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David Joseph Company
Customer Engineer, Agent BuilderDavid Joseph Company • London, United Kingdom
Customer Engineer, Agent Builder

Customer Engineer, Agent Builder

David Joseph Company • London, United Kingdom
9 days ago
Job type
  • Full-time
Job description
London, UK · On-site · Full-time Compensation: £110,000–£150,000 + competitive equity About the Company Our client is a leading conversational-AI platform that lets brands deliver concierge customer experiences — deploying AI agents across voice, chat, email, SMS, and every other channel to replace support tickets and hold music with faster resolutions. Marquee enterprises across travel, fintech, and consumer sectors run its agents. It's a later-stage, well-funded company and an in-office team built around velocity and hands-on execution. Founded 2023 · 201–500 people (Series D+) · Industry: Conversational AI The Role A post-sales, deployed-engineering seat that owns end-to-end execution of AI agent builds for strategic enterprise customers — a highly technical delivery role split roughly 50/50 (up to 60/40) between hands-on build and customer-facing engagement, depending on where each customer sits in its lifecycle. It sits inside a newly formed Agent Builder org working in tight feedback loops with agent PMs, customer success, engineering, and go-to-market. Tech stack: Python (core); LLM / AI-agent tooling (prompting, evaluation, guardrails, workflow design); enterprise integrations (CRMs, ticketing systems, data pipelines, APIs). Requirements 3–5 years of technical, customer-facing experience (post-sales) Strong Python proficiency (hard requirement) A CS or adjacent quantitative degree (preferred) LLM / AI-agent build experience (a plus) Nice to Haves A software or forward-deployed engineer pivoting intentionally into customer-facing, post-sales delivery Strong, demonstrable Python with end-to-end integration work, comfortable coding without AI assistants A track record of delivering production-grade customer solutions requiring structured execution, testing, and iteration A clear communicator who can be walked into a room with senior executives without hand-holding A CS degree from a strong program plus hands-on LLM / AI-agent experience (prompting, evaluation, guardrails, tooling) Why Join A category-leading platform with elite backing, powering agents for marquee global brands Ground-floor on a brand-new org: the Agent Builder team is only 7–8 people in seat, with real influence over how it evolves Genuine technical depth, not a slideware seat: a ~50/50 (up to 60/40) split of hands-on build and customer-facing delivery, owning enterprise agent builds end to end Details Location — London, UK Work policy — On-site, 5 days/week Compensation — £110,000–£150,000 + competitive equity Visa sponsorship — Not available Employment type — Full-time
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Customer Engineer, Agent Builder • London, United Kingdom

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