Explore Packet Core Support Engineer jobs and launch a vital career at the heart of modern telecommunications. Packet Core Support Engineers are specialized professionals responsible for ensuring the continuous, reliable, and high-performance operation of the mobile core network, the critical infrastructure that enables all cellular data and voice services. These experts serve as the frontline guardians for 4G (EPC), 5G (5GC), and IMS networks, providing technical support, troubleshooting, and maintenance to guarantee seamless connectivity for millions of users. Professionals in this role typically manage a wide array of core network functions. Common responsibilities include performing first-line troubleshooting and incident response to resolve network anomalies, often under stringent service-level agreements. They monitor network performance, analyze key performance indicators (KPIs), and generate detailed incident and operational reports. A significant part of their work involves preparing and reviewing Method of Procedure (MOP) documents for planned network activities such as software upgrades, migrations, and expansions. They actively participate in Operational Readiness Tests (ORT) and Acceptance Test Plans (ATP) to validate new deployments. Furthermore, they raise and manage trouble tickets with vendor care teams for issues requiring deeper escalation, ensuring problems are tracked to resolution. The typical skill set for Packet Core Support Engineer jobs is both deep and broad. A solid foundation in the architecture, protocols, and interfaces of 4G and 5G core networks is essential. Candidates generally require hands-on operation and maintenance (O&M) experience with key network functions. For the data core, this includes nodes like MME, SGW, PGW, AMF, SMF, and UPF. For subscriber management and policy, experience with HSS, PCRF, UDM, PCF, and UDR is common. With the industry's shift to cloud-native technologies, expertise in Kubernetes, containerization, and the lifecycle management of Containerized Network Functions (CNFs) is increasingly a standard requirement. Strong analytical skills for problem-solving, meticulous attention to detail for change management, and effective communication skills for coordinating with vendors and internal teams are vital soft skills. Pursuing Packet Core Support Engineer jobs means entering a dynamic field where you maintain the backbone of global mobile communication. It is a career suited for those with a passion for network technologies, a methodical approach to problem-solving, and the ability to thrive in a mission-critical support environment, ensuring the invisible network that powers our connected world operates flawlessly.