Back Office PS Core Engineer | Tangent International | Saudi Arabia

Tech Junction Ltd; Saudi Arabia; On-site; SAR 300,000 - 480,000; Full time

Job summary

Tech Junction Ltd in Saudi Arabia is seeking an exceptionally skilled Back Office PS Core Engineer to support Ericsson PS Core, EPC, and 5G Core environments, ensuring high availability and performance in a carrier-grade network.

You will configure, troubleshoot, and upgrade core network elements (MME, EPG, PCC/PCG, SMF, UPF), analyze KPIs, and collaborate with cross-functional teams. On-site role with potential cloud-native CNF exposure using OpenStack and Kubernetes.

Qualifications

• Bachelor's degree in Telecommunications Engineering, Electrical Engineering, Computer Science, or related field.
• 4–8 years of hands-on PS Core/EPC/5G Core engineering.
• Deep technical expertise with Ericsson packet core hardware and software (MME, EPG, PCC/PCG, SMF, UPF).
• Knowledge of 2G/3G/4G/5G call flows, subscriber session mgmt, QoS, and bearer handling.
• Experience troubleshooting core network signaling (GTP, Diameter).
• Strong problem-solving and incident management skills.
• On-site work authorization in Saudi Arabia.

Responsibilities

• Provide expert back-office support, configuration, and maintenance for Ericsson Packet Core, EPC, and 5G Core environments.
• Manage, configure, troubleshoot core network nodes including MME, EPG, PCC/PCG, SAPC, SMF, UPF.
• Analyze and troubleshoot multi-generation call flows and signaling protocols across 2G/3G/4G/5G.
• Monitor sessions, APNs, QoS, and bearer handling.
• Perform software upgrades, patches, and integration testing for new elements.
• Analyze KPIs and optimize packet core throughput and latency.
• Respond to high-priority incidents with RCA and cross-functional mitigation.

Skills

PS Core

EPC

5G Core

Ericsson MME

GTP

Diameter

OpenStack

Kubernetes

CNFs

Education

Bachelor's degree in Telecommunications Engineering

Tools

Ericsson Packet Core

OpenStack

Kubernetes

Job description

Position Summary

We are seeking an exceptionally skilled and experienced Back Office PS Core Engineer to join our mobile telecommunications infrastructure team on a full-time basis in Saudi Arabia [cite: image_3ebb61.jpg]. In this critical packet core network operations role, you will be responsible for supporting, configuring, and troubleshooting complex Ericsson Packet Core, Evolved Packet Core (EPC), and 5G Core environments [cite: image_3ebb61.jpg]. The ideal candidate will bring 4 to 8 years of hands‑on packet switched core experience, deep technical mastery across Ericsson nodes (MME, EPG, PCC/PCG, SAPC, SMF, UPF), and strong analytical capabilities in signaling protocols and KPI performance optimization. If you possess a distinguished background in mobile core network engineering and cloud‑native network functions, we invite you to apply.

Detailed Job Description

As a Back Office PS Core Engineer in Saudi Arabia via Tangent International [cite: image_3ebb61.jpg], you will serve as a principal technical authority responsible for maintaining the high availability, performance, and seamless expansion of carrier‑grade packet core infrastructure [cite: image_3ebb61.jpg]. Your daily responsibilities will encompass managing node configurations, troubleshooting complex subscriber session flows, coordinating software upgrades, and integrating new network nodes into live production environments. You will analyze key performance indicators (KPIs), resolve high‑priority network incidents, and collaborate across engineering teams to ensure optimal throughput and low latency.

Key Responsibilities

• Provide expert back-office support, configuration, and maintenance for Ericsson Packet Core, EPC, and 5G Core network environments [cite: image_3ebb61.jpg].
• Manage, configure, and troubleshoot core network nodes including MME, EPG, PCC/PCG, SAPC, SMF, and UPF.
• Analyze and troubleshoot multi-generational call flows and signaling protocols across 2G, 3G, 4G LTE, and 5G New Radio architectures.
• Monitor subscriber sessions, Access Point Names (APNs), Quality of Service (QoS) policies, and dedicated bearer handling mechanisms.
• Investigate and resolve complex protocol signaling issues involving GTP, Diameter, and related telecommunications interfaces.
• Perform routine and emergency software upgrades, patches, and integration testing for newly deployed network elements [cite: image_3ebb61.jpg].
• Analyze network performance KPIs, traffic trends, and congestion reports to optimize packet core throughput and reliability.
• Respond rapidly to high-priority network incidents, executing root-cause analysis (RCA) and cross-functional mitigation workflows.
• Support cloud-native core initiatives leveraging OpenStack, Kubernetes, and containerized network functions (CNFs).
• Author comprehensive operational runbooks, network configuration templates, and incident investigation reports.

Required Qualifications & Skills

• Bachelor’s degree in Telecommunications Engineering, Electrical Engineering, Computer Science, or a related discipline.
• Minimum of 4 to 8 years of hands‑on professional experience in Packet Switched (PS) Core, EPC, or 5G Core engineering [cite: image_3ebb61.jpg].
• Deep technical expertise working with Ericsson packet core hardware and software platforms across MME, EPG, PCC, SAPC, SMF, and UPF.
• Comprehensive knowledge of 2G/3G/4G/5G call flows, subscriber session management, APNs, QoS, and bearer handling.
• Proven proficiency troubleshooting core network signaling protocols including GTP and Diameter.
• Strong analytical problem‑solving skills with a proven track record of resolving high‑priority network incidents and KPI anomalies.
• Excellent written and verbal communication skills for effective collaboration across multidisciplinary engineering teams.
• Mandatory residency/work authorization: Ability to operate on‑site in Saudi Arabia [cite: image_3ebb61.jpg].

Nice-to-Have Skills

• Professional certifications such as Ericsson Certified Associate/Professional (ECA/ECP) or Cisco CCNA/CCNP.
• Practical experience working with cloud-native 5G Core architectures, OpenStack virtualization, and Kubernetes orchestration.
• Scripting proficiency in Python or Bash for automation and log parsing tasks.
• Immediate availability for professional mobilization in Saudi Arabia.