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# Principal Software Engineer, Full Stack

- **Company:** CAPSA HEALTHCARE
- **Location:** Portland, OR, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), .NET Framework, Amazon Web Services, C Sharp (Programming Language), Software as a Service, Cloud Engineering, Concurrent Computing, Continuous Integration, Data Deduplication, Software Debugging, Design of User Interfaces, Software Engineering, Data Streaming, TypeScript, ReactJS, State Machines, AI Coding Agents, Event Driven Architecture, Containerization, Kubernetes, Infrastructure Automation Frameworks, Low Latency, Apache Kafka, React Native, Front End Software Development, React Redux, Asynchronous Programming, React Testing Library, Restful APIs, Microservices
- **Published:** October 11, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pqfz95td2v

## About the Role

Advanced .NET, C#, and Microservices Architecture

 * Expert-level proficiency in .NET and C#, modern asynchronous programming, and designing, scaling, and troubleshooting production microservices with proven success in low-latency, high-throughput concurrent processing environments.

Event-Driven Systems and Messaging

 * Strong production experience with Kafka (or similar event-streaming platforms), MassTransit, sagas/state machines, and deep understanding of messaging patterns including delivery guarantees, ordering, idempotency, deduplication, backpressure, transactional outbox, and dead-letter handling.

Modern Frontend Development

 * Extensive hands-on experience with React.js, React Native, TypeScript, Redux Toolkit, Redux-Saga, REST API integration, responsive UI development, testing (Jest/React Testing Library), and browser-based performance and debugging tools.

Cloud-Native SaaS and Engineering Leadership

 * Experience building multi-tenant SaaS platforms using AWS, Kubernetes, containerization, infrastructure as code, CI/CD, OpenTelemetry, security best practices (including HIPAA considerations), and the ability to effectively leverage AI coding tools while communicating technical trade-offs to business and executive stakeholders., * A bachelor's degree in engineering or related field; a master's degree is a plus
 * 12+ years software engineering experience
 * 5+ years building distributed, real-time, or high-throughput systems