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# Senior Software Engineer (VoIP, Python)

- **Company:** Lifesize, Inc.
- **Location:** Raleigh, NC, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Server Applications, Unit Testing, VoIP, Network Analysis, Computer Programming, Continuous Integration, Desktop Publishing, Linux, Amazon DynamoDB, Event-Driven Programming, H.323 Protocol, Python (Programming Language), Nginx, RabbitMQ, Redis, Cloud Services, WebRTC, Cloud Platform System, Software Application Programming, Git, Information Technology, Low Latency, Docker
- **Published:** August 9, 2026
- **Apply:** https://www.wayup.com/i-j-lifesize-881758575233618/

## About the Role

+ 5+ years work experience, with 3+ years developing server-side applications on Linux.
 + 2+ years experience with VoIP protocols such as H.323 / SIP.
 + 2+ years programming experience with Python.
 + 1+ years developing and deploying low-latency, scalable, and highly available applications.
AN IDEAL CANDIDATE FOR THIS POSITION WILL:

 + Have worked on development of a VoIP cloud service or server product that was deployed in the field.
 + Have hands-on experience developing applications using Python. Familiarity with event-driven programming in Python is a plus.
 + Have good understanding of VoIP session setup and teardown using SIP and/or H.323.
 + Have strong knowledge of cloud architectures.
 + Have experience developing services deployed on AWS that utilize one or more of the following: DynamoDB, RabbitMQ, Nginx, Redis.
 + Document design and implementation details and be comfortable explaining them to other engineers.
 + Write readable code with unit test coverage.
 + Work with Git and continuous integration systems.
 + Have excellent troubleshooting skills and familiarity with test tools including network analyzers & load injectors.
 + Be eager to learn new technologies and contribute to projects outside of their core strengths.
 + Have excellent communication skills with the ability to explain technical issues to any non-technical co-workers.
 + Preferably a Bachelor's Degree in Computer Science, Management Information Systems, related field or equivalent real world experience.
A STANDOUT CANDIDATE WILL ALSO HAVE EXPERIENCE WITH ONE OR MORE OF THE FOLLOWING:

 + WebRTC signaling support on server products
 + Inter-operability with Microsoft Skype for Business
 + Docker

## Description

+ Help build our new software services to replace monolithic components of existing architecture and greatly scale our capacity.
 + Translate new product requirements to technology choices, architecture, design and server-side implementation needed to provide the solution.
 + Working with developers, designers, testers, and product managers in a collaborative agile environment to deliver product enhancements on an ongoing basis to live deployment.
 + Solving high priority customer issues and getting the fixes deployed within a quick turnaround time.


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