Principal Software Engineer

Baxter International Inc.; Florida; On-site; USD 120,000 - 165,000; Full time

Job summary

Baxter International Inc. is seeking a Principal Software Engineer (Mobile) to lead the design and development of React Native mobile applications for iOS and Android, focusing on secure voice calling and real-time communications within a healthcare environment.

The role requires 5+ years in software engineering, strong React Native/JavaScript skills, and experience in regulated healthcare settings. Expect collaboration across teams, rigorous reviews, and production readiness activities.

Qualifications

• Bachelor's degree in CS, software engineering, or related field.
• 5+ years of professional software engineering experience, including mobile development.
• Proven expertise with React Native and modern JavaScript/TypeScript.
• Experience on iOS and Android platforms and secure mobile voice calling.

Responsibilities

• Lead architecture, development, and enhancement of Mercury mobile apps using React Native for iOS and Android.
• Design and implement secure voice calling and real-time communications.
• Collaborate with backend, UX, QA, cybersecurity, regulatory, and product stakeholders.

Education

Bachelor's degree in Computer Science or Software Engineering

Tools

JIRA

Confluence

JAMA

PostgreSQL

GitHub

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.

Role Summary

The Principal Software Engineer (Mobile) is a hands‑on technical leader responsible for the design, development, and evolution of mobile applications supporting both iOS and Android platforms using React Native with a background insecure voice calling.

Key Responsibilities

• Lead the architecture, development, and enhancement of Mercury mobile applications using React Native for iOS and Android.
• Design and implement secure voice calling capabilities across iOS and Android.
• Integrate Mercury mobile applications with real-time communications services.
• Address mobile voice concerns including call signaling , session lifecycle, audio routing, connectivity changes, permissions, notifications, background behavior, and call reliability.
• Ensure functional parity and a consistent user experience across both mobile platforms.
• Collaborate with backend, web, UX, QA, cybersecurity, regulatory, and product stakeholders.
• Design and implement integrations using REST APIs, WebSockets, SignalR, and real-time voice communication technologies.
• Apply HIPAA-aligned security practices for data handling, authentication, voice communications, messaging, and notifications.
• Participate in Agile development ceremonies and work tracking using JIRA and Confluence.
• Contribute to design controls, requirements traceability, verification, and validation documentation using JAMA.
• Perform rigorous code reviews and champion mobile engineering best practices.
• Mentor engineers and raise the overall quality and consistency of mobile development.
• Support production readiness, monitoring, troubleshooting, and issue resolution in live healthcare environments.

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related discipline and 5+ years of professional software engineering experience, including significant mobile application development experience.
• Proven expertise with React Native and modern JavaScript/TypeScript development.
• Strong experience developing for both iOS and Android platforms.
• Strong experience integrating mobile applications with backend systems using REST APIs and real-time communication technologies.
• Experience designing or supporting mobile voice calling, VoIP, WebRTC, or comparable real-time communications functionality.
• Experience with mobile audio behavior, call state management, operating-system permissions, push notifications, and background execution.
• Experience working in regulated environments, preferably healthcare or life sciences.
• Proficiency with GitHub, PostgreSQL at the application consumption or interaction layer, and collaborative development workflows.

Preferred Qualifications

• Hands‑on experience integrating mobile applications with real-time communications platforms.
• Experience with WebRTC, SIP, VoIP, media sessions, call signaling, or voice gateway integrations.
• Experience building secure communication, clinical communication, messaging, or alerting applications.
• Familiarity with iOS and Android native audio, telephony, push notification, and background‑processing APIs.
• Experience troubleshooting real‑time voice quality, connectivity, latency, reconnection, and device compatibility issues.
• Familiarity with mobile deployment pipelines, release management, and mobile application lifecycle management.
• Understanding of healthcare workflows, clinical environments, nurse call, patient‑care communications, or medical‑device integrations.
• Experience collaborating with UX design using Figma.
• Experience leading technical designs, architecture reviews, and cross‑functional engineering initiatives.

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. For questions about this, our pay philosophy, and available benefits, please speak to the recruiter if you decide to apply and are selected for an interview.

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. 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. Join us and enjoy the competitive compensation and benefits we offer to our employees.For additional information regarding Baxter US Benefits, please speak with your recruiter or visit our Benefits site: Benefits | Baxter

Equal Employment Opportunity

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, please click on the link here and let us know the nature of your request along with your contact information.

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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.