AI Engineer

Visor; Portugal; Presencial; EUR 40 000 - 60 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Competitive compensation package

Health insurance

Career growth opportunities

Access to training, events, and conferences

Remote First model with office perks

Arcade machines

Rooftop terraces

Team events

Fun workplace

Resumo da oferta

A leading AI company in Portugal seeks an AI Engineer to design and advance AI systems for their platform. You will work on end-to-end NLP pipelines and LLM architectures, optimizing AI interactions. Ideal candidates have experience in Data Science, strong Python skills, and familiarity with ML libraries and frameworks. The position offers competitive compensation, health insurance, and career growth opportunities. Join a dynamic team dedicated to innovating AI solutions.

Qualificações

• 1-3 years of experience in a Data Science, AI or NLP Engineer role.
• Strong programming skills in Python and core Data Science & ML libraries.
• Experience building and delivering ML products in production environments.
• Experience deploying ML products in production.
• Hands-on experience with LLMs in production.
• Familiarity with RAG pipelines and vector databases.
• Understanding of context window management and prompt design.
• Experience with LLM observability and monitoring.
• Experience with LangChain, LlamaIndex, or Hugging Face Transformers.

Responsabilidades

• Design and develop end-to-end NLP pipelines.
• Build and maintain systems for intent detection and entity extraction.
• Integrate AI components into scalable microservices.
• Work with embedding models for semantic search and document retrieval in contact centers.
• Design and implement agentic architectures with tool use and multi-step reasoning.
• Develop memory and context management for multi-turn conversations.
• Evaluate models with hallucination checks, faithfulness scoring, and latency considerations.
• Integrate AI components into scalable, production-ready microservices with low latency.
• Collaborate with product and engineering to design AI-powered features.

Conhecimentos

Programming skills in Python

Experience with core Data Science & ML libraries

Solid understanding of NLP fundamentals

Hands-on experience with LLMs in production

Experience with vector databases

Gensim

LLMs in production

RAG pipelines

Vector databases

LangChain

LlamaIndex

Hugging Face Transformers

NLP fundamentals

Embeddings

Information extraction

NER

Intent classification

Ferramentas

Pandas

scikit-learn

NLTK

spaCy

Gensim

Descrição da oferta de emprego

Join Visor.ai as an AI Engineer!

At Visor.ai, we’re on a mission to revolutionize AI and automation for Contact Centers. By humanizing AI Agents, we help companies automate up to 85% of customer interactions, enhancing efficiency without compromising experience.

Founded in 2016 with big dreams and an innovation award, we've since grown into a trusted AI partner for leading brands across multiple industries and countries. Now, we're looking for a Data Scientist to join our AI Team and help us build the next generation of our intelligent platform!

Your Mission

As an AI Engineer, you'll play a critical role in designing and advancing the AI systems that power our platform. From classical NLP to cutting‑edge LLM architectures, you'll shape the intelligence behind every conversation. Your responsibilities will include:

• Design and develop end‑to‑end NLP pipelines — from classical text processing to state‑of‑the‑art LLM‑powered architectures
• Build and maintain systems for intent detection, NER, entity extraction, and text classification, both standalone and as components feeding into larger LLM workflows
• Design and optimize Retrieval‑Augmented Generation (RAG) systems — chunking strategies, vector store architecture, hybrid search (dense + sparse), and re‑ranking pipelines
• Work with embedding models for semantic search, document retrieval, and intent classification in contact center contexts
• Design and implement agentic architectures — tool use, function calling, multi‑step reasoning, and orchestration with frameworks like LangChain, LlamaIndex, or custom‑built solutions
• Develop memory and context management strategies — short‑term conversation memory, long‑term user context, and context window optimization for multi‑turn interactions
• Evaluate and benchmark models rigorously: hallucination detection, faithfulness scoring, latency/token cost tradeoffs, and continuous performance monitoring
• Integrate AI components into scalable, production‑ready microservices with a focus on low‑latency inference pipelines
• Collaborate with product and engineering to design new AI‑powered features and drive innovation across the platform

Your Skills & Experience

• 1‑3 years of experience in a Data Science, AI or NLP Engineer role
• Strong programming skills in Python and core Data Science & ML libraries (Pandas, scikit‑learn, NLTK, spaCy, Gensim)
• Solid understanding of NLP fundamentals — word embeddings, NER, information extraction, intent classification, text similarity
• Experience building and delivering ML products in production environments
• Hands‑on experience with LLMs in production (OpenAI, Anthropic, Mistral, LLaMA, Gemini, or equivalent)
• Familiarity with RAG pipelines
• Experience with vector databases (Pinecone, Weaviate, Qdrant, pgvector, etc.) and modern embedding models
• Understanding of context window management, token budgeting, and prompt design for multi‑turn conversations
• Experience with LLM Observability and Monitoring
• Experience with LLM frameworks such as LangChain, LlamaIndex, or Hugging Face Transformers

Bonus

• Experience with agentic frameworks, function calling, or structured outputs
• Exposure to voice AI pipelines or speech‑to‑text systems
• Comfortable with cloud infrastructure and ML deployment (AWS, GCP, or Azure)

What’s in It for You?

• Competitive compensation package
• Health insurance
• Career growth opportunities
• Access to training, events, and conferences
• Remote First model – and if you stop by one of our offices, get ready for: Free coffee, Arcade machines, Rooftops & terraces, Team events, A lot of fun!

Ready to build the future of AI with us? Apply now and join the ride! 💪