Harnham is partnering with a fast-growing EdTech company undergoing a major AI and data transformation. We are seeking a Lead Data Scientist to drive next-gen personalization models powering learning experiences at scale.

The role requires a PhD, strong ML and statistics expertise, and a track record deploying production ML. You will mentor senior data scientists and collaborate across Product, Engineering, and Data Science teams while advancing generative AI initiatives. Fully remote (USA).

Qualifications

• PhD in Statistics, Mathematics, CS, ML or related field.
• Strong expertise in statistical modelling and machine learning.
• Experience building, deploying, and monitoring production ML models.
• Proven ability to take solutions from research through to implementation.
• Strong Python and SQL skills.
• Experience working in cloud environments.
• Deep understanding of model evaluation and performance measurement.

Responsibilities

• Lead the design, development, deployment, and monitoring of statistical and machine learning models.
• Build and enhance models that power personalised learning experiences.
• Establish best practices for model governance, validation, monitoring, and lifecycle management.
• Partner with Product, Engineering, and Data Science teams to solve complex business and educational challenges.
• Mentor senior data scientists and contribute to AI and ML strategy across the organisation.
• Support future initiatives involving generative AI and LLMs.

Skills

PhD in statistics / ML / related field

ML leadership

Research to production deployment

Mentoring

Model governance

Education

PhD in Statistics / Mathematics / CS / ML

Tools

Python

SQL

Cloud platforms (AWS/GCP/Azure)

Model deployment & monitoring

Generative AI / LLMs

Job description

Harnham are partnering with a fast-growing, mission-driven EdTech company undergoing a major AI and data transformation. With millions of learners using its platform globally, the organisation is investing heavily in machine learning, personalisation, and generative AI to create more effective learning experiences at scale.

We're seeking a Lead Data Scientist to drive the next generation of AI and personalisation models.

What You'll Do

• Lead the design, development, deployment, and monitoring of statistical and machine learning models.
• Build and enhance models that power personalised learning experiences.
• Establish best practices for model governance, validation, monitoring, and lifecycle management.
• Partner with Product, Engineering, and Data Science teams to solve complex business and educational challenges.
• Mentor senior data scientists and contribute to AI and ML strategy across the organisation.
• Support future initiatives involving generative AI and LLMs.

What We're Looking For

• PhD in Statistics, Mathematics, Computer Science, Machine Learning, or a related quantitative field.
• Strong expertise in statistical modelling and machine learning.
• Experience building, deploying, and monitoring production ML models.
• Proven ability to take solutions from research through to implementation.
• Strong Python and SQL skills.
• Experience working in cloud environments.
• Deep understanding of model evaluation and performance measurement.
• 10% annual bonus
• Fully remote (USA)
• Work on products used by millions of learners
• High-impact role within a growing AI and Data Science organisation

Remote, United States

Applicants must be authorised to work in the US without sponsorship.