Role Description We are seeking an experienced Full Stack Principal Engineer to lead the design and development of scalable, high-performance applications. This senior role requires a hands-on technical leader who can architect solutions, mentor teams, and drive engineering excellence across our technology stack. Key Responsibilities - Technical Leadership: Architect and design complex full-stack applications and distributed systems - Hands-on Development: Write high-quality, maintainable code across frontend and backend technologies - System Architecture: Design scalable microservices architectures and data processing pipelines - Team Mentorship: Guide and mentor engineering teams on best practices, code reviews, and technical decisions - Cross-functional Collaboration: Work closely with product managers, designers, and stakeholders to deliver business objectives - Technical Strategy: Contribute to technology roadmap and architectural decisions - Performance Optimization: Identify and resolve performance bottlenecks across the full stack Qualifications - Backend Development - Backend API: Golang (Preferred) or Python: 5+ years of production experience building scalable backend services - Node.js: Experience building server-side applications and APIs with Node.js and Express/Fastify - Microservices Architecture: Design and implementation of distributed systems - API Development: RESTful APIs, GraphQL, and gRPC services - Elasticsearch: Experience with search indexing, query optimization, and cluster management - Data Processing: ETL pipelines, real-time data processing - Frontend Development - React: Advanced proficiency with modern React patterns, hooks, and ecosystem - JavaScript/TypeScript: Expert-level knowledge of modern JavaScript - UI/UX Implementation: Building responsive, accessible user interfaces - State Management: Redux, Context API, or similar state management solutions - Infrastructure - Cloud Platforms: AWS, GCP, or Azure - Containerization: Docker, Kubernetes - CI/CD: Build and deployment pipelines - Monitoring: Application performance monitoring and logging - Experience & Leadership - 10+ years of full-stack development experience - 3+ years in a senior or lead engineering role - Excellent problem-solving and analytical skills - Proven track record of architecting and delivering large-scale applications - Experience with high-traffic, distributed systems - Strong background in agile development methodologies - Strong communication and leadership abilities - Experience mentoring junior and mid-level engineers - Ability to work in a fast-paced, collaborative environment Nice to Have - Infrastructure as Code (Terraform, CloudFormation) - Networking protocols and concepts (TCP/IP, HTTP/2, WebSockets, load balancing) - Testing frameworks and methodologies - Security best practices and implementation Education - Bachelor's or Master's degree in Computer Science, Engineering, or equivalent experience Requirements - The annual base salary range for this full-time position is $240,931-$283,448 + benefits + 401(k) match + equity and is bonus eligible. - The pay range is determined by the role, work location, job-related skills, level, experience, and relevant education. - The range displayed is applicable only for new hires for the listed position located in the US. Benefits - US: We cover 100% of employee premiums and 88% of dependent(s) premiums for medical, dental and vision coverage, 401(k) match, short and long-term disability, life/AD&D insurance, $1,000/year education reimbursement, and a flexible vacation policy. - Outside the US: We offer a comprehensive benefits package which, (subject to regional variations) could include pension, private medical for you and dependents, generous holiday allowance, life assurance, long-term disability, annual wellbeing stipend.

• Develop and maintain backend services using Node.js • Contribute to frontend development using ReactJS, TypeScript, and JavaScript • Assist with the implementation of RESTful APIs • Support CI/CD processes, including automated builds, testing, and deployment • Write unit and integration tests following Test-Driven Development (TDD) principles • Participate in debugging and basic performance tuning activities • Document technical specifications and maintain clear, up-to-date system documentation • Collaborate in a paired programming environment and leverage AI-assisted tools for code generation, refactoring, and test creation • Integrate systems using HL7 v2.x, FHIR, and integration engines (e.g., Rhapsody)

• Design, develop, and maintain backend services using Node.js, supporting scalable, event-driven workflows • Lead implementation of RESTful APIs that meet performance, reliability, scalability, and security requirements • Contribute to frontend development using ReactJS, TypeScript, and JavaScript as needed • Apply and promote secure software development practices, including threat modeling, input validation, secure data handling, and dependency management • Build, maintain, and improve CI/CD pipelines to enable rapid, secure, and reliable deployments • Write and maintain unit, integration, and end-to-end tests, advocating for TDD and high-quality engineering standards • Troubleshoot complex production issues, perform root-cause analysis, and optimize system performance and reliability • Provide technical guidance and mentorship to other engineers through collaboration and knowledge sharing • Partner with technical leads, architects, and cross-functional teams to align implementation with platform standards and product objectives • Serve as a technical subject-matter resource and contribute to engineering best practices and continuous improvement initiatives • Leverage AI-assisted development tools to improve productivity, code quality, and documentation

• Scope, design, and build scalable, resilient distributed systems. • Build product definition and leverage your technical skills to drive towards the right solution. • Engage in cross-functional collaboration throughout the entire software lifecycle. • Lead in design sessions and code reviews with peers to elevate the quality of engineering across the organization. • Define, create, and support reusable application components/patterns from a business and technology perspective. • Utilize programming languages like Python, C# or other object-oriented languages, SQL, and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of Azure tools and services. • Mentor other engineers. • Consistently share best practices and improve processes within and across teams.