We're hiring a Senior Backend Engineer to design, build, and scale high-performance backend systems that protect governments and critical infrastructures.
Por favor, lea detenidamente la siguiente descripción del puesto para asegurarse de que encaja con el perfil antes de enviar su solicitud.
If Python is your home, C is your sharp tool, and you enjoy building systems that must never fail, keep reading.
~ About the company: Fast-growing cybersecurity company redefining digital security standards in the B2G (Business to Government) space. They tackle complex, high-stakes challenges with serious engineering and a clear purpose: building technology that contributes to a safer world.
~ Barcelona (100% on-site, by design)
~ Design, develop, and maintain scalable backend services using Python and C
Build and optimize microservices-based architectures, with a strong focus on performance, reliability, and security
Work with SQL and NoSQL databases (PostgreSQL, MongoDB) supporting mission-critical systems
Develop and deploy containerized applications using Docker
Collaborate closely with Frontend, DevOps, Research, and Product teams to deliver end-to-end solutions
Ensure high code quality through testing, code reviews, and engineering best practices
Own the full development lifecycle—from requirements to deployment and monitoring
5+ years of experience building scalable backend systems
~ Advanced proficiency in Python as a core backend language
~ Experience with Docker and containerized environments
~ Proficiency in SQL and NoSQL databases
~ Good knowledge of Linux-based systems
~ Excellent communication skills in English
~ Experience with DevOps practices or on-premise infrastructure
#What's in it for you?
Flexibility above this range for highly qualified candidates. xqysrnh
Private health insurance
Flexible working hours
Beautiful Barcelona office in Poblenou (fully on-site due to security requirements)
Fully stocked kitchen (coffee, organic fruit, snacks, drinks #127822;)
If you're looking for real impact, serious engineering challenges, and a cybersecurity product that protects what truly matters,this is your move.