Staff AI Engineer — Platform, Guidance & Scale

Plum Fintech; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Benefits offered by this job

Stock options

Private health insurance

Annual training budget

Remote-friendly with 2 days in office

25 days holiday

Job summary

Plum is hiring a Staff AI Engineer to shape the AI Platform and Wealth Advisor teams, building scalable, safe AI-powered financial guidance for millions. You’ll own core components from orchestration to guardrails, lead end-to-end LLM-powered experiences, and mentor engineers across squads in a fast-moving fintech environment.

Join a team that values ownership, collaboration, and impact as Plum expands across European markets and grows a proactive AI platform for responsible, high-volume usage.

Qualifications

• Proven track record of technical leadership in AI at scale.
• Hands-on experience with Python and cloud infrastructure.
• Experience building LLM-powered systems, RAG and retrieval.
• Strong knowledge of evaluation, safety, and governance for AI in finance.

Responsibilities

• Architect core components of our AI platform from orchestration to guardrails.
• Lead end-to-end development of LLM-powered customer experiences for Wealth Advisor.
• Build evaluation systems and ensure rapid, safe AI improvements.
• Provide guidance and mentorship to Senior Engineers.

Skills

Technical leadership

LLM systems

Python

Distributed systems

Cloud infrastructure

RAG pipelines

Prompt engineering

Job description

Plum is hiring a Staff AI Engineer to shape the AI Platform and Wealth Advisor teams, building scalable, safe AI-powered financial guidance for millions. You’ll own core components from orchestration to guardrails, lead end-to-end LLM-powered experiences, and mentor engineers across squads in a fast-moving fintech environment.

Join a team that values ownership, collaboration, and impact as Plum expands across European markets and grows a proactive AI platform for responsible, high-volume usage.