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# L2 support engineer

- **Company:** ApTask
- **Location:** United States
- **Salary:** $58,240.0 - $62,400.0
- **Contract:** Permanent contract
- **Skills:** 4G (Telecommunication), LTE (Telecommunication), Amazon Web Services, Linux, Internet Protocol Security (IP SEC), Python (Programming Language), Laboratory Information Management Systems, Microsoft Software, Multimedia Messaging Services, OpenStack, System Testing, Wireshark, Scripting, Google Cloud, Kubernetes, Vmware
- **Published:** July 14, 2026
- **Apply:** https://www2.jobdiva.com/portal/?a=4ujdnwqsdebu7m13em5f0pt5dw80o500d7dv9cbq5ebzngb7yk0n43mjtefnbx0d&compid=0/jobs/28848550#/jobs/28848550

## About the Role

* Proven experience with troubleshooting principles, methodologies, and issue resolution techniques in Telecom domain and IMS (4G/5G/LTE) Core networks.
 * Experience in Case Handling, including Emergency Support activities
 * Experience in Conducting root cause analysis and recommend corrective actions to enhance customer experience.
 * Extensive knowledge and expertise in the IMS VoLTE domain including of Nokia IMS Core products including CNCS, Nokia TAS, Nokia Client, MRF, LIMS, SMSC/MMSC, BMC, Presence Server, UMC, SMS Gateway
 * Competences and Expertise in LTE/5G system validation (end-to-end performance, KPI handling, mobile devices).
 * Deep knowledge and understanding of SIP, Diameter and H.248 Protocols including knowledge of TLS, IPSEC, RTP.
 * Solid experience with Protocol Analyzer Tools (Wireshark) and internal message flow protocols.
 * Knowledge and experience with Linux. Strong scripting skills and ability to automate manual tasks which could be easily converted to a script using shell, python.
 * Knowledge of Kubernetes, VMWare, OpenStack, Kubernetes, CBIS, CBAM, and Company

Qualification:

 * Engineering Degree

## Description

Client anticipates and leads change to remain in the leader's quadrant for profitable growth, driven by partnerships with globally leading hyperscales like AWS, Google Cloud, and Microsoft. It has built strong capabilities in new as well as existing technologies such as cloud, data, and digital, pioneering new frontiers.


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