SI/SSI IMS

Role Overview The Solution Integrator – IMS is responsible for end-to-end integration, configuration, testing, and deployment of IMS solutions within telecom networks. The role ensures seamless interoperability of IMS components across multi-vendor environments while maintaining high service quality and reliability. Key Responsibilities 1. Solution Integration & Deployment Perform end-to-end integration of IMS nodes (e.g., CSCF, SBC, TAS, DNS/ENUM). Execute installation, configuration, and commissioning of IMS solutions. Preparation of delivery specific MOPs and execution of Live node Activities. Ensure alignment with design documents, HLD/LLD, and customer requirements. 2. Testing & Validation Conduct system integration testing (SIT), interoperability testing (IOT), and user acceptance testing (UAT). Validate VoLTE, VoWiFi, and other IMS-based services. Troubleshoot integration issues and ensure defect resolution. 3. Network Configuration & Optimization Configure SIP protocols, routing, and call flows. Optimize IMS network performance and ensure KPI adherence. Support parameter tuning and capacity management. 4. Troubleshooting & Support Analyse logs, traces, and signalling flows (SIP/DIAMETER). Identify root causes and implement corrective actions. Provide L2/L3 support during deployment and post-integration phases. 5. Collaboration & Stakeholder Management Work closely with solution architects, design teams, and customers. Coordinate with cross-functional teams (Cloud, PACO, Transport). Support customer discussions and technical workshops. 6. Documentation & Reporting Prepare integration plans, test reports, and acceptance documents. Maintain knowledge repositories and standard operating procedures. Technical Skills Required Skills & Competencies Strong understanding of IMS architecture and 3GPP standards. Hands-on experience with: SIP, SDP, DIAMETER protocols VoLTE / VoWiFi services Linux/Unix systems Knowledge of telecom nodes such as CSCF, TAS, SBC, DNS. Familiarity with packet core (EPC/5GC) and signalling flows. Tools & Technologies Wireshark / signalling analysers. Scripting (Python/Shell) is an advantage. Cloud/Virtualization (NFV/SDN) exposure preferred. Docker and Kubernetes knowledge with exposure to Cloud Native solutions. Experience & Qualifications Bachelor's degree in Electronics, Telecommunications, or related field. Typically, 3–8 years of experience in telecom core/IMS integration. Experience working in multi-vendor environments is preferred. Behavioural Competencies Strong analytical and problem-solving skills Customer-centric approach Ability to work under pressure and meet tight deadlines Effective communication and teamwork Preferred Certifications IMS / VoLTE certifications Linux or cloud certifications (e.g., OpenStack, Kubernetes) Ericsson internal certifications (if applicable) Key Deliverables Successful IMS integration and service rollout High-quality testing and defect-free deployments Timely issue resolution and customer satisfaction