Mavenir

Member of Technical Staff - III, Software

Mavenir  •  Bengaluru, IN (Onsite)  •  1 day ago
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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.

Plans, designs, develops and tests software systems or applications for software enhancements and new products including cloud-based or internet-related tools.

Key Responsibilities

Feature development for IMS based SBC solutions

Managing existing deployments and customer support

Building test framework to help test the new feature/fixes for UT/IT

Job Requirements

Core SIP and IMS Protocol Development

must-have Deep knowledge of SIP (RFC 3261 and extensions: PRACK, UPDATE, REFER, SUBSCRIBE/NOTIFY, PUBLISH) for implementing and debugging call control logic
must-have Hands-on experience implementing IMS call flows (VoLTE, VoWiFi, RCS) at the P-CSCF / SBC layer — registration, session establishment, supplementary services
must-have Strong understanding of SDP offer/answer model, codec negotiation (G.711, G.729, AMR, EVS, Opus), and DTMF relay mechanisms
strong Experience with Diameter protocol development (Rx, Gx, Gy, Cx interfaces) and SCTP transport implementation
strong Familiarity with STIR/SHAKEN identity framework implementation for call authentication and attestation

C/C++ Programming skills
must-have Expert-level C/C++ (C++14/17) for high-performance, low-latency signaling and media processing components
must-have Proficiency in multi-threaded programming, lock-free data structures, and event-driven architectures (e.g., select/epoll, Boost.Asio)
must-have Experience with memory management, profiling, and debugging tools (Valgrind, GDB, AddressSanitizer, perf)

Media and RTP plan development

must-have Solid understanding of RTP/RTCP, jitter buffers, packet loss concealment, and RTCP-based QoS feedback mechanisms
must-have Experience developing or integrating SRTP/DTLS-SRTP encryption for secure media transport in IMS environments
strong Knowledge of media transcoding pipelines, codec adaptation, and SIPREC-based call recording architectures
nice Familiarity with DPDK or kernel-bypass networking techniques for high-throughput media forwarding at scale

Security features development
must-have Experience developing TLS/mTLS session management, certificate lifecycle handling, and cipher suite negotiation in SIP stacks
must-have Ability to design and implement SBC security policies: topology hiding, header manipulation, DoS/DDoS rate limiting and blacklisting engines
Cloud Native and NFV based architecture
strong Experience containerizing SBC components with Docker and deploying on Kubernetes, including HA and geo-redundant topologies
strong Understanding of NFV/MANO frameworks (ETSI NFV) and integration with VNFM/NFVO for lifecycle management of virtualized SBCs
strong Designing REST/gRPC-based northbound APIs for SBC configuration, monitoring, and integration with OSS/BSS systems

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.

Mavenir

About Mavenir

Mavenir is enabling intelligent, automated, programmable networks through the development of telco-first, cloud-native, AI-by-design software solutions for mobile operators. The company’s deep telco domain expertise has been proven through deployments with 300+ operators globally in over 120 countries, which together serve more than 50% of the world’s subscribers. Mavenir combines its deep telco experience with the cloud and IT expertise and data science skillsets essential to solving real customer challenges. Its proven software solutions are AI by design, delivering the AI-native future and operators’ evolution to TechCos.

𝗗𝗶𝘀𝗰𝗹𝗮𝗶𝗺𝗲𝗿:

All recruitment related communication occurs through official HR channels. Mavenir representatives will never request for funds to be wired as part of an employment application. Questions relating to existing job openings or communication from Mavenir, can be sent by email at careers@mavenir.com.

For the latest updates on careers at Mavenir please visit careers@mavenir.com

Industry
IT & Software
Company Size
5,001-10,000 employees
Headquarters
Richardson, Texas
Year Founded
Unknown
Website
mavenir.com
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