Core Resident Engineer - Consultancy

Looking for a role with plenty of growth opportunities?

Don’t miss out on this exciting opportunity and apply today!

Responsibilities:

• Prepare HLD, LLD, datafill and MOP documentation for MSS/MGW platforms and perform integration activities.
• Prepare design documentation and perform integration for SBC platforms.
• Prepare design documentation and perform integration for SS7 and voice firewall solutions.
• Manage technical functions and dependencies across the CS core, SS7, voice firewall and SBC environments.
• Maintain accurate technical documentation in line with customer requirements and network strategy.
• Identify and escalate project-related technical issues.
• Participate in programme and project review meetings.
• Conduct impact analysis to assess technical effort, resource requirements and project constraints.
• Identify and manage additional resource requirements, including licensing and capacity.
• Provide input into capacity management and impact assessment activities.
• Maintain agreed capacity headroom across core network elements and interconnects.
• Perform detailed analysis of network performance reports and lead RCA activities.
• Own and administer the network change management process across the relevant core, SS7, firewall and SBC platforms.
• Assess the technical impact of proposed changes and provide approval recommendations.
• Maintain and update change impact checklists.
• Liaise with Operations and PMO teams regarding change planning and implementation.
• Coordinate engineering resources across projects and planned activities.
• Support major incident resolution, outage investigation and technical escalation.

Requirements:

• Signalling: SS7, SIGTRAN, M3UA, SCTP, ISUP, MAP.
• Control & Media: H.248/MEGACO, BICC, SIP, SIP-I.
• Network Topology: 2G/3G CS Core, A, Iu-CS, Nc, Nb and Mc interfaces, TDM/E1, ATM and IP.
• Voice Processing: AMR, AMR-WB, G.711, DSP allocation.
• Mobile Core Platforms: Strong experience with Nokia DX200/ATCA or equivalent MSS/MGW platforms.
• Diagnostics & Tracing: Wireshark and experience with specialist telecoms trace-analysis tools.
• L2/L3 Support: Major incident handling, outage recovery, dump analysis, emergency patching and RCA.
• Maintenance: Software/SMU upgrades, network health checks, capacity monitoring and maintenance-window execution.
• Modern Interworking: CSFB, VoLTE/IMS integration and 4G/5G voice interworking.
• 3G Sunset: Trunk dismantling, traffic refarming and interconnect migration.
• Customer Operations: Experience working with NOC teams, CAB processes, SLAs and Tier-3 escalations.

Location & Working Pattern:

• Location in Dublin
• Hybrid, with 3 days per week on-site

Salary:

• €300 Per Day - €400 Per Day