Senior AI Solutions Architect – RAG & Vector DBs (Hybrid)

Decskill; Lisboa; Hybrid; EUR 70,000 - 95,000; Full time

Job summary

Decskill, part of the Astek Group, is seeking a Senior AI Solutions Developer to lead research, testing, development and optimization of AI-powered solutions in a hybrid model.

Based in Lisbon, Porto, or Madrid, the role emphasizes cutting-edge AI, RAG systems, vector databases, embeddings, and multi-LLM orchestration with a focus on performance and cost efficiency. French language at C1 level is required, and 6+ years of experience are expected.

Qualifications

• 6+ years of professional software development experience.
• Strong hands-on experience building and deploying AI-powered applications.
• Proficient in Node.js and/or Python; proven AI solution deployment.

Responsibilities

• Research, test, and develop cutting-edge AI-powered solutions and applications.
• Design, build, and deploy AI agents with advanced capabilities.
• Develop and maintain RAG systems.
• Work with vector databases and semantic search.
• Optimize token usage, context, prompts, and AI workflows for performance and cost.
• Design context and hash-based context management solutions.
• Integrate multiple LLM providers (OpenAI, Anthropic, Google, etc.).
• Identify new AI opportunities across the business.
• Collaborate with cross-functional teams to transform ideas into scalable AI solutions.
• Continuously research emerging AI technologies, tools, and best practices.

Skills

Node.js

Python

AI agents

RAG architectures

vector databases

embeddings

semantic search

prompt engineering

token optimization

context management

LLM integration

French language (C1)

Tools

Pinecone

Weaviate

Chroma

Job description

Decskill, part of the Astek Group, is seeking a Senior AI Solutions Developer to lead research, testing, development and optimization of AI-powered solutions in a hybrid model.

Based in Lisbon, Porto, or Madrid, the role emphasizes cutting-edge AI, RAG systems, vector databases, embeddings, and multi-LLM orchestration with a focus on performance and cost efficiency. French language at C1 level is required, and 6+ years of experience are expected.