E2E Core Testing Engineer

Our client, a leading global IT service provider,is recruiting for a E2E Core Testing Engineer to join their business in Germany.

Position Title:

E2E Core Testing Engineer

Position Type:

Contract

Start Date:

ASAP

Location:

Dusseldorf, Germany

Contact:

Davor Molnar |  +49 (0) 89 23 88 98 63

Required Skills and Roles & Responsibilities:

• Expert knowledge of packet core theory, including architecture, protocol, and call flow, on both 4G EPC and 5GC

• Expert knowledge of 4G EPC element functionality, including MME, SGW, PGW, HSS, PCRF, OCS

• Strong knowledge of 5GC element functionality, including AMF, SMF, UPF, UDM, UDR, AUSF, PCF, CHF, NRF and NSSF

• Strong knowledge of end-to-end packet core network troubleshooting

• Hands-on experience with VNF and CNF delivery

• Hands-on experience with mobile packet core testing, automatically and manually

• Fluent English is essential

• Expected knowledge of network design, including HLD, LLD and service design

• Degree or equivalent in Engineering, Electronics, Computing, Telecommunications.

• Good working knowledge within the mobile communications industry with knowledge of 2G/4G/5G technologies, their end to end flows and Interfaces. 

• Experience of integration &  acceptance testing of Mobile Core platforms.

• Hands on experience of integrating and end2end  testing of Mobile network services (e.g. Voice, SMS,

• MMS & Data), with good knowledge of Core network elements.

• Knowledge of Core Network – PGW, SGW, MME, SGSN, ePDG etc and associated signaling protocols (mainly SIP, DIAMETER, ISUP, MAP etc.) 

• Knowledge &  Experience of working with Jira, Confluence &  GitLab.

• Experience of working &  delivering within Waterfall and Agile methodology. 

• Strong technical knowledge, capable of taking the lead role in coordinating and progressing technical investigations, using troubleshooting techniques, and in depth investigations to enable effective triage from start to successful conclusion.

• Ability to work under pressure and to assist peers in the same situation whilst ensuring time, cost and quality requirements are maintained.

• Experience with monitoring tools like Wireshark, Netscout, Ericsson CNOM (Core network Operations manager) etc

Nice to have skills:

• Experience in Test Automation, DevOps, CI CD and leveraging these to achieve faster testing turnaround

• times and quality software delivery to the production environment.

• Knowledge &  Experience in Cloud Computing Technologies like Kubernetes, EMS, VNF, NFVI.

• Experience with Automation test framework tools  like  SEGRON, Spirent, Landslide.

• Experience you’d be expected to have

• Must have 8-12 years of experience of having worked with Mobile technologies. 

• Must have experience of translating design and requirements documents in detailed Test specifications documents. 

• Must have experience of having tested Mobile core Platforms and services.

• Must be able to work collaboratively with internal and external customers, stakeholders, partners to

• ensure alignment to technical and business requirements.

• English language fluent required and German language desirable.