Subscriber & Signalling/SDM Deployment Engineer

Job title: Subscriber & Signalling/SDM Deployment Engineer

About the Role Lead and hands-on deployment of Subscriber and Signalling/SDM nodes on Telco Cloud (4G/5G) environments. You will deploy, configure, upgrade, and integrate S&S/SDM solutions across Bare Metal, VNF, and CNF platforms, troubleshoot issues, and work with Linux and cloud platforms. You may mentor junior team members and contribute to HLD/LLD according to customer designs.

What You'll Do

• Lead and independently handle deployment, configuration, and upgrades of Subscriber and Signalling/SDM nodes on Telco Cloud (4G/5G) environments.
• Perform end-to-end implementation and integration of Subscriber and Signalling solutions across Bare Metal, VNF, and CNF platforms.
• Analyse 4G and 5G call flows and support troubleshooting of signalling and subscriber-related issues.
• Investigate and resolve issues using logs, alarms, and packet analysis tools such as Wireshark.
• Work extensively with Linux and cloud platforms (VMware, OpenStack, OpenShift, Docker, Containers) for deployment and operations.
• Independently understand and contribute to HLD/LLD as per customer network design and deployment requirements.
• Support system validation, upgrades, and acceptance testing activities.
• Provide guidance and technical support to junior team members and help lead small deployment or upgrade activities.
• Communicate effectively with cross-functional teams and customers, including status updates and technical discussions in English and Japanese.

What We're Looking For

• EXP Range: 3–5 years with minimum 2+ years in Subscriber and Signalling/SDM Solution Implementation/Upgrades.
• Strong hands-on experience deploying Subscriber and Signalling/SDM/SDL Nodes on Telco Clouds (4G/5G).
• Deep knowledge of 4G and 5G call flows.
• Thorough understanding of the Cloud environment and how Subscriber & Signalling solution/SDM Nodes can be deployed over cloud.
• Prior experience deploying Subscriber & Signalling nodes as Bare Metal Nodes/VNF’s/CNF’s independently.
• Expertise in installing, upgrading, and integrating different Subscriber and Signalling nodes.
• Sound understanding of troubleshooting tools like Wireshark.
• Ability to independently follow and contribute to HLD/LLD for S&S Nodes as per customer solutions.
• Good working experience in Linux, VMware, Dockers & Containers, OpenStack, OpenShift.
• Working knowledge on nodes like AAA, OneNDS, SDL (Shared Data Layer), HLR/HSS, UDM/AUSF, One-EIR, NPC, CSD, etc.
• Ability to mentor junior team members and lead small deployment activities.
• Mandatory Language Skill: Intermediate Bilingual Japanese and English.
• Strong communication, team handling, analytical, and presentation skills.