Senior Test Engineer, IMS & AI Communication Products

Mavenir; Bengaluru; On-site; INR 1,000,000 - 1,500,000; Full time

Job summary

Mavenir, a leading cloud-native network software provider, seeks a Senior Test Engineer with 5-6 years of experience in IMS-based telecom product testing and AI-powered communications applications. The role covers IMS testing, AI product testing, and automation in a cloud-native, Kubernetes/OpenShift environment.

You will validate SIP/SDP/RTP flows, perform interoperability tests, and ensure end-to-end call reliability while coordinating on Python-based automation and CI/CD pipelines.

Qualifications

• 5-8 years of telecom/IMS testing experience.
• Strong knowledge of SIP/RTP/SRTP, Diameter, HTTP/REST, WebRTC.
• Experience with cloud-native testing in Kubernetes/OpenShift.
• Automation skills in Python; API automation with PyTest/Robot; CI/CD.
• Ability to analyze logs/traces and troubleshoot telecom issues.

Responsibilities

• Perform functional, integration, system, performance and regression testing of IMS-based products.
• Validate end-to-end call flows across IMS elements and AI products.
• Design automation frameworks and scripts in Python for APIs, SIP flows, media.
• Execute testing in Kubernetes/OpenShift environments and validate HA scenarios.
• Analyze traces/logs/KPIs to identify defects and ensure quality.

Skills

IMS testing

SIP/SDP

Python

CI/CD

Kubernetes

API automation

AI testing

Multilingual capabilities

Tools

Spirent Landslide

Wireshark

HOMER

Ixia

SIPp

Prometheus/Grafana

OpenShift

Job description

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/OpenShift 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, OpenShift (Plus)
• Automation: Python (Mandatory), API Automation, PyTest/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.