: C++ Developer – VoIP / FreeSWITCH

Experience: Minimum 8 Years of Relevant Experience

Employment Type: C2C (Corp-to-Corp)

Work Mode: Remote

Job Overview seeking a talented and experienced C++ Developer with strong hands-on expertise in server-side application development, VoIP technologies, and real-time communication systems. The selected candidate will join the Voice Application team and contribute to enhancing and extending the company's UCaaS (Unified Communications as a Service) platform.

The role involves developing and maintaining VoIP server functionalities, troubleshooting complex technical issues, and contributing to system design and architecture.

Key Responsibilities

- Develop, maintain, customize, and enhance the VoIP server platform, including calling, IVR, voicemail, and contact center functionalities.
- Work on FreeSWITCH development, customization, and integration for real-time communication solutions.
- Design, develop, and optimize server-side applications using C++17.
- Develop and maintain Linux-based applications and daemon processes.
- Debug and troubleshoot complex issues using GDB, core dumps, tcpdump, and Wireshark.
- Implement multithreaded applications, network programming, and socket-based communication.
- Contribute to system architecture, technical design, performance optimization, and production issue resolution.
- Understand, analyze, and enhance existing codebases while ensuring application reliability and scalability.
- Collaborate with cross-functional teams to deliver robust voice communication solutions.

Required Skills
- FreeSWITCH: Mandatory hands-on experience in development,



customization, and integration.
- C++17: Strong programming knowledge, including STL and Boost libraries.
- Linux Development: Experience developing Linux-based applications and daemons.
- Debugging: Proficiency in GDB, core dump analysis, tcpdump, and Wireshark.
- Multithreading: Strong understanding of multithreaded applications and synchronization primitives.
- Network Programming: Experience with sockets, TCP, and UDP.
- Object-Oriented Programming: Strong understanding of OOP principles and software design.
- Build & Scripting Tools: Working knowledge of Bash and Make.
- Database Knowledge: Basic understanding of SQL and relational databases.
- Ability to read, understand, debug, and modify existing code.

Desired Skills
- Experience with communication protocols: SIP, RTP/RTCP, SRTP/SRTCP, WebRTC, and AMQP.
- Experience with media servers such as FreeSWITCH and Asterisk.
- Knowledge of RTP media handling, call routing, transcoding, conferencing, and real-time media processing.
- Familiarity with Python scripting.
- Experience with libraries such as libcURL, libsrtp, and Google Protocol Buffers (Protobuf).

Ideal Candidate Profile
- Strong problem-solving and analytical skills.
- Ability to work independently in a remote development workplace.
- Experience developing reliable, scalable, and high-performance server applications.
- Strong debugging skills and the ability to troubleshoot complex production issues.

Mandatory Requirement: Candidates must have hands-on FreeSWITCH development and integration experience along with strong C++ and Linux development skills.

📌 C++ Developer – VoIP / FreeSWITCH (8+ yrs) (India)
🏢 MindBrain
📍 India