Senior Site Reliability Engineer – Traffic Engineering

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Nord Security

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

🔒 Cybersecurity

☁️ SaaS

🤝 B2B

💰 $100M Private Equity Round - Nord Security on 2023-09

Cybersecurity • SaaS • B2B

Nord Security is a software company that provides digital privacy and cybersecurity products for individuals and businesses. Its product suite includes NordVPN (VPN and integrated antivirus), NordLayer (business VPN and browser for SMBs), NordPass (password manager), NordLocker (end-to-end encrypted cloud storage), Coveron (identity theft protection), and Saily (an eSIM travel app with built-in security features). The company focuses on encryption, online privacy, threat protection, secure file storage/sharing, and identity/credit monitoring delivered primarily through subscription software and partnerships with security vendors and MSP-focused services.

📋 Description

• 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

🎯 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

🏖️ Benefits

• Health insurance • Physical well-being programs • Mental & emotional health support • Company events & team-building • Workation opportunities • Flexible work arrangements