Technical Architect

Role & responsibilities

Education, Skills and Experience:

• Location - Ahmedabad

• Extensive Domain Experience: 12+ years of hands-on experience in telephony/VoIP systems or cloud communication platforms. Proven track record in designing large-scale voice infrastructure (carrier or enterprise level) that handles millions of calls or endpoints.

• Deep Protocol & Networking Knowledge: Expert understanding of SIP signaling and media protocols (SDP, RTP/RTCP). Solid fundamentals in networking (UDP/TCP/IP, DNS, routing) and QoS mechanisms for voice (managing latency, jitter, packet loss).

• VoIP Systems Expertise: Strong experience with Session Border Controllers (configuration and optimization) and media servers. Familiarity with VoIP security (TLS encryption, SRTP) and fraud prevention techniques. Hands-on development or configuration experience with open-source telephony stacks like FreeSWITCH, Kamailio/OpenSIPS, RTP proxies, and WebRTC gateways.

• NAT Traversal & WebRTC: In-depth knowledge of NAT traversal techniques (ICE/STUN/TURN) for media and signaling, and experience implementing WebRTC-based communication solutions. Ability to troubleshoot issues across firewalls and ensure reliable call setup in diverse network conditions.

• Programming & Debugging Skills: Proficiency in systems or network programming (e.g. C/C++ for high-performance VoIP modules) and scripting (Python, Bash, or Go) for automation. Strong debugging skills using tools like Wireshark, SIP trace, and other network monitoring utilities.

• Distributed Systems & Cloud: Experience deploying or operating services in cloud environments with knowledge of containerization/Kubernetes is preferred. Understanding of distributed system design and resilience (clustering, georedundancy, fault tolerance) in a telecom context.

• Leadership & Communication: Excellent problem-solving abilities and a leadership mindset in driving complex projects. Strong communication skills to effectively collaborate across teams and to articulate architecture decisions to stakeholders.

• BE/B.Tech in Computer Science