Resource Request – Job Description
1. Position Details
Role nameSenior Java DeveloperLevel of seniority requiredSeniorNo. of open positions2Offices where role is openIndiaPriority of the positionActiveOpen date of the position28.07.2026Starting date expectedASAPLanguage requiredEnglish (mandatory)Engagement contextMaintenance & Support (TSA) + recent service developmentType of recruitmentReplacement
2. Role Description / Summary
We are looking for a Senior Java Developer 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). The successful candidate will provide Level 2 / Level 3 support under the Technical Support Agreement (TSA), resolve defects, implement change requests and enhancements,



and act as a technical reference within a distributed delivery team across Romania, India and Malaysia.
3. Technical Environment (TIAB Platform)
The candidate will work across the following TIAB components and third-party technologies:
• OpenCloud Rhino – JAIN SLEE telecom application server.
• SAP Convergent Charging (SAP CC) – real-time convergent charging / rating engine
• Dialogic PowerMedia XMS – media server hosting the IVR
• SIP Call Control, IVR and BSS for Account-Based Services Platform (prepaid call control, subscriber-based).
• EAI (enterprise integration layer), CRM, VMS (Voucher Management), Web Self Care.
• BI / Jasper Report Server, NMS Zabbix, Red Hat Enterprise Linux, Oracle.
4. Key Responsibilities
• Develop, maintain and support Java-based telecom applications on the OpenCloud Rhino JAIN SLEE (JSLEE) application server.
• Configure, troubleshoot and enhance the SAP Converge

📌 Senior Java Telco Lead (Karamba)
🏢 R Systems
📍 Karamba