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AI Platform Engineer – DevEx & Design Systems

On-site in Barcelona·Full-time·Added yesterday (last checked 27 Oct)

Pasiona

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Our summary

Work mode: On-site, Barcelona
Contract: Permanent, full-time hours
English: Required

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Skills

Nice to have

React

This job advert was originally written in Spanish.

Requirements

What we're looking for

Solid Software Engineering Foundation: Proven experience building APIs, business logic, and maintainable software architecture.
Hands-on experience with MCP (Model Context Protocol): Real development or integration of MCP servers, tools, or clients.
Proficiency in TypeScript / JavaScript in Backend (Node.js): Ability to program AI logic and integrations in the standard language of our web ecosystem.
AI Workflows and Agents: Experience integrating LLM APIs, tool calling, context management, and structured instructions for programming assistants (Claude Code, GitHub Copilot, Cursor, etc.).
Technical Packaging Ability: Skill in converting complex solutions into internal tools that are easy for other developers to adopt.

Nice to have

Familiarity with the structure and consumption of Design Systems, UI component libraries (React, etc.), and technical documentation.
Creation of CLI tools, internal automations, or developer platforms.
Experience in automated testing and quality/accuracy evaluation for AI responses.

Languages

C1 in English

The role

We are looking for an AI Platform Engineer specializing in Artificial Intelligence tools and infrastructure development to empower and transform the use of our Design System.

In this role, you will not be responsible for UI component layout or designing graphic interfaces. Your main mission will be to design the architecture, servers, and AI workflows (using the MCP protocol) that allow our development teams to consume, understand, and integrate the Design System in a faster, smarter, and more automated way.

You will work at the intersection of backend software engineering (Node.js / TypeScript) and language model integration (LLMs, agents, and AI-assisted development).

What you'll do

AI Infrastructure and MCP: Design, build, and maintain servers and integrations under the Model Context Protocol (MCP) protocol to connect our Design System resources with code assistants and AI agents.
Developer Experience (DevEx) Tools: Package AI capabilities into modular, reusable, and well-documented tools that improve team productivity.
Agentic Workflows and Instructions: Develop structured prompts, instructions for code agents, and automated flows for common development tasks.
AI Ecosystem: Establish best practices for AI adoption, context control, governance, and security of LLM-generated code.
Documentation and Enablement: Create guides, templates, and technical examples that facilitate the adoption of these internal solutions by other engineers.

Location

Barcelona

About Pasiona

Pasiona is a technology consulting firm specializing in cybersecurity, cloud infrastructure, and digital transformation. The company operates as a strategic partner for enterprises, offering services that range from vulnerability management and penetration testing to AI-driven platform engineering and data integration. With a global footprint, Pasiona combines deep technical expertise with a strong focus on innovation, helping organizations modernize their IT environments and secure their digital assets.

In Spain, Pasiona has established a significant presence in Barcelona, where it runs its Spanish operations and serves as a hub for international talent. The company is known for its collaborative, engineering-driven culture and actively recruits international professionals, offering opportunities for growth in areas like AI, cloud security, and platform engineering. For international hires, Pasiona provides a multicultural environment and the chance to work on cutting-edge projects, making it an attractive destination for those looking to build a career in Spain's thriving tech sector.

Industry: Tech Consulting
Founded: 2010
Employees: 100–500
Headquarters: Barcelona, Spain
In Spain: Barcelona

Good to know if you are moving

Pasiona is headquartered in Barcelona, so international hires would be joining the company at its global HQ.
The company's working language is English, making it accessible for non-Spanish speakers.
Pasiona offers visa sponsorship and relocation support for international candidates.
The company has a strong focus on professional development and certifications in cybersecurity and cloud technologies.
Barcelona offers a high quality of life, with a strong tech ecosystem and international community.

All open roles at Pasiona