Senior Full Stack Developer (Backend Focus) - Spanish: Native or Conversational

Product Engineering Remote (UTC\-3 to UTC\+2 preferred) Full time **What we do** -------------- publica.la is a B2B SaaS platform trusted by hundreds of publishers, bookshops, and libraries worldwide to power their digital content sales. Our multi\-tenant platform processes millions of transactions across 156 countries, managing digital libraries, subscriptions, and e\-commerce at scale. We're looking for a Senior Full Stack Developer with strong backend expertise to help us build and scale the core systems that power this growth. You'll work with Laravel/PHP, SingleStore, multi\-tenant architecture, and distributed systems. **What you will do** -------------------- * Design and develop new features for our multi\-tenant SaaS platform, with focus on backend services. * Build and maintain scalable Laravel applications with PHP, SingleStore, and Valkey/Redis. * Work with distributed SQL databases (SingleStore) and implement efficient multi\-tenant data isolation patterns. * Develop and optimize queue\-based background processing for content ingestion, payments, and analytics. * Collaborate with frontend developers on Livewire and Alpine.js integration. * Ensure code quality through testing (PHPUnit/Pest), static analysis (PHPStan), and code reviews. * Participate in architecture decisions and technical planning for platform scalability. * Work directly with customers to understand their needs and improve the product. * Maintain and improve existing features, ensuring platform reliability and performance. **Our stack** ------------- **Main focus:** PHP with Laravel, Livewire, Alpine.js, TailwindCSS, Laravel Nova, Valkey/Redis **Also in the project:** SingleStore, AWS Lambda, AWS S3, Cloudflare Workers, Docker, GitLab CI/CD **You might be a fit if you have** ---------------------------------- * 6\+ years of full stack development experience with strong backend focus. * Deep expertise in PHP and Laravel framework (at least 3 years with Laravel). * Strong SQL database knowledge. * Experience building and scaling multi\-tenant SaaS applications. * Solid understanding of queue\-based architectures and background processing. * Experience with testing frameworks (PHPUnit/Pest) and static analysis tools. * Native Spanish speaker or conversational\-level proficiency required. Strong written communication skills in English and Spanish (most of our communication is async and written). Portuguese is a plus. * Proactive mindset and ability to work effectively in a remote team environment. **Nice to have** ---------------- * Understanding of UX principles and ability to collaborate with designers. * Frontend experience with modern JavaScript frameworks and component\-based architectures. * Experience with SingleStore or other distributed SQL databases (TiDB, CockroachDB). * Livewire and Alpine.js development experience. * Laravel Nova administration panel experience. * Experience with AWS Lambda and serverless architectures. * Payment gateway