infraone ’s purpose is to protect the critical infrastructure modern life depends on—from factories that produce essential goods to utilities and water supply—by providing world-class cybersecurity and network services to manufacturing environments.
We deliver network and cybersecurity projects and maintain 24×7 support for leading manufacturers across Europe. Guided by the values of Ownership, Customers First, Trust, Ambition, and Excellence, we are building Europe’s leading OT-cybersecurity services firm.
As a Senior Network & Security Engineer you will join the Network & Security team supporting some of the largest pharmaceutical manufacturers in Europe.
Your mission is to ensure the design, administration and reliability of the network technologies that support production processes, from core IT services to industrial infrastructure. You will be part of a team responsible for maintaining the availability and robustness of networks that are critical to manufacturing continuity.
Drive the design, deployment, and integration of enterprise and industrial network solutions—firewalls, SASE, NAC, and switching—ensuring reliability, performance, and compliance with industry standards.
Act as a senior technical authority for complex network and security architectures, including segmentation, routing and switching, wireless, firewalls and secure remote access.
Provide expert-level (L3) support, root cause analysis, and remediation for critical network incidents.
Serve as a trusted technical advisor to clients,



guiding them in assessing risks, designing robust network architectures and planning network evolutions.
Mentor and support junior engineer conduct technical reviews, and foster knowledge-sharing within the team.
Identify emerging technologies, and methodologies to strengthen service delivery and develop new network services offerings.
Work closely with internal stakeholders and technology partners to deliver high-quality, end-to-end network solutions.
Future growth (mid-term): Develop the capability to independently manage projects, coordinate technical teams, and contribute to the growth of the Network & Security practice.
Higher education in Computer Science, Information Systems, or a related field
Hands‑on experience in Palo Alto, Fortinet, Cisco
Fluent English skills (spoken and written) and Spanish
Relevant technical certifications (CCNP, PCNSE, or similar)
Experience in industrial or manufacturing environments
German knowledge
Permanent contract with competitive salary
Hybrid Policy: 2 days at our amazing office in Paseo de Gracia
Projects with leading pharmaceutical companies and essential infrastructure operators
Opportunity to grow in a highly specialized team focused on IT and OT infrastructure
Training and certification support in the leading network and security technologies we work with — the technical team drives the adoption of cutting-edge solutions and gets trained and certified in them

📌 Senior Infrastructure Engineer - Network Services (Barcelona)
🏢 infraone
📍 Barcelona