Mobile Core Network Engineer

Mobile Core Network Engineer, 100% in Zug

Key responsibilities:

• Support day-to-day operation and maintenance of mobile Core Network elements.
• Assist with monitoring, troubleshooting, and resolution of network and service issues.
• Support HSS/HLR, DRA, STP/SCCP, GTT/GT translations, SMSC, IMS/VoLTE, PGW, PCRF and International Roaming environments.
• Analyze alarms, logs, traces, and KPIs to identify potential network issues.
• Troubleshoot Data, voice/VoLTE, SMS, roaming, signaling issues under the guidance of senior engineers.
• Use packet captures and troubleshooting tools such as Wireshark to investigate signaling and service problems.
• Work with vendors and senior engineers on incident resolution, maintenance, and network changes.
• Maintain operational documentation and troubleshooting procedures.

 Requirements:

• B.S. degree in engineering discipline. Additional coursework in telecommunications related areas desirable.
• Have 3-5 years in Operations & Maintenance experience in a live MNO Core Network focusing on one or more of the following areas: 
  • Hands-on experience in mobile Core Network operations, maintenance, and troubleshooting.
  • Understanding of 3G/4G Core Network architecture and signaling.
  • Familiarity with one or more of HSS/HLR, DRA, STP, GTT/GT Translation, SMSC, IMS/VoLTE, PGW, PCRF or International Roaming.
  • Basic understanding of SS7/MAP, Diameter, SMPP, SIP, and/or GTP.
  • Good analytical and troubleshooting skills. 

 Preferred:

• Experience working in a live MNO or telecommunications environment.
• Hands-on experience with Wireshark, packet analysis, Linux, Python, or Bash.
• Exposure to multi-vendor Core Network environments.
• IMS experience is a plus.

 Personality/Character:

• Highly motivated. Willing to work hard and be rewarded for it.
• Must be organized and won’t stop until the job is “solved forever”.
• Attitude and aptitude are key. These traits trump all others.

For more information or to submit your resume and a cover letter highlighting your experience as a Mobile Core Network Engineer: .