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CloudLinux

Security Researcher - Team Lead (remote-only, Europe)

CloudLinux
Poland · Full-time · Mid-Senior

CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we all are successful. We are truly a great place to work!

Imunify360 Security Suite is an innovative security solution designed specifically for shared and VPS/Dedicated servers. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention.

Want to know more about Imunify? Visit imunify360.com.

Curious about who we are? Check out cloudlinux.com.

We are looking for a talented Security Researcher - Team Lead to join our Imunify team!

This exciting opportunity involves leading a dynamic team of talented web protection engineers. Together, you and your exceptional team will have the chance to play a crucial role in ensuring top-notch web security. Work is fully remote so you can work from anywhere.

Responsibilities:

  • Managing the Web Protection Team (Security Engineers & Researchers)
  • Guiding the team by example and leading technical planning
  • Reviewing code and team deliverables while supervising new releases
  • Monitoring data from servers and improving existing Web Application Firewall (WAF) rules
  • Driving new research and experiments on Web Attacks and Bot Protection
  • Helping the team mature the existing codebase written in Python


Requirements


We are looking for someone who has:

  • BSc in Computer Science, Applied Mathematics, or a similar field
  • 3+ years of experience as a Team Lead
  • Experience in Python, including building prototypes or security automation
  • A deep understanding of Web Security, Network Security, and Bot Protection
  • Knowledge of SQL queries
  • Fluency in English (upper-intermediate level or higher)


Nice to have:

  • Understanding of web hosting environments
  • Understanding of the Linux command line
  • Knowledge of ModSec, OSSEC, and/or regular expression syntax for security rules
  • Familiarity with hosting control panels (cPanel, DirectAdmin, etc.) and/or content management systems (WordPress, Joomla, etc.)


Personal skills:

  • Fast learner, proactive
  • Strong self-motivation, driven to achieve committed milestones
  • Strong prioritization skills and a flexible mindset
  • Ability to independently analyze a task and find the right solution
  • Ability to work with vague requirements and make independent decisions
  • Ability to work in a team and lead


Benefits


What's in it for you?

  • A focus on professional development
  • Interesting and challenging projects
  • Flexible working hours
  • Paid one month vacation per year and unlimited sick leave
  • Medical insurance reimbursement
  • Co-working and gym/sports reimbursement
  • The opportunity to receive a reward for the most innovative idea that the company can patent

By applying for this position, you agree with Cloudlinux Privacy Policy and give us your consent to maintain and process your personal data with this respect. Please read our Privacy Policy for more information.

Key Skills

Ranked by relevance

linux network security prototypes wordpress firewall python joomla sql
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Posted
Sep 04, 2025
Type
Full-time
Level
Mid-Senior
Location
Warsaw
Company
CloudLinux

Industries

Non-profit Organizations Primary Secondary Education

Categories

Information Technology

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