NordVPN serves millions of users through a global edge network. Your number one responsibility is content accessibility - making sure traffic reaches users reliably, quickly, and securely, everywhere in the world.
You'll work at the intersection of networking, load balancing, and traffic shaping. When something is slow, unreachable, or misbehaving at the protocol level, you're the person who finds out why and fixes it.
Main Responsibilities
- Ensure content accessibility across a globally distributed edge infrastructure
- Design, operate, and improve load balancing and traffic shaping systems at scale
- Troubleshoot connection, latency, and accessibility issues end to end
- Own HTTP traffic flow - from client to edge to origin and back
- Investigate and resolve website and service reachability problems
- Work across protocol layers to diagnose issues at the right depth
Core Requirements
- Load balancing and traffic shaping - architecture, algorithms, health checking, failover
- NGINX and/or HAProxy - configuration, tuning, debugging in high-traffic environments
- Networking fundamentals - DNS, routing, firewall, packet capture and analysis
- OSI model fluency - comfortable working across L3–L7, TCP internals, SSL/TLS handshake and termination
- SaltStack
- Linux administration
- Python programming - automation, tooling, scripting
- Troubleshooting network and application-layer issues in production at scale
- Observability knowledge - metrics, logging, and monitoring for traffic systems
- Docker knowledge - full lifecycle and dependency management with advanced networking
Bonus Points For
- Advanced networking - anycast, BGP, traffic engineering at the network layer
- Deep understanding of the HTTP protocol - HTTP/1.1, HTTP/2, HTTP/3, WebSocket, connection lifecycle
- Proxy protocols - PROXY protocol v1/v2, reverse proxy patterns, header propagation
Salary Range
- Gross Salary 23300 - 34000 PLN/Month
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What We Do
Nord Security is one of the world’s leading providers of digital security and privacy solutions for businesses and individuals. We are a home for advanced security solutions that share the Nord brand and values. Today, our products are used by millions of customers worldwide and praised by all the major cybersecurity experts and top media outlets. Since 2012, we have been creating and building award-winning products: NordVPN - the fastest VPN on the planet, built to protect your online traffic and privacy with next-generation encryption. NordLayer - an adaptive network access security solution for modern businesses, helping organizations to fulfill scaling and integration challenges. NordPass - a password manager designed with the user in mind, from simplicity to security. Built using zero-knowledge encryption. NordLocker - a powerful end-to-end encryption tool for safely storing and sharing files. Comes with secure cloud storage. Our community of cybersecurity experts, software developers, engineers, data analysts, and other tech professionals share one common goal – create a safe cyber future for everyone. Explore our open positions here: https://nordsecurity.com/careers Or refer a friend or colleague: https://nordsecurity.com/referrals Learn about our Privacy notice for recruitment candidates here: https://bit.ly/3mJFoAy
