Senior Software Engineer

Responsibilities

• 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

Requirements

• 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
• Through a smart platform and better experience, Waystar helps providers simplify healthcare payments and yield powerful results throughout the complete revenue cycle.
• WAYSTAR PERKS
• Competitive 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 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
• T

Benefits

Additional Information

ABOUT THIS POSITION 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.

Your Match

How well this role fits your profile.

Company Intel

What employees say

Worked at waystar? Share your experience