[Remote] Network Security/Firewall Operations Engineer (contract)

Note: The job is a remote job and is open to candidates in USA. Hilton is seeking a highly skilled and detail-oriented network security professional to join their enterprise security operations team. This role is central to maintaining the integrity, availability, and governance of firewall operations across a large, distributed environment, requiring collaboration with internal teams and vendors to ensure secure network connectivity.ResponsibilitiesReview firewall and network security requests through ServiceNow to validate business requirements, technical scope, source/destination/port details, environment information, and required supporting documentationReview firewall and security-related change records to confirm implementation plans, validation steps, backout plans, risk level, affected systems, approval status, and operational readinessSupport the review, creation, and maintenance of firewall connectivity templates for approved business solutions, ensuring requirements are clearly translated into actionable firewall rules and implementation guidanceTrack and manage firewall and security ticket backlogs by reviewing ticket status, identifying stale or pending items, preparing summaries, and coordinating follow-up with stakeholders, vendors, and support teamsSupport Cisco firewall management platforms and secure device connector operations, including platform health checks, connector configuration, credential updates, maintenance tasks, upgrade support, and operational troubleshootingAssist with firewall device migration, synchronization issues, credential failures, and platform visibility problems to help maintain accurate and reliable firewall managementTroubleshoot firewall connectivity issues using firewall management tools, packet-tracer analysis, firewall policy review, Splunk, and firewall log data to identify allowed, denied, or misrouted trafficCoordinate with internal teams, Cisco, managed service providers, and other vendors to resolve security platform issues, unreachable connector problems, access issues, and operational blockersSupport security platform access and SSO discussions, including role requirements, SAML attributes, AD group mapping, and access control expectationsMaintain operational documentation, process notes, review standards, and troubleshooting procedures to improve consistency, reduce repeat issues, and support knowledge sharing across the teamSkills2+ years experience supporting enterprise network security operations, with a focus on firewall request review, firewall rule validation, and security change management1+ years hands-on experience with Cisco firewall technologies and Cisco security management platforms such as Cisco Defense Orchestrator and Secure Device Connector, or similar centralized firewall management solutions1+ years experience reviewing firewall and security changes in ServiceNow or a similar ITSM platform, including request review, change review, approval validation, risk review, implementation planning, and backout planningStrong understanding of enterprise firewall operations, network segmentation, secure connectivity, remote access considerations, and managed firewall support modelsAbility to translate business connectivity requirements into clear firewall rule requirements, including source, destination, protocol, port, directionality, and supporting documentationExperience troubleshooting firewall access issues using firewall logs, packet-tracer tools, Splunk, and other observability or log analysis platformsAbility to manage backlog items, track ticket status, prepare operational summaries, and drive follow-up actions across multiple teamsStrong documentation skills, with the ability to create and maintain operational procedures, firewall review guidance, and troubleshooting runbooksStrong analytical, communication, and problem-solving skills, with the ability to support both daily operations and continuous improvement of firewall and security processesExperience coordinating with vendors, managed service providers, internal engineering teams, and business stakeholders to resolve firewall and security platform issuesCompany OverviewHilton is a hospitality company, owns luxury and full-service hotels and resorts, and focused-service hotels. It was founded in 1919, and is headquartered in Mclean, Virginia, USA, with a workforce of 10001+ employees. Its website is https://www.hilton.com/en/.