Asterisk Developer

Job Function Description:

As a Senior Software Engineer, Telephonyin the Product Engineering team at Cyara, you will be responsible for the design, implementation, testing, maintenance, and optimization of the software solutions that make up the Cyara portfolio. You will gather product requirements from Product Management and turn them into working software that satisfies market needs. You will develop, revise, and maintain software artifacts and product engineering processes/methodologies to meet functional, scale, and performance criteria.

You will be responsible for:

• Innovative Software Development

  : Utilizecutting-edge software development tools to drive innovation, efficiency, and quality in the development of applications for a commercially hosted Asterisk platform. The primary focus of this position is to develop our product offering onto a Mobile/GSM platform and tie Speech Recognition engines into our Asterisk based call scripts.

• Problem Solving and UX Delivery

  : Address challenging problems to deliver impactful UX solutions quickly, efficiently, and with high quality.

• Scalable Systems Architecture

  : Contribute to the evolution of systems architecture, ensuring scalability with the growing demands of the business.

• Collaborative Cross-Functional Work

  : Share knowledge and communicate effectively (both verbally and in writing) across the organization to align feature development with overall business objectives.

• Problem Identification and Resolution

  : Analyse, identify, and address problems or bugs to ensure a seamless and error-free user interface.

• Active Participation in Agile Processes

  : Engage actively in Agile team meetings, contributing to iterative development processes and adhering to best practices.
• While this position does not require participation in an official on-call roster, Engineering employees are expected to be available to assist with troubleshooting Severity 1 or Severity 2 production issues as they arise. If contacted, employees should be prepared to respond and provide support, leveraging their domain knowledge and skills to resolve critical incidents.

Let’s talk about your skills/expertise:

• Design, develop, and maintain VoIP solutions using Asterisk.
• Write, test, and deploy RESTful APIs using Python (Flask) to support telephony features.
• Configure dial plans, call routing, IVRs, queues, and SIP trunks in Asterisk.
• Monitor and troubleshoot call quality, performance, and server logs.
• Develop scripts or tools to automate provisioning and reporting.
• Collaborate with front-end developers, DevOps, and QA to deliver full-stack features.
• Ensure system security, scalability, and high availability of VoIP services.
• Required Skills & Qualifications:
• 3+ years of experience with Asterisk (ARI, AGI, AMI).
• Strong proficiency in Python and Flask for developing APIs and writing unit tests
• Solid understanding of VoIP protocols: SIP, RTP, WebRTC.
• Experience working with MySQL or other relational databases.
• Familiarity with Linux server environments.
• Proficiency with tools like Wireshark, TCPDUMP, or SNGREP for SIP troubleshooting.
• Knowledge of JSON, REST, and API security practices.
• Ability to read and write custom DIALPLAN and manage SIP/PJSIP Profiles.
• Version control using Git.

Experience required for this role

• 5-7+ years in a Full Stack Development role
• Exposure in configuring or working in Contact center / Call center would be beneficial
• Good experience with Python scripting with multi-threading / socket and inter process communication
• Very good understanding of databases: extensive knowledge, with performance and optimization experience – MySQL is a must
• In-depth understanding of fundamental web technologies such as HTTP, HTML, CSS, AJAX, REST, and JSON
• Strong knowledge of how SIP and VoIP communication is working
• Should be with Linux and docker container background.
• Experience with SMS and Mobile Gateways.
• Good communication skills, including written and verbal English