Quality Assurance Engineer
Core
Design and maintain IREG-based test campaigns for roaming partners, network changes, and service launches across Data, Voice, and SMS to ensure service health and geo-redundancy.
Role type
Senior IC Quality Assurance Engineer (Telecom/Network Testing)
Builds
Repeatable test pipelines, smoke and regression suites integrated into CI/CD, and release gates for core network changes.
Domain
Telecom, Mobile Networks, Roaming, eSIM
Required skills
IREG-based test campaign design, LTE/EPC architecture knowledge, Wireshark trace analysis, Python automation, CI/CD integration, KPI definition and correlation, root cause analysis, PCAP/MAP/SS7/Diameter/GTP/DNS trace analysis
Preferred skills
Roaming hub/IPX provider/MVNO experience, SIM box or remote test probe management, 5G roaming and VoLTE roaming knowledge, HSS/HLR/PCRF/OCS function familiarity, GSMA roaming procedures knowledge
Technologies
IREG, Wireshark, Python, CI/CD, LTE/EPC, Diameter, GTP, SS7, MAP, DNS, 5G, VoLTE
Responsibilities
Design and maintain IREG-based test campaigns for roaming partners, network changes, and service launches; Manage the test SIM and eSIM fleet, remote test probes, campaign configuration, scheduling, execution, reporting, and coverage history; Build repeatable test pipelines and integrate smoke and regression suites into CI/CD; Define KPIs, baselines, and thresholds to monitor service health and correlate synthetic results with production data; Design and run tests to verify geo-redundancy, site failover, Diameter and GTP path recovery, and session survival; Analyze PCAP, MAP/SS7, Diameter, GTP, and DNS traces to isolate failures and support root cause analysis
Seniority
Senior, hands-on IC
