Senior Software Engineer - Telephony Infrastructure (3-5 yrs)

Job Description :

Responsibilities :

- Design, develop, and maintain our telephony infrastructure using FreeSWITCH/Asterisk, SIP, WebRTC, and VoIP protocols.

- Build and scale our backend systems using Python (FastAPI, Celery), message queues, and PostgreSQL.

- Develop real-time communication features using WebSockets, UDP, and low-latency networking techniques.

- Ensure the security of our systems by implementing SIP/TLS, SRTP, and adhering to GDPR/HIPAA compliance standards.

- Collaborate with other engineers and stakeholders to define requirements and deliver high-quality products.

- Participate in code reviews and contribute to improving coding standards and best practices.

- Troubleshoot and debug complex issues.

- Research and evaluate new technologies and tools.

Qualifications :

- Extensive experience in telephony development (FreeSWITCH/Asterisk, SIP, WebRTC, VoIP).

- Strong Python development skills, including experience with async frameworks (FastAPI, Celery), message queues, and PostgreSQL optimization.

- Experience building real-time systems using WebSockets, UDP, and low-latency networking.

- Knowledge of security best practices, including SIP/TLS, SRTP, and GDPR/HIPAA compliance.

- Excellent problem-solving and analytical skills.

- Strong communication and collaboration skills.

- Ability to work independently and as part of1 a remote team.

- Experience with specific telephony integrations or APIs.

- Familiarity with other programming languages or frameworks.

- Contributions to open-source projects.

- Experience with Agile development methodologies