> Markdown version of [/jobs/ext/3710086-senior-php-engineer-checkout-pre-confirmation-all-genders](https://www.wearedevelopers.com/jobs/ext/3710086-senior-php-engineer-checkout-pre-confirmation-all-genders). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior PHP Engineer - Checkout - Pre-Confirmation (all genders) - **Company:** About You - **Location:** Hamburg, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, PHP (Programming Language), Application Programming Interfaces (APIs), Automation of Tests, Relational Databases, Database Queries, DevOps, Enterprise Architecture Framework, Monitoring of Systems, Laravel, PostgreSQL, MySQL, Redis, Swagger, Symfony, Openapi, Software Troubleshooting, Caching, Backend, Git, Containerization, Gitlab-ci, Kubernetes, Restful APIs, Amazon Simple Queue Service (SQS), Docker, Microservices - **Published:** October 13, 2026 - **Apply:** https://startup.jobs/senior-php-engineer-checkout-pre-confirmation-all-genders-about-you-se-co-kg-10412121 ## About the Role * 6+ years of backend development experience with senior-level ownership * PHP 8.x mastery using Laravel, Symfony, or modern enterprise frameworks * Relational database & caching skills (MySQL, PostgreSQL, Redis) * API & microservice design with OpenAPI/Swagger standards * Asynchronous processing experience using SNS/SQS * Containerization & CI/CD workflow knowledge (Docker, Git, GitLab CI) * Fluent English with transparent, solution-oriented communication Nice To Have: * Background in e-commerce, checkout flows, or payment processor integrations. * Experience with cloud platforms, Kubernetes, and application observability/monitoring tools. ## Description * Design and maintain scalable RESTful APIs and microservices (PHP/Laravel/Symfony) powering the checkout experience * Build event-driven pipelines using AWS SNS/SQS for asynchronous payment, order, and inventory processing * Optimize database queries (MySQL/PostgreSQL) and Redis cache layers to handle massive traffic spikes smoothly * Write automated tests, review pull requests, and advocate for sustainable architecture and clean code * Collaborate daily with product, QA, and DevOps teams to deliver high-impact improvements in short sprints * Troubleshoot complex technical issues and balance long-term code health with pragmatic product delivery