Data Scientist - Investment/PE

CompanyHarnham

LocationLondon Area, United Kingdom

Posted At1/28/2026

UK Visa Sponsorship Analytics

Occupation Type

Actuaries, economists and statisticians

Occupation Code Skill LevelHigher Skilled

Sponsorship Salary Threshold

£55,100 (£28.26 per hour)

Occupation rate applies

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Description

Data Scientist

Working Pattern: 4 days per week in the London office (Mon–Thurs)

Salary: £65,000–£70,000 base + bonus

Sponsorship: Not available

The Opportunity

We’re partnering with a high-performing international investment firm that uses advanced data science and AI to support investment decisions, due diligence, and portfolio value creation. The business works closely with founders and leadership teams of fast-growing, tech-enabled companies and operates at the intersection of data, product, and commercial decision-making.

You’ll join a small, highly technical data team with strong visibility across the business, working on a mix of research, production ML, and short-cycle analytical projects.

This role would suit someone early in their career who has excellent academic foundations and has already worked hands-on with LLMs, NLP, or RAG-style systems in a lean team environment.

What You’ll Be Doing

Building and experimenting with LLM-based and NLP solutions

for real-world commercial use cases

Taking projects end-to-end: research → prototyping → production deployment

Writing clean, production-ready Python

Working across multiple projects simultaneously (research, production models, short analytical sprints)

Collaborating closely with data scientists, engineers, and non-technical stakeholders

What We’re Looking For

Experience

1–3 years’ experience in data science, ML, or applied AI
Hands-on exposure to LLMs, NLP, or language analysis (commercial or project-based)
Experience working in small teams with real ownership

Technical Skills (Must-Have)

Strong Python
Solid grounding in classical data science & ML fundamentals
End-to-end project delivery experience
Familiarity with LLMs (RAG, agents, or applied use cases)
Cloud experience (GCP preferred, AWS/Azure also fine)

Nice to Have

Transformers / Hugging Face
Agentic or orchestration frameworks
BigQuery, Snowflake, or data lake environments
Full-stack capability (very attractive but not required)

Background

STEM degree (BSc or MSc strongly preferred)
Strong academics valued alongside hands-on experience
No specific industry background required (product, tech, or FS all welcome)

What’s On Offer

Competitive base salary + bonus
Strong benefits package (pension, private healthcare, holiday)
High autonomy and technical ownership
Exposure to genuinely interesting, non-cookie-cutter AI problems
Small, high-calibre team with excellent learning opportunities

Apply below!