Application Engineer

We are looking for a C & VoIP Application Engine Development Engineer with strong hands-on experience in VoIP protocols, real-time communication, and multithreaded system development. The role involves designing, developing, and integrating VoIP application engines for high-performance telecom and mobile solutions across Linux and Windows environments.

Over view:

• Act as a core VoIP application engine developer, contributing to real-time communication product development.
• Own end-to-end design, development, and enhancement of VoIP software components.
• Work on telecom-grade applications supporting audio and video communication.
• Participate in system-level architecture discussions and technical design decisions.
• Support mobile application integration for VoIP solutions across iOS and Android platforms.
• Collaborate with cross-functional teams including system, QA, mobile, and product teams.
• Contribute to improving performance, scalability, and reliability of VoIP systems.
• Actively participate in knowledge sharing, code reviews, and technical discussions within the team.

Responsibilities :

• Design, develop, and maintain C-based, multithreaded VoIP applications for real-time audio/video communication.
• Implement and optimize VoIP protocols including SIP, RTP, RTCP, TCP/UDP, and multimedia codecs (H.264, audio/video codecs).
• Perform system integration of software and hardware to ensure stability, throughput, and real-time performance.
• Handle memory management, thread synchronization, mutexes, and thread prioritization effectively.
• Conduct crash, leak, and performance analysis, debugging complex issues in production and test environments.
• Support client–server interactions, socket programming, and real-time data streaming.
• Develop and execute unit, integration, and system testing, ensuring high-quality deliverables.
• Create and maintain technical documentation, including design specifications and user documentation.

Requirements : 

• At least 3-5 years of strong experience in C programming, multithreading, and data structures
• Hands-on experience with VoIP solutions and protocols: SIP, RTP, RTCP, TCP/UDP

• Knowledge of audio/video codecs including H.264

• Experience in crash analysis, memory leak detection, and thread management.
• Good understanding of telecom protocols and VoIP architecture
• Strong system and networking fundamentals: sockets, threading, mutexes

• Working knowledge of Android and iOS development environments

• Experience with Linux and/or Windows build and compile tools