Sr. Wireless Network Test Engineer

Inabia Software & Consulting Inc.; München; Vor Ort; EUR 70.000 - 90.000; Vollzeit

Zusammenfassung

A telecommunications consulting firm is seeking an experienced Senior Wireless Network Test Engineer in Munich to enhance advanced mobile network testing. The role requires deep knowledge in LTE/5G testing, hands-on experience with telecom tools, and the ability to work onsite. Ideal candidates have 5+ years in network validation and a solid understanding of 3GPP standards. This full-time position offers a unique opportunity to work on cutting-edge technologies in a dynamic environment.

Qualifikationen

• 5+ years’ experience in LTE/5G network testing or mobile device/network validation.
• Hands-on proficiency with telecom test tools.
• Excellent understanding of 3GPP standards for LTE and 5G.

Aufgaben

• Execute full lifecycle testing: attach, registration, bearer setup.
• Debug issues across gNB/eNB, EPC/5GC and IMS components.
• Build/manage test beds including UEs, SIM configurations.
• Use advanced telecom tools for log analysis and diagnosis.
• Create detailed test cases and defect reports.

Kenntnisse

LTE/5G Network Testing

VoLTE/IMS Debugging

Test Tools Proficiency

3GPP Standards Knowledge

Tools

QXDM

Wireshark

Keysight/IXIA

TEMS

Jobbeschreibung

Senior Wireless Network Test Engineer (Munich, Germany)

Location: Munich, Germany (Onsite)
Employment Type: Full-time
Work Authorization: Candidates must have the legal right to work in Germany (EU citizen or valid German/EU work permit)

Position Overview

Inabia is expanding its telecom engineering presence in Europe and is seeking an experienced Senior LTE/5G Network Test Engineer to support advanced mobile network testing for a telecommunications client in Munich. This role requires strong hands‑on experience across 4G/LTE, 5G NR, RAN, Core (EPC/5GC), and IMS/VoLTE, along with expert knowledge of test tools and log analysis.

The ideal candidate brings deep technical understanding of 3GPP standards and can execute end‑to‑end testing in both lab and field environments.

Key Responsibilities

1. LTE / 5G NR Network & Protocol Testing

• Execute full lifecycle testing: attach, registration, bearer setup, PDU sessions, VoLTE/VoNR call flows
• Validate handover (HO), data performance, throughput, latency, jitter, packet loss
• Conduct KPI evaluations and troubleshoot performance degradations

2. RAN, Core & IMS Troubleshooting

• Debug issues across gNB/eNB, EPC/5GC (MME, AMF, SMF, UPF), and IMS components
• Analyze protocol behavior across RRC, NAS, SIP, RTP, Diameter
• Collaborate with vendor engineering teams, device OEMs, and operators

3. Test Environment Ownership

• Build/manage test beds including UEs, SIM configurations, APNs, gNB/eNB parameters
• Integrate and maintain testing frameworks and network simulators (Keysight/IXIA/Spirent)
• Ensure environment stability for regression, performance, and interoperability tests

4. Tools & Log Analysis

Use advanced telecom tools including:

• QXDM / QCAT / QTRACE
• Wireshark / tcpdump
• Keysight/IXIA, Spirent, Anritsu
• TEMS, X-Cal, Rohde & Schwarz tools

Interpret logs to diagnose failures and produce clear RCA documentation.

5. Reporting & Collaboration

• Create detailed test cases, test plans, KPI dashboards, and defect reports
• Work closely with cross‑functional engineering teams in Germany and internationally
• Provide technical input during planning, integration, and software release cycles

Required Qualifications

• 5+ years’ experience in LTE/5G network testing or mobile device/network validation
• Strong experience with VoLTE/IMS, RRC/NAS debugging, and core network interactions
• Hands‑on proficiency with telecom test tools (QXDM, QCAT, Wireshark, TEMS, X‑Cal, Keysight/IXIA)
• Excellent understanding of 3GPP standards for LTE and 5G
• Ability to conduct structured testing in both lab and field environments
• Ability to work onsite in Munich
• Legally authorized to work in Germany (EU citizenship, Blue Card, or valid German work permit)

Preferred Qualifications

• Experience with European mobile operators (e.g., Deutsche Telekom, Vodafone, Telefónica/O2)
• OEM device testing (Samsung, Google, Motorola, Xiaomi, etc.)
• Familiarity with private 5G, CBRS-like shared spectrum, or enterprise 5G deployments
• Experience with KPI automation, scripting, or CI/CD testing frameworks