About The Position

The Wireless Core Network Operation Team is responsible for end-to-end administration and operations of HLR/HSS Systems for Cisco Mobility Control Center service. This entails employing the teams demonstrated expertise in wireless core network systems, 3G/4G HLR/HSS subscriber management, and signaling protocols. Your Impact: HLR/HSS System Administration & Operations including daily administration and health checks of HLR/HSS platforms, monitor and respond to system alarms, logs, and KPIs to ensure high availability and reliability, maintain system and service configurations. Incident & On-Call Support including on-call support for system alarms and customer-reported issues, troubleshoot and resolve service-impacting problems, including HLR/HSS call flow and signaling failures, collaborate with vendors and internal teams for escalations and root cause analysis. System Deployment & Upgrades including plan and implement new HLR/HSS system deployments, software upgrades, and patch management, support hardware refreshes and capacity expansions, and validate changes through lab testing and controlled rollout. HLR/HSS Subscriber Management including lead subscriber migration activities across HLR/HSS systems, ensure data consistency, backup, and recovery strategies, and subscriber provisioning processes. Problem solving including perform end-to-end call flow and signaling troubleshooting across 3G/4G networks and 5G in future, analyze system performance, capacity trends, and optimize resource usage, drive continuous improvement of operational efficiency through automations. Leads major business projects which impact a region or entire function. Contributes to the development of annual organizational objectives/priorities. Builds and maintains long-term relationships with key collaborators to ensure products and services reflect the needs and direction of the business. Translates and influences the regional or functional strategic vision into a technical vision with clear engineering priorities, ensuring understanding and alignment across teams. Develops and drives utilization and support for processes for issue identification and sustainable response, proactive tooling, and continuous improvement for production systems. Industry or thought leader on scale, performance, or design patterns. May represent or present team outputs at external events. Communicates product or program priorities, deadlines, and shifts in requirements in the context of engineering priorities and user needs. Negotiates and drives trade-offs in timing, design, and specifications to meet the needs of users and cross-functional partners. Leads, mentors, and influences senior engineers. Improves knowledge sharing processes.

Requirements

  • 15+ years of proven experience in Wireless Core Network architecture, design, and operations, with a consistent track record of leading large-scale deployments and transformation programs.
  • Deep expertise in wireless core network architecture, protocols, and call flows across 3G, 4G, and 5G, with strong understanding of evolution paths and interoperability.
  • Knowledge of 3GPP standards and protocol stacks, including SS7, SIGTRAN (M2PA, M3UA, SCTP), MAP, SMPP, Diameter, IMS/VoLTE/VoNR, SMSC/MMSC, and interworking functions.
  • 10+ years in HPE HLR/HSS system design, architecture, and deployment including end-to-end solution design, high-availability planning, capacity scaling, multi-vendor integration, and migration strategies.
  • Strategic problem-solving expertise for sophisticated, multi-layered HLR/HSS, EPC, IMS, and 5G Core environments.

Nice To Haves

  • Leadership in large deployments: network modernization, software lifecycle management, subscriber migrations, and performance optimization.
  • Experience influencing vendor roadmaps and working with cross-functional teams, including IT, security, cloud, and operations, to align architecture with business goals.
  • Strong leadership and mentoring guiding teams of engineers, review designs, and set architectural standards and guidelines.
  • Ability to operate in high-pressure environments, balancing operational stability with forward-looking architectural innovation.
  • Excellent communication and presentation skills, with ability to articulate complex technical concepts to senior leadership and non-technical stakeholders.

Responsibilities

  • HLR/HSS System Administration & Operations including daily administration and health checks of HLR/HSS platforms, monitor and respond to system alarms, logs, and KPIs to ensure high availability and reliability, maintain system and service configurations.
  • Incident & On-Call Support including on-call support for system alarms and customer-reported issues, troubleshoot and resolve service-impacting problems, including HLR/HSS call flow and signaling failures, collaborate with vendors and internal teams for escalations and root cause analysis.
  • System Deployment & Upgrades including plan and implement new HLR/HSS system deployments, software upgrades, and patch management, support hardware refreshes and capacity expansions, and validate changes through lab testing and controlled rollout.
  • HLR/HSS Subscriber Management including lead subscriber migration activities across HLR/HSS systems, ensure data consistency, backup, and recovery strategies, and subscriber provisioning processes.
  • Problem solving including perform end-to-end call flow and signaling troubleshooting across 3G/4G networks and 5G in future, analyze system performance, capacity trends, and optimize resource usage, drive continuous improvement of operational efficiency through automations.
  • Leads major business projects which impact a region or entire function.
  • Contributes to the development of annual organizational objectives/priorities.
  • Builds and maintains long-term relationships with key collaborators to ensure products and services reflect the needs and direction of the business.
  • Translates and influences the regional or functional strategic vision into a technical vision with clear engineering priorities, ensuring understanding and alignment across teams.
  • Develops and drives utilization and support for processes for issue identification and sustainable response, proactive tooling, and continuous improvement for production systems.
  • Industry or thought leader on scale, performance, or design patterns.
  • May represent or present team outputs at external events.
  • Communicates product or program priorities, deadlines, and shifts in requirements in the context of engineering priorities and user needs.
  • Negotiates and drives trade-offs in timing, design, and specifications to meet the needs of users and cross-functional partners.
  • Leads, mentors, and influences senior engineers.
  • Improves knowledge sharing processes.

Benefits

  • medical, dental and vision insurance
  • a 401(k) plan with a Cisco matching contribution
  • paid parental leave
  • short and long-term disability coverage
  • basic life insurance
  • 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees
  • 1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco
  • 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees (non-exempt)
  • flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) (exempt)
  • 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next
  • Additional paid time away may be requested to deal with critical or emergency issues for family members
  • Optional 10 paid days per full calendar year to volunteer
  • annual bonuses
  • performance-based incentive pay on top of their base salary
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