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 DOResponsibilities 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 NEEDRequired 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 DevOps Pipelines), and automated testing. Familiarity with Git-based version control and GitHub 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 and health systems, and is connected to over 5K commercial and Medicaid/Medicare payers. We are deeply committed to living out our organizational values: honesty; kindness; passion; curiosity; fanatical focus; best work, always; making it happen; and joyful, optimistic & fun.Waystar products have won multiple Best in KLAS or Category Leader awards since 2010 and earned multiple #1 rankings from Black Book surveys since 2012. The Waystar platform supports more than 500,000 providers, 1,000 health systems and hospitals, and 5,000 payers and health plans. For more information, visit waystar.com or follow @Waystar on Twitter. WAYSTAR PERKSCompetitive total rewards (base salary + bonus, if applicable)Customizable benefits package (3 medical plans with Health Saving Account company match)We offer generous paid time off for our non-exempt team members, starting with 3 weeks + 13 paid holidays, including 2 personal floating holidays. We also offer flexible time off for our exempt team members + 13 paid holidaysPaid parental leave (including maternity + paternity leave)Education assistance opportunities and free LinkedIn Learning accessFree mental health and family planning programs, including adoption assistance and fertility support401(K) program with company matchPet insuranceEmployee resource groupsWaystar is proud to be an equal opportunity workplace. We celebrate, value, and support diversity and inclusion. Qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, marital status, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.This applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.SummaryLocation: Louisville, KYType: Full time