We are looking for a Java Technical lead / Technical Architect to develop, maintain and support the R Systems “Telco-in-a-Box” (TIAB) platform, a carrier-grade convergent charging and service-orchestration solution deployed for a major telecom operator. TIAB combines the OpenCloud Rhino (JAIN SLEE) telecom application server with a SAP Convergent Charging (SAP CC) real-time charging engine and a set of surrounding components (Diameter Signaling Platform, PowerMedia XMS/IVR, EAI, CRM, VMS, BI and monitoring).

Mandatory Technical Skills -

Core

Senior-level Java development (7+ years) – backend, with solid OOP and design fundamentals.

Telecom Domain & Protocols

Convergent / online charging domain: rating, prepaid call control, CDR processing, subscriber account management.

Telecom protocols: SIP, Diameter, SS7 / IN (CAPv2, MAP).

Understanding of IVR / media handling and call-flow / routing configuration.

Platform & Tooling

Oracle and SQL; Linux / Red Hat Enterprise Linux administration and troubleshooting.

Build & version control: Maven, Git; ticketing with JIRA.

Experience operating in production support (L2/L3), MOP execution and maintenance windows.

📌 Jain Slee / Telecom Lead Sip/diameter Noida
🏢 R Systems International
📍 Noida