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Senior Data Scientist

Senior Data Scientist

Asenium ConsultingPortugal, Portugal, Portugal
Há 17 dias
Descrição da vaga

We seek an experienced Data Scientist to join a cutting-edge AI team working on scalable, production-ready solutions.

Location : Lisbon or Porto (60% remote / 40% on-site)

Languages required : English (minimum B2)

Responsibilities :

  • Develop, fine-tune, and deploy GenAI models using AWS Bedrock, SageMaker, and Lambda
  • Work with LLMs, embeddings, transformers, and diffusion models for NLP and image generation
  • Optimize prompt engineering, fine-tuning, and RLHF (Reinforcement Learning from Human Feedback) techniques
  • Build scalable MLOps pipelines using SageMaker, ECS, and Kubernetes
  • Manage large-scale datasets with AWS Glue, Athena, and Redshift
  • Implement vector databases (Pinecone, Weaviate, FAISS, Amazon OpenSearch) for RAG (Retrieval-Augmented Generation) systems
  • Design and optimize ETL pipelines for AI / ML workflows
  • Collaborate with DevOps, Software Engineers, and product teams to deploy AI models into APIs and applications
  • Ensure data privacy, compliance, and model security
  • Monitor model performance and retraining needs using CloudWatch, MLFlow, and observability tools

Requirements :

  • Proven background in Data Science, Machine Learning, and Generative AI
  • Strong skills in Python, SQL, and ML frameworks such as TensorFlow, PyTorch, and Hugging Face Transformers
  • Expertise with AWS AI / ML stack : SageMaker, Bedrock, Lambda, Comprehend
  • Experience with LLMs, embeddings, transformers, and diffusion models
  • Familiarity with RAG, vector databases, and knowledge graphs
  • Experience in MLOps, Docker, Kubernetes, and CI / CD pipelines
  • Understanding of cloud optimization, distributed computing, and AI model scaling
  • Data engineering experience with Glue, Athena, or Spark
  • Knowledge of NLP, image generation, or multimodal AI
  • Interested candidates should send their CV and rate to or apply directly.

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    Data Scientist • Portugal, Portugal, Portugal