Direct message the job poster from NextGen | GTA: A Kelly Telecom Company
Talent Acquisition Specialist - Telecommunications, IT & Emerging Technologies
Work Mode & Travel:
- Fully remote from LATAM
- Must be available during US Business Hours

We are seeking a highly skilled Core Network Engineer with extensive experience in IMS Core Networking, cloud-native solutions, and advanced troubleshooting skills. The role involves collaborating with a major telecom operator’s Engineering and Operations teams to support daily network activities, manage escalations, and contribute to modernization and transition projects.
Key Responsibilities:
- Provide support for network operations, issue resolution, and service optimization.
- Deliver training and knowledge transfer to engineering teams on new platform components.
- Support the transition to a new MVNO arrangement via IMS core expertise.
- Perform log collection, troubleshooting, and root cause analysis for network outages and performance issues.
- Ensure data accuracy and provide insights to meet operational KPIs.





Technical Environment Includes:
- Cloud-Native Communication Suite (CNCS): CSCF, SBC, TAS, MRF
- Messaging Platforms: MMSC, SMSC
- Access and Data Management: AAA, SDL, CSD
- Registers: HSS, HLR
- Others: ENUM platforms, container-based services, signaling directors, operations managers, network analytics tools

Required Skills & Experience:
- 5+ years in Core Network Engineering, focusing on LTE, VoLTE, VoWiFi, and 5G
- Expertise in IMS architecture and experience with Telco/Public Cloud environments (VNF/CNF)
- Deep knowledge of TCP/IP, Routing, Network Security, DNS, Diameter, Radius, LDAP, MAP
- Strong Linux/Unix skills and experience with network analysis and diagnostic tools
- Experience with large-scale network modernization or transformation projects

Additional Requirements:
- Fluent in English, both written and verbal
- Ability to clearly present complex technical topics
- Experience in customer-faci

📌 Core Network Engineer – IMS (México)
🏢 NextGen | GTA: A Kelly Telecom
📍 México