Voip Developer

Requirements:

• Strong C/C++ programming and debugging skills in a Linux environment.
• Experience with Design Patterns, ACE Framework, and Socket Programming.
• Experience in Multi-threaded software development for Multicore Architectures.
• Experience in VOIP application development, preferably on client/server platforms.
• Understanding of system performance and scaling.
• Experience in embedded software development.
• Excellent problem solving/debugging skills design, develop, troubleshoot and debug.
• Software programs for databases, applications, tools, networks etc.

Overview

Phonologies is hiring FreeSWITCH developers to work with us in Pune. You will be involved design, development, customization and maintenance of our home grown FreeSWITCH mods_ . A role that requires individuals to be expert C/C++ programmers and versatile in other skill sets ranging from IP networking, VoIP or working with open-source code. Ideally you should be a mid-level engineer.

We prefer candidates with 2-4 years of Product Development experience. 

Roles And Responsibilities

• Design and develop custom mods using the Freewitch API
• Create tools for test automation
• Create cluster of servers on the fly to run multiple instances of FreeSWITCH

Experience:

• Expert C/C++ coder on Linux
• Proficiency with FreeSWITCH API
• Sound knowledge on Linux Internals, Object Oriented Design & Programming.
• Experience with BitBucket/GithubHUB
• Knowledge of terms like ACD, IVRS, CTI, WebRTC
• Debugging issues by reading packet captures

Candidate Profile:

• Bachelor's degree in Eng. (B. tech or MCA)
• 2-4 years experience in C/C++ on Linux
• Self-starter and good team player
• Great problem solving/ analytical skills
• Excellent Written And Verbal Communication Preferred Skills

About us:

Phonologies is an active developer and contributor to the open source community. We license our IVR product based on Freeswitch. Our products are typically deployed in high density environments, handling 10's of thousands of calls simultaneously. Phonologies is always looking for experienced developers who are inquisitive about "how-things-work".

Job Title:

Telephony Engineer

Job Description:

- Support the operations team with debugging issues related to the telephony platform

- Identify issues with calls using monitoring and analysis tools such as VoIPMOnitor

- Write scripts to automate tasks, monitor the services and functionalities

- Contribute to the improvement of the system by providing ideas

- Help with capacity planning

- Perform the scheduled maintenance activities

- Modify the existing code to accommodate new features

Experience Range:

3- 6 years

Educational Qualifications:

Any graduation,

Job Responsibilities:

  • Knowledge of open source technologies, VoIP, SIP, WebRTC etc.

  • Shell scripting.

  • Experience in Asterisk and Kamailio or OpenSIPS.

  • C/C++ or JS programming with Linux.

  • 5-8 years experience.

  • Good communication skills.

  • Willingness to work in the night, whenever required, for handling support related issues.

Skills Required:

ViOP, OpenSIPS, SIP, Shell Scripting, Asterisk, kamailio, C++, Linux, Development,

What will you do?

• Oversees testing, deployment & maintenance of the Voice infrastructure.
• Performing a variety of tasks associated with user provisioning and call routing within the assigned platform 
• Build loaders for internal systems ensuring tasks are completed accurately and in a timely manner
• Participate in meetings with clients and internal departments to understand the requirements of call routing
• Document and design call flow diagrams to ensure that all call variables have been accounted for in preparing a routing plan
• Support the clients solution by correcting any issues with call routing or provisioning during the initial implementation phase, constantly communicating status of any issues with client
• Complete testing to ensure that call flow is operating properly
• Monitors and ensures compliance to standards, policies, and procedures

What are we looking for?

• 0.6~2 year’s implementation experience in Asterisk PBX, IP Telephony, SIP.
• Able to thrive in a demanding and team-oriented environment
• Basic and strong knowledge of the Linux operating system.
• Knowledge of bash and perl shell scripting is an added advantage.
• RHCE Certification is an added advantage.

ROLES AND RESPONSIBILITIES:
• Articulate complex problems, communicate viable architecture and design approach in a clear and concise manner.
• Thrive in a collaborative team environment and work with ambiguous product requirements.
• Evaluate opensource technologies, development stack and strive for new learning, continued growth by applying industry best practices and processes.
• Provide thought leadership in cloud based VoIP(Voice/WebRTC) services and bring your passion for technology to motivate and inspire on a day to day basis.

SKILLS REQUIRED
• 4+ years experience in building highly available, fault tolerant and scalable real-time communications(Voice and WebRTC) systems in the cloud (AWS preferred).
• Demonstrated history of building complex, high-performance applications in C/C++.
• Proven expertise in network and system performance optimizations(including kernel, containers and virtualization technologies).
• Proficiency in telecom protocols (SIP, SDP and RTP/RTCP) and internet protocols(IPv4/IPv6, TCP and UDP) is desirable.
• Deep understanding of all aspects of WebRTC from audio codecs, to networking (ICE, STUN, TURN) up to server side components needed to deploy the technology at scale (SFU, MCU, Relays) and network security(TLS, SRTP).Strong analytical, problem solving and troubleshooting skills.
• Programming experience with Python, Golang and Lua will be a plus.
• Prior experience working with Asterisk, FreeSWITCH, RTPEngine, Kamailio, or OpenSIPs will be a plus.