NordVPN runs a global edge infrastructure serving millions of users. Knowing what's happening across that infrastructure - in real time, at scale, without drowning in noise - is what this role exists to solve. We're looking for a Senior Site Reliability Engineer (SRE) focused on observability: designing monitoring systems, improving signal quality, reducing alert fatigue, and collaborating with data teams on anomaly detection. You'll own how we understand the health and behavior of our distributed systems. **Main responsibilities** - Design, build, and improve monitoring pipelines and observability tooling across globally distributed infrastructure - Define and implement service-level monitoring based on golden signals (latency, traffic, errors, saturation) - Reduce alert fatigue - build meaningful, actionable alerts that engineers trust - Develop and maintain custom exporters, scripts, and integrations for metrics and log collection - Collaborate with the data team on anomaly detection and data-driven operational insights - Understand service signals - know what to measure, why, and what the numbers actually mean **Core requirements** - Distributed systems observability - monitoring architecture, signal design, dashboarding - Golden signal thinking - you design monitoring around what matters, not what's easy to measure - Alert design - reducing noise, building actionable alerts, managing on-call sanity - Python - scripting, custom exporters, automation, data processing - Linux administration and debugging - Networking fundamentals **Bonus Points For** - SaltStack - Advanced networking - traffic analysis, protocol-level debugging - Advanced data knowledge - aggregation strategies, downsampling, cardinality management, retention trade-offs - Proven track record of onboarding new systems/services into monitoring from scratch - Familiarity with agentic engineering - Claude Code, LLM integrations, MCP workflows **Tools You Will Use** - Naemon (Nagios) and Gearmand - Prometheus-based exporters - Telegraf - Fluent Bit - VictoriaMetrics ecosystem - OpenSearch - Grafana **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.