Senior Software Engineer (PHP)

NMI

7h•CA$95,000 - CA$120,000•Remote

About The Position

NMI is looking for an experienced Senior Software Engineer (Full-Stack) to join their Fee Navigator team, which is part of the Account Management & Signup Tools value stream. FeeNavigator is a platform designed to automate the analysis of merchant statements and the generation of proposals. It can process statements in various formats, classify fees, calculate markups and potential savings, and produce a proposal ready for signature within seconds. This platform significantly reduces the time previously spent by analysts on each statement and is crucial for how NMI's partners acquire and retain merchants. This role is suited for a skilled engineer capable of managing complex systems, tackling challenging engineering problems, and working autonomously within a collaborative, agile team environment.

Requirements

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.

Nice To Haves

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.

Responsibilities

Design, build, and enhance features within FeeNavigator using PHP/Laravel and Vue.
Develop efficient database queries and optimize MySQL performance.
Own the quality of work end-to-end through developer-led testing, including unit, integration, and end-to-end tests, and validating 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 the continuous improvement of development processes, tooling, and engineering practices.