CS and IMS Core (Voice) -Engineering

Must have or be

 8+ years of experience in Telecom Core Networks.

 Strong knowledge of CS and IMS Core with 3 to 4 years of Solution Integrator experience

 Must have strong knowledge on

o various 3GPP CS and IMS Core nodes (i.e. MSC, MRS/MGW, MTAS, CSCF,)

o Experience in Integration, Configuration Changes, hardware expansion,

Troubleshooting of MSC, MGW, STP, SBC, IMS (P, I, S-CSCF, ATS, MGCF, MRFP, CG,

ENUM)

o Expertise on Protocols (i.e. SIP, H.248, SS7, ISUP, BICC, SIGTRAN, INAP, CAP, TCAP, MAP,

SCCP, Diameter)

o In-depth understanding of Call flow in CS Core, VOLTE/ IMS.

o Competent in GSM / IN call flow.

o Good knowledge / hands-on experience in prepaid charging system SS7 stacks, INAP,

CAMEL, SIGTRAN

 Basic experience with Linux and related Virtualization technologies (any of the following:

VMWare, OpenStack, OpenShift, KVM)

 Ability to effectively translate technical procedures to the customer and identify impacts to the

project activities

 Ability to professionally document method of procedures (MOPS) and low-level designs (LLD)

that are technically accurate and aligned with high-level designs (HLD)

 Ability to review, prepare and execute Test Instructions that is aligned with the Test Object List

(TOL), collect artefacts and analyze results

 Lead Acceptance Testing and coordinate directly with the customer stakeholders involved in

acceptance of the solution

 Must possess exceptional communication skills and proven experience working with diverse

teams of technical architects, analysts, and testing team

 Got sense of urgency and capable to handle tense situation

 Positive, communicative and customer-oriented attitude