1 Opening Madrid ### **Role description** **We are still looking for the very Top Talent…and we would be delighted if you were to join our team!** More in details, UST is a multinational company based in North America, certified as a Top Employer company with over 35\.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large\-scale technologic solutions to big companies. **What are we looking for?** We are looking for a **highly experienced Senior Network Engineer** with **12–15 years of expertise** in **cloud networking, routing \& switching, firewalls, and security compliance**. The ideal candidate will have in\-depth experience with **Cisco, Palo Alto, ForeScout, Infoblox, Check Point, and F5** technologies, along with a strong focus on **patching, firmware upgrades, vulnerability management, and compliance**. This role will be responsible for designing, implementing, and securing enterprise and cloud network infrastructures to ensure optimal performance, security, and regulatory adherence. **Key Responsibilities:** **Network \& Cloud Infrastructure Management** * **Design, deploy, and maintain** enterprise and cloud networking solutions across AWS, Azure, or GCP. * Manage **routing and switching environments** (Cisco, or equivalent) with expertise in **BGP, OSPF, EIGRP, VLANs, STP, QoS, and multicast**. * Optimize and maintain **load balancing solutions** (F5 LTM, GTM, iRules) for high availability and traffic distribution. * Administer **Infoblox DNS, DHCP, and IPAM** for efficient network resource management. **Firewall, Security, \& Compliance** * Configure and manage **firewall policies and security rules** on **Cisco ASA, Palo Alto, Check Point, and ForeScout**. * Implement **zero\-trust architecture, micro\-segmentation, and VPN solutions** for secure remote access. * Conduct **patching and firmware upgrades** on networking and security devices to maintain security compliance. * Perform **vulnerability assessments, remediation, and compliance checks** to align with industry security frameworks (ISO 27001, NIST, CIS benchmarks, PCI\-DSS, etc.). * Coordinate with security teams to **analyze threats, mitigate risks, and implement security best practices**. **Performance Optimization \& Troubleshooting** * Monitor **network performance, diagnose issues, and implement proactive solutions** to minimize downtime. * Troubleshoot complex **LAN, WAN, cloud, and firewall issues**, ensuring minimal disruption to business operations. * Work closely with vendors and internal teams to **optimize network security and reliability**. **Automation \& Documentation** * Utilize **automation tools (Ansible, Python, PowerShell, Terraform)** for network operations and cloud deployments. * Maintain **comprehensive documentation**, including network diagrams, firewall rules, and security policies. * Provide **technical mentorship** and knowledge sharing to junior engineers and IT teams. **Qualifications \& Experience:** * **12–15 years** of hands\-on experience in **network engineering, security, and cloud networking**. * Expertise in **routing \& switching (Cisco, Juniper) and firewalls (Palo Alto, Check Point, Cisco ASA, ForeScout)**. * Strong experience with **cloud networking (AWS, Azure, GCP), including VPCs, NSGs, VPNs, and load balancers**. * Hands\-on experience with **patch management, firmware upgrades, vulnerability scanning, and compliance enforcement**. * Proficiency in **F5 load balancers (LTM, GTM, ASM) and security hardening**. * Experience with **network automation (Python, Ansible, Terraform) and infrastructure as code (IaC)**. * Solid understanding of **security frameworks (NIST, ISO 27001, CIS, PCI\-DSS) and compliance policies**. * Excellent **troubleshooting skills** in enterprise and cloud networking environments. * Strong documentation and communication skills for **stakeholder engagement**. * **Certifications** such as **CCNP, CCIE, PCNSE, CCSA/CCSE, F5\-CA, AWS/Azure Networking Specialty, or CISSP** are preferred. **Preferred Skills:** * Experience with **SIEM tools, IDS/IPS, and endpoint security integration**. * Understanding of **Zero Trust Architecture, SD\-WAN, and micro\-segmentation**. * Familiarity with **network monitoring tools (SolarWinds, Logic Monitor, Big Panda, Splunk, Wireshark, etc.)**. * Knowledge of **container networking (Kubernetes, Docker, CNI)**. ### **Skills** network infrastructure,firewall,f5 firewall,network security, ### **About UST** UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future\-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.