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Surfshark

VPN service with privacy protection suite

Mid/Senior Data Scientist

Applied Machine LearningConfirmed live in the last 24 hours
Full-time€3.5k - €6.8k /mo

About the Job

Requirements

  • Proven experience in applied machine learning, including independently owning and delivering machine-learning projects from problem definition to validated results or production.
  • Hands-on machine-learning modeling experience with structured and unstructured data.
  • Advanced Python skills and the ability to write clean, efficient, and maintainable code.
  • Solid SQL skills and experience working with large, imperfect, real-world datasets.
  • Strong understanding of machine-learning fundamentals, model evaluation, and common failure modes.
  • Ability to translate ambiguous business problems into practical machine-learning solutions, make informed technical decisions, and communicate results and trade-offs clearly.
  • Experience with collaborative development practices, including version control, code reviews, testing, and reproducible experimentation.
  • Comfort with AI-assisted coding tools while maintaining high standards for code quality, correctness, and maintainability.

Responsibilities

  • Design, develop, and deploy machine-learning solutions for real-world problems, including churn prevention, fraud detection, customer lifetime value prediction, and scam identification.
  • Write clean, efficient, and testable Python code for data pipelines, feature engineering, modeling, and evaluation.
  • Own models end to end, from problem framing, data exploration, model selection, and validation through deployment and iteration.
  • Work with product and engineering teams to turn ambiguous problems into concrete, data-driven solutions.
  • Explore, evaluate, and apply modern machine-learning approaches, balancing model performance, complexity, and real-world impact.
  • Communicate findings to technical and non-technical stakeholders, focusing on decisions, trade-offs, and outcomes to support informed business decisions.

About the Company

Surfshark

VPN service with privacy protection suite

Surfshark focuses on protecting people’s digital lives by offering a range of privacy and security tools centered on a top VPN service. Its core product is a VPN that encrypts internet traffic and hides a user’s IP, helping online privacy and access to geo-restricted content. Beyond the VPN, Surfshark also develops Antivirus, Alert (data-leak detection), a private search tool (Search), Incogni, Dedicated IP, and Alt-ID, creating a bundled security suite. The company differentiates itself by providing a human-centered privacy approach and a multi-product security bundle, not just a VPN, to address broader online threats. It aims to make privacy protection easy and accessible for millions of users across 100+ countries, continually expanding its product lineup and global presence to secure digital lives across devices and platforms.

Company size
501-1,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Vilnius, Lithuania
Founded
2018

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