Packet Core and IMS Expert

Contractor

Job Description

The client is looking to hire a Packet Core and IMS Expert to work a 3 month rolling contract based in Dusseldorf, Germany.

Role Overview:

The client is seeking a highly skilled Packet Core and IMS Expert with extensive experience in network design, configuration, and troubleshooting across 2G, 3G, 4G, and 5G technologies. The ideal candidate will have over 10 years of hands-on experience in telecommunications, demonstrating a strong command of detailed trace analysis, network optimization, and performance reporting. This role requires an analytical thinker who can contribute to network planning and optimization while providing critical insights through reporting and analytics.

Key Responsibilities:

  • Lead network design and optimization efforts for Packet Core (EPC) and IMS systems across multi-generation networks (2G/3G/4G/5G).
  • Perform detailed trace analysis and troubleshooting of complex network issues to ensure high performance and reliability of core network elements.
  • Oversee the integration, configuration, and testing of Packet Core and IMS nodes, ensuring compliance with industry standards and customer requirements.
  • Generate comprehensive reports and analytics on network performance, KPIs, and traffic trends to support decision-making and network evolution strategies.
  • Collaborate with cross-functional teams to drive continuous improvement of network architecture and resolve critical incidents within SLA.
  • Conduct in-depth analysis of signaling flows (SIP, Diameter, GTP-C/U, etc.) and protocols to identify and resolve service-impacting issues.
  • Provide technical guidance and mentorship to junior engineers and contribute to knowledge-sharing initiatives within the organization.
  • Stay up-to-date with the latest developments in mobile technology standards and industry trends to support the introduction of new services and technologies.

Qualifications:

  • Bachelor’s degree in Telecommunications, Electrical Engineering, Computer Science, or related field. Master’s degree is a plus.
  • 10+ years of experience in Packet Core and IMS network domains, with a strong focus on trace analysis and network troubleshooting.
  • Proven expertise in working with multi-vendor Packet Core and IMS systems (e.g., Ericsson, Nokia, Huawei, Cisco).
  • Proficiency in network monitoring and analysis tools (e.g., Wireshark, Tektronix, or equivalent).
  • Solid understanding of 2G/3G/4G/5G architectures, protocols, and interfaces.
  • Strong analytical and problem-solving skills with a focus on data-driven decision-making.
  • Excellent verbal and written communication skills, with the ability to present complex technical information in a clear and concise manner.
  • Certification in related areas (e.g., CCNP, CCIE, or equivalent) is highly desirable.

Preferred Skills:

  • Experience with cloud-native architectures and virtualization technologies (e.g., NFV, SDN).
  • Knowledge of VoLTE, VoWiFi, and IMS services.
  • Familiarity with automation and scripting for network operations (Python, Shell scripting, etc.).

Job Overview

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