ECLARO is hiring: Core Network Engineer 5G in Richardson
ECLARO, Richardson, TX, United States
Job Number: 26-00605
Use your skills where innovative technology solutions begin. This opportunity is for a Core Network Engineer 5G in Richardson, TX, with a leading technology solutions provider.
Position Overview
The Core Network Engineer (5G) works within the Engineering department and is responsible for the design, deployment, operation, and optimization of the client’s 5G core network platforms. The role focuses on hands‑on engineering execution, supporting 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 3GPP 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 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 workstreams 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 3GPP features relevant to the client’s network roadmap.
Measurement:
Performance will be assessed based on 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.
5‑8 years of experience in the telecommunications industry designing, integrating, and managing mobile core network propositions for a Network Equipment Provider or carrier/MNO.
Deep understanding of 5G Core architecture (SA/NSA), 3GPP specs, and control/user‑plane functions.
Experience with open‑source 5G cores like Open5GS, free5GC, or Magma.
Experience with Mongo database for open‑source 5G solutions is a plus.
Programming in at least one of C++, Python, Go, Bash, or equivalent languages.
Familiarity with containerization (Docker, Kubernetes), Git, and CI/CD tools.
Hands‑on experience with Wireshark, PCAP analysis, and log‑level debugging.
Five years of systems integration, management, and/or technical support of 4G/LTE and 5G mobile core network components.
In‑depth knowledge of mobile voice and data core network architecture, including MNO and MVNO/MVNE infrastructure, networking topology, and call/data session handling in VoLTE and VoNR.
Understanding of packet‑switched network elements, interfaces, and messaging for 4G/LTE, including IMS architectures and PCRF.
Knowledge of Voice SIP/RTP, ISUP, and voice convergence technologies, including IMS, VoLTE, and VoWiFi.
Knowledge of RADIUS and Diameter for signaling and charging scenarios.
Experience with capacity management and dimensioning of mobile core elements.
Familiarity with LI (Lawful Intercept), E911, and CALEA requirements.
Familiarity with IMS and VoNR architecture.
Demonstrated experience implementing and operationalizing robust mobile core network solutions aligned with customer, regulatory, and operational requirements.
Entrepreneurial, proactive, accountable self‑starter with a strong performance orientation.
Ability to thrive in a fast‑paced, start‑up environment, managing multiple projects and deadlines while adjusting priorities as needed.
Detail‑oriented, methodical, organized, yet flexible and adaptable.
Calm and methodical under live‑network and incident‑driven conditions.
Effective communicator with strong documentation discipline and ability to collaborate across teams.
Positive and constructive personality with willingness to go beyond the call of duty for successful, on‑time delivery.
Salary
$120,000.00 - $125,000.00 / Year
Equal Opportunity Employer
ECLARO values diversity and does not discriminate based on Race, Color, Religion, Sex, Sexual Orientation, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status, in compliance with all applicable laws.
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Use your skills where innovative technology solutions begin. This opportunity is for a Core Network Engineer 5G in Richardson, TX, with a leading technology solutions provider.
Position Overview
The Core Network Engineer (5G) works within the Engineering department and is responsible for the design, deployment, operation, and optimization of the client’s 5G core network platforms. The role focuses on hands‑on engineering execution, supporting 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 3GPP 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 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 workstreams 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 3GPP features relevant to the client’s network roadmap.
Measurement:
Performance will be assessed based on 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.
5‑8 years of experience in the telecommunications industry designing, integrating, and managing mobile core network propositions for a Network Equipment Provider or carrier/MNO.
Deep understanding of 5G Core architecture (SA/NSA), 3GPP specs, and control/user‑plane functions.
Experience with open‑source 5G cores like Open5GS, free5GC, or Magma.
Experience with Mongo database for open‑source 5G solutions is a plus.
Programming in at least one of C++, Python, Go, Bash, or equivalent languages.
Familiarity with containerization (Docker, Kubernetes), Git, and CI/CD tools.
Hands‑on experience with Wireshark, PCAP analysis, and log‑level debugging.
Five years of systems integration, management, and/or technical support of 4G/LTE and 5G mobile core network components.
In‑depth knowledge of mobile voice and data core network architecture, including MNO and MVNO/MVNE infrastructure, networking topology, and call/data session handling in VoLTE and VoNR.
Understanding of packet‑switched network elements, interfaces, and messaging for 4G/LTE, including IMS architectures and PCRF.
Knowledge of Voice SIP/RTP, ISUP, and voice convergence technologies, including IMS, VoLTE, and VoWiFi.
Knowledge of RADIUS and Diameter for signaling and charging scenarios.
Experience with capacity management and dimensioning of mobile core elements.
Familiarity with LI (Lawful Intercept), E911, and CALEA requirements.
Familiarity with IMS and VoNR architecture.
Demonstrated experience implementing and operationalizing robust mobile core network solutions aligned with customer, regulatory, and operational requirements.
Entrepreneurial, proactive, accountable self‑starter with a strong performance orientation.
Ability to thrive in a fast‑paced, start‑up environment, managing multiple projects and deadlines while adjusting priorities as needed.
Detail‑oriented, methodical, organized, yet flexible and adaptable.
Calm and methodical under live‑network and incident‑driven conditions.
Effective communicator with strong documentation discipline and ability to collaborate across teams.
Positive and constructive personality with willingness to go beyond the call of duty for successful, on‑time delivery.
Salary
$120,000.00 - $125,000.00 / Year
Equal Opportunity Employer
ECLARO values diversity and does not discriminate based on Race, Color, Religion, Sex, Sexual Orientation, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status, in compliance with all applicable laws.
#J-18808-Ljbffr