Engineer - Test Execution Core

Tech Mahindra Network ServicesPhiladelphia, PA
Hybrid

About The Position

Tech Mahindra Network Services has an opening for an Engineer - Test Execution Core in Philadelphia, PA or Redmond/Seattle WA. This role involves scoping, defining, and designing solution offerings, driving end-to-end technical solutions in pre-sales engagements. The engineer will analyze customer technology, define business requirements, and participate in risk analysis. They will work with the technical team on preparing test strategy, test plans, and test cases for LTE-EPC and VoLTE solutions. Responsibilities include developing test scripts using third-party tools, executing test scenarios, and updating test results in a Test Management System. The role also requires defining feature requirements for CORE and RAN orchestration functions to support specific use cases and architecture requirements defined on Service Based Architecture. Additionally, the engineer will engage with multiple vendor personnel regarding new services and features required of 5G NFs on Centralized and Edge Data Centers.

Requirements

  • 5 years of experience
  • Experience with Spirent Landslide, Keysight / Ixia LoadCore or similar tools
  • Experience with Linux, Solaris, Windows
  • Strong knowledge in LTE/UMTS/GPRS with basic IMS knowledge is desired
  • 5 yrs experience working in wireless telecommunications
  • Experience with Telco Core networks, Architecture, Protocols and Interfaces
  • Good understanding of Wireless Operator’s end-end Network
  • Experience with LTE core system interfaces and protocols such as S1-MME, S1-U, S6a, S11, S5/S8, Rx, NAS, S1-AP, RRC, GTPv2c, GTP-U, SGs-AP is desired
  • Must have good working knowledge on VoIP, SIP & IMS
  • Strong Understanding of IMS network architecture and various interfaces like Mw, Mr, Mx, Sh, ISC etc.
  • Must have good hands on experience on various end to end call scenarios, roaming cases and supplementary service features in IMS network
  • Good hands on experience on debugging and troubleshooting of P/I/S-CSCF servers in IMS core network
  • Excellent Understanding of Rel 6/ Rel 7/ Rel 8/Rel 9 3GPP standards
  • Expertise in creating test plans for system level, subsystem level and feature level testing
  • Understanding of Software testing Life cycle
  • Good Knowledge in TCP/UDP, IP protocols and understanding of basic OSI model

Nice To Haves

  • Working Knowledge in any of UMTS/GPRS Protocols such as NBAP, RNSAP, RANAP, BSSAP+ and GTP is preferred

Responsibilities

  • Scope, define and design solution offerings
  • Drive end-to-end technical solutions in pre-sales engagements supporting Customer Unit and Engagement Practices organizations
  • Analyze customer technology, define business requirements and participate in risk analysis
  • Work with technical team on preparing test strategy, test plan and test cases for LTE-EPC and VoLTE solution
  • Develop test scripts using third party tools
  • Execute test scenarios and update test results in Test management system
  • Define feature requirements for CORE and RAN orchestration functions to support Comcast use cases and architecture requirements defined on Service Based Architecture
  • Engage with multiple vendor personnel regarding new services and features required of 5G NFs on a Centralized and Edge Data centers
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