Network QA Engineer – LTE/5G Modem Project

Що робити

Testbed & Environment Setup: Configure and maintain Linux-based test environments, including static routing, subnetting, core network services (DHCP, NAT), and firewall rules (iptables) to simulate realistic operational and edge-case network conditions for the modem.
Modem Testing & Validation: Design and execute functional, performance, and stability test scenarios for new features on the LTE/5G modem.
Data Path & Traffic Analysis: Generate traffic across IP interfaces, measure throughput, latency, and jitter, and conduct deep packet capture and protocol analysis across multi-layer data paths.
Issue Triage & Debugging: Isolate and debug connectivity failures, packet drops, and performance regressions using packet analysis tools and modem log outputs.
Reporting: Document detailed test results, track defects, and collaborate with engineering teams to isolate root causes.

Core Network Fundamentals: In-depth understanding of the OSI model, including addressing, interfaces, protocols, and Protocol Data Units (PDUs) across layers.
Routing, Switching & Addressing: Proficiency in IP subnetting, hands-on static routing configuration, and solid theoretical knowledge of Layer 2/3/4 concepts (VLANs, MAC / ICMP, ARP / NAT, Firewall).
Traffic & Debugging Tools: Hands-on experience debugging network traffic and measuring bandwidth using Wireshark, tcpdump, iperf, netcat, nmap, and netstat.
Linux Command Line Proficiency: Strong proficiency in working within a Linux command line interface (CLI) environment without a graphical UI.
Intermediate spoken and written English skills