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Sip Software Engineer Jobs (NOW HIRING)

Hiya

Senior Software Engineer

Seattle, WA · On-site

$139K - $183K/yr

SIP/RTP media handling and STT/TTS pipelines with strict latency requirements * Make foundational ... of professional software engineering experience * Strong depth in TypeScript or Python ...

Salesforce, Inc.

Senior Software Engineer

San Francisco, CA · On-site

$144K - $190K/yr

Job Category Software Engineering Job Details About Salesforce Salesforce is the #1 AI CRM, where ... Hands-on expertise configuring SBCs, establishing SIP trunking between voice systems, codec ...

Twilio

Software Engineer (L4)

Required: * 10+ years of software engineering experience with a strong focus on Android development ... Experience with ReSiprocate or other SIP stacks * Prior work on public-facing developer SDKs

Twilio

Software Engineer (L4)

Required: * 10+ years of software engineering experience with a strong focus on Android development ... Experience with real-time communication technologies (WebRTC, SIP, RTP) strongly preferred

Twilio

Software Engineer (L4)

Required: * 10+ years of software engineering experience with a strong focus on Android development ... Experience with ReSiprocate or other SIP stacks * Prior work on public-facing developer SDKs

Twilio

Software Engineer (L4)

Required: * 10+ years of software engineering experience with a strong focus on Android development ... Experience with real-time communication technologies (WebRTC, SIP, RTP) strongly preferred

Clerk AI

Staff Software Engineer

San Francisco, CA · On-site

Staff Software Engineer - Backend & AI Location: San Francisco, CA (In-office) About Clerk Chat ... Experience with voice AI, telephony, or real-time communication systems (WebRTC, SIP, SBCs)

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Sip Software Engineer information

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$147.5K

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How much do sip software engineer jobs pay per year?

As of Sep 11, 2026, the average yearly pay for sip software engineer in the United States is $147,524.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,000.00 and $173,000.00 per year, depending on experience, location, and employer.

What is a SIP software engineer?

A SIP Software Engineer is a professional who specializes in developing, implementing, and maintaining software solutions that use the Session Initiation Protocol (SIP). SIP is a signaling protocol widely used for initiating, maintaining, and terminating real-time communication sessions such as voice, video calls, and messaging over IP networks. SIP Software Engineers typically work on VoIP (Voice over IP) systems, telecom applications, and related networking technologies. Their responsibilities may include designing SIP-based applications, troubleshooting signaling issues, and ensuring interoperability between different communication systems.

What are the key skills and qualifications needed to thrive as a SIP software engineer?

To excel as a SIP Software Engineer, you need expertise in SIP protocol, VoIP technologies, and strong programming skills in languages like C, C++, or Java, often supported by a degree in computer science or a related field. Familiarity with telecom systems, SIP debugging tools (like Wireshark), and version control systems such as Git is typically required. Strong problem-solving, analytical thinking, and effective communication are vital soft skills in this role. These skills ensure the development of robust, reliable communication solutions and effective troubleshooting in complex real-time environments.

What are some common challenges faced by SIP software engineers when integrating with legacy telecommunication systems?

SIP Software Engineers often encounter challenges when integrating Session Initiation Protocol (SIP) solutions with legacy telecommunication systems due to differences in protocol standards and outdated infrastructure. Compatibility issues, such as mismatched codec support or signaling discrepancies, require careful troubleshooting and adaptation. Engineers must also ensure robust security and reliability, as legacy systems may lack modern authentication or encryption methods. Successful integration typically involves thorough testing, clear documentation, and close collaboration with network administrators and operations teams.

What is the difference between Sip Software Engineer vs VoIP Software Engineer?

AspectSip Software EngineerVoIP Software Engineer
Required CredentialsBachelor's in Computer Science, experience with SIP protocolsBachelor's in Computer Science, experience with VoIP systems
Work EnvironmentTelecommunications companies, VoIP service providersTelecommunications, networking, and VoIP service providers
Industry UsageFocuses on SIP protocol development and integrationDevelops broader VoIP solutions including SIP, RTP, and other protocols

The main difference is that a Sip Software Engineer specializes in SIP protocol development and integration, while a VoIP Software Engineer works on a wider range of VoIP technologies, including SIP, RTP, and other communication protocols. Both roles require similar credentials and are used in telecommunications and networking industries, but their focus areas differ slightly.

What are popular job titles related to Sip Software Engineer jobs?

For Sip Software Engineer jobs, the most frequently searched job titles are:

Infographic showing various Sip Software Engineer job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 86% Full Time, 9% Part Time, and 3% Contract. Highlights an 85% Physical, 3% Hybrid, and 12% Remote job distribution, with an average salary of $147,524 per year, or $70.9 per hour.

Senior Software Engineer

Seattle, WA • On-site

Hiya
Software Development • 11 - 50 employees
Learn more about Hiyaexternal

$139K - $183K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 19 days ago

Job description

About Hiya
At Hiya, we're making business calls more trusted, useful, and effective.
Voice remains one of the most important ways businesses communicate with their customers, but the value of a call depends on trust. When customers do not recognize who is calling or why, important conversations are missed, customer relationships suffer, and business outcomes are harder to achieve.
Hiya helps businesses create trusted calling experiences that benefit both sides of the conversation: enterprises can reach customers with confidence, and customers can answer with confidence. Our products support branded business calling, trusted caller identity, call performance insights, customer engagement, and voice security capabilities that help businesses strengthen relationships and improve outcomes.
This role sits in a core business area for Hiya and is focused on helping SMB and enterprise customers succeed.
About the Role
This role is part of a foundational team working at the intersection of backend systems, real-time voice infrastructure, and applied AI. You won't be maintaining legacy code or tweaking existing services-you'll be designing and building the backend platform from the ground up.
We're looking for engineers who get excited about greenfield architecture, who want to make early decisions that shape how a product scales, and who thrive when there's more whiteboard than runbook. As a Senior Backend Software Engineer, you'll design and build the backend services and APIs that power Hiya's next-generation voice products. This is a backend-first role with opportunities to work across the stack when it adds value.
Our team builds the platform at the intersection of voice, telephony, and artificial intelligence. Our work spans both audio intelligence (e.g., deepfake detection, speaker verification) and conversational AI, focused on building resilient, scalable systems that integrate into operator networks and enable our platform to perform in real-time telephony integrations.
What You'll Do
  • Design and build backend services and APIs from scratch using TypeScript / Node.js
  • Build real-time voice systems: SIP/RTP media handling and STT/TTS pipelines with strict latency requirements
  • Make foundational architecture decisions that will shape the platform for years to come
  • Build systems that operate in real-time, high-availability voice environments
  • Work with data stores and event streams, and manage deployments using Docker and Kubernetes (AWS)
  • Collaborate with a distributed team (Seattle and Europe) with async-first norms
  • This is a hybrid role with 3 days per week in office in Seattle and some travel required on an as-needed basis
What Success Looks Like
  • 4+ years of professional experience as a backend or backend-leaning full-stack engineer
  • Strong fundamentals in backend architecture, API design, and data-driven systems
  • Experience working with cloud infrastructure and CI/CD pipelines
  • Comfort with ambiguity-you know how to make good decisions without a playbook
  • Interest in applied AI, voice technology, or telephony (direct experience a plus, not required)
  • Excellent communication and self-organization skills

What We're Looking For
Required:
  • 3+ years of professional software engineering experience
  • Strong depth in TypeScript or Python; demonstrated ability to work meaningfully in other languages
  • Experience with Node.js backend development and modern web service patterns (REST APIs, async processing, event-driven systems)
  • Familiarity with DevOps basics: containers (Docker), deployment workflows, and reading infrastructure configs (Terraform, Helm, or similar)
  • Ability to work across Android or iOS code - you don't need to be a mobile specialist, but you can navigate a Kotlin or Swift codebase and make focused changes
  • Strong written and verbal communication - you write clear tickets, clear PRs, and proactively flag blockers rather than going quiet
  • Pragmatic judgment - you make sensible tradeoffs between speed and perfection and can explain why
  • Autonomous on well-scoped work - once you understand the goal, you drive to completion without needing hand-holding
  • Honest about what you don't know - you ask good questions early rather than disappearing and surfacing problems late
  • Reliable throughput - you ship consistently and follow through on commitments
  • Active use of AI tooling - you leverage AI-assisted coding as a force multiplier and have a point of view on where it creates real leverage in this kind of work

Preferred:
  • Experience with VoIP or telephony (SIP, RTP, WebRTC) or interest in learning it
  • Carrier or B2B platform context
  • Experience with Databricks, Kafka, or streaming data pipelines
  • Familiarity with AWS (DynamoDB, S3, Kinesis, EKS)

How We Work
Hiya is not a passive environment. We expect people to take ownership, form opinions, and engage directly with hard problems.
We work with a high degree of transparency and autonomy. Context is shared openly, and decisions are discussed, challenged, and then made. Once a call is made, we commit and move forward.
You'll be expected to work through ambiguity, weigh tradeoffs, and take responsibility for results-while keeping a high bar for quality and customer trust.
Every team member at Hiya is expected to live our core values:
  • Serve, our customers and partners by holding a high bar for trust and quality
  • Own, share in success and open up to failures
  • Lead, listen, show up with a point of view but commit entirely once a decision has been made
  • Improve, even if it means changing course or contradicting ourselves
  • Do, rather than observe

Our Interview Process
At Hiya, our interview process is designed to evaluate candidates through real, experience-based work. We focus on understanding how you think, exercise judgment, use leverage (including AI), and collaborate, rather than how well you perform in traditional interviews.
Process Overview
Our standard interview process follows this sequence:
  • Initial Screen: We confirm baseline alignment, role interest, relevant experience, and logistics.
  • Hiring Manager (HM) Screen: We evaluate role fit, expectations, and execution readiness.
  • Onsite Interview Loop: Each interviewer focuses on specific competencies, evaluating how you make decisions, navigate tradeoffs, and collaborate in real time
    • Live Working Assignment You'll then participate in a live, role-relevant working session as part of an interview loop with multiple interviewers. This experience is designed to reflect how work is done at Hiya and focuses on your real-time problem-solving and collaboration skills.
      During the session, you'll work through a problem live and walk interviewers through your thinking as you go. Interviewers will explore how you structure problems, communicate your reasoning, respond to questions and feedback, and adapt your approach in the moment. .
    • Future Hiya Value Interview: An independent conversation focused on your long-term potential, judgment under ambiguity, and ability to create sustained value as scope and complexity increase.
  • Reference Check: As a final step, we connect with 2-3 past supervisors to gain additional perspective on your experience and working style, and to further understand how you align with Hiya's values.

How We Invest in You
Compensation & Ownership
  • Base Salary: $113,000-$197,000
    • Compensation is determined by role scope, skills, experience, location, and market data.
  • Equity Compensation: ownership aligned with your impact and the company's growth
Benefits & Support
  • Employer-sponsored Insurance
    • Medical, dental, and vision (PPO & HDHP); 50% dependent coverage
    • Health, flexible spending, and dependent care accounts
    • Life, AD&D, and accident coverage, with company-paid life and long-term disability
  • 401(k) with 3% company match (via Fidelity)
  • Flexible vacation policy and paid company holidays
  • Paid parental leave
  • Work-from-home equipment stipend
  • $1,000 annually to invest in your learning and growth
  • $1,000/year in charitable donation matching
  • Team lunch 2x per week
Come Work With Us!
We're building a team with diverse perspectives, identities, and professional experiences. We evaluate candidates through a business lens and believe that diversity and unique viewpoints make our company stronger, more dynamic, and a great place to build a career.
We've been recognized by Built In, GeekWire, Comparably, G2, Forbes, and Deloitte Technology Fast 500 for our culture, innovation, leadership, compensation, and more. At Hiya, we're a people-centric company focused on helping each employee grow both personally and professionally. We create a culture of support and empowerment that challenges the status quo, resulting in an energized team that's passionate about their work. You'll love working here if you're looking for an innovative challenge that's disrupting an industry. Come join us!
Hiya is an equal opportunity employer. We celebrate diversity and are committed to building an inclusive environment for all employees.

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