Senior AI Engineer - Retrieval & Agentic Systems

Kharon; City of Westminster; Hybrid; GBP 95,000 - 120,000; Full time

Benefits offered by this job

Fully-sponsored private health

Pension plan with 3% employer contrib.

Annual leave plus bank holidays

Job summary

Kharon is seeking a Senior AI Engineer, Retrieval & Agentic Systems, based in London, with hybrid work (3 days/week). The role focuses on advanced content discovery, retrieval, and narrative generation. Collaboration across Product, Data Science, and Engineering is essential.

We welcome candidates with a strong background in data science, AI/ML engineering, and building LLM-powered applications, salary in the £95k–£120k range with a discretionary bonus and monthly pay cadence.

Qualifications

• Experience in data science/AI engineering roles.
• Hands-on retrieval and ranking experience.
• Proficient in Python with production experience.
• Experience with LLM-powered apps and RAG workflows.
• Interest in global security domain.
• Ability to own projects and drive solutions.

Responsibilities

• Own and advance content discovery in Corestream and influence discovery capabilities.
• Redesign hybrid search using BM25, embeddings, and graph signals.
• Build discovery experiences including agentic search and personalized feeds.
• Develop the narrative generation pipeline from data to written intelligence.
• Own problems end to end from ideation to production.
• Collaborate with Product, Data Science, and Engineering.

Skills

Data Science

AI Engineering

ML Engineering

Information retrieval

RAG pipelines

Python

Technical ownership

Experimentation

Graph search

Tools

BM25

Vector search

Knowledge graph

Job description

Kharon is seeking a Senior AI Engineer, Retrieval & Agentic Systems, based in London, with hybrid work (3 days/week). The role focuses on advanced content discovery, retrieval, and narrative generation. Collaboration across Product, Data Science, and Engineering is essential.

We welcome candidates with a strong background in data science, AI/ML engineering, and building LLM-powered applications, salary in the £95k–£120k range with a discretionary bonus and monthly pay cadence.