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AI Software Engineer

London Office💼 Full-time🗓 2026-09-01 → 2026-09-25

Core

Build and operate production AI agents for financial services customer support and back-office operations using LLMs.

Role type

Senior IC AI Software Engineer (Applied AI/Agentic Systems)

Builds

Reliable, observable AI agents handling live customer conversations and integrating with financial APIs

Domain

Financial Services / Fintech / Generative AI

Deliverable

production ML models | product features

Required skills

Software engineering, Machine Learning, NLP, LLM application, agentic system design, tool calling, multi-step reasoning, API integration, evaluation infrastructure design, product thinking, ambiguity management, technical decision making

Preferred skills

Experience shipping products at scale, startup experience, rapid prototyping, data analysis

Technologies

LLMs, agentic frameworks, customer APIs, evaluation suites

Responsibilities

Design and implement agentic systems with tool calling and multi-step reasoning; translate ambiguous business problems into scoped agentic workflows; build robust evaluation infrastructure for accuracy, safety, and latency; develop and optimize agent skills via dataset curation and iteration; contribute to internal AI platform standards for prompting and orchestration; analyze customer data to identify automation opportunities; drive technical decisions and scope work independently

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