Security Engineer | Mid - Senior | WebSec Team

NordVPN logo
Full Time
hybrid
Infrastructure
Vilnius / Kaunas
At Nord Security, we’re creating a safer cyber future.

We help people and businesses take back control of their online security, privacy, and data. From VPNs to password managers, threat intelligence to eSIMs for travel—our teams turn complex problems into solutions trusted by millions worldwide.

Life is online. In this role, you’ll help people own it.

Main Responsibilities

  • Conduct penetration testing on web and backend applications, networking components, and crypto services. White, grey box, or black box – you name it!
  • Show your reverse engineering skills in finding bugs during code review of cutting-edge security solutions.
  • Design and create solutions to handle complex security issues from scratch;
  • Develop scripts and security automation tools to enhance penetration testing processes.
  • Closely collaborate with web and backend application developers, other tech geeks, to validate, assess, and understand the root cause of vulnerabilities, and work on their mitigation.
  • Spread your security knowledge with hundreds of your colleagues!

Core Requirements

  • Proven experience in conducting application security assessments, including planning, testing, and vulnerability reporting;
  • Proficiency using security scanners, static code analyzers, and debuggers;
  • Understanding of networking and cryptographic fundamentals such as TLS, PFS, PKI, and digital certificates.
  • Demonstrated ability to perform manual security code audits;
  • Previous experience with fuzzing, reverse engineering, and exploit development.
  • Experience working with application developers to validate, assess, understand the root cause, and mitigate vulnerabilities;
  • Strong knowledge in application and infrastructure testing methodologies;
  • Knowledge in secure architecture design and assessment (manual approach to penetration testing);
  • Bonus points for community contributions like public CVEs, bug bounty recognition, open-source tools, blogs, certificates etc.

Salary Range

  • Gross Salary 3200-6000 EUR/Month.

Perks we offer

Our global mission fuels our drive. But when you need that extra push - here’s a list of things to look forward to.

Apply for this job

Infrastructure

Vilnius / Kaunas

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Nord Security is committed to building an inclusive workplace with a diversity of backgrounds. We welcome applications from people of all ages, gender identities, sexual orientations, racial identities, ethnicities, religious beliefs, and disability statuses. To reduce the chance of unconscious bias, you may submit your CV without a photograph or other redundant information like age or marital status.

We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we’ll let you know in advance.

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Our values

Our values are rooted in the actions of our people. They describe how we solve problems, make decisions, and ultimately - reach our goals as a team.