{"id":2866852,"url":"https://alion.io/job/wikeys-expert-dba-oracle","title":"Expert DBA Oracle","company":{"id":3908523,"name":"Wikeys","domain":"wi-keys.com","url":"https://alion.io/company/wikeys","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"freelance","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":550,"max":550,"currency":"EUR","period":"day","gross":null,"usd_annual":154250},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Oracle","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-19T15:06:10Z","employer_posted_date":null,"last_verified_at":"2026-10-19T15:06:10Z","board_verified":false,"closed_at":null,"days_open":8,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":8},"description":"Contexte de la missionLa mission porte sur des environnements de production critiques et nécessite une expertise approfondie des technologies Oracle Database, Oracle RAC, Data Guard et Exadata.\nL'expert sera responsable du maintien en conditions opérationnelles des infrastructures de bases de données, du traitement des incidents complexes, de l'optimisation des performances et de la continuité de service dans des environnements distribués et multi-sites.\n\nResponsabilités principalesAdministrer les bases de données Oracle 19c et 26ai dans les environnements de développement, recette, qualification et production.\n\nAssurer le maintien en conditions opérationnelles (MCO) des serveurs et infrastructures de bases de données.\n\nAdministrer et optimiser les architectures Oracle RAC afin de garantir la haute disponibilité et la continuité des services.\n\nGérer la réplication et la synchronisation des bases de données multi-sites à l'aide d'Oracle Data Guard.\n\nExploiter les infrastructures Oracle Exadata et contribuer à leur optimisation.\n\nDiagnostiquer et résoudre les incidents de niveau 3 ainsi que les problèmes complexes de niveau 2 liés aux moteurs SGBD et au code SQL.\n\nFournir un support technique de niveau 2 aux équipes de pilotage sur les incidents de bases de données.\n\nAnalyser et optimiser les performances des moteurs Oracle et des requêtes SQL.\n\nÉlaborer et analyser les rapports de performance, identifier les goulots d'étranglement et proposer des actions correctives.\n\nAnalyser les changements techniques, traiter les évolutions et planifier les opérations de maintenance préventive.\n\nRéaliser le capacity planning et optimiser l'utilisation des ressources des infrastructures.\n\nParticiper aux exercices de continuité, de disponibilité et de reprise après incident.\n\nMaintenir à jour la documentation technique, les schémas d'architecture, les procédures opérationnelles et les référentiels de configuration.\n\nIntervenir en tant qu'expert sur les projets d'infrastructure, les études d'opportunité et la définition des architectures de bases de données.\n\nProfil recherché\nProfil recherchéDBA Oracle senior ou expert infrastructure bases de données de niveau N4.\n\nExpérience significative dans l'administration de bases de données Oracle au sein d'environnements de production critiques.\n\nMaîtrise approfondie d'Oracle RAC et Data Guard, indispensables pour la mission.\n\nExpérience pratique des environnements Oracle Exadata fortement souhaitée et considérée comme très importante.\n\nCapacité à diagnostiquer et résoudre des incidents complexes en production, y compris dans des contextes de haute disponibilité et de réplication multi-sites.\n\nExpertise en optimisation des performances SQL, analyse des ressources et capacity planning.\n\nExpérience dans la gestion des changements, la maintenance préventive et les projets d'infrastructure.\n\nCapacité à contribuer à la définition d'architectures techniques et à proposer des solutions fiables, performantes et résilientes.\n\nDisponibilité pour participer aux astreintes et aux interventions en dehors des heures 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