Join our team as
Site Reliability Engineer - VPN Service · Mid-Senior· NordVPN
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.
NordVPN operates a globally distributed VPN and DNS infrastructure serving millions of users. Your responsibility is the service itself - deploying, managing, and improving VPN nodes worldwide while ensuring every client connection is fast, stable, and secure.
You'll work closely with application teams to guarantee smooth client connectivity end to end. Quality and reliability are the job.
Main responsibilities
Deploy and manage globally distributed VPN and DNS services
Ensure connection quality, stability, and performance across the entire node fleet
Collaborate with application teams on client connectivity and protocol behavior
Optimize VPN service performance - kernel tuning, flamechart analysis, profiling
Manage security posture - firewalls, PKI, certificate lifecycle, hardening
Manage authentication and authorization infrastructure
Own configuration management and automated provisioning of infrastructure
Clear written incident communication and postmortem ownership
Core requirements
Own critical VPN services end-to-end including architecture, scalability, security and monitoring
Deliver OKRs and key commitments within agreed timelines
Write RFCs/ADRs for new features, refactors, etc
Raises engineering quality through standards, design reviews, knowledge sharing and mentorship
Balances reliability, security and delivery speed with strong operational judgment
Advanced networking - VPN protocols, tunneling, routing, DNS
Linux at depth - kernel internals, tuning, module management
Firewall management
Performance analysis - flamecharts, profiling, bottleneck identification
OSI model fluency - L2 through L7, TCP/IP stack, SSL/TLS
Security fundamentals - PKI, certificate management, hardening
Authentication and authorization - RADIUS, access control
Configuration management and automated deployments
Load balancing and failover for distributed services
Docker
Bonus Points For
Python programming
C, Rust, or Go - for lower-level service and performance work
Observability knowledge - monitoring, metrics, logging for VPN services
On-demand bare-metal/hardware provisioning
eBPF, strace, and advanced debugging/tracing tools
Virtualization - KVM, MicroVM
Kubernetes networking
Interest in AI tooling - Claude Code, agentic engineering, LLM integrations in engineering workflows
Tools You Will Use
Linux kernel and networking stack
SaltStack
Consul
Firewall - nftables
DNS - BIND, dnsdist, Unbound
FreeRADIUS
Vault and PKI infrastructure
MySQL (Percona), Redis
Docker
iPXE
What we offer
🎓 Sharpen your edge
Growth is built into how we work. Extensive online and in-person training programs, access to platforms like Coursera and Skillshare, a mentorship program, and internal career moves when you’re ready for something new — your development has no ceiling here.
🌿 Take the time you need
Rest isn’t a reward — it’s part of the deal. Enjoy extra vacation days that grow with your time here, plus additional days off for sick leave, special occasions, and parenting.
🏥 Get premium healthcare
Your health shouldn’t be something you worry about. We provide premium private health insurance so you have peace of mind and fast access to care whenever you need it. Available in Lithuania and Poland.
🪷 Protect your peace
A peaceful mind isn’t a luxury — it’s the foundation. We provide free subscriptions to top-rated Calm, Headspace, and Mindletic apps, offer resilience and mindfulness trainings, and run dedicated mental health events.
🏋🏻 Own your fitness
Feeling good shapes how you work, think, and create. That’s why we offer in-house gyms, Multisport and Urban Sport cards, and online workouts. Need something tailored? Our Physical Well-Being experts are here with group mobility sessions, fitness guidance, and one-on-one consultations.
🌴 Pack your bags for workation
Picture this: the entire company flies out abroad. The days are packed with workshops, activities, concerts, and real time together. It’s legendary. If you’ve heard stories, they’re probably true.
✈️ Work from anywhere
New surroundings spark new thinking. When you need a reset, switch location and work from wherever keeps you sharp, creative, and in the zone.
🎁 Celebrate your milestones
The moments that make life special shouldn’t pass quietly. Birthdays, work anniversaries, weddings, new family members — each is marked with a special gift.
👶🏻 Parent with ease
When you’re a parent, the juggle is real. To make it smoother, we organize summer camps for the little ones and offer flexibility that lets you show up both for your family and your team.
🎉 Join the party
It never gets boring here. Get ready for team buildings that bring people closer, year-round company events that are equal parts educational and energizing, and the highlights everyone waits for — our iconic summer and winter celebrations.
⭐ Unlock Cyber City
Whether Vilnius-based or visiting from remote, our Vilnius HQ is fully yours to enjoy. Need focus? Silent room. Need energy? Open gyms. Need a break? Game room, music room, coffee bar. It’s a modern workspace built with your comfort in mind.
Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes.
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.
By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. As part of our recruitment process, we may use an AI-based application review tool to help assess applications based on skills and experience relevant to the role. This technology is used to support - not replace - human decision-making, and every application is ultimately reviewed by a recruiter.
If you would like more information about how AI is used in this process or wish to exercise your rights under applicable data privacy laws, please contact us at [email protected]. Should you prefer to opt out of the automated evaluation, please submit your application directly to [email protected].
Congrats — we have received your application!
If your application is a good fit for our team, we’ll contact you directly.