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Data Scientist

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At Cloudflare, we have our eyes set on an ambitious goal: to help build a better Internet. Today the company runs one of the world’s largest networks that powers trillions of requests per month. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare have all web traffic routed through its intelligent global network, which gets smarter with every request.

About the Department

Information Security at Cloudflare is a focused team committed to helping secure both Cloudflare and our customers. The Detection and Response team is responsible for engineering the systems and programs needed to protect our company and customer from real-world threats.

About the Role

We are looking for Data Scientists to join our Detection and Response team to build advanced threat detection capabilities, and to automate security operations. You will train and deploy Machine Learning (ML) models for anomaly detection, user & entity behavioural analysis, and SIEM automation. The role requires experience in statistics, data science and interest in cybersecurity.

What you'll do

  • Understand complex distributed systems and business processes, and work with security engineers to build their threat models
  • Analyze and transform large datasets for feature engineering, labelling and improve data fidelity
  • Build anomaly detection engines with unlabeled and semi-labelled datasets based on threat models and abuse scenarios
  • Work with threat researchers and security engineers to understand Incident Response process, and improve the process with predictive data modelling
  • Train and deploy statistical, machine learning, and deep learning models
  • Continuously monitor the performance of models though active learning or similar processes, and strive to improve model efficacy

Main requirements

  • MSc or PhD in Computer Science, applied mathematics, or a related engineering discipline
  • At least 4 years of industry experience in analyzing large datasets, modelling and machine learning algorithms
  • Experience in high-level programming languages like Python (Numpy, Scipy, Pandas)
  • Experience with Spark, SQL, Tableau, Google Analytics, Hive and BigQuery (or any other Big data/Cloud equivalent) etc.
  • Familiar with the challenges of collecting, processing and labelling large datasets, preferably in the Security domain
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Python
SQL
Tableau
Google Analytics
Spark
BigQuery
NumPy

Localidade:Lisboa
Contrato:Contrato permanente
Tipo:Full-Time
Categoria:Data scientist
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