Contract - Principal AI Engineer

JR United Kingdom; City Of London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

Join a high-impact AI R&D team at a major financial institution as a Principal AI Engineer/Data Scientist. This role focuses on pioneering AI-driven tools for investment processes, where you'll leverage Python and AI technologies to create innovative solutions. A collaborative, fast-paced environment awaits you, with opportunities to engage closely with key stakeholders and industry leaders.

Qualifications

• Strong background in Python and commercial AI experience.
• Comfortable working collaboratively in a fast-paced environment.
• Willingness to learn and engage with stakeholders.

Responsibilities

• Experiment with Python, LangGraph, and vector databases in AI R&D.
• Prototype AI-driven tools for research automation and decision support.
• Bridge technical experimentation with real investment use cases.

Skills

Python for AI/ML

Automation

Backend Development

Working with LLMs

Prompt Engineering

Exposure to Investment Data

AWS

Job description

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Contract - Principal AI Engineer, london (city of london)

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Client:

Source Technology

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

3

Posted:

16.06.2025

Expiry Date:

31.07.2025

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Job Description:

Principal AI Engineer/ Data Scientist

Contract - inside IR35

London - hybrid

£700-£900 inside IR35 (potential flex, focus in on the right person)

Join a high-impact AI R&D team at a major financial player, where you'll be working at the cutting edge of LLMs and agentic workflows in the investment space. The team partners with front office users to prototype AI-driven tools for research automation, portfolio construction, and decision support.

This is an R&D-focused role where you’ll be experimenting with Python, LangGraph (or similar), vector databases, and prompt orchestration to prove out what's possible - then handing off validated concepts to engineering teams for scale-up.

They’re open to either data scientists or engineers with strong Python and AI experience. You’ll need to be comfortable working in a fast-paced, collaborative environment and able to bridge technical experimentation with real investment use cases. If you have finance experience, that's great, but no worries if not, as long as you're willing to learn and engage with senior stakeholders.

Key experience:

• Python for AI/ML, automation, or backend work
• Hands-on with LLMs, agent frameworks, or prompt engineering
• Exposure to investment data or a willingness to learn quickly
• AWS (or similar cloud) and rapid prototyping mindset
• Front-end exposure (e.g. React) is a nice-to-have but not required

If you're an experienced engineer or scientist with a strong background in Python and commercial AI experience get in touch.