We’re hiring a Senior Backend Engineer to design, build, and scale high-performance backend systems that protect governments and critical infrastructures.
- 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.
- Location: Barcelona (100% on-site, by design) | Poblenou
- Salary range: up to 85k (depending on seniority)

What you’ll do
- Design, develop, and maintain backend services using modern technologies
- Work with SQL and NoSQL databases
- Develop and deploy containerized applications using Docker
- Implement and maintain microservices architecture
- Improve and debug an already running system to ensure stability and performance
- Optimize system performance and troubleshoot production issues
- Collaborate with Frontend developers, DevOps, and other stakeholders to deliver high-quality solutions




- Ensure high-quality code standards and enhance code quality through testing and peer reviews
- Take ownership of end-to-end development processes, including requirement analysis, design, implementation, testing, and deployment

What we’re looking for
- 5+ years of experience in backend development, with a proven track record of delivering high-quality, scalable solutions
- Strong, hands-on programming skills with a focus on Python
- Experience with internal OS development
- Familiarity with DevOps practices and on-prem infrastructure is a plus. Experience with microservices architecture
- Strong understanding of system architecture principles, with the ability to design and maintain efficient, scalable backend systems
- Proficiency in both SQL and NoSQL databases (e.g., PostgreSQL, MongoDB)
- Hands‑on experience with Docker for containerization
- Working knowledge of Linux OS
- Ability to work independently and take ownership of tasks from start

📌 Senior Backend Engineer | Python | Barcelona
🏢 Talent-R
📍 Barcelona