Senior Software Engineer

At Waystar, our Specialist Application Engineers design and build scalable, high‑performance solutions that power critical healthcare technology. In this role, you’ll focus on Java‑based backend development, partnering closely with Product, QA, and Engineering to deliver reliable, maintainable systems used at enterprise scale. You’ll play a key role in designing robust services and APIs, improving application performance, and modernizing legacy systems—all while helping elevate engineering standards across the organization. If you love clean code, thoughtful architecture, and solving complex problems with elegant solutions, we’d love to meet you. WHAT YOU'LL DO Design, architect, and develop complex Java‑based enterprise applications Build and maintain RESTful APIs, business logic, and integration components Review code to ensure quality, security, and adherence to engineering standards Partner with cross‑functional teams to translate business requirements into technical solutions Troubleshoot and resolve defects, performance issues, and production incidents Refactor and modernize legacy systems to improve scalability, reliability, and maintainability Contribute to technical designs, documentation, and architectural decisions Support deployment and release activities in collaboration with QA and Product teams Evaluate emerging technologies and industry trends to improve engineering practices Estimate work, track progress, and provide clear status updates using internal tools Mentor junior engineers and promote a culture of learning, feedback, and craftsmanship WHAT YOU'LL NEED Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience) 5+ years of professional Java development experience Strong expertise in Java 8+, Spring / Spring Boot, and Hibernate / JPA Solid understanding of object‑oriented design, design patterns, and software architecture Experience designing and implementing RESTful APIs Hands‑on experience with SQL databases (e.g., PostgreSQL, MySQL, or SQL Server), including performance tuning Proficiency with unit testing frameworks such as JUnit and Mockito; TDD experience preferred Familiarity with Git and modern version control workflows Ability to work effectively in an agile, fast‑paced environment—both independently and collaboratively Strong written and verbal communication skills Proven ability to solve complex problems with pragmatic, maintainable solution AI & Continuous Improvement Actively use AI‑powered tools to improve productivity, code quality, and decision‑making Leverage AI platforms to streamline workflows and drive innovation Demonstrate curiosity and adaptability in exploring emerging AI technologies ABOUT WAYSTAR 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. WAYSTAR PERKS 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: 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 EEO STATEMENT Waystar 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. #J-18808-Ljbffr