Core Engineer

vor 2 Wochen

Nürnberg, Bayern, Deutschland First Point Group Vollzeit 90.000 € - 120.000 € pro Jahr

Integration & Test Engineer – IMS / Core Network (On-Site Testing)

Location: On-site at customer premises (Nuremburg, Germany)

About the Role

We are seeking a skilled Integration & Test Engineer with hands-on experience in Core and IMS environments. You'll play a key role in end-to-end integration, validation, and testing of IMS and Core Network solutions within a complex multi-vendor ecosystem.

This role is ideal for engineers who are passionate about core network integration, troubleshooting, and testing automation — and who can thrive in a dynamic, customer-facing environment.

Key Responsibilities

  • Perform end-to-end testing and validation of IMS and Core solutions, covering functional, non-functional, load, and security aspects.
  • Collaborate closely with customer and internal technical teams to identify, analyze, and resolve integration issues during initial and ongoing test phases.
  • Provide on-site consultancy and support, guiding customer teams on test setup, execution, and result analysis.
  • Execute manual test cases and trigger TAF automated test suites; collect and analyze logs to pinpoint root causes of issues.
  • Act as a liaison between the customer and internal Core Network teams, tracking and escalating issues as needed to ensure timely resolution.
  • Contribute to test planning, execution, and reporting, ensuring solution quality and compliance with project requirements.

Core Technical Skills & Experience

  • Strong knowledge of Core and IMS architecture, including integration, validation, and troubleshooting.
  • Hands-on experience with key core network nodes, such as:
  • CSCF (P-CSCF, I-CSCF, S-CSCF)
  • TAS / SCC AS
  • HSS / UDM
  • SBG / SBC (Session Border Controller)
  • CFX / CMU / SDM
  • MGCF / BGCF
  • Nokia CloudBand / CBIS / CBAM / NCS
  • Proven track record in SBC and CFX functional testing, integration troubleshooting, and validation.
  • Familiarity with E2E call flows, SIP tracing, and IMS registration analysis.
  • Experience with TAF (Test Automation Framework) or similar automation tools.
  • Good understanding of load and security testing methodologies.

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