IMS Test Engineer gesucht in Düsseldorf

IBU GmbH
Düsseldorf, Germany
1 month ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Düsseldorf, Germany

Tech stack

Automation of Tests
Software Debugging
DNS
JSON
Open Source Technology
TCP/IP
Test Case Design
Strategies of Testing
YAML
Test Scripts
Kubernetes
Spirent Landslide
REST

Job description

  • Creating test scripts using available test tools. This will involve getting familiarized with the test tools and figuring out innovative ways of re-creating practically possible scenarios.
  • Ability to build test setups as per the requirements of the test case and environment.
  • Executing test cases and validating the test status based on the expectations for the test case.
  • Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network
  • Using the test expertise and identifying overall improvements and enhancements

Requirements

  • Minimum 8 to 15 years of experience
  • Thorough knowledge and hands on experience of IMS Core Nodes which should primarily include P-CSCF, S-CSCF, TAS, IPSM-GW ,MRFC, MRFP, BGCF, MGCF, I-SBC, DRA, HSS, SMSC.
  • In-depth knowledge of IMS call flows as per 3GPPP.
  • Good knowledge on the IMS interfaces like Gm, Rx, ISC, Ro, Sh, Mw, Ici, Izi.
  • Good understanding of protocols like SIP, Diameter, REST, TCP/IP, DNS, MSRP.
  • Experience in with SS7 application level protocols (MAP/CAP/INAP) is a plus.
  • Hands on Experience on testing E2E call flows with respect to VoLTE and VoWiFi.
  • Hands-On Experience in Test Strategy Preparation & Driving Testing Projects
  • Expertise in product /capacity testing using simulators/scripting /open source tools
  • Ability to create/build test setups as per the test strategy of the feature.
  • Executing test cases and validating the test status based on the expectations for the test case.
  • Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network.
  • Expertise with core network simulated tools like Spirent Landslide.
  • Good understanding of NFVi Architecture and VNF Life Cycle Management.
  • Experience in K8S is a plus.
  • Working knowledge with Helm, json, yaml etc.
  • L2/L3 network and k8s Networking expertise CNIs like Calico and service mesh is a plus.

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