Senior Test Engineer, IMS & AI Communication Products

Mavenir is building the future of networks and pioneering advanced technology, focusing on the vision of a single, software-based automated network that runs on any cloud. As the industry's only end-to-end, cloud-native network software provider, Mavenir is transforming the way the world connects, accelerating software network transformation for 250+ Communications Service Providers in over 120 countries, which serve more than 50% of the world’s subscribers.

Role Summary

We are looking for a highly skilled Senior Test Engineer with 5-6 years of experience in testing IMS-based telecom products and next-generation AI-powered communication applications, including Voice Translation, Speech Processing, Conversational AI, and Real-Time Media platforms Key Responsibilities IMS & Telecom Testing Perform functional, integration, system, performance, and regression testing of IMS-based products.

Validate end-to-end call flows across IMS network elements. Analyze and troubleshoot telecom signaling and media issues. Execute interoperability testing with various IMS components and network elements. Perform capacity, load, scalability, failover, resiliency, and soak testing. AI Product Testing Test AI-powered communication products such as: Voice Translation Speech-to-Text (STT) Text-to-Speech (TTS) Conversational AI / Voice Bots Real-time Media Processing Validate AI inference accuracy, latency, scalability, and multilingual capabilities.

Develop test scenarios for AI model validation and user experience verification. Automation & Cloud-Native Testing Design and implement automation frameworks using Python. Develop test scripts for validating APIs, SIP call flows, and media scenarios. Execute testing in Kubernetes/Open. Shift environments. Validate deployment, upgrade, rollback, and high-availability scenarios.

Protocol & Media Validation Analyze SIP traces using Wireshark, HOMER, or equivalent tools. Validate RTP, SRTP, RTCP media flows. Debug signaling and media issues across distributed systems. Review logs, packet captures, and KPIs to identify product defects Job Requirements Telecom / IMS: IMS Architecture, SIP, SDP, RTP/SRTP, RTCP, Diameter, HTTP/REST APIs, WebRTC IMS Network Elements: SBC, TAS/Application Server, MRF, IMS Core Components Cloud & Containerization: Kubernetes (K8s), Docker, Helm, Microservices, Cloud-Native Deployments, Open.

Shift (Plus) Automation: Python (Mandatory), API Automation, Py. Test/Robot Framework, CI/CD (Jenkins, GitLab, GitHub Actions) Testing & Monitoring Tools: Spirent Landslide, Spirent Abacus, Ixia, Wireshark, HOMER, SIPp, Prometheus/Grafana (Preferred) Experience: 5 - 8 years of relevant experience Candidates available to join immediate and currently working in Bangalore are preferred Accessibility Mavenir is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities.

If you require any assistance, please state in your application or contact your recruiter. Mavenir is an Equal Employment Opportunity (EEO) employer and welcomes qualified applicants from around the world, regardless of their ethnicity, gender, religion, nationality, age, disability, or other legally protected status.