Senior Data Scientist - Fluent English

A abertura atual é para a Artefact do Brasil, estamos em modelo Free Office. #LI-Remoto

Who we are

What you will be doing:

We're looking for a qualified Senior Data Scientist with Python/Pyspark experience to join our data team. In this role, you'll be responsible for designing, building, and maintaining scalable data products that support our analytics and data-driven products.

• Design, develop, and deploy end-to-end machine learning models, from data acquisition and feature engineering to production monitoring.
• Collaborate with data analysts, product managers, and engineering teams to translate business problems into data science frameworks and ensure impactful outcomes.
• Develop and refine complex data features from large-scale datasets to improve model accuracy and business performance.
• Champion data quality and integrity, defining the requirements for robust datasets needed for advanced analytics and modeling.
• Monitor, analyze, and troubleshoot the performance of deployed models, addressing issues like concept drift, data quality degradation, and performance bottlenecks.
• Provide technical leadership in the application of statistical modeling, machine learning, and advanced analytics to solve complex business problems.
• Document and present complex methodologies, model findings, and strategic recommendations to both technical and non-technical stakeholders.
• Lead by example, championing a culture of scientific rigor, experimentation, and continuous learning within the data science team.
• Mentor and coach junior data scientists and analysts, fostering their growth through code reviews, design discussions, and knowledge sharing.

What we are looking for:

A degree in Computer Science, Statistics, Engineering, Economics, or a related quantitative field.

• Strong communication and interpersonal skills, with the ability to collaborate across multiple teams and levels of the organization.
• Demonstrated ability to balance hands-on technical delivery with mentoring and team enablement.
• Excellent problem-solving skills, with the ability to troubleshoot complex technical issues.
• Curiosity: You are passionate about finding innovative solutions to complex problems. You seek to understand the entire value chain and how your ML models integrate with front-end applications, back-end systems, and the underlying data infrastructure to deliver business value.
• Collaboration: Knowledge sharing is essential to you, and you actively contribute to spreading information within Artefact.
• Entrepreneurship: You bring solutions, new ideas, and innovations.
• Fluent English: You are comfortable communicating in English, as it is essential for working in our international environment.

Required Technical Experience;

You have practical experience with several tools and technologies in the modern data stack, such as:

• Programming Languages:
  *Strong skills in Python for data science (pandas, numpy, scikitlearn, pyspark)  
  *[Nice to Have] Experience with a deep learning framework like PyTorch or TensorFlow/Keras
• Cloud Data Platforms:Hands-on with at least one of 
  *Google Cloud Platform (GCP), AWS, Azure, Databricks
• Data Warehousing & Databases: Familiar with tools such as
  *PostgreSQL, SQL Server, BigQuery, Snowflake
• Machine Learning models: Experience with:
  *Supervised learning models (xgboost, logistic regression, etc)
  *Unsupervised learning models (clustering algorithms)
• MLOPS: Experience with at least one:
  *Databricks, mlflow, AWS Sagemaker, Vertex AI
  *Git code versioning workflow and platforms (Github, Azure Devops, Gitlab etc)

What we offer:

• 💳 Meal & Transportation Benefits (VR/VT)
• 🏡 Free Office – work from home or anywhere you want!
• 💪 Gympass – access to gyms and wellness programs
• 🛡️ Insurance – life, health, and dental coverage
• 📅 In-person Meetings 3x a Year – our famous “Get Together” with workshops, talks, trainings, and happy hour!
• 🏢 Woba – book a coworking space wherever you like!
• 📈 Semiannual Reviews – with opportunities for promotion

Why you should join us

• Artefact is the place to be: come and build the future of the data fiel
• Progress: every day offers new challenges and new learning opportunities
• Culture: Empathy and Collaboration are in our DNA
• Entrepreneurship: you will join a team of motivated entrepreneurs. We won't give up until we make a big difference in this industry!

Join us!