{"id":2847886,"url":"https://alion.io/job/ibsi-ingenieur-systeme-et-securite-os-linux","title":"Ingénieur système et sécurité OS Linux","company":{"id":3908528,"name":"IBSI","domain":"ibsi.fr","url":"https://alion.io/company/ibsi","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"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":["Guyancourt, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":60000,"max":66000,"currency":"EUR","period":"year","gross":null,"usd_annual":74199},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CentOS Stream","optional":false},{"name":"Debian","optional":false},{"name":"IAM","optional":false},{"name":"Linux","optional":false},{"name":"Red Hat","optional":false}],"status":"live","first_seen_at":"2026-10-19T11:41:29Z","employer_posted_date":null,"last_verified_at":"2026-10-19T11:41:29Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Ingénieur système et sécurité OS Linux Debian CentOs Redhat, dans le cadre d’une mission dans le secteur de la Défense, le Consultant doit pouvoir être habilité Grand Secret.\nMission :\nHardening & Sécurité Système (OS)\n• Appliquer et maintenir les lignes directrices de sécurisation des environnements Linux (Hardening CIS / Durcissement des OS / recommandations ANSSI)\n• Configurer et administrer les contrôles d'accès obligatoires\n• Assurer la gestion du cycle de vie des correctifs du noyau (patch management/live patching)\nIAM, Authentification & Traçabilité\n• Gérer l'authentification centralisée et l'élévation de privilèges\n• Administrer les politiques d'accès réseau local et le chiffrement des données\nDétection, Audit & Réponse aux Incidents\n• Réaliser des audits de vulnérabilités réguliers et participer à l'analyse/remédiation des CVE.\n• Participer à la gestion des incidents de sécurité (analyse de logs, investigation DFIR sur environnement Linux).\nAutomation\n• Industrialiser le déploiement des configurations de sécurité via Ia C.\n\nProfil Issu(e) d’un BAC+5 Master en Ingénierie Sécurité Linux confirmé (3 à 5+ ans d'expérience)\n• Connaissance de l’IGI1300\n• Contraintes de sécurité, industrie de Défense\n• Autonome et proactif\n• Bonne capacité de travail & d’implication sont indispensables à la réalisation des missions\n• Bon relationnel & bonne capacité d’adaptation\nProfil recherché\nIngénieur système et sécurité OS Linux Debian CentOs Redhat, dans le cadre d’une mission dans le secteur de la Défense, le Consultant doit pouvoir être habilité Grand Secret.\n\nMission :\nHardening & Sécurité Système (OS)\n• Appliquer et maintenir les lignes directrices de sécurisation des environnements Linux (Hardening CIS / Durcissement des OS / recommandations ANSSI)\n• Configurer et administrer les contrôles d'accès obligatoires\n• Assurer la gestion du cycle de vie des correctifs du noyau (patch management/live patching)\nIAM, Authentification & Traçabilité\n• Gérer l'authentification centralisée et l'élévation de privilèges\n• Administrer les politiques d'accès réseau local et le chiffrement des données\nDétection, Audit & Réponse aux Incidents\n• Réaliser des audits de vulnérabilités réguliers et participer à l'analyse/remédiation des CVE.\n• Participer à la gestion des incidents de sécurité (analyse de logs, investigation DFIR sur environnement Linux).\nAutomation\n• Industrialiser le déploiement des configurations de sécurité via Ia C.\n\nProfil Issu(e) d’un BAC+5 Master en Ingénierie Sécurité Linux confirmé (3 à 5+ ans d'expérience)\n• Connaissance de l’IGI1300\n• Contraintes de sécurité, industrie de Défense\n• Autonome et proactif\n• Bonne capacité de travail & d’implication sont indispensables à la réalisation des missions\n• Bon relationnel & bonne capacité d’adaptation","description_format":"text","description_chars":2791,"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":["Information Security","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-10-19T11:56:00Z"}],"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":23,"reasons":["seen:0","velocity","win:early"],"computed_at":"2026-10-20T05:45:00Z"},"pay":{"stated_usd_annual":74199,"is_top_pay":false},"html_url":"https://alion.io/job/ibsi-ingenieur-systeme-et-securite-os-linux","json_url":"https://alion.io/job/ibsi-ingenieur-systeme-et-securite-os-linux.json","meta":{"generated_at":"2026-10-21T01:04:05Z","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 call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":1663,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-22T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3908528},"rest":"https://alion.io/mcp/rest/get_company?id=3908528"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fibsi-ingenieur-systeme-et-securite-os-linux"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fibsi-ingenieur-systeme-et-securite-os-linux"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fibsi-ingenieur-systeme-et-securite-os-linux"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ibsi-ingenieur-systeme-et-securite-os-linux\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fibsi-ingenieur-systeme-et-securite-os-linux"}]}