Trouvez votre prochaine offre d’emploi ou de mission freelance Firewall

Contexte Nous recherchons pour notre client situé à Alès (30) un Administrateur Réseau (H/F) dans le cadre d'un renforcement d'équipe. Vous interviendrez en complément de l'administrateur réseau actuel afin d'assurer la gestion, la maintenance et la sécurisation du réseau industriel. Missions principales Assurer le maintien en conditions opérationnelles du réseau OT. Administrer un parc d'environ 100 switchs industriels (SIEMENS, Hirschmann, Dell, Netgear). Superviser la configuration, le monitoring et le dépannage des équipements réseau. Identifier et suivre l'obsolescence des matériels réseau. Proposer et mettre en œuvre des plans de remplacement des équipements obsolètes. Participer à l'installation, la configuration et la mise en service des projets firewall. Contribuer à l'amélioration continue de la sécurité du réseau OT.

3rd Line System Administrator - Juniper or Cisco Must have an Active DV Clearance You will be responsible for incident resolution, system monitoring, infrastructure support, and technical troubleshooting across a broad range of enterprise technologies. The position is ideal for an experienced 2nd or 3rd Line Systems Administrator looking to develop their skills further. Candidates willing to work in Corsham are particularly encouraged to apply, and flexibility on technical experience will be considered. Legacy infrastructure training will be provided where required. 3rd Line System Administrator Responsibilities Provide 2nd and 3rd Line support for secure infrastructure and user services. Monitor systems and respond to incidents through the service management toolset. Configure, troubleshoot, and resolve infrastructure and network faults. Support Windows Server, Active Directory, VMware, Exchange, and core infrastructure technologies. Perform user administration, system maintenance, and operational support activities. Analyse Windows log files and diagnose technical issues. Support network technologies including routing, switching, firewalls, MPLS, and BGP. Deliver existing implementation solutions and contribute to service improvements. Participate in shift work where required. 3rd Line System Administrator Skills and Experience Experience providing 2nd or 3rd Line infrastructure support. Strong knowledge of Windows Server 2012/2022 and VMware technologies. Experience with Active Directory, GPO, DNS, DFS, User Account Management, and Exchange. Strong troubleshooting and analytical skills. Experience configuring and fault-finding network devices. Knowledge of routing, switching, MPLS, BGP, and enterprise firewalls. Experience with Juniper networking technologies is desirable. Strong Cisco experience will also be considered. Knowledge of HSM, PKI, or hardware encryption would be advantageous. Training will be provided where required. Excellent customer service and communication skills. Ex-Military Signals experience would be advantageous. To apply, please send your CV by pressing the apply button. Due to high volume of applications, only shortlisted CVs will be contacted. Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.

🌟 Quel sera ton poste ? 🌟 💼 Poste : Administrateur Système, Réseau & Sécurité H/F 📍Lieu : Rennes (35) 🏠 Télétravail : Flexible 📝Contrat : CDI ou Freelance/Portage Début de mission : Début Septembre 👉 Contexte client : Tu rejoins un acteur structuré où les enjeux autour des infrastructures IT, du Cloud et de la cybersécurité sont au cœur de la stratégie. Au sein de l'équipe Infrastructure et Sécurité SI, tu interviens sur des environnements hybrides (on-premise & cloud ) avec l'objectif de garantir la performance, la disponibilité et la sécurité des systèmes d'information. Tu seras positionné comme un expert technique capable de concevoir, faire évoluer et maintenir des infrastructures complexes tout en accompagnant les projets stratégiques. Tu auras pour missions de : Concevoir, mettre en œuvre et maintenir en conditions opérationnelles l'infrastructure SI (serveurs Windows/Linux, virtualisation VMware). Administrer les solutions de stockage (NetApp, IBM) et de sauvegarde (Veeam). Gérer et faire évoluer les environnements Microsoft : Active Directory, Azure AD, Exchange Online. Participer à l'architecture et à l'exploitation de solutions open source et conteneurisées (Kubernetes). Déployer et maintenir des pipelines CI/CD (GitLab CI) et piloter l'infrastructure via Terraform sur GCP. Administrer les composants réseau : Cisco, Nexus, LAN/WAN, routage, SD-WAN. Gérer les solutions de sécurité : Firewall, Proxy, Reverse Proxy, WAF, PAM, EDR, SSE, SSO. Piloter les projets d'infrastructure de bout en bout (conception à mise en production). Coordonner les prestataires et intégrateurs sur les projets techniques. Rédiger et maintenir la documentation technique et les procédures d'exploitation. Assurer le support niveau 2/3 sur les incidents complexes et demandes escaladées. Contribuer à la veille technologique et proposer des solutions innovantes. 🧰 Stack technique : Systèmes : Windows Server, Linux Virtualisation : VMware Cloud : GCP (Terraform impératif), Azure Conteneurs & DevOps : Kubernetes, GitLab CI/CD Stockage & sauvegarde : NetApp, IBM, Veeam Réseau : Cisco, Nexus, LAN/WAN, SD-WAN, TCP/IP Sécurité : Firewall, WAF, Proxy, PAM, EDR, SSO Outils : environnements hybrides (IaaS, PaaS, SaaS)

IT Support Technician – UK Our Client is an Entertainment, a live entertainment platform that owns and operates over 100 major music festivals in the UK, Europe and Australia. They are looking to hire an IT Support Technician to work within the UK division of the business. This role offers a self-starting candidate the ability to support a dynamic and fast-growing business, with future opportunities for personal development and career growth within the group. The IT Support Technician will report to the Director of Information Technology, and will support users both at global head office in Central London and in our operating businesses across the UK. The role will be instrumental in ensuring that users benefit from the highest standards of service, including with regards to information security, system availability and change management. Our current core tech stack consists of MS365 + Azure AD, box.com, Airtable, Zoom (+ Zoom Phone), Slack and Salesforce and we support user access to Google Workspace together with various other line of business products. Prior experience administering Azure Active Directory tenancies would be particularly valuable, together with exposure to deployment and maintenance of security tools such as endpoint management and anti-virus. We support both Windows and Mac devices and our users access our services both on corporate machines and BYOD. We are 100% cloud native with no on-premises systems. Specific tasks will include: First line support for users both in person and via support channels. Resolve or escalate issues Hardware setup and configuration, patching and upgrades Support audio-visual / conference room equipment and printers Monitoring and maintaining local networking equipment such as access points, firewalls etc Responsible for maintenance and upkeep of our backup Infrastructure, including laptops and relevant server(s) and other designated cloud backup locations. Provide timely report to senior management on progress of dedicated tasks, or on-going activities. Configuration and monitoring of core systems Administration for IT processes such as: Support ticketing Equipment inventories Hardware purchases, repairs and disposals Joiner-Mover-Leaver process Managing license count Assisting with change projects such as data migration, office reconfiguration and platform or service changes Personal Attributes: Detail and precision in aspects of approach to tasks Ability to prioritise conflicting workflows Team player, ability to communicate effectively with non-technical users and senior management Excellent presentation and time keeping Experience 3 years experience in equivalent setting Microsoft Office 2019+ support essential Mac (iOS) support exposure desirable Exposure to endpoint device management systems desirable S Azure support essential Good documentation and analytical skills, with a passion for end-user satisfaction. Evidence of commitment to training and knowledge The Client is based in Central London with some attendance at operating business offices elsewhere in London and across the UK. The salary is in the range £30K - £35K. Do send your CV to us in Word format along with your salary and availability.

IT Support Analyst/Engineer with Level 1 and Level 2 Role Description This full-time IT Support Analyst/Engineer role covers both Level 1 and Level 2 support and is offered on a hybrid basis, with work primarily in London and some work from home flexibility. Day-to-day responsibilities include handling incoming support tickets, responding to user queries, and providing first-line technical assistance for hardware, software, and network issues. The role also involves performing more advanced second-line diagnostics, resolving complex incidents, escalating problems when required, and updating documentation and knowledge bases. The IT Support Analyst/Engineer will install and configure systems, manage user accounts and access permissions, monitor system performance, and assist with routine maintenance tasks and upgrades. Collaboration with other IT team members and clear communication with non-technical users are key aspects of the position. Qualifications Candidates should possess strong Technical Support and Information Technology skills, including experience with common operating systems, hardware, and business applications. Candidates should possess solid Analytical Skills and Troubleshooting abilities to diagnose issues, identify root causes, and deliver effective solutions. Candidates should possess clear and professional Communication skills, with the ability to explain technical concepts to users at different levels of technical understanding. Relevant certifications such as CompTIA A+, Network+, Microsoft, or similar credentials are beneficial, along with experience in Level 1 and Level 2 support environments. Ability to work in a hybrid setting, manage priorities in a busy service desk environment, and maintain a customer-focused, inclusive approach when supporting diverse user groups. For this position you will have at least 5 years experience in IT as an IT Support Engineer with 1 and 2 Level support experience - ideally in the Banking/Financial industry. In-depth knowledge of and troubleshooting experience with Windows, Office applications and conferencing applications. Responsible for the support and maintenance of the IT infrastructure and to provide IT support to staff and other group colleagues. To assist in the response to service outages and other IT related problems as well as maintenance and upkeep of for security of the systems in place. To provide IT Support and assistance to the branch's staff in a timely fashion. Responsible for the maintenance of the IT infrastructure of the Branch by providing first & Second line support of software, hardware and networking that incudes installation, configuration and troubleshooting. Support endpoint security standards (antivirus/firewall/patching/two-factor authentication). Provide day to day support to the Admin and HR function to cover: joiners/leavers/ movers process, CCTV & Paxton Card Access. Assist the IT Manager in delivering various IT related projects by managing the day to day operational aspects of such projects. End User Computing support for all staff. (e.g. Install, configure, and maintain desktops, laptops, printers, Phones/Mobiles and other IT equipment.) Networking Fundamentals – DNS, DHCP, TCP/IP, and LAN/WAN. Good understanding of cybersecurity measures Coordinator between the London Users and Group IT Security on all requests for systems access and to ensure that such permissions are provided promptly, are regularly updated and that the Group Access Matrix Protocol is followed at all times. Preserve the Assets of the Office by implementing Disaster Recovery and back up procedures and ensuring that the standards comply with Group requirements. Provide IT support to ensure the smooth running of daily and periodic reports for the London Compliance team to ensure adherence to the Anti Money Laundering Provisions . Undertake Data Extraction for reporting requirements for all the other stakeholders at the branch. To hold Administrator function for some of the systems housed at the Office. Responsible for the granting of access and maintenance of system matrixOverall networking equipment monitoring (i.e. Network Switches, Firewall and other appliances) and support inclusive of the server room. To plan and carry out maintenance checks to ensure IT Operations, infrastructures are running smoothly and ensure daily routine task completeness. Manage inventory of computers, network equipment including tracking of purchased equipment and services. To maintain and ensure that the BCP site is always ready for continuous bank operations Important Business Services - IBS owner is to ensure the resilience of the IBS theyare responsible for (Ensure appropriate RCSAs, CETs, KRIs are in place to monitor procedures and controls within their units) Assist the HOD/Manager with implementing/putting in place, any applicable training/guidance/SOPs to staff relating to cyber security & operational resilience. To maintain the branch Avaya IP Office Phone system and to ensure that the recording system is always up and running at all times. To perform monthly infrastructure test and report for Risk Assessment. Manage Incident Handling procedure (This includes monitoring as well as post –incident follow up). Respond to IT service requests and incidents in a timely manner, prioritizing based on business impact, especially for critical banking functionsSupport the Branch operations as and when needed and any other tasks assigned by Management of the Branch. Data Integrity and Compliance Operationalise data strategy and communicate to the Data Owner or the Management any changes in their BAU requirements which involve data. To ensure all data worked on and or/shared with internal/external clients are accurate, compliant and maintained in accordance with Company's data quality standards. Handle all data in strict alignment with the General data protection Regulations (GDPR) principles. Keep track of documents created by the team. Escalate any suspected data breaches or privacy issues to the DPO promptly and without delays. Ensuring any data sharing requests are discussed with HOD/DPO so that prior authorisation is given and follows GDPR / department's SOPs. Collaborate with DPO on data Protection Impact Assessment when introducing new systems or processes to ensure privacy risks are mitigated at the outset. Technical Skills Required Proficient in common operating systems (Windows 11 and Linux, Server 2016 and later) Providing AV support for branch Software proficiency – O365, Onedrive,Teams, Sharepoint, Bloomberg, FXT, SEP, SEE, ME Endpoint Protection, Murex, Swift, 1AML, SIBS, GFMS, COP, Refinitiv, Syncovery, SQL Server, Paxton, VBR, VRO and VeeamOne Proficient in Imaging windows machines, image creation & management, GPO, and AD Networking Fundamentals – DNS, DHCP, TCP/IP, and LAN/WAN. Good understanding of Vmware; ESXI, vSphere, vCenter, Fortigate Firewalls, Cisco Switches Good understanding of patching practices and troubleshooting Install, configure, and maintain desktops, laptops, printers, Phones/Mobiles and other IT equipment. AV support (conference phones, Logitech meeting room solutions etc) Proficient in programming languages Project management Data analysis and reporting Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) This is a 5 days in the office role in Central London. Salary for this role will be circa £55K - £60K. Do send your CV to us in Word format along with your salary and availability.

Information Security Manager with Network Engineering Skills Our Client is bank based in Central London who are looking to recruit a seasoned professional with at least 7 to 10 years expertise level Information Security coupled with Hands-on Network Engineering. The role is mainly Information Security – Data Security and split circa 80% with 20% Network Engineering – so you do need to be hands-on technically. You will ideally have circa 5+ years of work experience with Network Engineering coupled with over 10 years experience with Cisco Systems Products Role Description The Information Security Manager with Network Engineering Skills is a full-time hybrid role based in London, with the flexibility to work from home part of the week. The role oversees the design, implementation, and continuous improvement of information security policies, procedures, and controls across networks and systems. Day-to-day responsibilities include managing the Information Security Management System (ISMS), monitoring cybersecurity and network security events, coordinating incident response, and ensuring compliance with relevant standards and regulations. The person in this role will collaborate with IT and business stakeholders to assess risks, implement technical and procedural safeguards, and support secure network architecture and configuration. Additional tasks include producing security documentation, leading security awareness initiatives, and providing guidance on secure network engineering practices. Qualifications Strong skills in Information Security Management and Information Security, with experience defining and enforcing security policies and governance. Hands-on expertise with Information Security Management Systems (ISMS), including implementation, maintenance, and audit readiness. Proficiency in Cybersecurity and Network Security, covering threat detection, vulnerability management, network hardening, and incident response. Demonstrated network engineering experience (e.g., routing, switching, firewalls, VPNs, secure network design). Relevant certifications such as CISSP, CISM, CISA, CompTIA Security+, or similar are beneficial. Experience with regulatory and compliance frameworks (e.g., ISO 27001, GDPR, NIST) and security best practices. Ability to analyze complex technical environments, communicate clearly with both technical and non-technical stakeholders, and document security requirements and processes. Bachelor's degree in computer science, information security, engineering, or a related field, or equivalent professional experience. Key Networking Skills Required: Cisco Network Switches Layer 2 and 3 (Catalyst 9K) – CCNP Level, Expert Level Preferred Routing protocol – OSPF (Catalyst 9K) – CCNP Level, Expert Level Preferred Cisco Switch Stacking (Cat 9K Switches 9600, 9300. 9200) Virtual Routing and Forwarding – (Catalyst 9600) Internetworking Troubleshooting - CCNP Level, Expert Level Preferred High Availability and Disaster Recovery - CCNP Level, Expert Level Preferred Security/Cyber Security Skills Required: Cisco Firepower Firewalls (ASA, FTD) - CCNP Level, Expert Level Preferred Palo Alto Firewalls – Specialist Level, Architect Level Preferred Cisco Layer 2 Port Security Network Access Control including Cisco ISE, TACACS etc Network Detection and Response Network Encryption (Site to Site VPN's) Cisco Secure Client (ASA) Network IPS (Trellix) Network Zero Day (Trellix NX or similar) Host Zero Day (Trellix HX or similar) Cyber Security Network Control Incident Investigation with the assistance of group cyber security experts – Tier 1, Tier 2 to 3 preferred, using LogRhythm SIEM a bonus Host End Point Protection (Symantec) Host IPS Preferred Skills and Knowledge Vulnerability Management (Scanning for Vulnerabilities and classifying the risk, CIS Benchmark Scanning and compliance) – Using Rapid7 a bonus Knowledge of Penetration Testing, understanding of the types of testing and their advantages and disadvantages Security Zone Design and considerations Network and Security Architecture Design and Considerations Understanding of Information Security (Confidentiality, Integrity, Availability), MITRE ATT&CK, NIST, ISO 27001, SIEM use cases for key controls etc Risk Management in Cyber Security, SSL Blind spots, what causes them and how to mitigate Malware/Ransomware and how to mitigate along with Penetration testing concepts Understanding of White/Black/Grey Box penetration testing. Developing Security policies and procedures and conducting audits/risk assessments Handling crisis situations during security incidents The role is hybrid 3 days in the office in Central London. The rate for this role will be in the range £500 pd to £650 pd. This is a 3 month assignment. Do send your CV to us in Word format along with your salary and notice period.

IT Support Technician Our Client is an Entertainment, a live entertainment platform that owns and operates over 100 major music festivals in the UK, Europe and Australia. They are looking to hire an IT Support Technician to work within the UK division of the business. This role offers a self-starting candidate the ability to support a dynamic and fast-growing business, with future opportunities for personal development and career growth within the group. The IT Support Technician will report to the Director of Information Technology, and will support users both at global head office in Central London and in our operating businesses across the UK. The role will be instrumental in ensuring that users benefit from the highest standards of service, including with regards to information security, system availability and change management. Our current core tech stack consists of MS365 + Azure AD, box.com, Airtable, Zoom (+ Zoom Phone), Slack and Salesforce and we support user access to Google Workspace together with various other line of business products. Prior experience administering Azure Active Directory tenancies would be particularly valuable, together with exposure to deployment and maintenance of security tools such as endpoint management and anti-virus. We support both Windows and Mac devices and our users access our services both on corporate machines and BYOD. We are 100% cloud native with no on-premises systems. Specific tasks will include: First line support for users both in person and via support channels. Resolve or escalate issues Hardware setup and configuration, patching and upgrades Support audio-visual / conference room equipment and printers Monitoring and maintaining local networking equipment such as access points, firewalls etc Responsible for maintenance and upkeep of our backup Infrastructure, including laptops and relevant server(s) and other designated cloud backup locations. Provide timely report to senior management on progress of dedicated tasks, or on-going activities. Configuration and monitoring of core systems Administration for IT processes such as: Support ticketing Equipment inventories Hardware purchases, repairs and disposals Joiner-Mover-Leaver process Managing license count Assisting with change projects such as data migration, office reconfiguration and platform or service changes Personal Attributes: Detail and precision in aspects of approach to tasks Ability to prioritise conflicting workflows Team player, ability to communicate effectively with non-technical users and senior management Excellent presentation and time keeping Experience 3 years experience in equivalent setting Microsoft Office 2019+ support essential Mac (iOS) support exposure desirable Exposure to endpoint device management systems desirable S Azure support essential Good documentation and analytical skills, with a passion for end-user satisfaction. Evidence of commitment to training and knowledge The Client is based in Central London with some attendance at operating business offices elsewhere in London and across the UK. This is a 3 month contract assignment for 3 days per week initially. The rate will depend on your experience but will be in the range £150 to £200 per day. Do send your CV to us in Word format along with your daily rate and availability.

Contexte de la mission En Squad projet : Assurer la mise en production des solutions Réseau LAN et WAN, Optimiser la performance du réseau et produire un reporting adapté Rédiger des livrables de conception et d'exploitation Profil Vous justifiez d'une expérience réussie d'au moins 5 ans dans des fonctions similaires réalisées chez un fournisseur de service internet, un opérateur télécom ou dans un environnement grand compte. Les compétences nécessaires sont : Linux F5 WAF & Load Balancing Firewall Stormshield Routage dynamique OSPF Firewall Fortinet & Fortimanager Cisco ACI & switchs Nexus Sécurité (WAF, IPS, policy, VPN, Proxy)

PROPULSE IT recherche un consultant Senior - Architecte Réseau Datacenter Dans une équipe qui a pour missions principales l'élaboration de la stratégie, la conception, la mise en œuvre technique et le support des Infras en datacenter (Cloud privé on premise), en l'occurrence les infras de Virtualisation, Stockage et le socle Réseau datacenter Cette équipe souhaite renforcer son périmètre Réseau, avec un Expert Réseau Datacenter, afin de l'assister dans : - Etude et analyse des opportunités d'évolution des infras Réseau & Sécurité - mise en œuvre et industrialisation Infra réseau et sécurité au sein des datacenters. - Mise en œuvre de projets d'infras réseau & sécurité - Support technique N3 sur les technologies réseau & sécurité Les principales compétences attendues : - Expérience technique avancée en Proxy Web de ZScaler - Expérience technique avancée en Firewalling (Checkpoint, Fortinet et Palo Alto) - Expérience technique avancée en F5 (Loadbalancing, APM)

Au sein de xxx, le projet vise au PoC, au design, au setup et au tuning de solutions avancées OnPremises de données innovantes à très haute performance et très grosses volumétries avec des sous-jacents système exigents nécessitant des connaissances hardware, système et réseau approfondies. Le prestataire sera intégré au stream "Observability as Data" et travaillera dans une petite équipe d'experts correspondant aux différents aspects nécessaires à la construction de la solution. L'intervenant attendu doit donc être très sénior en termes de compétences avec une très bonne culture IT sur matériel OnPremises en contexte de grande entreprise. De ce fait le profil souhaité de se rapprocher de ceci : - Expérience >= 10 ans en gestion de parcs informatiques Linux on-prem. - Expérience avec le déploiement et la gestion de solutions S3 on-prem (Minio/AIStor, Scality, Garage, Ceph, etc.) à l'échelle (> 1PB). - Connaissances avancées en administration systèmes Linux et des sous systèmes de stockage (lvm, dm-crypt, iSCSI, etc.) - Connaissances avancées en réseaux Linux (TCP/IP, VLAN, LBs, Firewall, etc.) - Connaissances avancées en automatisation (Ansible, Python, AWX/Tower, etc.) - Capacité à mener des sous-projets en autonomie, et en collaboration avec plusieurs acteurs dans un environnement multi-responsabilités. Description du profil : Expérience dans l'environnement de la prestation : 3-5 ans inclus Designer technique pouvant démontrer une expérience tangible sur des projets d'IA : - Compréhension des besoins utilisateur afin de concevoir des expériences adaptées. - Conception d'interfaces intuitives et compréhensibles des utilisateurs. - Conception de systèmes transparents, expliquant leurs décisions et réduisant la "boîte noire" des modèles IA. - Intégrer des principes de design responsables et évitant les biais pour garantir une IA équitable. - Adaptation des designs en fonction des retours utilisateurs et des performances des modèles. -Collaboration avec les équipes IA et Produit. - Personnalisation et adaptation des interfaces. NB : la séniorité doit s'entendre sur la base du temps passé sur des projets et missions specifiquement sur l'IA. .

Vous aimez concevoir des infrastructures robustes autant que les maintenir en conditions opérationnelles ? Vous appréciez les environnements techniques où la fiabilité, la sécurité et la disponibilité sont des enjeux majeurs ? Rejoignez une équipe d'experts qui intervient sur des projets d'infrastructure à forte valeur ajoutée, dans des environnements virtualisés et exigeants. Vos missions : 🎯 Au sein d'une équipe technique, vous intervenez sur l'ensemble du cycle de vie des infrastructures Linux, de leur conception jusqu'à leur exploitation. À ce titre, vous serez amené à : Concevoir l'architecture système à partir des besoins exprimés par les clients en intégrant les contraintes de sécurité, de redondance, de sauvegarde et d'exploitation. Déployer et configurer les infrastructures virtualisées sous VMware ou Proxmox. Installer et administrer des serveurs Linux dans des environnements de production. Réaliser les phases de tests, de validation et de mise en service. Produire la documentation technique (architecture, exploitation, procédures, maintenance). Assurer la supervision des infrastructures et intervenir en support de niveau 3 pour garantir leur disponibilité et leurs performances. Participer à l'amélioration continue des plateformes et des bonnes pratiques d'administration. Environnement technique : 🛠️ Virtualisation : VMware, Proxmox Systèmes : Linux (RedHat, CentOS, Oracle Linux, Debian…) Base de données : PostgreSQL Haute disponibilité : DRBD, Pacemaker Supervision & ITSM : Centreon, GLPI Réseaux : TCP/IP, VLAN, routage, DNS Sécurité : Firewall, VPN

Notre client recherche un Expert Réseau spécialisé en intégration et en pratiques NetOps pour intervenir au sein de sa cellule d'expertise sur ses infrastructures et services réseau. La mission consiste à intégrer, automatiser et industrialiser les configurations réseau, tout en garantissant la disponibilité, la sécurité et la performance des environnements. Mission : Concevoir et intégrer de nouvelles architectures et solutions réseau. Préparer, déployer et valider les configurations des équipements. Réaliser les migrations et les mises en production. Automatiser les opérations réseau dans une démarche NetOps. Développer et maintenir des scripts, playbooks et workflows d'automatisation. Intégrer les changements réseau dans des chaînes Git et CI/CD. Participer à l'industrialisation des procédures de déploiement, de contrôle et de retour arrière. Diagnostiquer et résoudre les incidents complexes de niveau 3. Analyser les performances et proposer des actions d'amélioration. Mettre en place des contrôles de conformité et de sécurité des configurations. Produire et maintenir les dossiers d'architecture, procédures d'exploitation et documents de mise en production. Collaborer avec les équipes architecture, sécurité, systèmes, exploitation et projets. Assurer le transfert de compétences vers les équipes opérationnelles. Compétences techniques : Expertise des réseaux LAN, WAN, Wi-Fi, routage et switching. Bonne maîtrise des protocoles réseau : TCP/IP, VLAN, STP, OSPF, BGP, VRF, MPLS et QoS. Expérience des environnements de haute disponibilité et des infrastructures critiques. Maîtrise d'un ou plusieurs constructeurs réseau, par exemple Cisco, Aruba, Fortinet ou équivalent. Connaissance des technologies de sécurité réseau : firewall, VPN, segmentation, filtrage et contrôle d'accès. Expérience des démarches NetOps, Infrastructure as Code et automatisation réseau. Maîtrise d'outils tels qu'Ansible, Git, Python, API REST, YAML et JSON. Connaissance des chaînes CI/CD et des principes de gestion de versions. Expérience des outils de supervision, de métrologie et de gestion des configurations. Capacité à réaliser des recettes techniques, tests de non-régression et plans de retour arrière. Livrables attendus : Dossiers de conception et d'intégration. Configurations et modèles standardisés. Scripts et playbooks d'automatisation. Plans de tests et procès-verbaux de recette. Procédures de déploiement et de rollback. Documentation d'exploitation et dossiers de mise en production. Comptes rendus d'intervention et recommandations techniques.

En tant qu'Ingénieur Réseau (F/H) avec rôle de référent technique, vous serez en charge de l'ensemble des infrastructures réseau. Vous interviendrez à différentes étapes des productions techniques liées aux affaires dans le domaine réseau et aurez un rôle de référent technique pour la Direction. Vous intégrerez la Direction Technique et Systèmes d'Information, plus précisément le Département Numérique et Cybersécurité. Vous serez rattaché au responsable de l'Administration des SI. Vos missions seront articulées autour d'activités Build & Run de l'environnement de Commutation / Routage / sécurité (Firewall). Build (conception et évolution) : Concevoir et faire évoluer les architectures LAN/WAN, accès distants clients et sites distants Rédiger la documentation technique (dossiers d'architecture, dossiers d'exploitation, dossiers d'intégration, gestion du parc réseau) Assurer la sécurisation et le durcissement des équipements Participer aux chiffrages des nouvelles architectures (matériel et main d'œuvre) Effectuer une veille technique en collaboration avec les fournisseurs Rechercher des pistes d'automatisation (ex : sauvegarde) MCO (Maintenance et Exploitation) : Assurer le maintien en conditions opérationnelles (MCO) : diagnostic, optimisation, pilotage des cycles de vie (matériel, licences), adaptation du routage et des règles de filtrage, sauvegarde Maintien en conditions de sécurité (MCS) : montée de versions, évolution du chiffrement, mise en place des plans d'amélioration liés à la sécurité Affaires : Participer aux phases d'avant-vente et d'études pour définir et concevoir les infrastructures réseau dans le cadre de projets clients

IT Support Technician – UK Our Client is an Entertainment, a live entertainment platform that owns and operates over 100 major music festivals in the UK, Europe and Australia. They are looking to hire an IT Support Technician to work within the UK division of the business. This role offers a self-starting candidate the ability to support a dynamic and fast-growing business, with future opportunities for personal development and career growth within the group. The IT Support Technician will report to the Director of Information Technology, and will support users both at global head office in Central London and in our operating businesses across the UK. The role will be instrumental in ensuring that users benefit from the highest standards of service, including with regards to information security, system availability and change management. Our current core tech stack consists of MS365 + Azure AD, box.com, Airtable, Zoom (+ Zoom Phone), Slack and Salesforce and we support user access to Google Workspace together with various other line of business products. Prior experience administering Azure Active Directory tenancies would be particularly valuable, together with exposure to deployment and maintenance of security tools such as endpoint management and anti-virus. We support both Windows and Mac devices and our users access our services both on corporate machines and BYOD. We are 100% cloud native with no on-premises systems. Specific tasks will include: First line support for users both in person and via support channels. Resolve or escalate issues Hardware setup and configuration, patching and upgrades Support audio-visual / conference room equipment and printers Monitoring and maintaining local networking equipment such as access points, firewalls etc Responsible for maintenance and upkeep of our backup Infrastructure, including laptops and relevant server(s) and other designated cloud backup locations. Provide timely report to senior management on progress of dedicated tasks, or on-going activities. Configuration and monitoring of core systems Administration for IT processes such as: Support ticketing Equipment inventories Hardware purchases, repairs and disposals Joiner-Mover-Leaver process Managing license count Assisting with change projects such as data migration, office reconfiguration and platform or service changes Personal Attributes: Detail and precision in aspects of approach to tasks Ability to prioritise conflicting workflows Team player, ability to communicate effectively with non-technical users and senior management Excellent presentation and time keeping Experience 3 years experience in equivalent setting Microsoft Office 2019+ support essential Mac (iOS) support exposure desirable Exposure to endpoint device management systems desirable S Azure support essential Good documentation and analytical skills, with a passion for end-user satisfaction. Evidence of commitment to training and knowledge The Client is based in Central London with some attendance at operating business offices elsewhere in London and across the UK. You will be required to work in the office at least 3 days per week. The salary is in the range £30K - £45K. Do send your CV to us in Word format along with your daily rate and availability.

Notre client, acteur majeur du secteur Défense, recherche son futur Administrateur Réseau confirmé (H/F) pour son site de Blagnac, dans le cadre d'un renforcement de ses équipes infrastructure. Vos missions : Intégré à une équipe infrastructure réseau, vous devrez : * Assurer l'administration et le maintien en conditions opérationnelles des réseaux LAN/WAN * Configurer et exploiter les équipements réseau (switchs, routeurs, firewalls) * Gérer les incidents et problèmes de niveau N2/N3 * Participer aux projets d'évolution et d'architecture réseau * Garantir la sécurité des infrastructures et des flux réseau * Contribuer à la supervision et à l'optimisation des performances * Rédiger et maintenir la documentation technique Les compétences techniques * Maîtrise des environnements LAN / WAN * Administration d'équipements réseau (type Cisco, Fortinet ou équivalent) * Bonne expérience en troubleshooting réseau * Connaissances en sécurité réseau (VPN, filtrage, segmentation) * Outils de supervision (type Centreon, Nagios, PRTG…) appréciés