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Franklin Fitch

Senior Data Scientist

Hybrid

London, United kingdom

£ 80,000 /year

Senior

Full Time

28-01-2026

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Skills

Communication Python SQL Data Engineering A/B Testing Training Machine Learning Marketing Analytics GCP Data Science NLP

Job Specifications

Position: Senior Data Scientist

Salary: £70,000 - £80,000 base + 12% flexible benefits

Location: London, UK (Hybrid – 3 days in office, 2 remote)

An FTSE-listed global FinTech company is looking to hire a Senior Data Scientist in their Trading & Operations function, with deep experience leading high‑impact data science projects end‑to‑end, from problem framing and exploratory analysis through modelling, experimentation and working with MLE.

You’ll collaborate with data engineering, platforms, web, messaging, analytics, marketing, risk and product. This is a key senior hire, driven by strong and growing demand for data science across the business.

What you'll be doing:

Lead end-to-end data science projects: problem framing, EDA, modelling, experimentation, and working with MLEs to deploy into production
Apply statistics, A/B testing and causal inference to inform product, growth, commercial and risk decisions
Work with diverse structured and unstructured data across client behaviour, operations and financial domains
Build advanced models and data products, including customer and growth models, recommendation systems, gradient boosting & ensemble methods, NLP / text analytics, time-series forecasting, & generative AI use cases
Monitor model performance and design experiments tied to clear hypotheses
Translate ambiguous business questions into measurable, actionable solutions
Coach and mentor junior data scientists, raising the bar on technical quality, delivery and communication

What we’re looking for:

5+ years’ experience applying data science and ML to real-world business problems
Strong grounding in statistics, experimentation and analytical reasoning
Proven experience building predictive models and taking them to production
Ability to communicate complex analysis clearly to non-technical stakeholders
Comfortable working with imperfect, large-scale data in a fast-moving environment
Strong Python and SQL skills
Cloud experience (ideally GCP, but transferable skills welcomed)

Nice to have:

Experience in financial services (not essential — support and training provided)
Exposure to marketing analytics or MMM projects
Master’s level education in Data Science, Machine Learning or a related field

What’s in it for you:

Competitive base salary + 12% flexible benefits
Private medical cover (including family)
Life insurance
Gym contribution
25 days holiday + birthday off + 2 volunteering days (28 total)
Buy/sell holiday options
Unlimited access to an online learning platform

Don't miss out on this incredible career opportunity! Apply now to become part of a dynamic team, or send an up-to-date resume to the details below.

e.dickinson@franklinfitch.com

+1 212 970 7603

About the Company

Franklin Fitch ist ein Personaldienstleister, der seinen Kunden ein umfassendes Dienstleistungsangebot zur Personalbeschaffung bietet. Mit dem Fokus auf zwei Kerntechnologiebereiche garantiert das Spezialistenteam von Franklin Fitch professionelles Recruitment in den folgenden Märkten: - Netzwerkinfrastruktur - Server- und Cloudinfrastruktur - Informationssicherheit - Big Data und Datenbank Wir vertreten Kandidaten sowohl für Festanstellungen als auch Vertragsarbeit, von Junior- bis Seniorlevel und von der Adm... Know more