Frontend Engineer Lead

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

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:

We are looking for a Frontend Lead Developer to define and drive the vision for building Smart TV UI, where performance, stability, and smooth UX are critical. You will work alongside our squads to shape the architectural framework of our applications, code intricate frontend components, and orchestrate the deployment of the final product that is seen in millions of homes worldwide.

Key responsibilities:

• Define and drive the Frontend team’s technical vision to deliver a world-class user experience across the Titan OS frontend..
• Build and optimize UIs for Smart TV platforms
• Write clean, sustainable, and testable code
• Improve architecture and coding standards in the frontend
• Enforce the implementation of unit, integration, and end-to-end tests to ensure reliability
• Focus on performance, fast rendering, low memory consumption, and responsive navigation
• Debug and profile apps on limited resource environments such as Smart TVs, set-top boxes
• Ensure projects are delivered on time and developers are working effectively
• Participate and assist in setting the long-term direction, roadmaps, and standards for the web app
• Conduct code reviews of work done by other engineers in the team

Work with backend engineers, product managers, and UX designers to deliver polished features Establish and track SLAs (internal and external), and support squads in defining KPIs and team objectives

What makes you a great fit:

7+ years of relevant experience with React and Redux (internal patterns, performance tuning) Strong knowledge of JavaScript, TypeScript, and modern frontend tooling Solid experience with testing frameworks (Jest, React Testing Library, Cypress/Playwright…) Experience optimizing rendering performance on constrained devices (TVs, consoles, mobile, etc) Strong debugging skills and ability to troubleshoot performance bottlenecks Desirable skills Experience developing web apps for Smart TVs Familiarity with video playback (HLS.js, Shaka Player), DRM, or streaming apps Knowledge of Service Workers, Web Workers, and caching strategies for performance and resilience

Hiring process:

Meet our Talent Acquisition team Conversation with the VP of Engineering Technical assessment Pair Programming review with team members

Reasons to apply:

Centrally located office in the heart of Barcelona, with public transportation nearby Competitive compensation Private health insurance Friendly, diverse, and international work environment

• Opportunity to work outside of your comfort zone and develop professionally in an exciting and fast-growing CTV industry.
• Change the future of TV! A unique opportunity to join a well-funded, high-growth company in the early stages to help shape a product/business that will impact millions.
• If you're excited about this position, don’t hesitate to apply. We’re waiting for you to join us! And if you want to know more about us, follow us on LinkedIn!