Senior Test Engineer, IMS & AI Communication Products

Mavenir Systems, Inc.; Bengaluru; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Mavenir Systems, Inc. is seeking a Senior Test Engineer in Bengaluru with 5-6 years of telecom and IMS testing experience. You will test IMS-based products and AI-powered communication applications, drive automation in Python, and validate deployments in cloud-native environments.

The role emphasizes end-to-end telecom testing, AI model verification, and performance validation in Kubernetes/OpenShift, with a focus on scalability and interoperability.

Qualifications

• 5-8 years of relevant testing experience in IMS/telecom.
• Experience testing AI-powered communications products.
• Experience with Kubernetes/OpenShift deployments and Python automation.

Responsibilities

• Perform functional, integration, system, and regression testing of IMS-based products.
• Validate end-to-end call flows across IMS network elements.
• Test AI-powered communication products such as Voice Translation, STT/TTS, and Conversational AI.
• Design automation frameworks using Python and test APIs, SIP flows, and media scenarios.
• Validate deployment, upgrades, rollback, and high-availability in Kubernetes/OpenShift.

Skills

IMS Testing

AI Testing

Python

Kubernetes

CI/CD

Tools

Spirent Landslide

Wireshark

HOMER

SIPp

Prometheus/Grafana

Job description

Company Overview

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.

Equal Employment Opportunity

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.

Values & Vision

We embrace disruptive, innovative technology architectures and business models that drive service agility, flexibility, and velocity. With solutions that propel NFV evolution to achieve web-scale economics, Mavenir offers solutions to help CSPs with cost reduction, revenue generation, and revenue protection. We have strong values and are always looking for like-minded individuals to join us in the path to change the shape of our industry. United: One Company; One team; One Unified Vision Passionate: Big thinkers with audacious ideas and solutions Honorable: Integrity, respect and commitment is in our DNA. Fearless: Courageous, bold, determined and challengers of the ‘norm’.

Contact & Safety

PLEASE NOTE: Mavenir will only communicate with you about your application through an “@Mavenir.com” or “[e-mail]” email address. Further, our site (including recruiting information) is only available at the “mavenir.com” and myworkdayjobs.com domains. Criminals may attempt to impersonate Mavenir or recruiting companies online. Please remember that Mavenir will never request that you wire funds or otherwise send money to us or any third party as part of your employment application. Please use caution and care when sending information online, and do not send us any sensitive personal information, such as Social Security numbers, through the Internet. If you have any question about your application or a communication from us, please do not hesitate to reach out to us at [phone] or email [e-mail].