Top Senior PHP Developer Jobs in Washington, DC

Remote senior PHP developer role building fintech solutions. Work in a team using PHP 8 and Laravel 8 (or Symfony), integrate external services, design and optimize SQL databases, write unit/integration tests with PHPUnit, and use Linux/CLI. Emphasis on PSR, OOP, SOLID and common design patterns; Docker, GitLab CI, and composer experience are a plus.

Design, build, and maintain FeeNavigator features across backend and frontend. Optimize MySQL queries, write unit/integration/end-to-end tests, refactor complex code, document architecture, participate in code reviews, collaborate with Product and SRE, diagnose incidents and performance issues, and contribute to development process improvements.

Build and maintain backend systems for a large-scale community platform: design APIs, improve performance and scalability, ship well-tested features, triage production issues, mentor engineers, and help define AI-assisted development practices and architecture.

The Lead Back-End Developer will oversee backend development initiatives, mentor the backend team, and collaborate with frontend teams to ensure robust backend infrastructure and optimal user experience.

The Senior Back-End Developer will lead backend initiatives, mentoring a team, developing infrastructure with PHP and Laravel, and optimizing technology.

Seeking a Senior Full Stack Developer to produce scalable software for e-commerce. Responsibilities include developing applications, maintaining code, collaborating with teams, and managing software solutions.

Develop scalable software solutions as part of a cross-functional team, handling both front-end and back-end tasks for e-commerce projects.

The PHP Developer will design and architect web applications using the LAMP stack, collaborate with teams, optimize performance, ensure security, mentor junior developers, and conduct code reviews.

The Sr Software Developer will create scalable software solutions, lead projects through the development life cycle, mentor team members, and adapt to changing priorities in an Agile environment.

The Senior Backend Engineer will maintain a PHP-based payment platform, migrate to Rust, troubleshoot production systems, and contribute to code quality and deployment cycles.