Staff QA Engineer
Core
Ensuring functionality and performance of edge security products, including DPI engines and secure network traffic inspection.
Role type
Staff SDET/Dev-QA Engineer (Network Security)
Builds
Edge security products, DPI tools, and secure network traffic inspection capabilities for ISPs and smart home platforms.
Domain
Cybersecurity, Network Security, IoT, Smart Home Infrastructure
Deliverable
production ML models | product features
Required skills
Python for test automation, TCP/IP/UDP/DNS/TLS/HTTP/HTTPS/NAT/VPN protocols, packet sniffing (Wireshark), PCAP analysis, firewall behavior, SSL inspection, security vulnerability simulation, debugging complex architectures
Preferred skills
nDPI/Suricata/Zeek familiarity, MITM techniques, threat simulation frameworks, IoT/Wi-Fi edge device testing, cloud-native networking testing
Technologies
nDPI, Suricata, Zeek, Wireshark, OpenWRT, OpenSync, embedded Linux
Responsibilities
Design and develop automated test cases for validating DPI engines and secure network traffic inspection; Test real-world client/router/cloud interactions for deep testing of L2–L7 network behavior; Validate TLS/SSL traffic inspection and network traffic classification techniques; Write tests to ensure accurate handling of malformed packets, evasive traffic, and intrusion detection patterns; Simulate security vulnerabilities (e.g., DNS tunneling, spoofing, port scanning) and evaluate detection effectiveness; Partner with firmware developers to validate and test access control logic
Seniority
Staff, hands-on IC with strategic impact
