Software Engineer II

ABOUT THIS POSITIONDevelop, test, deploy, and maintain software applications and services on the Waystar Claims platform. You will contribute to C#/.NET microservices, event-driven messaging, and SQL Server data tiers, working alongside senior engineers and architects to deliver reliable, high-quality healthcare revenue cycle solutions.

WHAT YOU'LL DO Responsibilities Develop, test, deploy, and maintain software applications and services using C#/.NET. Collaborate with product owners, architects, and teammates to understand requirements and deliver well-scoped technical solutions. Write clean, efficient, well-documented, and maintainable code adhering to Waystar's coding standards and best practices. Participate in code reviews, giving and incorporating constructive feedback to maintain code quality. Troubleshoot and debug software issues, identifying root causes and implementing effective solutions.

Contribute to the continuous improvement of Waystar's software development processes and tooling. Develop and maintain automated tests (unit and integration) to ensure software reliability and stability. Monitor application behavior using Splunk and other observability tools; surface and escalate performance concerns. Stay current with emerging technologies and industry trends, applying new approaches within your area of work. Participate in technical design discussions for new features, contributing implementation-level insights.

WHAT YOU'LL NEED Required Qualifications Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent practical experience). 3–5 years of professional software development experience with a track record of delivering production-quality software. Proficiency in C# and .NET (both .NET 8 and .NET Framework); solid understanding of the .NET ecosystem. Solid understanding of data structures, algorithms, and object-oriented design principles.

Experience with SQL Server — writing queries, stored procedures, and understanding basic schema design. Experience working within microservices and distributed systems that use asynchronous, message-based architectures (e.g., RabbitMQ). Working knowledge of software development best practices including Agile methodologies, CI/CD (Azure Dev Ops Pipelines), and automated testing. Familiarity with Git-based version control and Git Hub pull request workflows. Good problem-solving, analytical, and critical thinking skills.

Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams. Ability to manage your own tasks and priorities with guidance in a fast-paced environment. Nice to Have

Experience with containerization technologies such as Docker and Kubernetes. Familiarity with Helm chart-based Kubernetes deployments.

Experience with Redis for distributed caching.

Experience with Snowflake or similar cloud data warehouse technologies. Familiarity with structured logging and observability tools such as Splunk. Knowledge of X12 EDI healthcare transaction standards (837 claim submission, 835 remittance advice, 270/271 eligibility inquiry/response). Knowledge of healthcare IT standards (e.g., HL7, FHIR) or prior experience in the healthcare revenue cycle industry. ABOUT WAYSTARThrough a smart platform and better experience, Waystar helps providers simplify healthcare payments and yield powerful results throughout the complete revenue cycle.

Waystar’s healthcare payments platform combines innovative, cloud-based technology, robust data, and unparalleled client support to streamline workflows and improve financials so providers can focus on what matters most: their patients and communities. Waystar is trusted by 1M+ providers, 1K+ hospitals…