Principal Software Engineer

About Chamber: Cardiovascular disease remains the leading cause of death in America. At Chamber, we’re rebuilding the system for cardiology — creating a world where outcomes, not volume, define success. We partner with independent cardiologists to help them lead population health efforts in their communities, equipping them with technology, data, and operational tools that turn complex insights into better care for patients. Our model blends clinical expertise, thoughtful design, and a modern operating platform that supports physicians, patients, and payers alike. We believe innovation and empathy go hand in hand, and by combining cutting-edge AI tools with a relentless focus on human care, we can transform heart health at scale. Role Overview: The Staff / Principal Full Stack Engineer will play a central role in designing and building Chamber’s core application platform. This is a hands-on role for someone who thrives in a startup environment, enjoys solving complex product and data challenges, and is excited to build systems that make a difference in healthcare. This role will help design and build the web applications that power Chamber’s operational tools for care teams and healthcare providers. These applications support real-time cardiology insights and value-based care workflows, combining clinical data, analytics, and AI-assisted features. The role will work across the stack—from modern web interfaces to backend services and API integrations—partnering closely with product, data, and infrastructure engineers to deliver reliable, high-impact software. This role will have a meaningful influence on application architecture, engineering practices, and the evolution of Chamber’s product platform. Areas of Impact Designing and building core systems that power Chamber’s Web apps and operational tools for care teams and providers Contributing to the evolution of our full-stack architecture across the React / Next.js frontend and Node.js backend services Developing application services that integrate with Chamber’s healthcare data platform and FHIR-based systems Building features that combine clinical data, analytics, and AI-powered capabilities Collaborating closely with a small, senior engineering team to shape engineering standards, system design, and product delivery Key Responsibilities Design and build Chamber’s core web applications. Develop and evolve the full-stack systems that power Chamber’s operational tools for care teams and providers. Build scalable application components that support complex healthcare workflows and large volumes of clinical and operational data. Build modern, high-quality web interfaces. Design and implement intuitive user experiences using React, Next.js, and Tailwind. Translate complex workflows and analytics into usable and reliable tools for clinicians and care operations teams. Develop backend services and application logic. Build and maintain Node.js and AWS lambda services that power application workflows, APIs, and integrations. Implement business logic and application services that interact with Chamber’s healthcare data systems, including FHIR-based platforms. Integrate data and AI-powered capabilities. Collaborate with others to integrate analytics and AI-powered features into the application layer. Apply LLM-powered functionality where it meaningfully improves workflows and insights for care teams. Collaborate across engineering disciplines. Work closely with fellow engineers to deliver reliable and scalable systems. Contribute to architectural decisions, engineering standards, and shared development practices. Knowledge, Skills, and Abilities Strong full-stack engineering expertise. Extensive experience building modern web applications, spanning frontend systems, backend services, and API design. Modern frontend development. Strong experience building production applications with React, Next.js, and TypeScript. Able to design maintainable component architectures and deliver high-quality user interfaces. Backend systems and service design. Experience designing and implementing backend services and APIs in Node.js or similar environments. Able to build reliable services that support complex workflows and data interactions. Workflow-oriented product development. Experience building applications that support operational workflows, stateful processes, and real-world user interactions. Collaborative engineering mindset. Able to work effectively within a small, senior engineering team, contributing ideas, shaping architecture, and collaborating closely with product and data partners. Startup ownership mindset. Comfortable operating in fast-moving and sometimes ambiguous environments, taking ownership of meaningful systems and helping drive solutions from concept through production. Job Requirements 8–12 years of experience in software engineering with significant full-stack development experience Proven experience designing and building production web applications Strong experience with React, Next.js, and TypeScript Experience building backend services using Node.js or similar platforms Experience designing APIs and implementing application business logic Experience working with cloud-based systems (AWS preferred) Experience building applications that interact with external APIs or data platforms Strong communication and collaboration skills Comfortable with ambiguity and working in a fast-paced startup environment Must be based in the U.S. and able to align with Eastern Time working hours Nice to Have: Experience working with healthcare data platforms or healthcare technology systems Familiarity with FHIR or healthcare interoperability standards Experience integrating AI-powered functionality into production applications Experience working in HIPAA- or SOC2-compliant environments Location: Remote role based in Eastern Time Zone Chamber Values: Our values guide how we lead, collaborate, and care: Low Ego: We stay grounded, curious, and open to feedback. Empathy: We build trust through compassion and thoughtful communication. Courage: We take action, think critically, and challenge ideas respectfully. Ownership: We follow through with integrity and hold ourselves to high standards. Grit: We push through ambiguity, move with urgency, and solve problems with horsepower and heart.