Senior Software Engineer - AI-Powered Content Agent

Sanity; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Health insurance

Stock options

Flexible work environment

Global, diverse team

Job summary

Sanity is hiring a Senior Engineer for Content Agent, part of the operations layer that turns content work into runnable tasks. You will build full‑stack features in TypeScript and React, work on MCP tools, agent loops, and system prompts, and improve reliability of live, production systems.

You’ll join a team shipping LLM-driven workflows with a focus on edge cases, user intent, and scalable architecture, collaborating closely with product and design.

Qualifications

• Strong TypeScript and React across the stack.
• Experience shipping LLM-based systems in production.
• Ability to design robust architectures for agent workflows.

Responsibilities

• Full-stack product work: React dashboards and APIs.
• Develop MCP tools and integrations for the agent.
• Design and refine agent orchestration and system prompts.
• Run evaluations to improve reliability in real usage.

Skills

TypeScript

React

APIs

LLMs

Systems thinking

Job description

Sanity is hiring a Senior Engineer for Content Agent, part of the operations layer that turns content work into runnable tasks. You will build full‑stack features in TypeScript and React, work on MCP tools, agent loops, and system prompts, and improve reliability of live, production systems.

You’ll join a team shipping LLM-driven workflows with a focus on edge cases, user intent, and scalable architecture, collaborating closely with product and design.