VOIP Developer
- Knowledge on PSTN lines
- Good understanding of TCP/IP protocol stack and practical knowledge of LAN / WAN
- Good knowledge of value-added features such as Voicemail, ACD, IVRS, CTI, etc
- Familiarity with SIP / SDP protocol / Softphones
- Familiarity with OpenSIPS, Kamalio
- Familiarity with Freeswitch
- Familiarity with MySQL
- Knowledge of Linux / server administration
- Familiarity with C language
- Firewall, Security
- Knowledge of WebRTC
- Standard features of Enterprise Communication Servers (PBXs)
- Problem Troubleshooting and debugging techniques (both Hardware and Software)
About Ecosmob Technologies Pvt. Ltd.
Ecosmob Technologies Pvt. Ltd. is the fastest growing IT company specializing in VoIP (Voice over IP and Video over IP). Ecosmob's other range of services include Smart Phone Applications, Search Engine Optimization, Website Development & Design and Web Marketing.
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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.
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.
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,
Hands on exp in design , Build and Trouble Shoot genesys contact Center Solutions
Hands on exp working Audio Codes SBC
Exp working in automation - scripting tools like Python , Jenkins, Ansible ,Perl
Exp in SIP Trunks
Exp working in Cisco CUCM, Unity Connections and Voice Gateway routers
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.