Senior Full-Stack Software Engineer – Backend-Focused
Paytient
full-time
Posted on:
Location Type: Remote
Location: Montana • United States
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Job Level
About the role
- Collaborate with product managers, designers, and engineers to build scalable, reliable backend systems that power our core financial and data ecosystems, with frontend contributions as needed.
- Lead backend development using Java/Spring Boot or Kotlin to build robust systems for payroll deductions, payment processing, and automated invoicing, while contributing to our React frontend when the work requires it.
- Write clean, maintainable, and well-tested backend code that balances performance with the high level of accuracy required for census data management and subscription billing.
- Lead initiatives and own complex backend projects, such as architecting seamless payment integrations or scaling our subscription management engine, from concept through delivery.
- Influence backend architectural decisions and contribute to a long-term technical strategy that ensures data integrity across our payroll and financial reporting pipelines.
- Drive engineering excellence by authoring clear technical documentation, including RFCs and ADRs for new architectural patterns, and maintaining up-to-date runbooks to ensure our systems remain reliable and easy to operate.
- Leverage AI assisted development tools to accelerate delivery, optimize workflows, and enhance code quality, while maintaining a critical eye for security and best practices.
- Participate in code reviews and technical discussions, ensuring our systems handle complex business logic (like deduction calculations) with precision and security.
- Provide technical mentorship and guidance to other engineers, fostering a culture of excellence in healthcare and financial engineering.
- Work in a modern, cloud-native environment leveraging infrastructure-as-code and CI/CD pipelines to support rapid, high-quality delivery of mission-critical financial features.
Requirements
- 5+ years of professional experience with a proven track record of technical impact and leadership, with a strong emphasis on backend systems.
- Strong problem-solving skills, curiosity, and the ability to navigate complex challenges in high-stakes financial environments.
- Deep experience with Java, Spring Boot, or Kotlin is required - this is the core of what you'll do. Experience with or interest in React for occasional fullstack contributions is a plus.
- An AI-forward mindset, with experience using AI assisted development tools (like GitHub Copilot, Claude Code, or OpenCode) to streamline workflows, refactor code, and accelerate problem-solving.
- Comfort working in a cross-functional environment, collaborating closely with Product, Design, Compliance, Support, and Operations.
- A history of building features for complex, high-scale backend systems, with exposure to user-facing web or mobile applications.
- Strong communication skills and the ability to work effectively in a remote or hybrid setting, including the ability to write clear, concise technical documentation.
- Preferred: Experience in Fintech, Healthcare, HRIS, or Benefits Administration (specifically dealing with payroll, census data, or tax logic).
- Bonus: Experience working in regulated industries within security and compliance frameworks like SOC 2 and HITRUST.
Benefits
- Medical, dental and vision insurance
- $4,400 annual HSA contribution
- Paytient Health Payment Account (HPA)
- Monthly lifestyle spending stipend
- Five weeks of annual PTO
- Week-long fully paid 'summer break' for all employees!
- Ten weeks of bonding leave for new parents
- Two weeks of caregiver leave
- Employer paid short-term and long-term disability
- 401k plan access with a 4% employer match
- Stock options in Paytient
- ...and more!
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
JavaSpring BootKotlinReactAI assisted development toolsinfrastructure-as-codeCI/CD pipelinesbackend developmenttechnical documentationcensus data management
Soft Skills
problem-solvingcuriositycommunicationmentorshipcollaborationleadershipattention to detailadaptabilitytechnical influenceteamwork