Note: The job is a remote job and is open to candidates in USA. NMI is a global payment technology company that provides payment solutions and infrastructure to software and sales professionals. NMI is seeking a Senior Software Engineer to develop and maintain FeeNavigator, a platform for automated merchant statement analysis and proposal generation, while contributing across the full software development lifecycle and collaborating with Product, engineering, and SRE teams.

Responsibilities

• Design, build, and enhance features within FeeNavigator using PHP/Laravel and Vue
• Develop efficient database queries and optimize MySQL performance as needed
• Own the quality of your work end-to-end through developer-led testing — writing unit, integration, and end-to-end tests, and validating your own changes through to production
• Improve the health of a large, established codebase by refactoring complex areas and decomposing high-complexity components into maintainable, well-structured code
• Document critical business logic, application workflows, and key architectural decisions
• Collaborate with Product Managers to refine requirements and contribute to technical solution design
• Participate in code reviews to maintain high engineering standards and share best practices
• Work with SRE to ensure software is observable, resilient, secure, and production-ready
• Diagnose and resolve incidents, defects, and performance bottlenecks in collaboration with cross-functional teams
• Contribute to continuous improvement of development processes, tooling, and engineering practices

Skills

• Bachelor's degree in Computer Science or equivalent experience
• 5+ years of experience developing complex applications
• Fluency in PHP and modern development practices
• Strong understanding of object-oriented programming and design patterns
• Experience with relational databases such as MySQL (schema design, query optimization)
• Experience with modern frontend development (JavaScript/TypeScript, Vue, npm, basic CSS/SCSS)
• Comfort working in large, established codebases — able to navigate unfamiliar systems, untangle complexity, and make sound changes with limited guidance
• Familiarity with secure coding principles
• Experience with Git and CI/CD workflows
• Experience contributing across the full SDLC
• Effective use of AI-assisted development tools, with the judgment to know where they add value and the discipline to review and validate their output
• Ability to work both independently and collaboratively
• Strong experience with Laravel or similar modern PHP frameworks
• Experience with the Vue ecosystem (Quasar, Pinia, Vite)
• Experience with containerization technologies (Docker)
• Experience with caching technologies (Redis, Memcached)
• Experience with AWS services (ECS, ECR, S3, SQS)
• Experience working with logging & monitoring systems (e.g., Sentry, New Relic)
• Understanding of cloud-native or SaaS architectures (scalability, resilience, multitenancy)
• Exposure to Python and ML-adjacent services (Flask, Pandas, scikit-learn)
• Experience integrating AI capabilities into applications, or building workflows that incorporate them
• Track record of raising engineering standards on a team — improving test coverage, reducing technical debt, or modernizing legacy code

Benefits

• Competitive salary + bonus
• A remote first culture!
• Flex PTO
• Health, Dental and Vision Insurance
• 13 Paid Holidays
• Company volunteer days

Company Overview