Lead Ad Tech

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!

The role

This is a full-stack role with a strong backend focus (Ruby on Rails and Go), combining architecture design, hands-on development and people management.

You will work closely with Product, Data, Ad Operations and Sales to turn business needs into scalable, reliable systems that comply with European regulation (GDPR, IAB TCF).

Key Responsibilities

Team leadership

• Lead, mentor and grow a team of engineers, including 1:1s, continuous feedback and career development.
• Take part in hiring and onboarding new team members.
• Define and uphold engineering practices: code review, testing, CI/CD, documentation and on-call.
• Plan and prioritise the team's work with Product, balancing roadmap, technical debt and operations.

Technology and architecture

• Design and evolve the services in the advertising stack: ad serving, programmatic integrations (OpenRTB, SSPs/DSPs), ad insertion (VAST/VMAP, SSAI) and reporting.
• Build hands-on, mainly in Ruby on Rails and Go, and contribute to the frontend when needed.
• Ensure performance, low latency and high availability of high-traffic services.
• Make sure systems comply with GDPR and the IAB TCF in how consent and identity are handled.
• Make and document technical decisions, and act as the Ad-Tech reference for other engineering teams.