Senior Backend Engineer - Go

Titan OS; Barcelona; Presencial; EUR 85.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Central Barcelona office

Private health insurance

International team

Competitive compensation

Career development

Descripción de la vacante

Titan Operating System S.L. (Titan OS) in Barcelona is seeking a Senior Backend Engineer - Go to design, develop and maintain scalable backend services powering our products.

You will work with front-end, DevOps and product teams to optimize performance, ensure security, and deliver robust APIs. 6+ years of backend experience, strong Go, SQL/NoSQL, and cloud with Docker/Kubernetes are required. Fluent English and excellent communication complete the profile.

Formación

• 6+ years of professional Backend engineering experience.
• Strong Go programming expertise.
• Experience with SQL and NoSQL databases.
• Cloud experience with AWS/GCP/Azure.
• Familiarity with containerization (Docker, Kubernetes).
• RESTful API design and third-party integrations.
• Security-focused with performance optimization.
• Bachelor’s degree preferred but not required.
• Fluent in English and strong communication.

Responsabilidades

• Design and build scalable Go backend services.
• Develop APIs for front-end and third-party integrations.
• Build and maintain databases with secure access.
• Collaborate with DevOps, front-end, and product teams.
• Ensure security and performance of server-side systems.
• Participate in code reviews and improve processes.

Conocimientos

Go

RESTful APIs

Databases SQL/NoSQL

Cloud platforms

Docker

Kubernetes

Security practices

Performance optimization

English communication

Educación

Bachelor's degree in Computer Science or related field

Herramientas

Docker

Kubernetes

PostgreSQL/MySQL

Descripción del empleo

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 Senior Backend Engineer - Go 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.

The backend is the backbone of our business, enabling seamless interactions between our customers and our platform. You will play a key role in building systems that scale efficiently as our user base grows and in integrating cutting-edge technologies to enhance our offerings. You'll be instrumental in architecting and delivering robust solutions that power the core functionality of our business. This role is for someone who thrives on solving complex problems and is driven by the desire to contribute to a high-impact product every day.

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
• Participating in code reviews and contributing to the continuous improvement of development processes

Requirements

• +6 years of professional experience as a Backend Engineer, working on large-scale systems
• Proficiency in Go
• 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
• Excellent problem-solving skills and attention to detail
• A Bachelor's degree in Computer Science, Software Engineering, or a related field is preferred but not required
• Strong communicator and fluent in English

Benefits

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