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:*** 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: .j4id10458404jm j4it1044jm j4iy26jm