Staff Data Scientist: Lead AI & Production ML

Travelex; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading financial technology firm in Greater London is seeking a Staff Data Scientist to deliver impactful AI and decision-making solutions. In this role, you'll lead complex data initiatives, apply best practices for machine learning, and mentor other data scientists. The ideal candidate has a strong background in Python, SQL, and statistical methods, with exceptional communication skills. This role offers a dynamic environment where you can make a significant difference to millions of customers.

Qualifications

• Experience designing trustworthy A/B tests and measurement frameworks.
• Ability to lead cross-functional technical work and influence stakeholders.

Responsibilities

• Lead mission-critical data initiatives from discovery to deployment.
• Apply and contribute to best practices for experimentation, modelling, and measurement.
• Act as a technical coach and mentor across squads.
• Foster a culture of learning and transparency.

Skills

Proven experience delivering high-impact ML/AI solutions

Advanced hands-on proficiency in Python

Strong SQL skills

Understanding of experimentation and statistical inference

Excellent communication and storytelling skills

Education

Background in a quantitative field (statistics, computer science, mathematics, engineering)

Tools

Core DS/ML libraries

Distributed data tooling

Job description

A leading financial technology firm in Greater London is seeking a Staff Data Scientist to deliver impactful AI and decision-making solutions. In this role, you'll lead complex data initiatives, apply best practices for machine learning, and mentor other data scientists. The ideal candidate has a strong background in Python, SQL, and statistical methods, with exceptional communication skills. This role offers a dynamic environment where you can make a significant difference to millions of customers.