Principal Software Engineer - VolP,

Baxter International Inc.; Raleigh (NC); Hybrid; USD 120,000 - 165,000; Full time

Benefits offered by this job

Medical and dental coverage

ESPP - Employee Stock Purchase Plan

401(k) with company match

Educational assistance

Job summary

Baxter International Inc. is seeking a Principal (Senior) Software Engineer to lead the architecture and evolution of the audio and video communication infrastructure powering Connected Care products.

You will own mission-critical systems enabling real-time communication for clinicians, patients, and caregivers, leveraging VoIP, SIP, and WebRTC to deliver ultra-low latency, scalable platforms.

Qualifications

• 5+ years of experience developing real-time voice and video systems.
• Deep hands-on expertise with SIP and related telecom protocols.
• Production-level experience with VoIP platforms in production.
• Experience with Kamailio or FreeSWITCH.
• Backend services with .NET or Node.js/TypeScript.
• Troubleshoot complex network, signaling, and media delivery challenges.

Responsibilities

• Architect and evolve core audio/video infrastructure for Connected Care.
• Design and operate highly available SIP routing platforms at scale.
• Scale and optimize media servers, SBCs, and signaling environments.
• Build low-latency call routing solutions for seamless communication.
• Partner with engineering teams to integrate voice/video into apps.
• Investigate and resolve real-time communication challenges (latency, packet loss).
• Drive tech strategy and engineering best practices for voice/video infra.
• Mentor engineers and act as telecom/RTC SME.

Job description

This is where your work makes a difference.

At Baxter, we believe every person—regardless of who they are or where they are from—deserves a chance to live a healthy life. It was our founding belief in 1931 and continues to be our guiding principle. We are redefining healthcare delivery to make a greater impact today, tomorrow, and beyond.

Our Baxter colleagues are united by our Mission to Save and Sustain Lives. Together, our community is driven by a culture of courage, trust, and collaboration. Every individual is empowered to take ownership and make a meaningful impact. We strive for efficient and effective operations, and we hold each other accountable for delivering exceptional results.

Here, you will find more than just a job—you will find purpose and pride.

Your Role at Baxter

This is where your work saves lives

We're seeking a Principal (Senior) Software Engineer to lead the architecture and evolution of the audio and video communication infrastructure powering our Connected Care products. In this highly visible role, you'll own mission‑critical systems that enable seamless, real‑time communication experiences for healthcare professionals, patients, and caregivers.

This is more than a telecom engineering role—it's an opportunity to build scalable, high‑performance communication platforms that directly support better healthcare outcomes. You'll leverage deep expertise in VoIP, SIP, and real‑time media technologies to deliver highly available, ultra‑low latency solutions while helping shape the future of connected healthcare.

What You’ll be doing

As a Technical Leader, You Will

• Architect and evolve the core audio and video communication infrastructure that powers our Connected Care ecosystem.
• Design and operate highly available SIP routing platforms supporting real‑time communications at scale.
• Scale and optimize media servers, Session Border Controllers (SBCs), and signaling environments to ensure exceptional reliability and performance.
• Build intelligent, low‑latency call routing solutions that deliver seamless communication experiences.
• Partner with software engineering teams to integrate voice and video capabilities into modern applications and services.
• Investigate and resolve complex real‑time communication challenges, including media quality issues, packet loss, latency, and network performance.
• Drive technical strategy and establish engineering best practices for voice and video infrastructure.
• Mentor engineers across the organization and serve as a subject matter expert in telecom and real‑time communications technologies.

What you'll bring

• 5+ years of experience developing and supporting real‑time voice and video communication systems.
• Deep hands‑on expertise with SIP and related telecommunications protocols.
• 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 delivery challenges.

Preferred Qualifications

• Experience developing call‑routing logic and automation using LUA.
• Hands‑on experience with WebRTC, STUN/TURN, and browser‑based audio/video communications.
• Familiarity with Asterisk platforms and deployments.
• Strong ANSI C knowledge for low‑level debugging, media processing, and infrastructure optimization.
• Advanced proficiency with Node.js and TypeScript.

Why Join Us?

• Own and influence the communication platform strategy behind innovative Connected Care products.
• Work on technologies that directly impact clinicians, caregivers, and patients around the world.
• Tackle complex engineering challenges within real‑time communications, networking, and distributed systems.
• Collaborate with talented cross‑functional teams driving the next generation of healthcare technology.
• Make a meaningful impact while growing your technical leadership as a Principal Engineer.

Baxter is committed to supporting the needs for flexibility in the workplace. We do so through our flexible workplace policy which includes a minimum of 3 days a week onsite. This policy provides the benefits of connecting and collaborating in‑person in support of our Mission.

We understand compensation is an important factor as you consider the next step in your career. At Baxter, we are committed to equitable pay for all employees, and we strive to be more transparent with our pay practices. The estimated base salary for this position is $120,000 to $165,000 annually. The estimated range is meant to reflect an anticipated salary range for the position. We may pay more or less than of the anticipated range based upon market data and other factors, all of which are subject to change. Individual pay is based upon location, skills and expertise, experience, and other relevant factors. This position may also be eligible for discretionary bonuses.

Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment visa at this time.

US Benefits At Baxter (except For Puerto Rico)

This is where your well‑being matters. Baxter offers comprehensive compensation and benefits packages for eligible roles.

• medical and dental coverage that start on day one
• insurance coverage for basic life, accident, short‑term and long‑term disability, and business travel accident insurance
• Employee Stock Purchase Plan (ESPP) with the ability to purchase company stock at a discount
• 401(k) Retirement Savings Plan (RSP) with options for employee contributions and company matching
• Flexible Spending Accounts
• educational assistance programs
• paid holidays
• paid time off ranging from 20 to 35 days based on length of service
• family and medical leaves of absence
• paid parental leave
• commuting benefits
• Employee Discount Program
• Employee Assistance Program (EAP)
• childcare benefits

Join us and enjoy the competitive compensation and benefits we offer to our employees.

Baxter is an equal opportunity employer. Baxter evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.

Know Your Rights: Workplace Discrimination is Illegal

Reasonable Accommodations

Baxter is committed to working with and providing reasonable accommodations to individuals with disabilities globally. If, because of a medical condition or disability, you need a reasonable accommodation for any part of the application or interview process, we are ready to assist you.

Baxter has discovered incidents of employment scams, where fraudulent parties pose as Baxter employees, recruiters, or other agents, and engage with online job seekers in an attempt to steal personal and/or financial information.