Sr AI Engineer (Fullstack - TS / Vue / NodeJS)

n8n; España; A distancia; EUR 70.000 - 90.000; Jornada completa

Descripción de la vacante

A workflow automation platform is seeking a Senior AI Engineer to drive intelligent features and build AI capabilities. You will collaborate with teams to enhance user experience through generative AI and LLM solutions. Candidates should have over 5 years of experience, strong fullstack development skills, and hands-on experience with LLM APIs. This role includes competitive compensation and a remote-first culture with flexible working options.

Servicios

Competitive compensation and equity

Generous vacation and time-off policies

Health & wellness benefits

Remote-first culture

Career growth opportunities

Formación

• 5+ years of experience building web-based products, ideally in B2B SaaS startups.
• Proven track record shipping AI-powered features in production with LLM APIs.
• Hands-on experience with prompt engineering and embedding models.

Responsabilidades

• Architect and implement AI-powered capabilities like code generation and workflow optimization.
• Integrate LLM APIs for natural language code suggestions.
• Collaborate closely with other engineers to ensure AI features are reliable and scalable.

Conocimientos

Fullstack development skills with TypeScript

API design

Experience with LLM APIs

Prompt engineering

User-focused mindset

Descripción del empleo

Overview

Sr AI Engineer (Fullstack - TS / Vue / NodeJS) at n8n. n8n is a workflow automation platform that combines AI capabilities with business process automation, offering code flexibility with the speed of no-code and a community of builders. We have 500+ integrations and follow fair-code principles.

As a Senior AI Engineer, you’ll drive intelligent features that redefine how users build automations. You’ll build AI-powered capabilities, from natural language input to smart suggestions, to make creating workflows faster and more intuitive. You’ll collaborate across engineering, product, and design to bring generative AI and LLM-based enhancements into the core user experience.

Responsibilities

• Architect and implement AI-powered capabilities: code generation, intelligent node creation, and workflow optimization
• Integrate LLM APIs and embedding models for text-to-workflow and natural language code suggestions
• Design and iterate on prompts to improve model output and user experience
• Build internal tooling, evaluation benchmarks, and automated testing for AI components
• Collaborate closely with other engineers to ensure AI features are reliable, performant, and scalable
• Balance experimentation with impact: ship quickly while focusing on user value
• Stay current with advances in LLMs, prompt frameworks, and developer tools, and bring those insights into our roadmap

Requirements

• 5+ years of experience building web-based products, ideally in B2B SaaS startups
• Strong fullstack development skills with TypeScript, Node.js, and API design
• Proven track record shipping AI-powered features in production with LLM APIs (OpenAI, Anthropic, etc.) and understanding of end-to-end systems
• Deep understanding of AI fundamentals: agent architectures, chat completion roles, embedding vectors, vector databases, and chunking strategies
• Hands-on experience with prompt engineering, embedding models, and vector stores
• A user-focused mindset: delivering features that solve real problems
• A bias for shipping and learning—fast iteration is second nature

Bonus Points For

• Experience fine-tuning LLMs or working with retrieval-augmented generation (RAG) systems
• Frontend experience using Vue or React
• Technical writing or documentation contributions, especially around developer tools or AI
• Experience with agent orchestration patterns and state management in multi-step AI systems
• Knowledge of code quality evaluation metrics and context optimization techniques

Benefits

• Competitive compensation and equity
• Work / life balance with generous vacation and time-off policies that vary by region
• Health & wellness benefits tailored to local norms
• Future planning including pension contributions and retirement plans
• Financial security including disability, life, and hospital coverage where applicable
• Career growth opportunities and regular hackathons
• Remote-first culture with team bonding off-sites; some roles may be hybrid
• Open source contribution support
• Transparency about company direction and an ambitious, kind culture
• Country-specific details provided in the contract

n8n is an equal opportunity employer and does not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, gender identity, age, marital status, veteran status, or disability status. We can sponsor visas to Germany; for other countries, you need to have an existing right to work. Our company language is English.