PS Core Engineer – Ericsson (EPC, 5G Core & Ericsson ENM) | SIS Global | Riyadh, Saudi Arabia

SIS Global; Riyadh; On-site; SAR 350,000 - 600,000; Full time

Job summary

SIS Global in Riyadh, Saudi Arabia is seeking an experienced PS Core Engineer for a permanent on-site role. You will own Ericsson PS Core nodes (MME/EPG/PCC/PCG/SMF/UPF/NEF) and drive network optimization, outages, and session handling.

The ideal candidate has 4–8 years in PS/EPC/5G Core with strong Ericsson platform experience, VPN, QoS, and scripting skills. On-site, full-time employment with competitive compensation is offered.

Qualifications

• Bachelor’s degree in a technical discipline as listed above.
• 4–8 years of PS Core/EPC/5G Core experience.
• Strong hands-on Ericsson PS Core platforms knowledge (MME/EPG/PCC/PCG/SMF/UPF/NEF).
• Familiarity with 2G/3G/4G/5G call flows and signaling protocols.
• Proficiency with GTP, Diameter, Radius, HTTP/2, SIP, SCTP.
• Experience with virtualization/containerization (VMware/OpenStack/Kubernetes/Docker).
• Ericsson CLI, ENM, ENIQ, and Wireshark skills.
• Legal work authorization and on-site availability in Riyadh.

Responsibilities

• Monitor Ericsson PS Core nodes including MME, EPG, PCC/PCG, SAPC, SMF/UPF, NEF.
• Manage subscriber sessions, bearer handling, IMSI tracing, and configurations.
• Implement APNs, IMSI ranges, QoS profiles, and PCC policies.
• Support virtualized/cloud-native PS Core deployments across datacenters.
• Perform software upgrades, capacity upgrades, and network optimization.
• Analyze KPIs, troubleshoot performance, ensure high service availability.
• Develop automation scripts in Python, Bash, AWK.
• Maintain runbooks, backups, and technical documentation.

Skills

Ericsson PS Core

Core networks

Python scripting

Bash/AWK

Wireshark

Ericsson CLI/ENM/ENIQ

VMware/OpenStack/Kubernetes/Docker

Education

Bachelor’s degree in Telecommunications Engineering, Electronics Engineering, Computer Engineering or related technical discipline

Tools

VMware

OpenStack

Kubernetes

Docker

Job description

Position Summary:

Driving advanced packet core engineering, Ericsson packet core administration, and 5G core network optimization in Riyadh, Saudi Arabia, SIS Global is actively seeking an experienced PS Core Engineer for a permanent full-time professional engagement. In this vital technical operations role, you will take full operational, tactical, and technical ownership of Ericsson PS Core nodes including MME, EPG, PCC/PCG, SAPC, SMF/UPF, and NEF. Bringing 4 to 8 years of progressive professional experience in PS Core, EPC, or 5G Core networks along with strong hands-on expertise in Ericsson platforms (previous Ericsson experience preferred), you will empower an elite telecommunications enterprise to achieve uncompromised core network availability, secure subscriber session handling, and superior wireless service delivery. This prestigious career opportunity offers competitive remuneration, regional enterprise exposure, and professional growth within a leading global telecommunications infrastructure and consultancy enterprise.

Detailed Job Description:

As a PS Core Engineer supporting SIS Global on an on-site professional basis in Riyadh, Saudi Arabia, you will take full operational, tactical, and technical ownership of core network monitoring, complex node troubleshooting, cloud-native node deployment, software upgrades, and cross-functional engineering collaboration. Your day-to-day responsibilities include monitoring and troubleshooting Ericsson PS Core nodes including MME, EPG, PCC/PCG, SAPC, SMF/UPF, and NEF, managing subscriber sessions, bearer handling, IMSI tracing, and network configurations, implementing Access Point Names (APNs), IMSI ranges, Quality of Service (QoS) profiles, and PCC policies, supporting integration and deployment of virtualized and cloud-native PS Core nodes, performing software upgrades, capacity expansions, and network optimization activities, analyzing network KPIs, troubleshooting performance bottlenecks, and ensuring strict service availability, developing automation scripts utilizing Python, Bash, or AWK, collaborating proactively with transmission, RAN, and OSS teams, and interacting directly with recruitment leads like Omnia El-shamy.

Key Responsibilities:

• Monitor, diagnose, and troubleshoot Ericsson PS Core nodes including MME, EPG, PCC/PCG, SAPC, SMF/UPF, and Network Exposure Function (NEF).
• Manage subscriber sessions, bearer handling, IMSI tracing, parameter auditing, and network configurations across mobile core domains.
• Implement and provision APNs, IMSI ranges, QoS profiles, and Policy and Charging Control (PCC) policies.
• Support the integration, commissioning, and deployment of virtualized and cloud-native PS Core nodes across enterprise datacenters.
• Execute software upgrades, firmware patching, capacity expansions, and network optimization initiatives.
• Analyze end-to-end network KPIs, troubleshoot performance degradation issues, and guarantee high service availability.
• Develop automation scripts, parsing utilities, and data collection tools utilizing Python, Bash, and AWK.
• Maintain meticulous network design documentation, node configuration backups, incident logs, and technical operations runbooks.

Required Qualifications & Skills:

• Bachelor’s degree in Telecommunications Engineering, Electronics Engineering, Computer Engineering, or a related technical discipline.
• Minimum of 4 to 8 years of progressive professional hands-on experience in PS Core, EPC, or 5G Core networks.
• Strong, demonstrable operational knowledge and practical proficiency in Ericsson SGSN-MME, EPG, PCC/PCG, SAPC, DRA, SMF/UPF, and NEF platforms.
• Comprehensive working knowledge of 2G, 3G, 4G, and 5G call flows and signaling protocols.
• Deep practical experience with core networking protocols including GTP, Diameter, Radius, HTTP/2, SIP, and SCTP.
• Hands-on familiarity with virtualization and containerization platforms including VMware, OpenStack, Kubernetes, and Docker.
• Proficiency in Ericsson CLI, Ericsson Network Manager (ENM), Ericsson Network IQ Statistics (ENIQ), and Wireshark packet analysis.
• Previous professional working experience with Ericsson systems is strongly preferred.
• Mandatory legal work authorization and physical availability for professional on-site operations in Riyadh, Saudi Arabia.

Nice-to-Have Skills:

• Advanced professional certifications such as Ericsson Certified Associate Packet Core or Cisco Certified Network Professional (CCNP).
• Prior professional working experience supporting Tier-1 mobile network operators (such as STC) or large-scale core transformations in the GCC.
• Hands-on familiarity with cloud-native 5G Core, Cloud Native Infrastructure Solution (CNIS), and dual-mode 5GC architectures.
• Experience utilizing enterprise agile tracking and IT service desk platforms (Jira, ServiceNow, Remedy).
• Active participation in 3GPP standards committees, telecom user groups, or wireless engineering forums.

Application Information:

• Recruiter: SIS Global Recruitment Division
• Contact Name: Omnia El-shamy (Recruitment Lead | Global Talent Acquisition)
• Email: [e-mail]
• Phone:
• Company Website: https://www.sis.net.sa
• Salary/Rate: Market Competitive / Enterprise Telecom Engineering Package
• Work Schedule: On-Site Professional Operations (Riyadh, Saudi Arabia)
• Deadline: Open until filled (Urgent Riyadh PS Core Engineer Opening)
• Notice Period: Immediate to 30 Days Preferred
• Contract Duration: Permanent / Full-Time Employment (Riyadh)