Senior Backend Engineer (PHP/Rust migration)

• Senior-level experience developing backend systems in PHP, ideally within a LAMP-based architecture. • Strong experience working with MySQL and relational database design. • Experience maintaining and evolving large, long-lived codebases. • Solid understanding of Unix/Linux environments and server-based application development. • Experience debugging production systems and investigating complex data or processing issues. • Familiarity with automated testing practices and maintaining large test suites. • Experience working with message queues, logging systems, or asynchronous processing. • Ability to work independently while collaborating through code reviews and technical discussions. • Strong analytical skills and ability to learn complex technical and business domains. • Develop and maintain backend functionality in a PHP-based payment processing platform. • Contribute to the gradual migration of selected systems from PHP to Rust. • Troubleshoot production issues and perform data investigations when needed. • Participate in weekly production releases and help maintain stable deployment cycles. • Review code and collaborate with engineers to maintain code quality. • Support and evolve system observability through logging, monitoring, and debugging tools. • Work closely with the team to understand and maintain complex payment workflows tied to government systems.