A3Data

Machine Learning Engineer – Mid-level

A3Data

full-time

Posted on:

Location Type: Remote

Location: Brazil

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Tech Stack

AirflowPySparkPythonPyTorchScikit-LearnTensorflow

About the role

  • Develop, train, and improve Machine Learning models, ensuring reproducibility, scalability, and production monitoring;
  • Implement and manage the model lifecycle, with versioning for code, data, metrics, and artifacts, following MLOps best practices;
  • Package models as scalable, highly available services integrated into automated pipelines;
  • Support and continuously improve ML solutions in production, identifying and fixing issues;
  • Collaborate with Data Engineering, Data Science, and business teams in a multidisciplinary environment;
  • Perform code reviews and support the technical development of more junior engineers;
  • Participate in technical discussions with clients, explaining solutions, architectural decisions, and trade-offs.

Requirements

  • Strong experience in Python, applying software development best practices;
  • Intermediate knowledge of Machine Learning frameworks (e.g., Scikit-learn, TensorFlow, PyTorch, XGBoost);
  • Experience with the ML model lifecycle and MLOps concepts;
  • Experience with data pipelines and/or distributed processing (e.g., PySpark);
  • Knowledge of job and workflow orchestration (e.g., Airflow or similar);
  • Experience with containers and basic orchestration concepts;
  • Experience in cloud environments and CI/CD pipelines applied to Machine Learning.
Benefits
  • Meal/Food allowance via Swile.
  • SulAmérica health plan with no copayment and no monthly fee for the employee.
  • Amil dental plan (optional).
  • Guapeco: pet health benefit.
  • TotalPass: access to gyms and wellness services.
  • Bonus and PLR: profit-sharing and bonuses based on company performance.
  • Vittude: psychological support and mental health care.
  • Open English: discounts on language courses.
  • "Empresa Cidadã": extended maternity and paternity leave.
  • Samsung EPP: exclusive discounts across the full Samsung product portfolio.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonMachine LearningScikit-learnTensorFlowPyTorchXGBoostMLOpsdata pipelinesPySparkCI/CD
Soft Skills
collaborationcode reviewstechnical developmentcommunicationproblem-solving