GTM Engineer: AI-Driven Customer Journey Prototyping

DEPT®; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid work policy

International travel

Health & wellness

Job summary

DEPT® is seeking a GTM Engineer for Future Customer Journey in London. You will embed with growth and strategy teams, translating FCJ methodology into working agentic components, prototypes, and internal tools.

You will integrate with infrastructure that enables rapid prototype deployment across markets. You will collaborate with product and craft teams to keep tooling compatible with the long‑term platform, while exploring AI products from technology partners and maintaining an AI‑native

Qualifications

• Experience in forward‑deployed, customer engineering or applied AI roles within agencies or AI companies.
• Ability to present working software to non‑technical stakeholders and iterate live on feedback.
• Knowledge of OpenAPI and Model Context Protocol (MCP) for connecting agents to business systems.
• Familiarity with paid media, social platforms, user behavior, or GEO concepts.
• Experience with evaluation, tracing, and observability for LLM apps.
• Demonstrated learning mindset and quick adoption of new AI products.

Responsibilities

• Collaborate with FCJ core team on global growth strategy, turning methodology into working components.
• Partner with growth and strategy teams to deliver prototype‑level solutions quickly.
• Manage partially billable global client projects while preserving FCJ strategy across markets.
• Document integration paths and ensure platform compatibility with product and craft teams.
• Evaluate and integrate new AI products with partners, maintaining an AI‑native toolchain.
• Build applications across mainstream LLM families and connect models to enterprise data.
• Develop agentic systems using LangChain, LangGraph, or equivalent frameworks.

Skills

Customer engineering

Applied AI

OpenAPI

Model Context Protocol

Paid media

Social platforms

LLM observability

Learning mindset

Tools

LangChain

LangGraph

APIs

RAG

Job description

DEPT® is seeking a GTM Engineer for Future Customer Journey in London. You will embed with growth and strategy teams, translating FCJ methodology into working agentic components, prototypes, and internal tools.

You will integrate with infrastructure that enables rapid prototype deployment across markets. You will collaborate with product and craft teams to keep tooling compatible with the long‑term platform, while exploring AI products from technology partners and maintaining an AI‑native