SO LEAN is a seasoned backend PHP development firm and an AFUP member for eight years. We collaborate closely with product teams, SaaS publishers, and businesses seeking senior PHP developers to build, enhance, or rejuvenate their technical foundations. Our expertise encompasses PHP/Symfony backends, REST APIs, and legacy applications with rich histories. We specialize in developing and advancing PHP/Symfony backends and REST APIs, modernizing legacy Symfony systems through version upgrades and gradual debt reduction, and implementing robust software architectures such as hexagonal, DDD, and clean architecture. Additionally, we facilitate cloud migrations using AWS services like Lambda and ECS, establish TDD, functional testing, and CI/CD processes, and perform technical audits and team support. Our commitment to code quality, testability, and reliable delivery remains unwavering.