Principal Software Engineer, Audio & Video Infrastructure

Principal Software Engineer

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.

This is where your work saves lives

We're seeking a Principal 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.

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.

• 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 Free SWITCH.
• Experience developing backend services  or Node.js/Type Script.
• Ability to troubleshoot complex network, signaling, and media delivery challenges.

• 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 Type Script.

• 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.

If you're passionate about building world-class voice and video communication systems and want your work to improve healthcare experiences at scale, we'd love to hear from you.

Baxter is committed to supporting the needs for flexibility in the…