Overview

Head of Cyber Security Jobs in Ukraine at TunlyVPN

Title: Head of Cyber Security

Company: TunlyVPN

Location: Ukraine

About TunlyVPN

TunlyVPN is a modern privacy-focused VPN service built around speed, reliability, and security.

We believe infrastructure should be trusted by design — without invasive telemetry, unnecessary tracking, or marketing nonsense.

We are looking for a Head of CyberSecurity who will lead and strengthen the company’s security across infrastructure, internal systems, operational processes, and incident response.

Responsibilities

  • Design and implement the company-wide cybersecurity strategy;
  • Audit and secure VPN infrastructure and internal services;
  • Build and maintain a secure-by-default environment;
  • Manage access control, secrets, keys, and infrastructure policies;
  • Develop monitoring, logging, and anomaly detection systems;
  • Perform security reviews of infrastructure and applications;
  • Lead incident response and post-incident analysis;
  • Work closely with DevOps and backend engineering teams;
  • Conduct internal security audits and penetration testing;
  • Research emerging threats and implement modern security practices.

Requirements

  • Strong understanding of Linux systems and networking;
  • Practical experience with WireGuard, firewalls, IDS/IPS, and infrastructure hardening;
  • Solid understanding of Zero Trust architecture principles;
  • Experience with Docker, Kubernetes, and cloud environments;
  • Knowledge of modern attack vectors and defensive techniques;
  • Experience with SIEM and monitoring systems;
  • Understanding of cryptography and secure data handling;
  • Ability to think both like a defender and, occasionally, like an attacker.

Nice to Have

  • Experience working on privacy-focused products;
  • Participation in bug bounty, CTF, or pentest projects;
  • Experience automating security checks and workflows;
  • Open-source contributions;
  • Ability to remain calm while looking at Grafana at 3 AM.

What We Offer

  • Work on real-world high-load infrastructure;
  • Direct impact on the platform’s security architecture;
  • Modern technology stack and engineering freedom;
  • Fully remote work environment;
  • Healthy engineering culture;
  • Opportunity to build security properly — not just for compliance checkboxes.

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