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Jobs/Software Engineer Role/Paytient - Senior Full-Stack Software Engineer (Backend-Focused)
Paytient

Paytient - Senior Full-Stack Software Engineer (Backend-Focused)

Columbia, MO or Remote - Hybrid+ Equity4w ago
In OfficeSeniorNAFintechPaymentsSoftware EngineerSenior Full Stack DeveloperJavaSpring BootKotlinReactClaude

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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. • If you're excited to tackle interesting backend engineering challenges, build meaningful products, and grow your career, we'd love to hear from you!

Responsibilities

• 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.

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

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