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Sip Developer Jobs (NOW HIRING)

IT America Inc

SIP/VoIP Software Engineer

Austin, TX · On-site

SIP/VoIP Software Engineer Location: Austin, TX (Hybrid) Duration: Long term contract Job Summary: We are looking for a skilled Software Engineer with strong expertise in SIP and VoIP technologies.

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Sip Developer information

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$40K

$129.3K

$158.5K

How much do sip developer jobs pay per year?

As of Jul 4, 2026, the average yearly pay for sip developer in the United States is $129,348.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,000.00 and $157,000.00 per year, depending on experience, location, and employer.

What is the difference between Sip Developer vs VoIP Engineer?

AspectSip DeveloperVoIP Engineer
CredentialsKnowledge of SIP protocols, programming skills, relevant certificationsSame as Sip Developer, often with additional networking certifications
Work EnvironmentSoftware development teams, telecom companies, VoIP service providersTelecom infrastructure, network operations, system integration
Industry UsagePrimarily in VoIP application development and software solutionsInvolved in designing, deploying, and maintaining VoIP systems

While both roles focus on VoIP technology, Sip Developers primarily create and optimize SIP-based software applications, whereas VoIP Engineers handle the deployment and maintenance of VoIP systems. The roles often overlap, but Sip Developers are more software-centric, and VoIP Engineers focus on infrastructure and network integration.

What are SIP Developers?

SIP Developers are software professionals who specialize in creating, maintaining, and optimizing applications that use the Session Initiation Protocol (SIP). SIP is a signaling protocol widely used for initiating, managing, and terminating real-time communication sessions, such as voice and video calls, over Internet Protocol (IP) networks. SIP Developers often work on VoIP (Voice over IP) systems, unified communications platforms, and telephony applications. Their role includes integrating SIP capabilities into software, troubleshooting protocol issues, and ensuring secure and reliable communication. They typically have expertise in networking, telecommunications, and relevant programming languages.

What are some common challenges faced by SIP Developers when integrating SIP protocols with existing communication systems?

One of the main challenges SIP Developers encounter is ensuring seamless interoperability between SIP-based systems and legacy telephony infrastructure. Compatibility issues can arise due to differences in protocol implementation or network configurations, requiring careful troubleshooting and thorough testing. Additionally, SIP Developers often address security concerns, such as protecting against spoofing and denial-of-service attacks, while maintaining high call quality and reliability. Collaborating with network engineers and system administrators is essential to resolve these challenges and deliver robust communication solutions.

What are the key skills and qualifications needed to thrive as a SIP Developer, and why are they important?

To thrive as a SIP Developer, you need strong knowledge of SIP protocol, VoIP technologies, and programming languages such as C, C++, or Java, often backed by a degree in computer science or related fields. Familiarity with SIP servers (like Asterisk or FreeSWITCH), network troubleshooting tools, and relevant certifications (e.g., CCNA VoIP) is typically required. Excellent problem-solving, analytical thinking, and effective communication skills set top SIP Developers apart. These skills ensure reliable, secure, and scalable real-time communications solutions in fast-evolving telecommunication environments.
More about Sip Developer jobs
What job categories do people searching Sip Developer jobs look for? The top searched job categories for Sip Developer jobs are:
Sip Developer jobs near you
Infographic showing various Sip Developer job openings in the United States as of June 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Remote job distribution, with an average salary of $129,348 per year, or $62.2 per hour.

Staff SIP Engineer (Remote)

Telegent, Inc.

Pleasant Grove, UT • Remote

Full-time

Medical, Dental, Vision, PTO

Posted 6 days ago

Job description

ABOUT TELEGENT

Telegent is a next-generation mobile communications platform redefining how businesses and brands connect people through wireless technology. We provide a software-first, API-driven mobile Platform-as-a-Service (mPaaS) that combines intelligent voice, messaging, data, and unified communications into a single, flexible solution.

At Telegent, we move fast, think creatively, and build technology that makes mobile communications simpler, more powerful, and more adaptive for the future.

ABOUT THE ROLE

The Staff SIP Engineer is responsible for designing, implementing, and supporting carrier-grade SIP-based voice services across Telegent's mobile and unified communications platforms. This role works closely with network engineering, product, operations, and carrier partners to ensure high availability, call quality, scalability, and regulatory compliance across our voice infrastructure.

This is a hands-on role requiring deep SIP expertise, strong troubleshooting skills, and real-world carrier interconnection experience.

WHAT YOU'LL DO

  • Design, deploy, and maintain SIP-based voice services, including SIP trunking, interconnects, and call routing
  • Manage carrier and partner integrations, including SIP peering, codec negotiation, and signaling normalization
  • Troubleshoot complex call flow issues involving SIP signaling, RTP, NAT traversal, and media path failures
  • Monitor and optimize voice quality metrics (MOS, ASR, ACD, PDD, jitter, packet loss)
  • Configure and support SBCs, softswitches, and media gateways in production environments
  • Collaborate with operations and NOC teams to support 24/7 voice services and incident response
  • Ensure compliance with E911, STIR/SHAKEN, lawful intercept, and other regulatory requirements
  • Participate in capacity planning redundancy design, and disaster recovery initiatives
  • Create and maintain technical documentation, call flow diagrams, and operational run books

WHAT WE'RE LOOKING FOR

  • 8+
  • Deep expertise with OpenSIPS: configuration, scripting, and large-scale deployment
  • Strong understanding of SIP, RTP, SRTP, and related VoIP and cellular signaling protocols
  • Experience with cellular SIP (IMS, VoLTE, or interconnect/MVNO environments) 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 resolve complex signaling issues using tools like Homer, Wireshark, or sngrep
  • Comfortable operating in a remote, high-autonomy environment
  • Strong written communication skills: you can explain complex systems clearly to both engineers and stakeholders
  • Familiarity with IMS architecture and interconnects
  • Experience with cloud-based voice infrastructure (AWS, GCP, Azure)
  • Track record of working across teams as a technical leader without a formal management role
  • Experience supporting high-volume, high-availability voice platforms

TECHNOLOGIES & TOOLS

SIP, OpenSIPS, RTP / SRTP, VoIP, Cellular / IMS, VoLTE, mPaaS, FMC / MFC, Homer, Wireshark, sngrep, Linux

BENEFITS

  • Competitive compensation package, including performance-based bonus potential and comprehensive health benefits
  • 100% employer-paid medical, dental, and vision
  • Unlimited PTO
  • Equipment provided