Artificial Intelligence Engineer

act digital; Lisboa; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

act digital is seeking an AI Agent Developer to join a technology-driven team in Lisbon, Portugal. The role focuses on designing, building, and optimizing AI agents and automation workflows powered by Generative AI and LLMs.

You will work on orchestration with n8n and related tools, integrate with enterprise systems via REST/GraphQL, and ensure secure, reliable AI solutions. This hybrid role offers in-office collaboration two days a week in Restelo and flexible remote options.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, AI, or related field.
• Strong understanding of Generative AI, LLMs, and AI automation concepts.
• Experience with AI orchestration platforms such as: n8n, LangChain, LangGraph, CrewAI, AutoGen, Flowise.
• Experience implementing RAG architectures, vector databases, embeddings, and semantic search.
• Hands-on experience integrating systems through REST APIs, GraphQL, webhooks, and messaging services.
• Knowledge of authentication standards: OAuth2, OpenID Connect, JWT, SAML, API Keys.
• Experience with cloud providers: Azure, AWS, or GCP.
• Professional English proficiency.
• Strong analytical and problem-solving skills.

Responsibilities

• Design, develop, and maintain AI agents using n8n and orchestration tools.
• Build and optimize AI workflows integrating LLMs, APIs, databases, and enterprise apps.
• Develop prompts, prompt chains, and agentic workflows for reliability.
• Implement Retrieval-Augmented Generation (RAG) and knowledge-based AI systems.
• Integrate AI solutions with REST APIs, GraphQL, webhooks, and messaging services.
• Design secure authentication and authorization mechanisms for AI apps.
• Monitor AI agent performance, reliability, and operational metrics.
• Ensure compliance with security, privacy, and governance standards.
• Document AI workflows, integrations, and procedures.
• Collaborate with Product, Business, Software, Architects, and Ops teams.

Skills

Generative AI

LLMs

AI orchestration

n8n

LangChain

LangGraph

RAG architectures

Vector DBs

Embeddings

Semantic search

REST APIs

GraphQL

Webhooks

OAuth2

OIDC

JWT

SAML

API Keys

Azure OpenAI

OpenAI

Anthropic

Google Gemini

AWS Bedrock

Azure

AWS

GCP

Pinecone

Qdrant

Weaviate

pgvector

Azure AI Search

English

Education

Bachelor's degree in Computer Science

Tools

n8n

LangChain

LangGraph

CrewAI

AutoGen

Flowise

Pinecone

Qdrant

Weaviate

pgvector

Azure OpenAI

OpenAI

Anthropic

Google Gemini

AWS Bedrock

Job description

We are looking for an AI Agent Developer to join an innovative technology-driven environment focused on building intelligent automation solutions powered by Generative AI.

This is an exciting opportunity to work on the design, development, and optimization of AI agents and automation workflows that streamline business processes, improve efficiency, and deliver tangible business value.

Flexible Hybrid model: 2 days per week in the office in Restelo

Key Responsibilities

• Design, develop, and maintain AI agents using platforms such as n8n and similar orchestration tools.
• Build and optimize AI workflows integrating LLMs, APIs, databases, and enterprise applications.
• Develop and refine prompts, prompt chains, and agentic workflows to maximize AI performance and reliability.
• Implement Retrieval-Augmented Generation (RAG) solutions and knowledge-based AI systems.
• Integrate AI solutions with internal and external platforms through REST APIs, GraphQL, webhooks, and messaging services.
• Design secure authentication and authorization mechanisms for AI applications and integrations.
• Monitor AI agent performance, reliability, and operational metrics.
• Ensure compliance with security, privacy, and governance standards.
• Document AI workflows, integrations, and operational procedures.
• Collaborate closely with Product Managers, Business Analysts, Software Engineers, Architects, and Operations teams to identify and deliver automation opportunities.

Required Skills & Experience

• Bachelor's degree in Computer Science, Software Engineering, Artificial Intelligence, or a related field.
• Strong understanding of Generative AI, LLMs, and AI automation concepts.
• Experience with AI orchestration frameworks and platforms such as: n8n, LangChain, LangGraph, CrewAI, AutoGen, Flowise
• Experience implementing RAG architectures, vector databases, embeddings, and semantic search solutions.
• Hands-on experience integrating systems through REST APIs, GraphQL, webhooks, and messaging services.
• Knowledge of authentication and authorization standards including: OAuth2 OpenID Connect, JWT, SAML, API Keys
• Experience with one or more AI providers such as: Azure OpenAI, OpenAI, Anthropic, Google Gemini, AWS Bedrock
• Cloud platforms (Azure, AWS, or GCP)
• Experience with vector databases such as Pinecone, Qdrant, Weaviate, pgvector, or Azure AI Search.
• Strong analytical and problem-solving skills.
• Professional English proficiency.

Nice to have

• Previous experience with n8n.
• Experience delivering AI-powered business automation solutions in production environments.
• Knowledge of insurance, insurtech, claims, or enterprise process automation domains.

If you're passionate about AI Agents, Automation, LLMs, and the future of intelligent workflows, we'd love to hear from you.