Senior Site Reliability Engineer — Observability Engineer | NordVPN

Full Time

hybrid

Infrastructure

Vilnius / Kaunas

At NordLayer, we’re building cybersecurity that scales with the business.

A toggle-ready platform that helps modern teams thrive—without the security headaches. Trusted by 11,000+ global companies, NordLayer plugs into any tech stack and protects users across borders.

Your impact? Helping businesses stay protected and moving forward with future-ready network security.

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 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

Salary Range

Gross Salary 5800-7400 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.

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Infrastructure

Vilnius / Kaunas

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