Lead/Architect ( JSLEE, OpenCloud Rhino)

R Systems; Dadri; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

R Systems is seeking a senior Java backend developer with 7+ years of experience to design and implement robust services. You will work on OpenCloud Rhino and JAIN SLEE applications, with exposure to real-time charging contexts like SAP Convergent Charging.

The role requires strong OOP, design fundamentals, and hands-on Linux, Oracle/SQL, and build tooling such as Maven and Git. You will also engage in production support and integration tasks across telecom platforms.

Qualifications

• 7+ years of Java backend development and solid OOP fundamentals.
• Hands-on with OpenCloud Rhino and JAIN SLEE application development.
• Experience or exposure to SAP Convergent Charging in real-time charging.

Skills

Java backend development

OOP fundamentals

Design fundamentals

OpenCloud Rhino

JAIN SLEE

SAP Convergent Charging

Tools

Oracle

SQL

Linux

Red Hat

Maven

Git

JIRA

Dialogic PowerMedia XMS

WebRTC

IVR platforms

CRM (vTiger)

BI / Jasper

Zabbix

Chef

Ansible

IMS / SIP

Job description

• Senior-level Java development (7+ years) – backend, with solid OOP and design fundamentals.
• Hands-on experience with OpenCloud Rhino and JAIN SLEE application development.
• Good to have exp with SAP Convergent Charging (SAP CC) – configuration, development and/or integration in a real-time charging context.

Telecom Domain & Protocols

• Convergent / online charging domain: rating, prepaid call control, CDR processing, subscriber account management.
• 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.
• Experience with Dialogic PowerMedia XMS, WebRTC or IVR platforms.
• EAI / integration layers, CRM (vTiger / PHP) and BI / Jasper reporting.
• Monitoring with Zabbix; automation/deployment with Chef or Ansible.
• IMS / SIP integration experience (e.g., Huawei IMS) and NGN/NGIN migration.