Core Network Sr. Engineer

aramco digital; Dhahran Compound; On-site; SAR 200,000 - 300,000; Full time

Job summary

A leading company in telecommunications is seeking a Core Network Sr. Engineer responsible for designing and maintaining the core network infrastructure. The ideal candidate will have over 2 years of experience in EPC and 5G Core engineering, with expertise in 4G/5G systems, strong troubleshooting skills, and a bachelor's degree in a related field.

Qualifications

• More than 2 years of experience in EPC and/or 5G Core engineering.
• Strong knowledge in relevant protocols and interfaces.

Responsibilities

• Lead configuration and testing of core network elements.
• Analyze signaling flows and troubleshoot core issues.
• Collaborate with cross-domain teams for optimization.

Skills

Knowledge of 4G/5G Core systems

Troubleshooting tools

Performance analytics

Virtualization (NFV, containers)

CI/CD practices

Education

Bachelor’s degree in Telecommunications

Network Engineering

Related field

Tools

Huawei equipment

Ericsson equipment

Nokia equipment

Job description

Overview:

The Core Network Sr. Engineer is responsible for designing, implementing, and maintaining ADC’s core network infrastructure, including EPC, IMS, and 5GC systems. This role plays a critical part in ensuring the performance, scalability, and reliability of core services and supporting the evolution to next-generation network architectures.

Key Responsibilities:

• Lead the configuration, integration, and testing of 4G/5G Core network elements such as MME, SGW, PGW, AMF, SMF, and UPF.
• Support service rollouts by ensuring end-to-end core network readiness and performance validation.
• Analyze signaling flows, troubleshoot core issues, and work closely with vendors to resolve faults.
• Participate in network planning activities including capacity forecasting and software lifecycle management.
• Ensure compliance with 3GPP standards, internal security policies, and regulatory requirements.
• Maintain detailed documentation including configuration records, performance benchmarks, and change logs.
• Collaborate with RAN, Transport, and NOC teams for cross-domain troubleshooting and optimization.
• Evaluate new features and technologies for adoption into ADC’s core network environment.

Qualifications:

Education:

• Bachelor’s degree in Telecommunications, Network Engineering, or a related field.

Experience:

• +2 years of experience in EPC and/or 5G Core engineering and integration.

Skills:

• Strong knowledge of 4G/5G Core systems, interfaces (S1, S6a, N2, N4, N6), and protocols.
• Proficiency in vendor equipment (e.g., Huawei, Ericsson, Nokia), troubleshooting tools, and performance analytics.
• Familiarity with virtualization (NFV, containers) and CI/CD practices for core elements.