Software Engineer – Python, VoIP & SD-WAN

4 - 8 years

0 Lacs

Posted:5 days ago| Platform: Linkedin logo

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Work Mode

On-site

Job Type

Full Time

Job Description

Meet the Team

We are the Unified Communications (UC) Software Development team within Cisco Routing Business Unit under the Workplace Technology Group. Our team is responsible for a wide range of voice solutions, including Cisco flagship Voice Gateways (VG) for both Cloud Calling and On-Prem Calling, Digital Signal Processors (DSP) modules, as well as Analog and Digital Voice Modules operating on Catalyst 8200/8300 routing platforms. We also develop VoIP applications such as audio conferencing, transcoding, SWMTP, Fax, and Secure Modem for DoD and DoJ, and Secure Voice (TLS and sRTP).

Our mission is to develop and maintain a competitive and high-quality VG and VoIP products, support the transition from on-prem to cloud calling, and integrate key UC capabilities into Cisco SD-WAN. Our major customers include U.S. government agencies (DoD, U.S. Army, FedRAMP), top financial institutions, healthcare providers, universities, FedEx, Disney, and leading retail stores.

Join our high-energy team to help build the next-generation VG and drive the transition of on-prem voice solutions to the cloud.


Your Impact

You will join a team of talented and experienced software engineers to develop and test voice features on the next-generation (NG) routing platform and NG Voice Gateway. Your primary focus will be on P0 automation using pyATS for the new projects. You will also contribute to enable UC features such as vDSP and secure SIP Line on SD-WAN, and develop new voice applications running on VG in cloud.


Minimum Qualifications

  • BS or MS in Computer Science or Computer Engineering. 4-8 years of Telecom or Networking industry experience. Hands on experience on End-to-End Software development in areas of VoIP or Voice Gateway product and automation.
  • Proficiency in Python and C programming, working knowledge of PyATS, parser libraries, and Linux shell scripting. Develop and maintain automated tests for both new and existing voice features.
  • Hands-on experience with test tools such as Camelot, Callgen, TRex , SIPp and Jenkins
  • Good understanding of VoIP concepts and call control protocols, DSPFarm, traditional digital/analog voice interfaces, and Cisco Call Manager, to automate tests, troubleshoot failures, and maintain/upgrade testbeds. Knowledge of Session Initiation Protocol (SIP).
  • Foundational knowledge of SD-WAN architecture, setup, workflows, and network programmability concepts (using Netconf and YANG) to expand UC features on SD-WAN. Understanding of UX/UI interaction from customer use cases to design component-based solutions


Preferred Qualifications

  • Self-motivated, result driven, and teamwork
  • Understanding of T1/E1, PRI, BRI, E&M
  • Understanding of Digital Signal Processor (DSP) functions, codecs
  • Familiar with Linux server setup and upgrades and Cisco UCS


#WeAreCisco

#WeAreCisco where every individual brings their unique skills and perspectives together to pursue our purpose of powering an inclusive future for all.

Our passion is connection—we celebrate our employees’ diverse set of backgrounds and focus on unlocking potential. Cisconians often experience one company, many careers where learning and development are encouraged and supported at every stage. Our technology, tools, and culture pioneered hybrid work trends, allowing all to not only give their best, but be their best.

We understand our outstanding opportunity to bring communities together and at the heart of that is our people. One-third of Cisconians collaborate in our 30 employee resource organizations, called Inclusive Communities, to connect, foster belonging, learn to be informed allies, and make a difference. Dedicated paid time off to volunteer—80 hours each year—allows us to give back to causes we are passionate about, and nearly 86% do!

Our purpose, driven by our people, is what makes us the worldwide leader in technology that powers the internet. Helping our customers reimagine their applications, secure their enterprise, transform their infrastructure, and meet their sustainability goals is what we do best. We ensure that every step we take is a step towards a more inclusive future for all. Take your next step and be you, with us!

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Software Development

San Jose CA

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