Senior Full Stack Engineer - Cardio Partners - Remote

Company: Sarnova
Location: San Diego
Posted on: March 27, 2026

Job Description:

We are seeking a highly skilled Senior Full Stack Engineer to join our growing development team. In this role, you will help design, build, and maintain scalable, secure, and user-friendly web applications that support our nationwide emergency response and AED program management platforms. This role requires expertise in Ruby on Rails, React (2 years), and frontend UI development using ANT Design, along with deep experience in Azure Active Directory B2C (4 years), including Single Sign-On (SSO) integration. You’ll collaborate with product managers, designers, and engineers to deliver high-impact, mission-aligned solutions that help save lives. Remote based opportunity. Candidates must currently reside in the United States and have the ability to follow Eastern Time working hours. (8am - 5pm ET) Cardio Partners, a division of Sarnova, is a national leader in emergency prevention and a passionate advocate in the fight against Sudden Cardiac Arrest, which claims more than 350,000 lives each year. From AED sales and repair services to program management and CPR training, we support every facet of cardiac emergency preparedness. Trusted by over 32,000 customers worldwide, we empower organizations, first responders, and individuals with the tools and knowledge to save lives. We are seeking a highly skilled Senior Full Stack Engineer to join our growing development team. In this role, you will help design, build, and maintain scalable, secure, and user-friendly web applications that support our nationwide emergency response and AED program management platforms. This role requires expertise in Ruby on Rails, React (2 years), and frontend UI development using ANT Design, along with deep experience in Azure Active Directory B2C (4 years), including Single Sign-On (SSO) integration. You’ll collaborate with product managers, designers, and engineers to deliver high-impact, mission-aligned solutions that help save lives. Essential Duties and Responsibilities: • Develop and maintain secure, scalable full-stack applications using Ruby on Rails • Design intuitive, modern UI components using React and ANT Design, Hotwire Native or similar • Architect and implement Azure Active Directory B2C user flows, including SSO, MFA, OAuth, and OpenID Connect • Collaborate with internal stakeholders to define technical requirements and deliver application features that align with business needs • Contribute to design discussions, code reviews, and process improvements within an Agile environment • Develop and maintain RESTful APIs for system integrations • Design and implement scalable notification systems and configurable workflow engines to support proactive compliance management and reduce administrative overhead. • Write automated tests and contribute to CI/CD pipelines • Troubleshoot production issues and implement proactive monitoring and alerting solutions • Mentor junior engineers and collaborate with cross-functional teams to distribute technical ownership • Promote best practices and secure coding standards Skills/Experience Required: • 4 years of full-stack software development experience • Strong expertise in Ruby on Rails backend development • At least 2 years of hands-on development experience using React • Frontend experience working with ANT Design or similar component-based UI libraries • 4 years of experience implementing Azure Active Directory B2C, including SSO, OAuth, and OpenID Connect • Experience with HTML5, CSS3, JavaScript (ES6), and modern frontend workflows • Solid understanding of RESTful APIs and third-party integration patterns • Familiarity with Git-based version control and Agile project management tools (e.g., Jira, Confluence) • Experience writing automated tests (unit, integration, end-to-end) and ensuring high test coverage to support scalable, reliable applications • Excellent attention to detail and commitment to code quality Preferred Qualifications: • Knowledge of accessibility standards (WCAG) and secure application development practices • Exposure to test automation tools such as RSpec, Cypress, or Jest • Familiarity with PostgreSQL, MySQL or similar relational databases • Experience with cloud infrastructure management (e.g., Azure resource provisioning, monitoring, alerting) • Experience designing and implementing notification systems or workflow automation for compliance-driven applications • Experience with enterprise security practices, including SOC 2 Type 2 compliance, penetration testing, and vulnerability management programs • Knowledge of accessibility standards (WCAG) • Familiarity with IoT or hardware/firmware development, particularly for medical devices or connected systems • Experience with compliance-focused applications (HIPAA, FDA) • Experience in healthcare, medical devices, or public safety software development environments

Keywords: Sarnova, Malibu , Senior Full Stack Engineer - Cardio Partners - Remote, IT / Software / Systems , San Diego, California