Senior Backend Engineer (Python) – Cybersecurity

Description

Job Summary: We are seeking a senior-level candidate for a cybersecurity project, focused on the design, development, and optimization of Python-based backend solutions, with a key role in defining architectures and ensuring code quality and efficiency. Key Highlights: 1. World-leading cybersecurity company 2. Stability and continuity within a solid project 3. Opportunity for professional development in high technology DESCRIPTION You will join a project within a **world-leading cybersecurity company**, developing Python backend solutions in a technically demanding and highly specialized environment. This position targets a senior profile with proven experience, who will participate in the **design, development, and optimization of backend services**, using frameworks such as FastAPI, Flask, or Django, and applying best practices in development, testing, and automation. You will play a significant role in **defining backend architectures**, as well as ensuring code quality, efficiency, and security. The work environment emphasizes collaboration with other developers and technical teams, involving **technical coordination** and contributing to the evolution of developed solutions. This is an especially attractive opportunity for professionals seeking **stability and continuity** within a solid project backed by an established client in its sector—where you can further advance your technical career and deliver value in a high-tech context. Additionally, you will work with agile methodologies and modern development tools, in an environment that fosters teamwork, organization, and continuous improvement. **Work Modality** ------------------------ * **Hybrid model:** 60% remote / 40% on-site * **Work location:** Barcelona REQUIREMENTS ### **Technical (Mandatory)** * Bachelor's degree in Computer Engineering or related field * Minimum **5 years** of backend development experience with Python * Experience with frameworks: **FastAPI, Flask, or Django** * Advanced experience with **ORM** * Experience in **unit testing** and coverage tools * Experience in **continuous integration and automated deployment (CI/CD)** * Proficiency in **Git** and collaborative development * Ability to **design backend architectures** * Experience ensuring **code quality, efficiency, and security** * Experience in **technical coordination with other developers** * Minimum English level: **B2** ### **Technical (Desirable)** * Knowledge of **authentication and authorization** * Proficiency in **SQL** * Familiarity with **Java** * Experience with **event-driven architectures (Kafka)** * Knowledge or experience in **MLOps and artificial intelligence** * Experience with **GitLab and CI/CD pipeline construction** * Experience with **Scrum or Kanban** * Certifications in **Python, backend development, agile methodologies, or software quality** ### **Non-technical** * Strong analytical ability * Clear communication skills * Proactivity * Responsibility * Adaptability * Teamwork * Organization and planning