Senior SE

Posted Yesterday
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Bangalore, Bengaluru Urban, Karnataka, IND
In-Office
Senior level
Cloud • Other • Software
The Role
The role involves planning, designing, developing, and testing software systems and applications for cloud-based tools, focusing on IMS based SBC solutions and customer support.
Summary Generated by Built In

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

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.

Skills Required

  • Deep knowledge of SIP (RFC 3261 and extensions)
  • Hands-on experience implementing IMS call flows at the P-CSCF / SBC layer
  • Expert-level C/C++ for high-performance, low-latency components
  • Experience with Diameter protocol development
  • Solid understanding of RTP/RTCP and media transport
  • Experience developing TLS/mTLS session management
  • Experience containerizing SBC components with Docker

Mavenir Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Mavenir and has not been reviewed or approved by Mavenir.

  • Leave & Time Off Breadth PTO, paid holidays and sick time are consistently part of the package, with parental leave also highlighted. Time off is often regarded as a strong aspect of the offering.
  • Healthcare Strength Core medical, dental, and vision coverage—along with disability options—are presented as part of a comprehensive program. Wellness and assistance resources further support employee health needs.
  • Wellbeing & Lifestyle Benefits Employee assistance, wellness initiatives, recognition programs, learning via Mavenir University, and volunteer PTO (MAVcares) expand support beyond core insurance. These extras are positioned as meaningful add-ons to the overall package.

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The Company
HQ: Richardson, TX
5,370 Employees
Year Founded: 2005

What We Do

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 focused on 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.

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