How to Apply for Application Security Engineer | Mid-Senior | Low-level in Lithuania 2026: Eligibility, Last Date & Preparation Guide

NordVPN is seeking a highly skilled Application Security Engineer to fortify the security of our lowest layers and most critical infrastructure components. This mid-senior role focuses on deep technical analysis within low-level codebases, requiring expertise beyond typical application security practices. The core mandate involves securing embedded systems, analyzing firmware for vulnerabilities (e.g., buffer overflows, insecure memory handling), and implementing security measures directly into the silicon level where necessary. You will be responsible for conducting comprehensive reverse engineering exercises, developing custom exploit mitigations, and hardening protocols against state-of-the-art attacks. Key responsibilities include reviewing C/C++ code, auditing hardware interactions, and ensuring compliance with stringent industrial security standards. Successful candidates must demonstrate a profound understanding of operating system internals, memory management, and secure coding practices in resource-constrained environments. This guide explains exactly how to apply for this nord-security post in Lithuania, the important dates, the test pattern, and a preparation strategy to score well.