Senior Network Engineer | 100% Remote

We are looking for the very Top Talent…and we would be delighted if you were to join our team¿Todo listo para enviar su solicitud? Asegúrese de comprender todas las responsabilidades y tareas asociadas a este puesto antes de continuar. 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 30 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. You'll work with one of our main internacional clients in the finantial sector. Location: 100% Remote (Spain-based candidates only) Language: High level of English required 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). Work schedule 8-17 Monday/Friday What can we offer? 23 days of Annual Leave plus the 24th and 31st of December as discretionary days Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances). `Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…) Free access to several training platforms Professional stability and career plans UST also, compensates referrals from which you could benefit when you refer professionals. The option to pick between 12 or 14 payments along the year. Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…) UST Club Platform discounts and gym Access discounts If you would like to know more, don’t hesitate to apply and we’ll get in touch to fill you in detail. We are waiting for you In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate. xsgfvud Hay opciones de teletrabajo/trabajo desde casa disponibles para este puesto.