Senior Manager, Technical Operations
The Coca-Cola Company
PMP
Job Level
Mid-LevelSenior
Tech Stack
AWSAzureCloudDNSDockerFirewallsIoTLinuxMySQLPostgresSwitchingTCP/IPVMware
About the role
- Giesecke+Devrient (G+D) Mobile Security: global security technologies company providing connectivity & IoT, SIM/eSIM/iSIM and lifecycle management solutions.
- NetOps Engineer to deploy and support mobile core and IP network services, ensuring availability and performance across critical infrastructures.
- Operate and maintain IP and mobile packet core networks.
- Manage incidents, service requests, changes and problems.
- Support customer projects, deployments, and network integration.
- Conduct troubleshooting and escalate to R&D when required.
- Maintain accurate documentation and ensure SLA compliance.
- Collaborate with NOC and cross-functional teams globally.
- Support reporting, monitoring, and service improvement efforts.
Requirements
- Understanding of mobile roaming architecture including the role of serving networks, signalling interconnect and GRX / IPX providers.
- Knowledge of 2G / 3G networking, 4G LTE and 5G technologies.
- Experience of working with a range of telecoms technologies.
- Understanding / experience of GRX and IPX networks.
- Technical knowledge of maintaining on-premises equipment and cloud services in areas such as virtual machines, storage, network and security.
- Experience in deploying and maintaining production infrastructure to achieve high levels of uptime and reliability.
- Understanding of Networking Concepts and Network Architectures using Routers, Switches, Firewalls and load balancer.
- Protocols: Diameter, LTE Signalling (S6a, S5, S8), RADIUS, Diameter Gy/Gx, GTP v1/v2, SIGTRAN, SCCP, SIP, TCP/IP, DNS, DHCP.
- Technology area: IP Routing and switching (Layer 2 & 3), BGP routing protocol, IPSEC VPN, Wireshark traces.
- Firewall Platforms, Linux O/S, MySQL and Postgres databases.
- Virtualisation & Containerisation technologies, including Cloud (AWS, Azure), VMware, Docker.
- Experience with DRA/STP, HSS/HLR, P-GW, OCS and PCRF platforms.
- Degree in Computer Science, Telecommunications or related field.
- Experience in telecom network operations (IP, LTE/5G, roaming).
- Hands-on knowledge of IP networking, routing (BGP), VLANs, VPNs.
- Skilled with Linux, MySQL/Postgres, Docker, VMware, AWS/Azure.
- Strong analytical and documentation skills.
