Security Engineer | Mid - Senior | WebSec Team
The world’s most advanced VPN, and a whole lot more.
If you’re a curious problem-solver who carves their own path, join the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN on the planet—tools that put privacy, security, and control back in people’s hands.
Your impact? Helping millions take back control of their online security, privacy, and data.
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.
What We Offer
Sharpen your edge: training, mentorship, and room to grow — always.
Take the time you need: extra vacation days, sick days, and time off when life calls.
Get premium healthcare: private health insurance in Lithuania and Poland — fully covered.
Protect your peace: enjoy free subscriptions to Calm, Headspace, and Mindletic, and our own resilience and mindfulness trainings.
Own your fitness: in-house gyms, sport cards, online workouts, and personal guidance — on us.
Pack your bags for workation: experience our company-wide trip abroad to the fullest.
Work from anywhere: work from wherever keeps you in the zone.
Celebrate your milestones: birthdays, weddings, and new family members — all deserve a gift.
Parent with ease: children’s summer camps and flexibility around the schedule — because parenting never pauses.
Join the party: team building and company events people talk about for months.
Unlock Cyber City: coffee bar, open gyms, kids’ room, music room, massage chairs — our Vilnius HQ is yours to enjoy.