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Senior Machine Learning Engineer

Barcelona💼 Full-time🗓 2026-07-05 → 2026-08-10

Core

Designing, building, and maintaining generative AI experiences (summarization, conversational AI, deep research) for news consumption.

Role type

Senior Machine Learning Engineer (Generative AI)

Builds

Production generative AI systems, LLM orchestration workflows, and data processing pipelines.

Domain

Media & News / Generative AI / NLP

Deliverable

production ML models

Required skills

Python, LLM deployment, automated evaluation pipelines, multi-agent system architecture, vector storage and indexing, cloud infrastructure (AWS/GCP), Docker, Git, LangChain ecosystem (LangGraph, LangSmith), data pipeline development.

Preferred skills

Experience with tool-calling and long-term memory in agents, deep research capabilities.

Technologies

Python, AWS, GCP, Docker, Git, LangChain, LangGraph, LangSmith

Responsibilities

Orchestrate LLMs and tools into complex AI workflows; Implement optimized vector storage and indexing systems for NLP; Develop tools and frameworks for prompt management, automated evaluations, and observability; Monitor and improve agentic systems performance; Build and maintain data processing pipelines for high volumes of structured and unstructured data; Integrate third-party AI APIs.

Seniority

Senior, hands-on IC

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