Oxio

4 weeks ago

HLR / HSS / UDM Architect

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 13 hours agoStatus: Live

Job Summary

Lead the design, implementation, and optimization of subscriber data management across 2G–5G networks. Architect and operate HLR/HSS/UDM/UDR platforms within MVNO infrastructure, driving cloud-native deployments, capacity planning, and smooth integration with IMS and roaming. Own incident management, automation of provisioning tasks, and cross-team collaboration to ensure high availability and scalable subscriber data services.

Location: United States

Workplace: Remote

Employment Type: Full time

Job Function: Solutions Engineering & Sales Engineering

Key Responsibilities

•Own the subscriber data management platform across 2G–5G core domains, ensuring high availability and data integrity for subscriber profiles.
•Design and maintain provisioning workflows (IMSI/MSISDN management, service profiles, roaming configurations).
•Implement and verify MAP, Diameter (S6a, S6d, Cx, Sh, Zh) and HTTP/2-based (N8, Nudm) interfaces to core elements like MSC, MME, AMF, SGSN.
•Create dashboards to monitor KPIs and surface anomalies to prevent outages; lead incident management and vendor coordination.
•Perform maintenance, security audits, patching, and emergency response; drive automation of provisioning and audit tasks.

Key Requirements

•10+ years of core telecommunications network experience, with a focus on subscriber data management in mobile networks (HLR/HSS/UDM/UDR).
•Bachelor's degree in Telecommunications, Computer Science, or equivalent; post-graduate studies are a plus.
•Deep knowledge of HLR platforms and Diameter/MAP signaling; hands-on experience with 5G UDM/UDR and cloud-native deployments.
•Experience with IMSI/MSISDN provisioning, roaming configurations, and provisioning workflows.
•Strong troubleshooting and incident management skills, including protocol trace analysis (Wireshark/tcpdump) and SLAs in MVNO environments.

Experience:10+ yearsTelecommunicationsMVNO

Education:Bachelor's

Skills:DiameterMAPS6aS6dCxShZhNudmN8IMSIMSIMSISDNWiresharkTcpdumpLinuxKubernetesOpenShiftAutomationScripting

Languages:English

Tech Stack:HLRHSSUDMUDRDiameterMAPS6aS6dCxShZhHTTP/2WiresharkTcpdumpKubernetesOpenShiftJavaPythonBashLinux

Company Brief

Oxio

OXIO provides a cloud-native Telecom-as-a-Service (TaaS) platform that enables brands and enterprises to embed and operate mobile connectivity, MVNO services, and data-driven telecom products via APIs and a programmable network.

Industry: Telecommunications

Company Size: Medium (51 to 250 employees)

Growth: Growth Stage Startup

Funding: Series B

Headquarters: New York, United States

Founded: 2018

Glassdoor: 3.2

Website LinkedIn Glassdoor

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Oxio

4 weeks ago

HLR / HSS / UDM Architect

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 13 hours agoStatus: Live

Job Summary

Location: United States

Workplace: Remote

Employment Type: Full time

Job Function: Solutions Engineering & Sales Engineering

Key Responsibilities

•Own the subscriber data management platform across 2G–5G core domains, ensuring high availability and data integrity for subscriber profiles.
•Design and maintain provisioning workflows (IMSI/MSISDN management, service profiles, roaming configurations).
•Implement and verify MAP, Diameter (S6a, S6d, Cx, Sh, Zh) and HTTP/2-based (N8, Nudm) interfaces to core elements like MSC, MME, AMF, SGSN.
•Create dashboards to monitor KPIs and surface anomalies to prevent outages; lead incident management and vendor coordination.
•Perform maintenance, security audits, patching, and emergency response; drive automation of provisioning and audit tasks.

Key Requirements

•10+ years of core telecommunications network experience, with a focus on subscriber data management in mobile networks (HLR/HSS/UDM/UDR).
•Bachelor's degree in Telecommunications, Computer Science, or equivalent; post-graduate studies are a plus.
•Deep knowledge of HLR platforms and Diameter/MAP signaling; hands-on experience with 5G UDM/UDR and cloud-native deployments.
•Experience with IMSI/MSISDN provisioning, roaming configurations, and provisioning workflows.
•Strong troubleshooting and incident management skills, including protocol trace analysis (Wireshark/tcpdump) and SLAs in MVNO environments.

Experience:10+ yearsTelecommunicationsMVNO

Education:Bachelor's

Skills:DiameterMAPS6aS6dCxShZhNudmN8IMSIMSIMSISDNWiresharkTcpdumpLinuxKubernetesOpenShiftAutomationScripting

Languages:English

Tech Stack:HLRHSSUDMUDRDiameterMAPS6aS6dCxShZhHTTP/2WiresharkTcpdumpKubernetesOpenShiftJavaPythonBashLinux

Company Brief

Oxio

Industry: Telecommunications

Company Size: Medium (51 to 250 employees)

Growth: Growth Stage Startup

Funding: Series B

Headquarters: New York, United States

Founded: 2018

Glassdoor: 3.2

Website LinkedIn Glassdoor