Senior Software Engineer, AI Billing (Brazil)

About the Role

The Revenue Cycle Management (RCM) Product Team at Commure + Athelas powers the core operating system for our practices. Our product—Insights—provides practice staff and administrators with everything they need to efficiently manage their practice’s operations. We maintain 150+ customer-facing features, ranging from high-level reports and visualizations to workflow automation tools to help the staff boost their practice’s revenue.

As a Senior Software Engineer Engineer, you will play a key role in scaling and maintaining our website’s infrastructure, ensuring a seamless user experience as we grow to support thousands of practices nationwide.

Beyond development, this role will help define the technical direction of Insights’ architecture, shaping how and where services are built and deployed. You’ll help foster a culture of continuous improvement, enhancing the reliability, scalability, and performance of our web applications while elevating the technical skills of the entire engineering organization.

What You’ll Do

• Drive the technical direction of our practice management platform, Insights, ensuring it scales to support thousands of practices and millions of users

• Design, build, and maintain scalable full-stack solutions using ReactJS, Python, and PostgreSQL

• Improve system reliability and observability by implementing best practices in monitoring, logging, and alerting

• Optimize performance and scalability of our web applications, ensuring seamless user experiences as we rapidly expand

• Collaborate with infrastructure and backend teams to ensure high availability and resilience of core functions

• Mentor and guide engineers, fostering a culture of technical excellence and continuous learning

• Lead and deliver high-impact projects, balancing speed and quality in a fast-paced, high-ownership environment

• Conduct in-depth code reviews, uphold best practices, and drive architectural improvements across the stack

• Work closely with product and design teams to build intuitive, user-friendly experiences for healthcare providers and staff

What You Have

• 5+ years of professional software development experience, with a focus on building scalable full-stack applications

• Proficiency in full-stack development with expertise in JavaScript (React/Vue), Python, and PostgreSQL

• Strong architectural skills with experience designing and maintaining highly scalable, reliable, and performant web applications

• Experience leading multi-month, high-impact projects, balancing trade-offs, and delivering results in a fast-paced environment

• Deep understanding of modern front-end engineering—React fundamentals, performance optimization, state management, and component-driven design

• Experience working with complex backend systems, including designing APIs and optimizing database performance

• Strong debugging and problem-solving skills, with a focus on observability (monitoring, logging, and alerting best practices)

• Ability to mentor engineers and drive technical excellence across the organization

• Excellent communication skills, with the ability to effectively present technical concepts to leadership and cross-functional teams

Nice to Have

• Experience scaling front-end applications in a fast-growing, high-traffic environment

• Deep understanding of frontend performance optimizations and ability to diagnose bottlenecks in React applications

• Strong product intuition with a track record of influencing UX/UI decisions to improve usability

• Background in data visualization and building interactive dashboards for analytics-heavy applications

• Experience with developer tooling and CI/CD pipelines for frontend applications

• Familiarity with modern API design patterns (GraphQL, REST, gRPC) and best practices in backend-for-frontend (BFF) architectures

• Contributions to open-source projects or a strong engineering blog presence

• Experience working in highly regulated industries (finance, insurance, government) with a focus on security and compliance

• A passion for improving healthcare and healthcare operations in America