Site Reliability Engineer

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.

Are you excited by the challenge of managing large-scale systems, automating infrastructure, and ensuring seamless service reliability? We're seeking a Staff Site Reliability Engineer (SRE) to play a key role in shaping the future of our global infrastructure.

Overseeing a global infrastructure of :10,000 on-prem servers, you'll tackle unique technical challenges, engineer scalable systems, and have a direct impact on the reliability and performance of our products.

Main Responsibilities

• Deliver projects on time: Plan, delegate, execute, and oversee key projects;
• Collaborate: Work closely with stakeholders and other teams. Mentor colleagues and lead knowledge transfer;
• Ensure quality and reduce technical debt: Deliver solutions with solid design and address blockers, toil, and debt to keep systems healthy;
• Drive engineering excellence: Aim for quality and choose the right solution for the problems we face;
• Protect solution quality: Ensure designs are implemented with proper quality and minimal tech debt;
• Data‑backed decisions: Help teams and stakeholders navigate data and act on insights;
• Design and maintain highly available, scalable infrastructure with monitoring, alerting, and anomaly detection;
• Automate everything: Create and optimize automation to streamline deployments, improve speed, and cut manual work;
• Solve complex issues: Troubleshoot, debug, and resolve critical issues in complex systems;
• Use AI: Integrate AI into workflows and processes to speed up delivery and reduce toil

Core Requirements

• Observability: Experience with monitoring tools and frameworks to ensure system observability (OpenSearch, VictoriaMetrics, Prometheus, Thanos, Mimir, OpenTelemetry, Nagios);
• Databases and storage systems: Experience operating highly available SQL, NoSQL databases, and object stores at scale (MySQL, Percona, PostgreSQL, Cassandra, ClickHouse, Timescale, Druid, MinIO);
• Data visualization: Ability to build meaningful dashboards that show the right insights (Grafana, OpenSearch Dashboards);
• Alerting and anomaly detection: Ability to build anomaly detection and alerting pipelines;
• Programming: Proficiency in one or more programming languages for automation scripts and integrations (Python, Go, Rust, C);
• Linux: Strong knowledge of Linux systems, especially Debian‑based distributions;
• Workflow: Ability to use workflow automation frameworks (Airflow, Prefect, n8n);
• Configuration management: Ability to design and develop configuration management codebases and deployment pipelines (SaltStack, Ansible, Rundeck);
• Networking: Strong understanding of networking protocols and concepts (Overlay, VPN, Proxy, DNS, HTTP, SSL, TCP, UDP);
• Security: Ability to design secure systems and working knowledge of security concepts and tools (Vault, PKI, mTLS)

Salary Range

• Gross Salary PLN/Month

What We Offer

Innovate with industry leaders

Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.

Learn & grow

Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.

Hybrid work

Enjoy the flexibility with 3 office days and working from home for the remaining 2.

Work from anywhere

Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.

Physical well-being

Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card.

Mental & emotional health

Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.

Premium healthcare

Receive private health insurance giving you peace of mind for your health needs.

Joyful moments – special treats

Celebrate life's big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.

Company events & team-building

Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.

Workation

Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.

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 Should you prefer to opt out of the automated evaluation, please submit your application directly to
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.