Principal Software Engineer, Audio & Video Infrastructure,

About the role

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.

Responsibilities

• 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.

Requirements

• 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.

Benefits

Baxter offers comprehensive compensation and benefits packages for eligible roles. Our health and well-being benefits include medical and dental coverage that start on day one, as well as insurance coverage for basic life, accident, short-term and long-term disability, and business travel accident insurance. Financial and retirement benefits include the Employee Stock Purchase Plan (ESPP), with the ability to purchase company stock at a discount, and the 401(k) Retirement Savings Plan (RSP), with options for employee contributions and company matching. We also offer Flexible Spending Accounts, educational assistance programs, and time-off benefits such as paid holidays, paid time off ranging from 20 to 35 days based on length of service, family and medical leaves of absence, and paid parental leave. Additional benefits include commuting benefits, the Employee Discount Program, the Employee Assistance Program (EAP), and childcare benefits.