{"schemaVersion":"jobsearcher.job.v1","id":"34bad3dd8d95b37e69de3728","url":"https://jobsearcher.com/jobs/34bad3dd8d95b37e69de3728","canonicalUrl":"https://jobsearcher.com/jobs/34bad3dd8d95b37e69de3728","title":"Sr. Linux System Engineer","description":"***5 Days Onsite******We are unable to sponsor as this is a permanent full-time role***A prestigious company is looking for a Sr. Linux System Engineer. This is with a trading company, and this engineer needs previous industry experience in trading. The role is focused on Linux system administration, networking, scripting, etc.ResponsibilitiesAdminister the firm’s Linux server fleet, including provisioning, patching, package management and storagePerform performance tuning, capacity planning, log analysis, and root-cause analysis on Linux hostsAdminister NFS storage on Linux: export configuration, client mounts, permissions, quotas, performance tuning, and troubleshootingAdminister the firm’s Microsoft 365 tenant, including Entra ID (Azure AD), Exchange Online, Teams, SharePoint Online, and OneDriveConfigure and maintain Intune / endpoint management policies for Windows devicesMaintain mail flow, anti-spam, anti-phishing, retention, and data-loss-prevention policiesAdminister the firm’s network infrastructure: switches, routers, firewalls, VPN, VLANs, and wirelessManage core network services including DNS, DHCP, NTP, and certificate infrastructureMonitor network performance, troubleshoot connectivity and latency issues, and coordinate with carriers, ISPs, and market-data vendors as neededImplement and maintain network segmentation, ACLs, and firewall rules aligned with the firm’s security policyOwn the end-to-end identity lifecycle: onboarding, offboarding, role changes, and periodic access reviews across Linux, Windows, and M365Manage SSO, MFA, password policies, and privileged-access controlsAdminister access to internal applications, file shares, mailing lists, and shared mailboxesRun monitoring, alerting, and on-call/incident response for infrastructure and end-user systemsManage workstation and laptop imaging, deployment, and full hardware lifecycleMaintain technical documentation, runbooks, and disaster-recovery proceduresQualificationsBachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field5+ years of experience in systems engineering, infrastructure engineering, site reliability engineering, or technical operationsDeep expertise administering Linux environments across multiple distributionsStrong experience with scripting and automation using Python, Bash, or similar languagesExperience within proprietary trading, hedge funds, market making, fintech, or other low-latency environmentsStrong understanding of networking fundamentals including TCP/IP, multicast, routing, switching, and performance troubleshootingFamiliarity with configuration management and orchestration tools such as Ansible, Kubernetes, Docker, or similar platformsExperience with monitoring and observability platforms such as Prometheus, Grafana, Nagios, Icinga, InfluxDB, or similar toolsStrong troubleshooting and problem-solving skills with the ability to operate independently under pressure","company":"Request Technology","rawCompany":"request technology","city":"Shorewood","state":"IL","isRemote":false,"isActive":false,"createdAt":"2026-06-17T02:57:34.386Z","occupations":[{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"},{"code":"15-1231.00","title":"Computer Network Support Specialists","slug":"computer-network-support-specialists"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541519","title":"Other Computer Related Services","slug":"other-computer-related-services"},{"code":"518210","title":"Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services","slug":"computing-infrastructure-providers-data-processing-web-hosting-and-related-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Sr. Linux System Engineer","description":"***5 Days Onsite******We are unable to sponsor as this is a permanent full-time role***A prestigious company is looking for a Sr. Linux System Engineer. 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The role is focused on Linux system administration, networking, scripting, etc.ResponsibilitiesAdminister the firm’s Linux server fleet, including provisioning, patching, package management and storagePerform performance tuning, capacity planning, log analysis, and root-cause analysis on Linux hostsAdminister NFS storage on Linux: export configuration, client mounts, permissions, quotas, performance tuning, and troubleshootingAdminister the firm’s Microsoft 365 tenant, including Entra ID (Azure AD), Exchange Online, Teams, SharePoint Online, and OneDriveConfigure and maintain Intune / endpoint management policies for Windows devicesMaintain mail flow, anti-spam, anti-phishing, retention, and data-loss-prevention policiesAdminister the firm’s network infrastructure: switches, routers, firewalls, VPN, VLANs, and wirelessManage core network services including DNS, DHCP, NTP, and certificate infrastructureMonitor network performance, troubleshoot connectivity and latency issues, and coordinate with carriers, ISPs, and market-data vendors as neededImplement and maintain network segmentation, ACLs, and firewall rules aligned with the firm’s security policyOwn the end-to-end identity lifecycle: onboarding, offboarding, role changes, and periodic access reviews across Linux, Windows, and M365Manage SSO, MFA, password policies, and privileged-access controlsAdminister access to internal applications, file shares, mailing lists, and shared mailboxesRun monitoring, alerting, and on-call/incident response for infrastructure and end-user systemsManage workstation and laptop imaging, deployment, and full hardware lifecycleMaintain technical documentation, runbooks, and disaster-recovery proceduresQualificationsBachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field5+ years of experience in systems engineering, infrastructure engineering, site reliability engineering, or technical operationsDeep expertise administering Linux environments across multiple distributionsStrong experience with scripting and automation using Python, Bash, or similar languagesExperience within proprietary trading, hedge funds, market making, fintech, or other low-latency environmentsStrong understanding of networking fundamentals including TCP/IP, multicast, routing, switching, and performance troubleshootingFamiliarity with configuration management and orchestration tools such as Ansible, Kubernetes, Docker, or similar platformsExperience with monitoring and observability platforms such as Prometheus, Grafana, Nagios, Icinga, InfluxDB, or similar toolsStrong troubleshooting and problem-solving skills with the ability to operate independently under pressure","datePosted":"2026-06-17T02:57:34.386Z","dateModified":"2026-06-17T02:57:34.386Z","hiringOrganization":{"@type":"Organization","name":"Request Technology","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Shorewood","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"34bad3dd8d95b37e69de3728"},"url":"https://jobsearcher.com/jobs/34bad3dd8d95b37e69de3728"}}