ppFoxtrot Division is positioned at the forefront of cyber systems engineering, driven by a mission to create secure systems that empower our clients to excel in their endeavors. At the heart of our success are our people—our dedicated engineers and team members—whose expertise, creativity, and passion are the bedrock of our success. We understand that our strength lies in the collective spirit and the unique talents of our team, which is why we deeply value and invest in their growth and well‑being. Our mission is rooted in transcending the ordinary, a force that unites us and propels us forward. We are not content with business as usual; we are the rockstars of our industry, challenging the status quo, and setting the pace for innovation and excellence. Our DNA—thinking deeply, speaking boldly, leading by example, and striving to be great—defines us and our approach to everything we do. At Foxtrot Division, we are committed to leading the way, ensuring that our products, services, and team members are aligned with our core purpose. Through this alignment, we aim to leave a lasting, positive impact on the world, driving us further and faster toward our vision of excellence, with our people leading the charge. /p pWe are seeking a highly skilled and certified Sr Network Security Architect with a robust background in designing, configuring, deploying, managing, and enhancing network security architectures within complex and distributed enterprise environments. This role demands the capability to resolve intricate technical challenges both independently and collaboratively. This role will directly consult with and advise customer engineering leads on projects in architecture, administration, engineering, and operations for an array of solutions and platforms. Additionally, this position involves informing clients of best practices, identifying cost savings opportunities by integrating existing capabilities, and identifying opportunities to leverage emerging technologies for added value. /p h3Key Responsibilities /h3 ul liServe as the lead architect and subject matter expert (SME) for enterprise network security strategy, design, and implementation across on‑premises, hybrid,



and cloud environments. /li liDesign and implement zero trust architecture (ZTA) principles, including identity‑centric access controls, micro‑segmentation, continuous validation, and least‑privilege enforcement. /li liDevelop and maintain defense‑in‑depth architectures that integrate network, system, identity, application, and cloud security controls into a cohesive security posture. /li liLead secure network segmentation strategies (macro and micro‑segmentation) to reduce attack surface and lateral movement. /li liDefine and enforce network security standards, reference architectures, and technical baselines aligned to NIST, RMF, FedRAMP, and DoD security requirements. /li liProvide architectural oversight for a variety of network security technologies, including firewalls, IDS/IPS, NAC, DLP, SWG, WAF, DNS security, etc. /li liDesign secure connectivity solutions including VPN, SD‑WAN, ZTNA, policy‑based routing, dynamic routing (BGP/OSPF), and encrypted transport mechanisms (IPSEC). /li liCollaborate with external teams and mission partners to identify redundant systems, streamline security tooling, and implement consolidated solutions that improve efficiency and reduce operational costs. /li liLead proof of concept (POC) efforts, technical evaluations, and analysis of alternatives (AoA) for emerging security technologies. /li liGuide the transition of architectures from concept to production, ensuring scalability, resilience, and operational sustainability. /li liSupport authority to operate (ATO) efforts under NIST RMF, including implementation of NIST 800‑53 controls, security documentation artifacts, and system accreditation packages. /li liProvide expert‑level troubleshooting and conduct root cause analysis (RCA)



for complex security and network incidents. /li liLead complex network and security troubleshooting efforts, performing packet‑level analysis to diagnose issues across the full technology stack and drive rapid, root‑cause resolution. /li liMentor engineers and contribute to the development of internal best practices and architectural playbooks. /li /ul h3Required Qualifications /h3 ul liBachelor’s degree in computer science, engineering, information systems, cybersecurity, or related field (or equivalent experience). /li li8+ years of experience in network security engineering and architecture, including enterprise and federal environments. /li liDemonstrated experience designing and implementing zero trust and defense‑in‑depth architectures. /li liStrong understanding of NIST RMF, NIST SP 800‑53, FedRAMP, and DoD cybersecurity frameworks. /li liExceptional written and verbal communication skills with the ability to brief technical and executive stakeholders. /li liActive DoD security clearance. /li liCISSP, CCSP, CCNP/CCIE Security, or equivalent certification. /li liExperience supporting mission‑critical federal systems. /li liAuthorization to work in the United States. /li /ul h3Benefits and Perks /h3 ul liCompetitive salary, paid biweekly /li li$100 monthly reimbursement for cell phone and Internet /li li$3,000 yearly training budget /li liTop‑tier medical, dental, and vision insurance coverage /li liMedical, dental, and vision insurance premiums covered 100% by Foxtrot Division /li liGenerous PTO policy with 15 days of annual leave and 11 paid holidays /li liParental leave /li liOn‑the‑spot cash awards /li liFoxtrot Division sponsored events and activities /li /ul pWhy Foxtrot? We’re not just another security team. We’re problem‑solvers, innovators, and protectors of the customer’s mission. At Foxtrot Division, you’ll be empowered to make an impact, encouraged to explore smarter solutions, and supported by a team that values expertise as much as curiosity. Ready to protect the perimeter and push the boundaries? Join us on the front line of cyber defense! /p /p #J-18808-Ljbffr

📌 Sr. Network Security Architect (Barcelona)
🏢 Medium
📍 Barcelona