Test Engineer — Core Policy & Charging (5G/OCS)

Lansing Community College; Philadelphia (Philadelphia County); On-site; USD 120,000 - 180,000; Full time

Job summary

Tech Mahindra Network Services has an opening for an Engineer - Test Execution Core + Policy Charging in Philadelphia, PA. The role requires expert knowledge of Ericsson charging, OSS/BSS interfaces and 3GPP QoS management to ensure accurate testing and activation flows.

The candidate should be proficient in offline/online charging architectures and Gx/Gy interfaces, with practical experience in DPI and policy control systems across 5G/LTE networks.

Qualifications

• Expertise with Ericsson Charging, Billing and activation systems.
• In-depth knowledge of 3GPP call flows and compliance.
• Strong understanding of 5G/CUPS/LTE Subscriber Policy (HSS/HLR).
• Experience with Offline/Online Charging architectures (PCRF/Gx/OCS).
• Familiarity with DPI, CDRs, Gy/quotas and charging rules.
• Experience with OSS/BSS protocols for billing and provisioning interfaces.

Skills

Ericsson charging

Billing systems

Activation systems

Switch control

3GPP call flows

5G / CUPS / LTE policy

Offline / Online charging

OCS / Gy / Gx

DPI parsing

PCRF / PCF / PCC

Gx charging rules

OSS / BSS protocols

Tools

SOAP

REST

Gz

DNS parsing

Job description

Tech Mahindra Network Services has an opening for an Engineer - Test Execution Core + Policy Charging in Philadelphia, PA. The role requires expert knowledge of Ericsson charging, OSS/BSS interfaces and 3GPP QoS management to ensure accurate testing and activation flows.

The candidate should be proficient in offline/online charging architectures and Gx/Gy interfaces, with practical experience in DPI and policy control systems across 5G/LTE networks.