{"id":2202870,"url":"https://alion.io/job/medrisk-systems-administrator","title":"Systems Administrator","company":{"id":2152188,"name":"MedRisk","domain":"medrisknet.com","url":"https://alion.io/company/medrisknet","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"ADP","truth_index":{"grade":"B","score":83,"open_postings":3,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-10-10T05:45:15Z"}},"role":"DevOps","role_family":"DevOps","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"DNS","optional":false},{"name":"HIPAA","optional":false},{"name":"ISO 27001","optional":false},{"name":"SOC 2","optional":false},{"name":"TCP/IP","optional":false},{"name":"VMWare","optional":false},{"name":"Windows Server","optional":false},{"name":"PowerShell","optional":true}],"status":"live","first_seen_at":"2026-10-09T19:33:00Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-11T21:57:13Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Guatemala-based candidates with valid work authorization only.\nPosition Summary\nWe are looking for a Systems Administrator to join our Infrastructure team and support highly available, business-critical environments.\nThis role has a strong focus on F5 BIG-IP application delivery and Imperva Web Application Firewall (WAF), along with hands-on administration and support of Microsoft Windows Server and VMware vSphere environments.\nThe ideal candidate is a strong troubleshooter who can understand the complete application-delivery path, identify where issues are occurring, and collaborate effectively with Infrastructure, Network, Security, Database, and Application teams.\nKey Responsibilities\nAdminister and troubleshoot F5 BIG-IP/LTM, including virtual servers, pools, health monitors, profiles, persistence, iRules, SSL/TLS, and certificates.\nAdminister and support Imperva WAF, including application onboarding, security policies, troubleshooting blocked requests and false positives, and policy tuning.\nTroubleshoot application traffic across DNS, WAF, firewalls, load balancers, web/application servers, and backend services.\nAdminister and troubleshoot Microsoft Windows Server, including Active Directory-integrated environments, IIS, DNS, certificates, services, and permissions.\nWindows Server Administration, support VMware vSphere, vCenter, ESXi, HA, DRS, vMotion, virtual machines, and clusters.\nSupport production incidents, root-cause analysis, vulnerability remediation, patching, upgrades, and infrastructure changes.\nParticipate in disaster recovery, failover testing, infrastructure monitoring, and capacity management.\nCreate and maintain technical documentation, diagrams, runbooks, and recovery procedures.\nCollaborate with Security, Network, Application, and Database teams to resolve complex infrastructure and application-delivery issues.\nParticipate in an on-call rotation as required.\nRequired Qualifications\n3-5+ years of Systems Administration or Infrastructure Engineering experience. F5 and Imperva responsibilities make application delivery, web security, certificates, DNS/network troubleshooting, and escalation skills important parts of the role.\nHands-on experience administering and troubleshooting F5 BIG-IP/LTM.\nExperience with Imperva WAF or comparable enterprise Web Application Firewall technologies.\nStrong Microsoft Windows Server administration experience.\nExperience administering VMware vSphere environments.\nStrong understanding of TCP/IP, DNS, HTTP/HTTPS, SSL/TLS, certificates, and load balancing, network protocols and connectivity\nExperience troubleshooting multi-tier enterprise applications. Disaster Recovery and Business continuity.\nStrong troubleshooting, documentation, communication, and ownership skills.\nExperience HIPAA, HITRUST, SOC 2, ISO 27001, or similar regulatory and security requirements is a plus.\nPreferred Qualifications\nExperience with F5 iRules and Imperva Cloud WAF.\nExperience with Microsoft IIS and PowerShell.\nExperience with VMware HA, DRS, vMotion, and infrastructure lifecycle management.\nExperience with monitoring, vulnerability management, backup, and disaster-recovery technologies.\nExperience supporting highly available or regulated environments.\nF5, VMware, Microsoft, or security-related certifications are a plus.\nCore Competencies\nTechnical Troubleshooting: Able to systematically isolate problems across network, security, application-delivery, virtualization, operating-system, and application layers.\nApplication Delivery: Understands how enterprise applications traverse DNS, WAF, firewalls, load balancers, web servers, and backend services.\nSecurity Awareness: Understands the security implications of infrastructure changes and balances application availability with appropriate security controls.\nOwnership: Takes responsibility for technical issues through resolution rather than simply transferring problems between teams.\nChange Discipline: Plans, documents, tests, and validates production changes and maintains appropriate rollback procedures.\nCommunication: Clearly communicates technical issues, risks, outages, and recommendations to technical and non-technical stakeholders.\nContinuous Improvement: Identifies opportunities to automate repetitive activities, eliminate recurring incidents, improve documentation, and increase infrastructure reliability.\nYou should be able to follow an application request end-to-end:\nClient → Firewall → Imperva WAF → F5 → Web/Application Server → Backend Services\nIf you enjoy solving complex infrastructure problems, working across technologies, and supporting critical enterprise environments, we’d like to hear from you.","description_format":"text","description_chars":4670,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Physiotherapy & Rehabilitation","Care Coordination & Population Health"],"lifecycle":[{"event":"open","at":"2026-10-09T21:58:29Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":22,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/medrisk-systems-administrator","json_url":"https://alion.io/job/medrisk-systems-administrator.json","meta":{"generated_at":"2026-10-11T22:36:35Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per 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