Senior AI Agent Engineer: Backend & LLM Orchestration

Multiverse Computing; Barcelona; Hybrid; EUR 75,000 - 110,000; Full time

Benefits offered by this job

Indefinite contract

Signing bonus

Health insurance

Relocation package

Hybrid work opportunity

Visa sponsorship

Job summary

Multiverse Computing is seeking a Senior Software Engineer to design and implement production-grade backend systems and AI agents. You will own architecture, tool integrations, and deployment across projects, collaborating with ML, data, and product teams.

You will work in a hands-on role focused on scalable, observable systems, with opportunities to transform successful patterns into reusable components and contribute to platform capabilities.

Qualifications

• Master's degree in Computer Science or related field.
• 5+ years of professional software engineering experience with backend or AI/ML systems.
• Hands-on experience building LLM-powered applications or AI agent systems.
• Strong Python skills and modern software engineering practices.

Responsibilities

• Own the design and implementation of AI agent systems and production-grade backend services.
• Develop integrations with LLMs, databases, and external tools.
• Design workflows for tool use, memory, retrieval, and multi-step execution.
• Ensure observability, reliability, and scalable performance in production.

Skills

Spanish (fluent)

English (fluent)

Python

Software design

Education

Master's degree in Computer Science or related

Tools

FastAPI

PostgreSQL

Docker

Kubernetes

Cloud platforms (AWS/Azure/GCP)

Job description

Multiverse Computing is seeking a Senior Software Engineer to design and implement production-grade backend systems and AI agents. You will own architecture, tool integrations, and deployment across projects, collaborating with ML, data, and product teams.

You will work in a hands-on role focused on scalable, observable systems, with opportunities to transform successful patterns into reusable components and contribute to platform capabilities.