Senior Data Scientist - International BAU & Operations
London Hybrid Working Model
6 Months Contract + Extension
£400 to £450 Inside IR35
A fast-growing, high-impact international organisation is seeking a hands-on Senior Data Scientist to take ownership of the day-to-day analytics engine and machine learning models for an established international platform across the UK and Canadian markets.
Key Responsibilities - Maintain, retrain, and troubleshoot existing live ML models (credit, recommendation, and ranking logic). Monitor model health and drift, ensuring operational stability without needing to rebuild underlying architectures.
- Monitor the UK/CA revenue baseline, investigate sudden anomalies, and triage operational gaps across partner feeds, email campaigns, and retargeting systems.
- Oversee live tests, analyze performance reads, and make confident promotion and rollout decisions for marketing and product initiatives.
- Rapidly triage pipeline breaks, tracking gaps, and partner feed issues to maintain data integrity across the International ecosystem.
- Handle time-sensitive data extraction requests-including FCA regulatory returns, DSARs (Data Subject Access Requests), Right to Be Forgotten (RTBF) pulls, and complaint data-frequently under same-day or next-morning deadlines.
- Serve as the central data owner partnering directly with Product, Marketing, Engineering, Business Development, Compliance, and Member Support teams.
Essential Requirements - 5+ Years Experience: Hands-on Data Science & Analytics within B2C, FinTech, Consumer Tech, or E-Commerce.
- Core Stack: Advanced SQL & Python (or R) to maintain existing codebases and pipelines.
- Production ML: Proven expertise in retraining, monitoring, and debugging live ML models.
- BAU Operator: High autonomy to own daily operations and deliver under tight deadlines.
- Cloud & BI Stack: Practical exposure to GCP (BigQuery), Airflow, or Looker.
- AI Tooling: Familiarity with Claude Code, OpenAI, Cursor, or agentic workflows to accelerate delivery.
- Compliance & Domain: Prior experience with FCA reporting, DSARs, or time-sensitive regulatory data pulls.
London Hybrid Working Model | 6 Months Contract + Extension
£400 to £450 Inside IR35
If you are an experienced Data Science operator ready to take ownership of a mission-critical International BAU setup, please apply directly to this advert or submit your CV to .
Randstad Technologies is acting as an Employment Business in relation to this vacancy.