Full Stack Developer

Is this you?

Titan Operating System S.L. (Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you!

Our platform combines content discovery and advertising technology in one solution, helping leading TV brands unlock greater value. Titan OS powers devices from major brands including Philips, AOC and JVC, reaching millions of viewers across Europe and LATAM. Titan OS is also powering free premium FAST Channels on selected SONY Android TVs.

Over the last two years, Titan OS has grown revenue 10x and attracted leading investors, including Highland Europe and Mangrove.

At TitanOS, we live by three core values:

• Make things happen - We take ownership, move fast, and deliver impact
• No ego - We collaborate with respect and humility to reach shared goals
• Show genuine passion - We love what we do and never stop learning

Culture and environment are at the heart of our ethos. If the above resonates with you, keep reading because we believe you could be a perfect addition to our incredible team!

Role Overview:

As a Full-Stack Developer, you will help maintain and grow our advertising platform, which is developed and hosted on Replit. You'll work across the whole stack, from the React front end to the Node.js API and PostgreSQL database. You'll help keep a live production system secure and reliable while delivering new features and integrations.

Key Responsibilities

• Design, code, test, maintain and deliver features across the React front end and the Node.js/Express API
• Build and maintain integrations with third-party APIs and services
• Investigate and fix production bugs, find the root cause and prevent regressions
• Maintain authentication and access control built on Supabase
• Write and run database schema changes and migrations with Drizzle ORM, safely and without data loss
• Write and maintain automated tests with Vitest, Playwright and Node.js tests
• Keep the platform secure: dependency updates, secrets management, input validation and access control
• Manage deployments, environments and releases on Replit
• Document code and technical decisions so the platform stays easy to maintain