Telecom Tester – RAN Traffic & Protocol Testing – Sweden
Workplace: Stockholm, Sverige
Expires: December 25, 2025
We are looking for skilled Telecom Testers with solid experience in protocol-level testing, RAN traffic validation, and telecom system integration. This role involves hands-on end-to-end RAN testing, 3GPP protocol analysis, and using various telecom testing tools. Candidates with more than 5 years of experience are welcome, with a preference for 8–10+ years of deep, hands-on experience in telecom testing and system validation. Ability to work independently, manage test setups, and analyze complex signaling scenarios is required. Experience with 5G gNodeB setups and telecom infrastructure is highly valued.
Main requirements:
  • Minimum 5 years of experience in telecom system testing, preferably RAN/E2E
  • 8–10+ years hands-on telecom testing experience preferred, including protocol-level debugging
  • Strong understanding of 3GPP protocols and telecom signaling at Layer 1, 2, and 3
  • Familiarity with testing tools like QXDM, Viavi, FsUE, Moshell, among others
  • Knowledge of gNodeB components, CNIS, and RHOSP setup
  • Ability to analyze signaling traces and troubleshoot end-to-end connectivity issues
  • Strong documentation and communication skills
Responsibilities:
  • Perform end-to-end RAN traffic testing, including RAN configuration and UE control
  • Analyze logs and troubleshoot RF and signaling issues across Layers 1, 2, and 3
  • Interpret and validate 3GPP protocols for 4G and 5G
  • Handle test equipment and tools such as Viavi, FsUE, LTE Sim, UCTool, C2RS, QXDM, Moshell, ICA, TGF, Ixia, Spectrum Analyzers, and Signal Generators
  • Understand and test single-server gNodeB deployment along with RHOSP and CNIS integration
  • Collaborate with other teams for ENI design validation and network component testing
Required hard skills:
  • Telecom system testing
  • Protocol-level debugging of 3GPP protocols
  • RAN traffic testing and validation
  • Use of telecom testing tools (QXDM, Viavi, FsUE, Moshell)
  • Knowledge of gNodeB, CNIS, RHOSP setups
  • Signal trace analysis and troubleshooting
Recommended hard skills:
  • Experience with 5G gNodeB setups
  • Familiarity with telecom infrastructure integration
  • Test equipment handling such as Spectrum Analyzers and Signal Generators
Soft skills:
  • Ability to work independently
  • Strong analytical and troubleshooting skills
  • Good documentation abilities
  • Effective communication and teamwork skills
Natural languages:
  • English (Proficient)
Cultural skills:
  • Adaptability to international relocation and visa procedures
  • Collaborative team player
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