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

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., * 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.

• 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 integration experience (Stripe, MercadoPago).
• Experience with content processing pipelines (PDF, EPUB, audio files).
• Familiarity with SAML 2.0 and OAuth implementations.
• Experience with e-commerce platforms and subscription billing.
• Contributions to open-source Laravel packages or projects.

How we work

• 100% remote team working across different time zones.
• Async-first communication with clear written documentation.
• We value code quality, testing, and maintainability.

• Competitive salary in USD based on experience and location.
• 100% remote work with flexible hours.
• Flexible, results-based work structure.
• Collaborative, creative and dynamic work environment.
• Opportunity to work on an industry-leading digital publishing platform.
• Unlimited time off.
• Occasional team buildings, 100% paid by publica.la.
• Reimbursements for books purchased through our platform.
• Professional development opportunities within the company.