Job Description :
Title: Core Engineer (Tier-3) Work Location: Plano, TX Position Summary: The position is to provide Tier-2&3 technical supports for NFV Platform and company's NFV based core systems (e.g. vEPC and v5GC The main areas of responsibility within a job include supporting 24x7 on-call role, performing system test, preparing software packages release documents, assisting customer lab trial support, driving customer acceptance test, and deploying company's VNF/Containers to production environment Common Essential Duties and Responsibilities In this position, either directly or through others, the incumbent will: Job responsibilities and duties include 24x7 Tier-3 on-call technical support for VNF platform and Core systems for existing customer. In addition, the incumbent is expected to perform system level feature integration and verification, inter-operability test with external elements, develop and perform test plans, troubleshoot and analyze problems in customer's lab and production systems, system deployment and commissioning new system. Background/Experience To qualify for this position, the following minimal background and skill levels are required: Must have minimum 5 years of experience in system test and technical customer support, good understanding of LTE EPC, SA 5GC and NFV concept, be able to understand feature requirement/design document and create test procedure. Extensive experience with IPv6, IPv4, switches, routers, and firewalls are required. Having experience with Amazon Elastic Kubernetes Service (EKS) and good communication skill are plus Necessary Skills/Attributes The following skills and abilities must be demonstrated at a proficient level: Strong understanding of OpenStack, DevOps, NFV, CNF, K8s, MANO technology Experience with Load balancing and security functionalities of OpenStack and SDN controller Must have knowledge of OpenStack deployment, VM environment, and platform level troubleshooting skill Experience with DELL and HP servers and be able to work with DELL/HP tech. support team for any server issue Good IP knowledge and routing protocol, IPv6, TCP/IP, UDP, ECMP, OSPF, VLAN, IPSec, NAT, IP forwarding, and TLS Experience of Tomcat and WEB GUI is plus In depth understanding of EPC and SA 5GC architecture CST provides its clients with complete, cost-effective, end-to-end personnel solutions across a range of industrial domains. CST''s mission is to empower businesses around the world to make better, faster operational decisions.