Principal Data Scientist

Principal Data Scientist

Location: Remote (UK)

Salary: £130,000 base + equity/options + comprehensive benefits

Employment: Permanent | Flexible hours (UK-based)

Tech Ninjas Consultants are partnering with a high-growth UK product company to hire a Principal Data Scientist. You’ll set cross-team data strategy, scale experimentation, and mentor a strong data community—driving measurable customer and commercial impact across multiple product areas.

What you’ll do

• Own cross-domain data strategy that simplifies complex user journeys and improves everyday decisioning.
• Design & scale experimentation frameworks (A/B, multivariate, quasi-experimental) and establish measurement standards.
• Define north-star metrics and counter-metrics, uplift analytics quality, and champion best practices and reusable tooling.
• Partner with senior leaders in product, engineering, design, and research to shape roadmaps and prioritise high-leverage bets.
• Mentor data scientists & analytics engineers, raising capability and delivery across squads.
• Deep-dive into data foundations for new features/products and challenge assumptions with evidence.

You’ll thrive here if you

• Excel in fast-moving, cross-functional environments and turn ambiguity into testable, impactful initiatives.
• Think commercially and strategically, using data to unlock value for customers and the business.
• Are hands-on with experimentation, statistics, and ML—and pragmatic about impact vs. complexity.
• Are opinionated about measurement, willing to challenge the status quo with clear reasoning.
• Care about coaching and amplifying others.

The environment

• Strong self-serve analytics culture so you can focus on the highest-impact questions.
• Modern data stack; fluency in SQL/Python and BI expected (specific tools flexible).

Hiring process (via Tech Ninjas Consultants)

1. Intro call with Tech Ninjas
2. Hiring manager conversation
3. Practical technical assessment (experimentation/analytics case)
4. Final interviews (technical, collaboration & business impact)

We move at your pace and keep the process transparent.

Benefits & ways of working

• £130,000 base + equity/options + benefits
• Remote (UK) first
• Flexible working hours
• Annual learning budget (books, courses, conferences)
• Open to part-time arrangements where feasible

Inclusion & equal opportunities

We welcome applicants from all backgrounds and are committed to an equitable, accessible hiring process. If you need adjustments, let us know via Tech Ninjas Consultants.

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