01Overview
Join our Team
About This Opportunity
We are hiring across multiple levels within our Fixed Line Core and IMS VOBB operations team from skilled L2 Engineers to experienced Senior Engineers and strategic Team Leads. You will be part of a high-performing, multi-vendor network workplace supporting critical voice, signaling, and IMS infrastructure across platforms from Ericsson, Nokia, Oracle, Ribbon, Tekelec, and Genband. Whether you are building your core network career or leading a team through technology transformation, this is a compelling opportunity to grow and make real impact in a technically rich, fast-evolving environment.
You Will Bring
Engineer (Level 2)
24 years of experience in fixed line core or VOBB network operations
Basic understanding of SS7, SIGTRAN, SIP, and Diameter protocols
Foundational knowledge of IMS architecture and VoIP concepts
Familiarity with telecom nodes DSR, STP, SBC, HLR/SDM
Working knowledge of Linux/Unix environments
Understanding of VOBB and fixed line call flows
Strong troubleshooting mindset and analytical skills
Senior Engineer (Level 3)
48 years of experience in fixed line core and IMS/VOBB networks
Strong expertise in IMS Core functions CSCF and TAS
Deep knowledge of SS7, SIGTRAN, Diameter routing, SIP, and RTP
Hands-on experience with Wireshark and protocol-level trace analysis
Understanding of high availability and network redundancy design
Scripting skills in Python or Shell (advantageous)
Detailed end-to-end understanding of VOBB and fixed line call flows
What Will You Do
Engineer (Level 2)
Monitor and maintain network nodes including Ribbon SBC & Analytics, Oracle STP/SBC (MNP & EIR), Nokia MSS & Media Gateway, Ericsson IMS/SDM/5GC, and Genband DMS/CS2K/C20
Perform alarm monitoring, first-level fault analysis, and incident ticket management
Execute routine health checks and preventive maintenance activities
Support incident resolution under guidance of senior engineers
Perform basic configuration changes and operational script execution
Maintain accurate network documentation and update records
Senior Engineer (Level 3)
Lead advanced troubleshooting across Tekelec DSR, Oracle STP/SBC, Ribbon SBC & Analytics, Nokia MSS & Media Gateway, Genband DMS/CS2K/C20/TAS, and Ericsson IMS/vIMS/VoLTE TAS/SDM/csDRA/5GC
Conduct deep protocol analysis across SIP, Diameter, and SS7 layers
Manage and resolve critical incidents (P1/P2) and lead Root Cause Analysis (RCA)
Optimize network performance and contribute to capacity planning
Implement configuration changes, software upgrades, and network migrations
Support interconnect management, call routing, and subscriber service configurations
Collaborate with vendors for bug fixes, patches, and technical escalations
Key Qualifications
Bachelor's or Master's degree in Telecommunications, Computer Science, Electrical Engineering, or a related field
Relevant experience based on level 24 years (L2), 48 years (L3), 815+ years (Team Lead)
Knowledge of core telecom protocols SS7, SIGTRAN, SIP, Diameter, and RTP .
