LLM / AI Engineer

About the Position

LLM / AI Engineer

Porto · Senior · Full-time

In this role, you will turn AI proofs of concept into reliable, production-grade agentic systems for core industrial workflows. You will design and refine intelligent agents for tasks like quality report analysis, requirements matching, CAD model reviews, and compliance checks. By building advanced retrieval strategies, multi-agent systems, and evaluation frameworks, you will transform cutting-edge AI into practical engineering tools.

Responsibilities

• Design, build, and continuously refine production-grade LLM agents utilizing RAG pipelines, tool use, and multi-step reasoning models.
• Design and optimize sophisticated retrieval strategies including advanced chunking, vector database embeddings, and hybrid search methods.
• Contribute to a robust evaluation framework to continuously measure answer quality, benchmark performance, and mitigate hallucination risks.
• Support complex data ingestion across heterogeneous, unstructured sources using Azure Document Intelligence for OCR and structured data extraction.
• Bring technical expertise to bring new roadmap use cases into production, including automated review of CAD models/technical drawings and safety-critical document consistency checks.
• Help shape in-house multi-agent orchestration architecture as the company scales AI directly into core engineering domains.

Requirements

• Professional experience in software engineering, data science, or system design, with hands-on experience building and deploying LLM applications and AI systems.
• Strong, production-proven Python skills combined with experience working in cloud ecosystems (Azure AI Foundry preferred).
• Practical familiarity with RAG pipelines, vector databases, embedding models, and agentic workflows (experience with Claude Code or similar agent tooling is a plus).
• High level of personal ownership, strong critical thinking, and a self-directed mindset comfortable with ambiguity in a remote-first team.
• Excellent communication skills in English to explain complex AI architectures to cross-functional and non-technical stakeholders.

We Offer

• Remote-flexible environment
• Highly attractive salary and benefits
• Great work-life balance and flexibility
• Commitment, quality, and continuous improvement as core principles of our culture
• Highly engaged tech community
• International career opportunities
• Focus on individual development

About the Company

xelerate.tech is passionate about software, tech, and people. We aim to attract the most talented engineers to deliver high-quality software products through highly performant teams.

A Note from Our Team

We know that applying for a new job can be a big step in your life and a bit intimidating, but also an opportunity to improve your professional and personal life. Don’t worry, we’ve got you. We will be with you every step of the way. If you have any questions or concerns before applying, feel free to reach out to us at [email protected]. We look forward to your application!

Apply for this Role

We currently only accept applications from candidates who live in Portugal.