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SysMap Solutions

#sejaSysMap #SysMap #soulSysMap

Senior AI Specialist / Data Scientist

Data ScientistData ScientistFull TimeRemoteSeniorTeam 1,001-5,000Since 1999Company SiteLinkedIn

Location

Brazil

Posted

18 days ago

Salary

0

Seniority

Senior

Job Description

Senior AI Specialist / Data Scientist

SysMap Solutions

• Design end-to-end NLP pipelines: entity extraction, terminological normalization, semantic matching and clustering; • Conduct exploratory phases (EDA, data quality assessment, completeness, analytical feasibility) on structured and unstructured datasets; • Define modeling approaches balancing fine-tuning of Transformer models (BERTimbau and similar) and the use of LLMs for extraction/structuring, with clear criteria for reproducibility, cost and auditability; • Build embedding pipelines, RAG and semantic search using vector databases (Qdrant, Milvus, ChromaDB); • Calibrate prioritization scores and anomaly detection (Isolation Forest, Autoencoders, HDBSCAN) in collaboration with domain experts; • Version experiments and models ensuring traceability and governance; • Produce high-level technical and scientific documentation (reports and, when applicable, papers); • Act as the technical interlocutor with domain experts to validate criteria, thresholds and metrics.

Job Requirements

  • Degree in Data Science, Statistics, Computer Science or a related field;
  • 5+ years working on NLP projects in production, preferably in Portuguese;
  • Strong proficiency in Python, pandas, scikit-learn and PyTorch (Transformers);
  • Hands-on experience with Transformer models (BERTimbau, multilingual BERT);
  • Applied Generative AI: prompt engineering, RAG, structured outputs, embeddings and tool use;
  • Experience with Hugging Face transformers, spaCy and sentence-transformers;
  • Experience with vector databases (Qdrant, Milvus or ChromaDB) and similarity search;
  • Solid knowledge of CRISP-DM methodology and fundamentals of MLOps (MLflow);
  • Ability to communicate technical results to both technical and non-technical audiences;
  • Experience serving open-source LLMs (vLLM, Ollama, TGI, llama.cpp) in on-premise GPU environments;
  • Knowledge of GPU orchestration on Kubernetes (GPU pass-through, MIG, NVIDIA GPU Operator);
  • Scientific publications in NLP, ML or applied data science;
  • Experience with free-text datasets with low standardization and typical natural language data quality challenges.

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