Senior Ad Tech Engineering Lead (Ruby/Go)

Titan Operating System; Barcelona; On-site; EUR 75,000 - 110,000; Full time

Benefits offered by this job

Central Barcelona office location

Private health insurance

Friendly, international team

Competitive compensation

Job summary

Titan OS, a Barcelona-based tech, entertainment and advertising company, is hiring a senior full-stack engineer with a strong backend focus. You will work with RoR and Go to build scalable, compliant systems and lead a growing team.

You will collaborate with Product, Data, Ad Operations and Sales to deliver reliable services while ensuring GDPR and IAB TCF compliance, and you will contribute to frontend work when needed.

Qualifications

• 5+ years as a software engineer with backend focus.
• Solid Ruby on Rails and Go production experience.
• 2+ years leading an engineering team.
• Experience designing APIs and high-perf distributed systems.
• Relational DBs (PostgreSQL/MySQL) and caching/queueing.
• English fluency; Spanish helpful.

Responsibilities

• Lead and mentor an engineering team; 1:1s and career development.
• Plan and prioritize work with Product; balance roadmap and debt.
• Design and evolve ad tech services (OpenRTB, SSAI, VAST/VMAP).
• Build mainly in RoR and Go; contribute to frontend when needed.
• Ensure low latency, high availability, and GDPR compliance.
• Set technical decisions and act as Ad-Tech reference.

Skills

Full-stack with backend focus

API design

Distributed systems

Relational databases

Frontend knowledge (JS/TS, React)

English proficiency

Tools

Ruby on Rails

Go

AWS

Docker

PostgreSQL

MySQL

Redis

Kafka

SQS

Job description

Titan OS, a Barcelona-based tech, entertainment and advertising company, is hiring a senior full-stack engineer with a strong backend focus. You will work with RoR and Go to build scalable, compliant systems and lead a growing team.

You will collaborate with Product, Data, Ad Operations and Sales to deliver reliable services while ensuring GDPR and IAB TCF compliance, and you will contribute to frontend work when needed.