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About the Role
We are seeking a Wireless Core Engineer Sr to architect and manage our LTE EPC and 5GC SA core functions for a private network serving critical infrastructure in Texas. This role involves driving live-core operations, including traces, MOPs, configuration, upgrades, KPI/alarm management, root-cause analysis, network expansion, and NOC support.
Responsibilities
- Operate and maintain the Ericsson EPC CUPS stack on CNIS/NFVI: PCC (MME, SGW-C, PGW-C), PCG (SGW-U, PGW-U), CCDM, CCSM, CCPC (PCRF), CCRC, EM, and EDA2.
- Capture and analyze traces (GTP-C/U, PFCP/Sx, Diameter, S1-MME/S1-U, NAS) and close RCA on attach, session, user-plane, provisioning, and MCX/LMR failures.
- Author, validate, and execute Method of Procedures (MOPs) for configuration updates and RAN additions, implementing regression testing to ensure network stability.
- Provision SIMs and subscribers; build and maintain private APNs.
- Monitor KPIs and alarms across the core and support the NOC as the Ericsson core SME.
Requirements
- Nine or more years of experience in network architecture, engineering, cybersecurity, or network systems design, including large-scale enterprise environments, commercial carrier networks, or related field or other relevant experience.
- A degree(s) in Engineering, Computer Science, Information Technology or relevant field may be substituted per LCRA guidelines for certain years of experience.
- Driver's license
Skills
- 4G/5G networks
- LTE EPC and 5GC SA core functions
- Ericsson Dual-Mode 5G Core
- CNIS and NFVI
- High availability
- Cybersecurity
- Isolation
- Traces
- MOPs
- Configuration
- Upgrades
- KPIs and alarms management
- Root-cause analysis (RCA)
- Network expansion
- NOC support
- Ericsson EPC CUPS stack
- PCC (MME, SGW-C, PGW-C)
- PCG (SGW-U, PGW-U)
- CCDM, CCSM, CCPC (PCRF)
- CCRC, EM, and EDA2
- GTP-C/U, PFCP/Sx, Diameter, S1-MME/S1-U, NAS traces
- Attach, session, user-plane, provisioning, and MCX/LMR failures analysis
- Method of Procedures (MOPs) authoring, validation, and execution
- Regression testing
- SIMs and subscribers provisioning
- Private APNs
- Routing
- Firewall
- Network engineering on the core edge
Location
- Texas
Work Type
- Full-time
Experience Level
- Senior
Education Level
- Degree in Engineering, Computer Science, Information Technology or relevant field
Benefits
- Healthcare
- Wellness
- Time off
About the Company
- LCRA provides equal employment opportunities and a work environment free of discrimination and harassment.
- LCRA is committed to working with and providing reasonable accommodations to job applicants with physical or mental disabilities.
Equal Opportunity
- All employment decisions at LCRA are based on business need, job requirement and individual qualifications, without regard to race, color, religion, gender identity, national origin, age, disability, sexual orientation, genetic information, or veteran status in accordance with applicable federal and state legal requirements governing nondiscrimination in employment.
- Applicants with a disability who require a reasonable accommodation for any part of the application or hiring process can contact LCRA Human Resources (512) 578-4004 or email lcra.benefits@lcra.org. Reasonable accommodations will be determined on a case-by-case basis.