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Data Scientist

Brasil🌐 Remote💼 Full-time🗓 2026-09-22 → 2026-09-24

Core

Define measurable business questions, select appropriate ML methods, and validate models to provide actionable insights for clients who lack clear metrics.

Role type

Senior IC Data Scientist (Production AI Systems)

Builds

Production-ready ML models, baselines, and measurement frameworks for client environments

Domain

AI Engineering / Data Science / Client Delivery

Deliverable

production ML models

Required skills

Machine learning and deep learning (supervised/unsupervised), CNNs, Transformers, PyTorch, pandas, NumPy, scikit-learn, statistics and experimental design, error analysis, cloud AI services (AWS/GCP/Azure), AI-assisted coding tools

Preferred skills

LLM evaluation, open-weight fine-tuning (LoRA/QLoRA/PEFT), multimodal work, causal inference, MLOps tooling, compliance delivery (SOC 2/HIPAA)

Technologies

PyTorch, AWS SageMaker, Google Vertex AI, Azure Machine Learning, MLflow, Weights & Biases, Kubeflow, Claude Code, Cursor, GitHub Copilot

Responsibilities

Translate business decisions into measurable questions, choose between complex models and simpler baselines, fine-tune pretrained models, design experiments and report uncertainty, perform error analysis to distinguish data/label/method issues, hand over documented models with defined success metrics

Seniority

Senior, hands-on IC

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