[Hiring] Senior Software Engineer II @Waystar

Role Description

Design, develop, test, deploy, and maintain robust and scalable software applications and services on the Waystar Claims platform. You will work across C#/.NET microservices, event-driven messaging, cloud-native Kubernetes infrastructure, and SQL Server data tiers to deliver high-quality, high-performance healthcare revenue cycle solutions.

Qualifications

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
• 7+ years of professional software development experience with a proven track record of delivering high-quality software.
• Expertise in C# and .NET (both .NET 8 and .NET Framework); strong understanding of the .NET ecosystem and CLR.
• Strong understanding of data structures, algorithms, and object-oriented and SOLID design principles.
• Experience with SQL Server — schema design, stored procedures, query optimization, and performance tuning.
• Experience designing and building microservices and distributed systems using asynchronous, message-based architectures (e.g., RabbitMQ).
• Solid understanding of software development best practices including Agile methodologies, CI/CD (Azure DevOps Pipelines), and test-driven development (TDD).
• Experience with containerization and container orchestration: Docker, Kubernetes, and Helm chart authoring and deployment.
• Familiarity with Git-based version control and GitHub pull request workflows.
• Excellent problem-solving, analytical, and critical thinking skills.
• Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams.
• Ability to work independently and manage multiple priorities in a fast-paced environment.

Requirements

• Experience with Redis for distributed caching.
• Experience with Snowflake, Big Query, 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.

Benefits

• Competitive total rewards (base salary + bonus, if applicable).
• Customizable benefits package (3 medical plans with Health Saving Account company match).
• Generous paid time off for non-exempt team members, starting with 3 weeks + 13 paid holidays, including 2 personal floating holidays.
• Flexible time off for exempt team members + 13 paid holidays.
• Paid parental leave (including maternity + paternity leave).
• Education assistance opportunities and free LinkedIn Learning access.
• Free mental health and family planning programs, including adoption assistance and fertility support.
• 401(K) program with company match.
• Pet insurance.
• Employee resource groups.

Company Description

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.