Core Network Engineer 5G

Core Network Engineer 5G Job Number: 26-00605 Use your skills where innovative technology solutions begin. ECLARO is looking for a Core Network Engineer 5G for our client in Richardson, TX. ECLARO’s client is a leading technology solutions provider, collaborating with customers to manage their needs and achieve success in their business goals. If you’re up to the challenge, then take a chance at this rewarding opportunity!

Position Overview:

The Core Network Engineer (5G) works within the Engineering department and is responsible for the design, deployment, operation, and optimization of Client’s 5G core network platforms. The role is focused on hands-on engineering execution, supporting both internal network operations and contracted wholesale customer deployments across U.S. and international environments. Innovation is delivered through practical improvements in automation, reliability, observability, and deployment efficiency rather than strategic product ownership.

Responsibilities:
Core Network Design, Deployment and Management:
Design, deploy, operate, and maintain 5G Core Network (5GC) components including AMF, SMF, UPF, NRF, PCF, AUSF, and UDM across both SA and NSA deployments. Deploy, manage and operate 5G core environments in high-availability and geo-redundant configurations, ensuring resilience, scalability, and service continuity. Support inter-PLMN connectivity including roaming, SEPP, and secure interconnect architectures. Support mediation requirements for billing / charging and performance statistics on 5G core platform.

Perform end-to-end call-flow debugging and protocol-level troubleshooting across N1, N2, N3, N4, N6, N10, N11, and N12 interfaces. Implement and support network slicing, policy control, and service function chaining. Ensure compliance with relevant 3

GPP specifications, security requirements, and interface protocols (e.g. HTTP / 2, PFCP, SCTP). Collaborate with RAN and infrastructure teams to support lab test-cells, and limited production radio deployments where required. Integrate, harden, and operate both vendor-supplied and open-source 5G core solutions (e.g. Open5GS, free5GC, Magma) in test, pre-production, and production environments. Contribute fixes, enhancements, and operational tooling where appropriate to support production stability and maintainability.

Use automation to reduce Mean Time To Repair (MTTR), improve deployment repeatability, and increase operational visibility. Develop and maintain custom scripts and tooling (e.g. Python, Bash, Go) to automate deployment, configuration, testing, monitoring, and fault analysis. Pre-Sales:
Provide technical input and peer review to pre-sales and solution architecture activities, validating feasibility, integration complexity, and operational impact. Contribute implementation-level considerations and constraints to High-Level Design (HLD) documentation produced by Solution Architects. Projects:
Execute assigned technical work streams within contracted wholesale customer projects, including deployment, integration, testing, and handover to operations. Work under the direction of the Director of Engineering and in coordination with Solution Architects and Project Manager to deliver agreed technical outcomes. Operations:
Provide Tier-3 technical support to the Network Operations Centre (NOC) for live network incidents affecting wholesale and internal services. Participate in escalation and support on-call rotations as required. Conduct root-cause analysis, document findings, and implement corrective and preventative actions. Skills Development:
Continuously develop technical expertise across core network functions, infrastructure platforms, and emerging 3

GPP features relevant to Client's network roadmap. Measurement:
Performance will be assessed based on a combination of delivery effectiveness, operational stability, incident resolution time, change success rate, and successful deployment of wholesale customer solutions.

Required Qualifications:

Bachelor's or Master's Degree in Computer Science or Engineering. Minimum of 5-8 years working in the telecommunications industry designing, integrating and…