Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you We are looking for a Senior Backend Engineer with a deep understanding of server-side technologies and a passion for building highly scalable systems that power industry-leading applications. You will be responsible for designing, developing, and maintaining the backend infrastructure that drives our products and services, ensuring they are secure, reliable, and performant.

Key responsibilities
- Designing and developing highly scalable backend services and APIs to support front-end applications and third-party integrations.
- Building and maintaining databases, ensuring data is stored securely and can be accessed efficiently.
- Collaborating with front-end developers, DevOps, and product teams to define and implement new features.
- Optimising the performance and reliability of server-side code to ensure seamless user experiences.
- Ensuring the security of backend systems through the implementation of best practices and security protocols.
- Writing clean, maintainable, and well-documented code, adhering to industry standards and team best practices.
- Monitoring and troubleshooting production systems,



ensuring high availability and rapid response to issues.
- RequirementsWhat makes you a great fit:
- +7 years of professional experience as a Backend Engineer, working on large-scale systems.
- Proficiency in Ruby on Rails.
- Strong knowledge of database systems (SQL and NoSQL), with experience in designing efficient data architectures.
- Experience with cloud platforms like AWS, GCP, or Azure, and familiarity with containerization tools like Docker and Kubernetes.
- Solid understanding of RESTful API design and development, including experience integrating third-party services.
- A strong focus on performance optimization, scalability, and security.
- A Bachelor's degree in Computer Science, Software Engineering, or a related field is preferred but not required.
- 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.
- 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.

📌 Backend Senior Developer Ruby on Rails H/F (España)
🏢 Titan OS
📍 España