Remote AI Product Engineer — Agent & Integrations

Ensemble Ip; Barcelona; Hybrid; EUR 65,000 - 100,000; Full time

Benefits offered by this job

Remote work option

Co-working in Gracia

Job summary

Ensemble IP LLC is seeking an AI Product Engineer in Barcelona to expand Duet's agent harness. You will design and implement MCP access, integrate new data sources, and author prompts and skills for an evolving AI platform.

The role emphasizes incremental delivery, data source integration, and collaboration with a small, driven team. You will work on context management, production agent loops, and tooling integrations, with a focus on shipping value in each sprint.

Qualifications

• 3+ years of professional software engineering experience with strong TypeScript/Node backend skills.
• 12+ months building LLM agents and integrating multiple tools and data sources.
• Demonstrated ability to decompose work into incremental, value-delivering milestones.
• Excellent written and verbal communication and collaboration in a small team.

Responsibilities

• Extend Duet's agent harness by integrating new data sources and MCP access.
• Write thin TypeScript connectors and wire data sources into the agent as tools.
• Prototype, iterate prompts and tool definitions to improve agent performance.

Skills

TypeScript/Node

LLM agents

English fluency

incremental delivery

prompt engineering

Tools

MCP

Redis

APIs integration

Git version control

Job description

Ensemble IP LLC is seeking an AI Product Engineer in Barcelona to expand Duet's agent harness. You will design and implement MCP access, integrate new data sources, and author prompts and skills for an evolving AI platform.

The role emphasizes incremental delivery, data source integration, and collaboration with a small, driven team. You will work on context management, production agent loops, and tooling integrations, with a focus on shipping value in each sprint.