AI Product Engineer – Agent & Integrations

🕒 October 22

🇪🇸 Spain – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 15%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Ensemble IP

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11 - 50 employees

🤖 Artificial Intelligence

⚖️ Legal

Artificial Intelligence • Legal • Technology

Ensemble IP is a leading patent search and analytics service company specializing in providing comprehensive patent searches and technology studies. The company combines human expertise with advanced AI tools to deliver the most reliable results for patent attorneys, litigators, and R&D managers. Ensemble IP offers a wide range of services, including patentability/novelty searches, validity/invalidity assessments, freedom to operate searches, and competitive benchmarking studies. With a focus on key sectors such as artificial intelligence, biotechnology, clean energy, and computer software, Ensemble IP is committed to delivering high-quality and insightful analyses to support legal and business decision-making processes.

📋 Description

• Extend Duet's agent harness by integrating new data sources • Design and implement MCP access to Duet functionality • Write thin TypeScript connectors and wire them into the agent as composable tools • Understand new data sources and determine efficient integration approaches • Author and iterate on system prompts, tool designs, and skill definitions • Develop the architecture linking prompts, tools, and skills • Extend and improve the production agent loop • Work on context management, streaming, Redis locks, billing, and user presentation • Translate user needs into staged delivery plans that provide value in each sprint • Collaborate with patent analysts and the development team to build customer-focused solutions

🎯 Requirements

• Fluency in written and verbal English • 3+ years professional software engineering experience • Strong TypeScript/Node backend skills • 12+ months building LLM agents, with an emphasis on integrating and orchestrating complex tools and data sources • Track record of delivering outcomes efficiently • Incremental delivery discipline: decompose work so each PR adds user value or represents a deliberate milestone • Demonstrated prompt engineering as product work, including structured prompts, iteration from failure modes, and version control • Experience integrating third-party APIs into an agent framework • Excellent written and verbal communication with a focus on teamwork and collaboration

🏖️ Benefits

• Remote and co-working options • Co-work location in Gracia, Barcelona

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