Mobile Core Network Performance Engineer | Trio Services | Riyadh, Saudi Arabia

Trio Services; Riyadh; On-site; SAR 300,000 - 420,000; Full time

Job summary

A leading telecommunications company in Riyadh is seeking a Mobile Core Network Performance Engineer. The successful candidate will have over 5 years of experience and will specialize in Ericsson Mobile Core technologies. Responsibilities include optimizing KPIs, conducting capacity audits, and managing performance reporting dashboards. Candidates with experience in managed services environments are preferred. This role offers a full-time, on-site opportunity within a dynamic, high-traffic telecommunications environment.

Qualifications

• 5+ years in Ericsson Mobile Core Network Performance.
• Deep knowledge of Ericsson CS Core: MSC-S, STP, MGW, IMS, CTC.
• Strong experience with Ericsson PS Core: SGSN-MM, GGSN-PGW, PCRF.

Responsibilities

• Develop, maintain, and optimize KPIs for core networks.
• Perform capacity audits and analyze resource utilization trends.
• Manage and operate Anritsu MasterClaw for KPI dashboards.
• Deliver SLA, governance KPIs, and senior management performance reports.

Skills

Ericsson Mobile Core Network Performance

Ericsson CS Core: MSC-S, STP, MGW, IMS, CTC

Ericsson PS Core: SGSN-MM, GGSN-PGW, PCRF

Signaling expertise: SS7, BSSMAP, CAP, INAP, etc.

BI & performance tools: ENIQ BO, Anritsu MasterClaw

UNIX shell scripting, SQL stored procedures

Multi-vendor environment experience

Education

Bachelor’s degree in Telecommunication Engineering

Tools

Power BI

Anritsu MasterClaw

Anritsu MasterClaw

SQL

Oracle/ MS SQL

Job description

🔎 Job Title: Mobile Core Network Performance Engineer | Trio Services | Riyadh, Saudi Arabia
🏢 Recruiting Company: Trio Services
🌍 Job Location: Riyadh, Saudi Arabia
💼 Job Type: Full-Time, On-site
📧 Application Method: Send CV to [e-mail]
🛡️ Industry: Telecommunications / Core Network Performance / Managed Network Delivery Services

Position Summary

This role is ideal for a highly skilled Mobile Core Network Performance Engineer specializing in CS/IMS/IN/PS domains within an advanced managed services environment. You will monitor, analyze, and optimize mobile core networks, ensuring SLA compliance, capacity readiness, and service stability for high‑traffic operator environments in Saudi Arabia.

Detailed Job Description

As a Mobile Core Network Performance Engineer, you will manage end‑to‑end performance indicators across circuit‑switched, packet‑switched, IMS, and intelligent network platforms. You will analyze international KPIs, troubleshoot degradations, perform capacity audits, and coordinate with multi-disciplinary teams to enhance mobile core reliability and efficiency. This role requires deep expertise in Ericsson Core technologies, signaling protocols, business intelligence tools, and performance reporting. You will prepare governance, SLA, and executive‑level presentations, while supporting automation initiatives and seasonal high‑traffic plans (Ramadan, Hajj, Eid).

Key Responsibilities

• ✓ Develop, maintain, and optimize KPIs for CS/IMS/IN/PS core networks.
• ✓ Perform capacity audits and analyze resource utilization trends.
• ✓ Conduct international KPI analysis (NER, ASR, ACT, MOS, Jitter, Delay, Packet Loss).
• ✓ Evaluate international routes for carrier selection and capacity dimensioning.
• ✓ Perform inbound/outbound roaming analysis using MAP & Diameter signaling.
• ✓ Analyze CS/PS Core performance across MSS, MGw, STP, CTC, GGSN/PGW.
• ✓ Manage and operate Anritsu MasterClaw for KPI dashboards and reporting.
• ✓ Configure performance statistical alarms for CS/PS/IN nodes.
• ✓ Create and maintain Ericsson Business Objects SAP reports.
• ✓ Develop ENIQ/ENM reports and dashboards.
• ✓ Prepare seasonal capacity and contingency plans (Ramadan, Hajj, Eid).
• ✓ Deliver SLA, governance KPIs, and senior management performance reports.
• ✓ Detect early warning signs of network risks and recommend preventive actions.
• ✓ Drive automation initiatives and collaborate with Planning, OSS, Projects, and BO teams.

Required Qualifications & Skills

• ✓ 5+ years in Ericsson Mobile Core Network Performance.
• ✓ Deep knowledge of Ericsson CS Core: MSC‑S, STP, MGW, IMS, CTC.
• ✓ Strong experience with Ericsson PS Core: SGSN‑MME, GGSN‑PGW, PCRF.
• ✓ Expertise in Ericsson IN: CCN, SDP, VS, AIR, IVR.
• ✓ Strong signaling expertise: SS7, BSSMAP, CAP, INAP, DTAP, Sigtran, ISUP, BICC, MAP, SIP, H.248, Diameter.
• ✓ Understanding of core network interfaces: Iu, A, Gx, Gy, S1, S5, S6a, SGS, Gi, Cx, Dx.
• ✓ Experience with BI & performance tools: ENIQ BO, Anritsu MasterClaw/eoLive, Power BI.
• ✓ Proficiency in UNIX shell scripting, SQL stored procedures, Oracle & MS SQL.
• ✓ Strong MS Office skills (Excel formulas, basic macros).
• ✓ Multi-vendor environment experience (Huawei, Nokia advantageous).
• ✓ Bachelor’s degree in Telecommunication Engineering preferred.

Nice‑to‑Have Skills

• ✓ Experience supporting Tier‑1 operators with high‑volume traffic.
• ✓ Knowledge of SLA frameworks and governance reporting structures.
• ✓ Exposure to automation for performance reporting and analysis.
• ✓ Familiarity with VoLTE/VoNR KPIs and IMS performance monitoring.
• ✓ Experience working in Managed Services delivery environments.

Recruitment Pro Tip

Showcase performance dashboards, automation scripts, capacity studies, or case studies where you improved Core KPIs (ASR/NER/Latency/Throughput). Quantifying your impact on SLA compliance or major event readiness (Hajj, Ramadan) will strongly elevate your candidacy.