13 Ims Architecture Jobs

Why should you choose us Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industrys pursuit of rapid innovation and growth. Based on proven modern infrastructure practices, its open interface platforms make it possible to launch and operate advanced mobile services in a fraction of the time and cost of conventional approaches, with no compromise to network quality or security. Rakuten Symphony has operations in Japan, the United States, Singapore, India, South Korea, Europe, and the Middle East Africa region. For more information, visit: https://symphony.rakuten.com Building on the technology Rakuten used to launch Japans newest mobile network, we are taking our mobile offering global. To support our ambitions to provide an innovative cloud-native telco platform for our customers, Rakuten Symphony is looking to recruit and develop top talent from around the globe. We are looking for individuals to join our team across all functional areas of our business from sales to engineering, support functions to product development. Lets build the future of mobile telecommunications together! About Rakuten Group, Inc. (TSE: 4755) is a global leader in internet services that empower individuals, communities, businesses and society. Founded in Tokyo in 1997 as an online marketplace, Rakuten has expanded to offer services in e-commerce, fintech, digital content and communications to approximately 1.9 billion members around the world. The Rakuten Group has over 30,000 employees, and operations in 30 countries and regions. For more information visit https://global.rakuten.com/corp/. Job Duties : Good Operations and Troubleshooting Experience with CFX , SBC, TAS, SIP, MRF & DNS Server Product. Experience on Mavenir RCS/IMS Core product is preferable . Analysis of clear code through Wireshark. Clear Code analysis and rectification for Volte Node include TAS/SBC/MRF/Net Number/CFX. Suitable for Working in a 24/7, shift environment and to ensure the respective node owners within the SLA. Alarm rectification in day-to-day MS Operation point of View handling for NTAS/SBC/MRF/CFX/Net Number/Cloud Platform. Good exposure in IMS architecture with all the nodes (P-CSCF, I-CSCF S-CSCF, TAS, HSS, MSS) and also having Knowledge on end-to-end call flow including IMS Registration, knowledge on volte call flows. Knowledge of all end-to-end call flow Initial registration/volte call/Conference call/Call forwarding/Call forking/call Hold/CSFB with mandatory header of SIP & IMS. Having knowledge of header used in SIP& IMS and their uses in real NW scenario. Troubleshooting on hardware and software related faults in case Volte Node is concerned. Quick learner and strong desire to master new Technologies in the area of Protocol. A tendency to work sincerely with team spirit and meeting the Deadlines. Partner with Various teams to improve services through collaboration and coordination. Handle End user inquiries through ticketing system and provide proper analysis and solution within SLA. Anchoring Product issues and collaborating with development team to resolve on time. Provide on call support and handling production incident as per incident management process. Roles and responsibilities: Monitor system alarms, alerts, KPIs and utilization. Perform day to day operational activities such as Ticket, CR and incident management. Ensure System health and service reliability. Handling End user issues with Ticketing system and ensure to provide proper analysis and solution within SLA. Coordination with various stakeholders to resolve any end user issues. Work with infra and network teams for allocation of new and existing hardware. Mobile client and system log analysis to identify the root cause of any technical problem in the network. Escalate various issues to appropriate stakeholder with ticketing system. Provide On call support for various products to ensure service availability. Production incident handling with technical ownership. Maintain Technical Documentation as knowledge base. Identifies operational priorities by assessing operational objectives, determining project objectives, such as, efficiency, cost. Preferred Qualification Total Experience: 8-14 years Experience in and/or knowledge of telecom (IMS, RCS , OTT application). Team spirit; strong communication skills to collaborate with various stakeholders. Good time-management skills, self-starter, able to work on their own. Intermediate Japanese Proficiency for both conversation and literacy (Good to have). RAKUTEN SHUGI PRINCIPLES: Our worldwide practices describe specific behaviours that make Rakuten unique and united across the world. We expect Rakuten employees to model these 5 Shugi Principles of Success. Always improve, always advance. Only be satisfied with complete success - Kaizen. Be passionately professional. Take an uncompromising approach to your work and be determined to be the best. Hypothesize - Practice - Validate - Shikumika. Use the Rakuten Cycle to success in unknown territory. Maximize Customer Satisfaction. The greatest satisfaction for workers in a service industry is to see their customers smile. Speed!! Speed!! Speed!! Always be conscious of time. Take charge, set clear goals, and engage your team. Show more Show less

As a candidate for this role, you are expected to possess a deep expertise in 4G core and IMS architecture, with a strong understanding of VoLTE, WIFI, and 3GPP standards compliance. Your knowledge in these areas will be crucial for the successful implementation and maintenance of related systems. In addition to the must-have requirements, any experience or familiarity with 5G core evolution, cloud native deployments, and multi-vendor network integration would be advantageous. Being able to work with these technologies can further enhance the efficiency and effectiveness of our network operations.,

We are searching for a highly skilled Python Automation Engineer with expertise in 5G networks and IMS (IP Multimedia Subsystem) testing to become a part of our dynamic team. The perfect candidate will have practical experience in automating test scripts, telecom protocol testing, and ensuring the quality, performance, and resiliency of 5G/4G network functions. As a Python Automation Engineer, you will have a significant role in the validation of IMS architecture, automation of test cases, and performance verification of network functions. Your responsibilities will include developing and maintaining automated test scripts utilizing Python, TCL, and BDD to validate IMS functionalities and 5G/4G network features. You will design, execute, and enhance test cases for telecom protocols such as SIP, Diameter, MAP, SBI, RTP, and DNS. Additionally, you will be performing integration, performance, and resiliency testing of IMS applications and 3GPP nodes like HLR, HSS, UDM, SMSC, PGW, SMF, and MME. Building and maintaining automation frameworks to streamline test execution and reporting, conducting manual and automated testing for IMS-based services such as VoLTE, VoWiFi, and RCS, simulating network traffic, and testing performance under various conditions using tools like IxLoad, Landslide, and EXFO are crucial aspects of the role. Furthermore, you will be responsible for debugging and troubleshooting issues at both software and network levels using logs, stats, Grafana, and protocol analyzers like Wireshark. Your collaboration with software engineers, network engineers, and DevOps teams to resolve issues and enhance system performance is essential. Integrating automated tests into CI/CD pipelines using Kubernetes, Flux/GitOps, testing system resiliency, geo-redundancy, hardware failure scenarios, and conducting chaos testing will also be part of your duties. To excel in this role, you must possess strong programming skills in Python, along with experience in TCL and BDD. A solid understanding of IMS and its components (HSS, PCRF, CSCF), practical experience with 5G/4G networks and 3GPP nodes, deep knowledge of telecom protocols (SIP, Diameter, MAP, SBI), experience with automation tools and frameworks like Robot Framework, Selenium, or pytest, proficiency with network simulators and analyzers, hands-on experience with Kubernetes, GitOps (Flux), and CI/CD pipelines, strong networking knowledge, experience in performance/load/stress testing and debugging at scale, familiarity with monitoring tools and bug tracking tools, understanding of telecom standards and IMS-based services, as well as excellent communication skills and ability to work in a collaborative environment, are crucial. In return, we offer a competitive salary and benefits package, a culture focused on talent development, opportunities to work with cutting-edge technologies, employee engagement initiatives, annual health check-ups, and insurance coverage for self, spouse, children, and parents. Persistent Ltd. is committed to fostering diversity and inclusion in the workplace, providing hybrid work options and flexible working hours, and creating an inclusive environment where all employees can thrive. Join us at Persistent and unleash your full potential. Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.,

As an FM Specialist you will ensure end-to-end faults, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 6-10 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat OpenShift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Specialist you will ensure end-to-end faults, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 6-10 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat OpenShift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Specialist you will ensure end-to-end faults, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 6-10 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat OpenShift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Specialist you will ensure end-to-end faults, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 6-10 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat OpenShift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Engineer you will ensure end-to-end fault, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 4-5 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat Openshift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Engineer you will ensure end-to-end fault, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 4-5 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat Openshift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Engineer you will ensure end-to-end fault, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 4-5 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat Openshift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Engineer you will ensure end-to-end fault, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 4-5 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat Openshift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Specialist you will ensure end-to-end faults, incidents, and problem management with a focus on meeting SLA/OLA targets. Handle high-level escalations and resolve complex network issues through in-depth technical and procedural expertise. You have: 4-5 years of experience in Open stack Cloud with a degree equivalent to B.E./B.Tech. Hands-on experience with OpenShift Container Platform, including installation, configuration, container platform, and administration. Perform Daily health check of cluster and fix issues based on observations & implement and customize Grafana dashboards if required to effectively monitor the cluster. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes. Manage, Modify SCC based on custom requirement and assign to specific projects and perform certificate management when the existing certificates expired and when needed. Check cluster utilization and share reports to business when needed. Forecast capacity growth requirement and handle capacity increase and end to end architectural knowledge on ACM, ACS, ODF. It would be nice if you also had: Knowledge on RHOCP Architecture and experience on Microservices, Containers & Orchestration (Kubernetes, Dockers). Knowledge with ticketing tool like ITSM, Incident management problem management change management. Fault management/configuration of Redhat OpenShift Platform and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Troubleshoot issues with worker nodes, maintenance, and scale-out tasks. Performing Maintenance activities on cluster line performing patching, configuration changes, installing operators etc. Hand in Hand coordination with project for network integration activities and will handle the trouble ticket/CR within SLA and drive for Automation of tasks. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinating with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System and will track issues related to tools and timely escalation as per pre-defined matrix. Assist application team on resolving issues with pods like crash loopback, image pull back and other errors- Assist in implementing best practices to configure readiness and liveness probes.

As an FM Core Specialist, you will ensure end-to-end fault, incident, and problem management, focusing on resolution within SLA/OLA targets. You will handle high-level escalations for network incidents and provide expert analysis and resolution for complex faults requiring deep technical and procedural knowledge. You have: 11-15 years of experience in Packet Core (4G/5G) with a degree equivalent to B.E./B.Tech. Candidate should have relevant technical experience on Ericsson Packet Core Domain (5G Core Nodes AMF, SMF, UPF, NRF and LTE Nodes - MME, EPG SGW/PGW, PCRF). Must have Hands on Experience on 5G/LTE/VoLTE E2E call flows. Good exposure in IMS architecture with all the nodes. Call flows of 5G / LTE like Registration, Re-Registration, De-Registration, VoLTE Call, Break-in / Break-Out, Hand-over, roaming etc. It would be nice if you also had: Knowledge of Cloud Native Architecture and experience on Microservices, Kubernetes, Dockers, Containers. Knowledge on LTE and 5G EPC / 5G Core Architecture Interface and Protocols. Understanding Service Based Architecture concepts/Network Slicing. Fault management/configuration of 5G SA Core Network and coordinate with Project teams for HLD/LLD/TOL/Design reviews. Hand in Hand coordination with project for network integration activities and handle the Trouble ticket/CR within SLA. Customer Issue handling and ensuring the end customer services are maintained. MOP/WI preparation for the activities and new learnings and coordinate with care team for finding and analyzing the RCAs. Prepare, implement and verify the configuration and integration of a Node / System. Guiding team members to execute complex & critical configuration changes. Tracking of issues related to tools and timely escalation as per pre-defined matrix. Attending governance calls with region and internal teams. Also responsible for analyzing and implementation of feedback.