Data Scientist (AI)

TL;DR

Data Scientist (AI): Developing and optimizing conversational AI solutions and large language models with an accent on prompt engineering, model fine-tuning, and production deployment. Focus on building advanced dialogue systems, reducing inference latency, and ensuring high performance for domain-specific AI applications.

Location: Hybrid (must be based in Lisbon, Portugal, or able to commute to the office 2 times per week; requires Portuguese or EU citizenship, or a valid Portuguese work permit)

Company

hirify.global is a consulting firm focused on connecting technology professionals with diverse national and international projects.

What you will do

• Develop and maintain conversational AI architectures and dialogue systems.
• Fine-tune transformer-based LLMs for specific domain requirements.
• Implement and optimize LLM workflows using frameworks like PyTorch and TensorFlow.
• Design prompt engineering strategies for applications using models like GPT-4, Claude, and LLaMA.
• Optimize production models to reduce latency and infrastructure costs.
• Collaborate with cross-functional teams to integrate AI models into scalable services.

Requirements

• PhD or Master's degree in Computer Science, AI, NLP, or a related field.
• At least 2 years of professional experience as a Data Scientist.
• Deep understanding of transformer architectures and conversational AI.
• Proficiency in PyTorch, TensorFlow, and various LLM APIs.
• Fluent in English and Portuguese (minimum B2 level).
• Must have legal right to work in Portugal (EU citizenship or valid work permit).

Culture & Benefits

• Welcome kit upon joining.
• Structured career progression opportunities.
• Health insurance plan.
• Coverflex meal card benefit.
• Professional career coaching and well-being support.
• Access to a diverse network of international tech partners.