Key Responsibilities
Engineering & Implementation:
• Engineer, implement, and deploy 3GPP core network elements, including 4G LTE EPC (MME, SGW, DRA) and 5G Standalone Core (AMF, UPF, SMF, SEPP).
• Work closely with Solutions Architects to translate high-level designs into detailed engineering plans and configurations.
• Configure core network elements, interfaces, and associated services, including S1-AP, NAS, GTP-C/U, Diameter, HTTP/2, SCTP, PFCP, and 5G service-based interfaces (N1-N15).
• Implement and manage virtualized (VNF) and cloud-native (CNF) network functions across OpenStack, VMware, Kubernetes, and OpenShift environments.
• Develop and implement automation frameworks and scripts using Python, Ansible, Terraform, and Bash to streamline deployment and operational activities.
Integration & Testing:
• Lead integration efforts between core network elements and adjacent domains, including RAN, transport, OSS/BSS, and third-party platforms.
• Design, develop, and execute comprehensive test plans covering Factory Acceptance Testing (FAT), System Integration Testing (SIT), and User Acceptance Testing (UAT).
• Perform functional, performance, regression, interoperability, and stress testing for core network services.
• Identify, analyze, and resolve complex technical issues through collaboration with vendors, engineering teams, and operations organizations.
• Support proof-of-concepts (PoCs), field trials, and new technology evaluations.
Network Operations & Optimization:
• Provide expert-level support for operational incidents, including troubleshooting, root cause analysis, and corrective action planning.
• Monitor and analyze network KPIs to identify bottlenecks and recommend performance optimization strategies.
• Drive continuous improvement initiatives for deployment, integration, automation, and operational processes.
Documentation & Standards:
• Create and maintain engineering documentation, including configuration guides, Method of Procedure (MOP) documents, test plans, test reports, and as-built network diagrams.
• Ensure all deployments adhere to 3GPP standards, security policies, industry best practices, and internal operational guidelines.
Qualifications
Experience:
• 10+ years of hands-on telecommunications experience with a strong focus on engineering, integration, configuration, and testing of 3GPP wireless core networks.
• Proven experience supporting large-scale 4G LTE EPC and/or 5G Standalone Core deployments.
• Extensive experience working with core network solutions from leading vendors such as Ericsson, Nokia, Samsung, or Mavenir.
• Strong expertise in deploying and managing virtualized and cloud-native network functions (VNF/CNF) on Kubernetes, OpenShift, OpenStack, and VMware platforms.
• Hands-on experience with wireless roaming configurations, Diameter signaling, and inter-PLMN connectivity.
• Experience supporting Direct-to-Device (D2D), Non-Terrestrial Networks (NTN), satellite connectivity, or emerging wireless technologies is highly desirable.
Education:
• Bachelor’s or Master’s degree in Electrical Engineering, Computer Science, Telecommunications, or a related technical discipline.
Experience:
• 10+ years of hands-on telecommunications experience with a strong focus on engineering, integration, configuration, and testing of 3GPP wireless core networks.
• Proven experience supporting large-scale 4G LTE EPC and/or 5G Standalone Core deployments.
• Extensive experience working with core network solutions from leading vendors such as Ericsson, Nokia, Samsung, or Mavenir.
• Strong expertise in deploying and managing virtualized and cloud-native network functions (VNF/CNF) on Kubernetes, OpenShift, OpenStack, and VMware platforms.
• Hands-on experience with wireless roaming configurations, Diameter signaling, and inter-PLMN connectivity.
• Experience supporting Direct-to-Device (D2D), Non-Terrestrial Networks (NTN), satellite connectivity, or emerging wireless technologies is highly desirable.
Soft Skills:
• Excellent analytical, troubleshooting, and problem-solving capabilities with exceptional attention to detail.
• Strong verbal and written communication skills with the ability to engage effectively across technical and non-technical teams.
• Ability to thrive in a fast-paced, collaborative environment while managing multiple priorities.
• Self-motivated, proactive, and results-oriented with a strong sense of ownership and accountability.
• Demonstrated ability to work independently and drive initiatives from concept through implementation.
Technology Stack:
• Deep knowledge of 3GPP standards for 4G LTE (Release 8-15) and 5G (Release 15-18), including core network architectures, signaling procedures, and call flows.
• Advanced expertise in core network protocols and interfaces, including S1-AP, NAS, GTP-C/U, Diameter, HTTP/2, SCTP, and PFCP.
• Strong understanding of network security principles, hardening techniques, and best practices for core network infrastructure.
• Proficiency with automation and scripting technologies including Python, Ansible, Terraform, and Bash.
• Strong knowledge of IP networking fundamentals, routing protocols such as BGP and OSPF, and Quality of Service (QoS) mechanisms.
• Experience using network troubleshooting and performance monitoring tools, including Wireshark, protocol analyzers, and monitoring platforms.
• Familiarity with public cloud environments such as AWS, Microsoft Azure, and Google Cloud Platform (Google Cloud Platform), as well as cloud-native networking concepts.
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