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$221.37k - $228.7k
...quality user experience;Requires 4 years experience in utilizing open-source projects including SIP stacks (PJSIP, reSIProcate, FreeSWITCH) to support fundamental layer covering low-level SIP protocol parsing;Requires 4 years experience in utilizing integrated development...SuggestedFull timeWork at officeRemote work- ...you will ensure our distributed voice platform is robust, scalable, and observable using core components like Kamailio, RTPengine, FreeSWITCH, and Homer/HEPIC, while driving execution, setting technical vision, and coaching engineers to achieve their career growth.This...SuggestedWork at officeRemote work
$120k - $165k
....Strong experience building and operating VoIP platforms in production environments.Production-level experience with Kamailio or FreeSWITCH.Experience developing backend services using .NET or Node.js/TypeScript.Ability to troubleshoot complex network, signaling, and media...SuggestedFull timeTemporary workWork visaFlexible hours3 days per week$141k - $188k
...You BringProven experience with VoIP architecture. Hands-on installation experience deploying open-source UC (such as Kamailio, FreeSWITCH, Asterisk, etc.)Extensive knowledge and understanding of VoIP deployments and protocols like SIP, SDP, RTP, Web RTC, and their troubleshooting...SuggestedPart timeWork experience placementWork at office$141k - $188k
...You BringProven experience with VoIP architecture. Hands-on installation experience deploying open-source UC (such as Kamailio, FreeSWITCH, Asterisk, etc.)Extensive knowledge and understanding of VoIP deployments and protocols like SIP, SDP, RTP, Web RTC, and their troubleshooting...SuggestedPart timeWork experience placementWork at office$141k - $198k
...-tolerant systems in the cloud, not just in hardware-based telecom infrastructureFamiliarity with open-source VoIP tools such as FreeSWITCH and Kamailio. Direct experience with these is a strong signal; adjacent experience is welcomeComfort operating in a highly cross-...SuggestedWork experience placementWork at office$42k - $60k
...provide additional training for the technologies or services below, but you will need to have a solid understanding of the basics. FreeSWITCH, Kamailio, or OpenSIPS experience Yeastar P-Series (or similar multi-tenant PBX) administration STIR/SHAKEN, E911, or telecom...SuggestedFull timeWork at officeImmediate startRelocationMonday to FridayFlexible hoursWeekend work- ...while actively designing, coding, integrating, testing and troubleshooting production voice services built primarily on Kamailio and FreeSWITCH. You will shape the voice platform architecture, establish engineering standards, solve the most complex real-time communications...SuggestedFull time
- ...systems. Strong command of SIP, RTP, SDP, TLS/SRTP and debugging tools (sngrep, Homer, Wireshark). Deep hands‑on experience with FreeSWITCH, Kamailio, or OpenSIPS. Experience with UCaaS or carrier‑grade SIP platforms (NetSapiens preferred). Experience with SBCs such as...SuggestedFull time
- ...Key technologies and keywords: SIP, session initiation protocol, VOIP, BLF, busy lamp field, MWI, message-waiting indicator, freeswitch, opensips, software development lifecycle (SDLC), Linux testing java applications, JIRA, practitest, git, Zephyr, test lodge, wan...Suggested
- ...Session Border Controllers (preferably Sonus/Ribbon, Audio Codes), SIP proxies, Media Servers (preferably AudioCodes IPM-6310 and FreeSWITCH). ~ In depth knowledge of Wireshark, Empirix or other network protocol analyzers Ability to capture and analyze RTP streams...SuggestedRemote jobFull timeLocal areaWorldwide
- ...Product Managers and Designers. Our current stack includes Node.js, TypeScript, React, Ruby, PostgreSQL, Google Cloud Platform, and FreeSWITCH. The Product Platform Team The Product Platform team sits at the center of Orum’s architecture, building the foundational systems...Suggested
$150k - $180k
...and build Golang-based SIP services and control planes on top of open-source components such as Kamailio (or similar SIP server), FreeSWITCH/OpenSIPS, and related media/RTP proxies. This is a senior individual contributor role with high ownership and direct impact on a...SuggestedFull timeWork at officeFlexible hours- ...Product Managers and Designers. Our current stack includes Node.js, TypeScript, React, Ruby, PostgreSQL, Google Cloud Platform, and FreeSWITCH. The Dialer Team The Dialer team owns the core of Orum’s platform, powering millions of outbound calls and generating the...SuggestedRemote jobFull timeFlexible hours
$180k - $225k
...backend, platform, or infrastructure engineering experience ~ Strong experience with telephony systems including, OpenSIPS and FreeSWITCH ~ Experience debugging SIP and RTP issues using tools such as packet captures or SIP traces ~ Experience operating and owning...SuggestedLocal areaRemote work- ...Engineer to own the core VoIP/SIP backbone. You will design and implement Golang-based services, integrate with Kamailio/OpenSIPS and FreeSWITCH, and ensure scalable, secure telephony for thousands of dental practices. This hybrid role offers a competitive salary, equity,...
- ...Responsibilities Own Tin Can’s production SIP and media plane, including Kamailio, FreeSWITCH, and carrier trunking. Review call-path changes and author SIP test scenarios that gate voice changes before release. Write and maintain Kamailio routing logic, including...Full time
- ...GCP, AWS, or Azure; familiarity with CI/CD and progressive delivery practices. Experience in telephony, SIP softswitches (e.g., FreeSWITCH), or adjacent real-time/event-driven domains. Familiarity with our stack: NodeJS with TypeScript, React, PostgreSQL, Google...Full timeFlexible hours
- ...strongly preferred ~ Experience with SBCs and software platforms (e.g., Metaswitch, Sonus/Ribbon, Oracle, SBC, OpenSIPS, Kamailio, FreeSWITCH, Asterisk) ~ Familiarity with AI development workflows and tools is strongly preferred ~ Proven ability to diagnose and...Full timeRemote workFlexible hoursNight shift
- ...identifying and resolving bottlenecks and performance issues within our VoIP infrastructure ~ Experience with VoIP platforms like FreeSwitch, Kamailio, OpenSIPS, Asterisk ~ A hands-on, daily relationship with AI coding tools (Claude Code, Cursor, Copilot, etc.) - you'...Full timeTemporary workSummer holidayLocal areaWeekend work
- ...configuring automation with Ansible, AWX, Git, and Foreman Building and configuring software-defined phone systems such as Asterisk or Freeswitch Building and configuring monitoring systems like Prometheus, Nagios, or Zabbix Building and configuring ELK systems...Work at office
$74.5 per hour
...opensource/propreitery SIP/Media stacks.3. Experience in C / C++ is a must.4. Development experience with modules like Kamailio/FreeSwitch/Asterisk is a must Years of experience in each of the must-have skills: 8+ ( flexible with at least 5+) Any Certifications required...Hourly payPermanent employmentWork at officeRemote workFlexible hours3 days per week- ...and Designers to deliver high-impact experiences using Node.js, TypeScript, React, Ruby, PostgreSQL, Google Cloud Platform, and FreeSWITCH. The role centers on building scalable, real-time workflows with a strong emphasis on clean, maintainable code and mentorship within...
- ...analysis. ~ Clear written and verbal communication skills. ~ Collaborative, low-ego working style. ~ Preferred: production FreeSWITCH, Kamailio, carrier SIP trunking, seasonal peak load testing, Postgres at scale, consumer hardware fleet operations, or Grafana experience...Full time
$90 per hour
...Number of Openings 2Job Title Freeswitch Voice DeveloperDuration of contract 12 monthsNo of years experience 5+Detailed job description - Skill Set: Position would be in Austin, Tx Deep understanding and experience Voice/VoIP/SIP expertAble to follow each leg of a call...Contract workLocal area- ...• Experience interconnecting with multiple upstream carriers and managing the routing and failover complexity that brings.. • FreeSWITCH or other media servers as a complement to Asterisk. How you work • You assume things will fail, and you design and test so...Local areaImmediate start
$6,000 - $7,500 per month
...into clear explanations and actionable solutions for both technical and non-technical stakeholders. ~ Familiarity with Asterisk, FreeSWITCH, Kamailio, or other SIP proxies and SIP servers is a plus. ~ Comfortable working independently in a fast-paced, remote...Full timePart timeFor contractorsRemote workFlexible hoursJobgether
United States4 days ago- ...Able to follow each leg of a call flow and perform and provide in-depth analysis on what is or is not occuring. Understand Freeswitch modular design. Familiar with real-time communications and their applications Platform owner, with a great degree of familiarity...
Info Way Solutions
Austin, TX1 day ago - ..., and maintain VoIP networks and telephony systems. Install, configure, and troubleshoot IP PBX platforms such as Asterisk, FreeSWITCH, Cisco CUCM, 3CX, or similar systems. Manage SIP trunks, SIP signaling, RTP media, codecs, and call routing configurations....
Ova Technologies
New York, NY2 days ago - ...customers notice them; help drive our ongoing Datadog rollout. Manage container workloads (Docker on ECS), including our specialized FreeSWITCH fax/telephony containers. Own the infrastructure that our distributed system of independently scaled microservices runs on —...Work experience placement
Data Dimensions
Janesville, WI4 days ago
