
Junior System Administrator (VoIP/Telephony) / Telephony Engineer
Junior System Administrator (VoIP/Telephony) / Telephony Engineer (Telecommunications)
No. of Positions - 1
We are looking for a Junior System Administrator (VoIP) / Telephony Engineer (Telecommunications) to join our Telebu's Communications engineering Team. The Telebuin will develop, implement and support IP Telephony related technologies including and not limited to IP Telephony, IVR platforms, Conferencing solutions, Voice engineering integration, Voice over IP (VoIP), Session Border Controllers (SBC), Session Initiation Protocol (SIP), WebRTC, and Public Switched Telephone Network (PSTN) gateways.
Responsibilities:
- Install & maintain Freeswtich and other SIP servers.
- Administration of SIP and Media Servers, Network/Protocol level debugging and testing, Contact center solutions, Troubleshoots and resolves complex problems.
- Provide IP Telephony and VoIP Subject Matter Expertise for Company and Company's managed service providers, manages 3rd party telecom carriers and providers.
Requirements:
- 3 years of hands-on industry experience in telecommunications
- Strong conceptualize knowledge and experience with telephony protocols like SIP, SDP, RTP, SRTP and audio/video codecs.
- In-depth working experience with Kamailio, Freeswitch, Any of the SIP stack (Sofia, reSIProcate, PJSIP, etc.), and Linux
- Experience in using the VoIP testing tools like Wireshark, VoIPMonitor, SIPp, SIPCapture, Homer etc.
- Strong understanding of implementing various network setups (Private VPNs, multi-zone secure connectivity etc)
Nice to have:
- Experience with virtualization/container related technologies (Xen, VMware vSphere / ESXi, Docker, Kubernetes)
- Hands on writing production quality code using any of the scripting languages like Python, Go, Erlang etc.
- Working knowledge in any NoSQL databases like MongoDB, Redis, Cassandra etc.
- Passionate about knowing everything about VoIP Protocol standards & related RFCs

About Telebu Communications
About
Company social profiles
Similar jobs

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.

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.
Job Overview:
We are seeking a talented Android Framework Engineer to join our development team at Primebook. As an android framework developer, you would be responsible for development, coding, testing and debugging of system features and system apps of PrimeOS, driving technical excellence, and shaping the direction of our products. You will work closely with our CTO to create cutting-edge features that meet user needs and business goals.
Key Responsibilities:
- Understand product requirements and translate them into technical requirements.
- Create secure and high-quality production level code that runs well with different android versions and devices with different screen sizes.
- Development and debugging of android framework components like SystemUI, PhoneWindowManager, Settings database etc.
- Should be capable of developing applications from scratch, debug and fix issues quickly when they are found.
- Collaborate with various teams (Product, Design & Testing) to develop and ship new features.
- Should be able to write scalable and efficient code for handling the load of 100k+ users.
- Ensure the best possible performance, quality, and responsiveness of the application, good knowledge of threads in android is necessary.
- Excellent debugging skills, including identifying memory leaks, performance bottlenecks, and using tools like ADB, proguard, etc
Qualifications:
- A “Bring It On” attitude; bias for action; self-driven, end-to-end ownership; entrepreneurial approach; focus on operational excellence; ability to work with ambiguity.
- B.tech degree in Computer Science or equivalent
- 3-5 years of experience with portfolio of work to show the skill set
- Should have developed at-least 2-3 android apps from scratch
- Experience in compiling AOSP and solving common build errors is a must have
- Should have experience working with SystemUI and android framework_base
- Excellent knowledge of Java, Kotlin, MVVM architecture
- Experience with popular libraries (Jetpack, Retrofit, Glide, OkHttp, Gson etc.)
- Experience with RESTful APIs to connect Android applications to backend services
- Must be good at building logics and working with data structures
Perks and Benefits:
Job type: On-site, 5 days a week
Industry Type: Computer Hardware Manufacturing
Functional Area: Testing And Development
Employment Type: Full Time, Permanent
Salary: Upto 20 Lacs (depends on skill)


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
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)



