
Packet Core Engineer
7 days ago
We are seeking an experienced
Packet Core Engineer
with strong expertise in both
4G Evolved Packet Core (EPC)
and
5G Core (5GC)
technologies. You will play a critical role in the design, integration, and support of core network infrastructure, working in a complex multi-vendor environment to ensure service reliability, scalability, and readiness for next-generation capabilities.
Key Responsibilities
- Design, configure, and optimise
4G EPC elements
: MME, SGW, PGW, PCRF, HSS, ePDG, AAA. - Design, configure, and optimise
5G Core elements
: AMF, SMF, UPF, PCF, UDM, AUSF, NRF, NSSF, NEF. - Support
interoperability and migration
between EPC and 5GC. - Troubleshoot complex signalling and user-plane issues (Diameter, GTP-C/U, SCTP, SIP, HTTP/2).
- Ensure seamless service delivery for
VoLTE, VoNR, and IMS
solutions. - Monitor and optimise network KPIs, ensuring SLA compliance.
- Collaborate with engineering, operations, and vendor teams for upgrades, new feature deployments, and incident resolution.
- Maintain up-to-date documentation (designs, runbooks, change procedures).
Required Skills & Experience
- Bachelor's degree in
Telecommunications, Computer Science, or related field
. - 5+ years
of proven packet core experience across
4G and 5G networks
. - In-depth understanding of:
- 4G EPC architecture
(MME, SGW, PGW, PCRF, HSS). - 5GC service-based architecture
(AMF, SMF, UPF, PCF, UDM, AUSF). - Familiarity with
3GPP standards (LTE & 5G NR)
. - Hands-on experience with
multi-vendor environments
(Ericsson, Nokia, Huawei, Cisco, etc.). - Strong IP networking background (routing, switching, MPLS, QoS, firewalls, DNS/DHCP).
- Experience with
cloud-native core platforms
(VMware, OpenStack, Kubernetes, Docker). - Strong troubleshooting with tools such as
Wireshark, probes, and monitoring systems
.
No visa sponsorships available. Due to the volume of applications, only shortlisted candidates will be contacted.
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