Trouvez votre prochaine offre d’emploi ou de mission freelance Routing & Switching (R&S)

Network Developer Must have an active DV Clearance Network Developer Responsibilities Design and develop network solutions to meet evolving customer requirements. Deliver technical changes across global WAN and LAN environments. Configure, support, and troubleshoot network devices across complex infrastructures. Produce and maintain technical documentation including LLDs, Build Guides, and Work Instructions. Liaise with third-party vendors to investigate and resolve technical issues. Support IT Health Check activities and remediate identified vulnerabilities. Provide 3rd and 4th line support for live operational services. Contribute to service improvement, incident resolution, and technical assurance activities. Network Developer Skills and Experience Strong experience designing and implementing secure network solutions. Good knowledge of WAN routing and LAN switching technologies. Experience with MPLS, BGP, IPSec, GRE, and encryption technologies. Strong network troubleshooting and defect resolution capability. Experience configuring enterprise networking equipment. Ability to produce high-quality technical documentation. Experience working with third-party technology suppliers. Understanding of security best practice and vulnerability remediation. Experience supporting operational services within highly secure environments. 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.

IT Infrastructure Engineer Our Client is a Global organisation with offices in the City of London. They are now looking to recruit an IT infrastructure system support and maintenance Engineer with at least 5 years experience in 1 to 3 level experience in support. You will be working with users using Japanese and English, working closely with related parties to ensure a coordinated approach to IT infrastructure support and projects. IT Infrastructure Engineer IT Infrastructure related project Communicate and coordinate with the person in charge of the project in HQ (in Japanese) Communicate and coordinate with the user in each office (in English) Provide support for to end users during system deployment/migration(User manual, user training) Global User Support Act as 2/3 line support for IT infrastructure related enquiries and incidents. Escalate the incidents to the appropriate vendors. Incident management with the ticketing system (etc. ServiceNow). Skills / Knowledge: Technical Proven working experience in IT Service management operations Basic network knowledge (e.g. TCP/IP, proxy, firewall, switching, routing and WiFi) Basic operation system knowledge (e.g. Windows10, Windows server, Azure) Basic Microsoft Office 365 knowledge Second line level technical support and problem-solving skill Candidate needs to have strong interpersonal communication skills Ability to work both independently and as part of a team. Adoptability to work in a fast-changing environment Strong written and verbal communication skills Proficient in English & Japanese language skills (Reading/Writing/Speaking). User facing support skills Self-motivated and an innovative mindset Experience: 3 to 5+ years IT experience in a corporate environment. Second line technical support System Maintenance Microsoft Windows, Windows Server, Virtual desktop, Microsoft365 Cisco/Fortinet Project management experience preferred. The salary for this position will be in the range £35K - £45K. The Client is based in the City of London. Do send your CV to us in Word format along with your salary and notice period.

IT Infrastructure Engineer 2 and 3 Line with Japanese Our Client an global company are looking to recruit an IT Support Engineer with 2 and 3 Line experience. You must be able speak in both English and Japanese. IT infrastructure system support and maintenance. Liaison with end user using Japanese and English, working closely with related parties to ensure a coordinated approach to IT infrastructure support and projects. Key Responsibilities: IT Infrastructure Engineer IT Infrastructure related project Communicate and coordinate with the person in charge of the project in HQ (in Japanese) Communicate and coordinate with the user in each office (in English) Provide support for to end users during system deployment/migration(User manual, user training) Global User Support Act as 2/3 line support for IT infrastructure related enquiries and incidents. Escalate the incidents to the appropriate vendors. Incident management with the ticketing system (etc. ServiceNow). Skills / Knowledge: Technical Proven working experience in IT Service management operations Basic network knowledge (e.g. TCP/IP, proxy, firewall, switching, routing and WiFi) Basic operation system knowledge (e.g. Windows10, Windows server, Azure) Basic Microsoft Office 365 knowledge Second line level technical support and problem-solving skill Communication Candidate needs to have strong interpersonal communication skills Ability to work both independently and as part of a team. Adoptability to work in a fast-changing environment Strong written and verbal communication skills Proficient in English & Japanese language skills (Reading/Writing/Speaking). User facing support skills Self-motivated and an innovative mindset Experience: 3+ years IT experience in a corporate environment. Second line technical support System Maintenance Microsoft Windows, Windows Server, Virtual desktop, Microsoft365 Cisco/Fortinet Project management experience preferred. The position is based in the City of London. The salary will be £40K - £50K. Do send your CV to us in Word format along with your salary and notice period.

Network Support Analyst with Cisco CCNA – City London Our Client is looking to recruit a Network Support Analyst with Cisco CCNA – you must have at least 5 years proven track record. This is a support role (BAU) with involvement in design of scalable solutions deliverable through projects. Encompassing numerous technologies that benefit high-availability solutions. Fast thinker who can diagnose, assist others and remediate BAU support issues. Maintain documentation and networking diagrams for both support and stringent internal audits. This role requires a responsible individual who can support to root cause analysis. Key duties - Work within Infrastructure team in supporting and delivering all aspect of services - BAU encompassing networks, telephony, PABX, voice recording, desk moves and changes - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of firewall solutions from perimeter to DMZ roles - Support IPS deployment for European sites - Develop, maintain and deliver global standards to all networking devices - Interpret network security reports - Assist with seamless migration of network estate to newly adopted security framework - Facilitate internal/external Audits and Penetration Testing. Remediation - Treasury solutions such as IPC turrets General Skills -Experience working within mission-critical environments -Experience in operational deployments -Maintains required industry recognised skills through training and self-study methods Technical Skills -In-depth knowledge of CISCO including firewalls, switches and routing protocols -In-depth knowledge of supporting a datacentre with branch interconnectivity (LES circuits) -CISCO certification, required CCNA -VPN technologies (IPSEC) -Security certification (advantageous) Technologies Layer 2 Switching, Layer 3 Routing, VPN IPSEC & SSL, TACACS, RADIUS, NAT/PAT, VSS. High availability, including failover technologies and first hop redundancy protocols. The Client is based in the City in London close to Liverpool Street. Salary for this position will be in the range £45K - £55K plus banking benefits. Please send your salary to us in Word format along with your salary and availability.

Lieu : Paris Sud-Ouest TJM : 400 à 450 € / jour Rythme : 100 % sur site | Pas de télétravail Nous recherchons pour notre client, acteur reconnu du secteur des services, un Administrateur Systèmes & Réseaux afin de renforcer l’équipe Infrastructure de sa Direction des Systèmes d’Information. VOS MISSIONS : Intégré(e) à l’équipe Infrastructure et rattaché(e) au Responsable Infrastructure & Support, vous intervenez sur l’administration, l’exploitation, l’évolution et la sécurisation des infrastructures informatiques. Exploitation et administration de l’infrastructure Garantir le bon fonctionnement, la disponibilité et la continuité de service des infrastructures IT ; Administrer, maintenir et superviser les environnements serveurs, réseaux, postes de travail, solutions cloud et outils collaboratifs ; Assurer la supervision des infrastructures (serveurs, réseaux, stockage) et intervenir en cas d’incident ; Gérer les sauvegardes, les mises à jour ainsi que les plans de continuité d’activité ; Administrer les environnements Microsoft : Microsoft 365, Entra ID (Azure AD), Exchange Online, SharePoint, Teams, Intune ainsi que les tenants Azure ; Gérer les comptes utilisateurs, les droits d’accès et les politiques de sécurité ; Développer et maintenir des scripts PowerShell complexes afin d’automatiser les tâches d’administration. Sécurité des systèmes d’information Appliquer et faire évoluer les politiques de sécurité informatique ; Identifier les vulnérabilités des systèmes, réseaux et environnements cloud, puis mettre en œuvre les actions de remédiation ; Participer au durcissement des infrastructures et aux audits de sécurité ; Gérer les incidents de sécurité et assurer leur suivi jusqu’à leur résolution ; Sensibiliser les utilisateurs aux bonnes pratiques de cybersécurité. Projets d’évolution et amélioration continue Participer aux projets techniques (migration, modernisation, automatisation, sécurisation des infrastructures) ; Assurer le cadrage technique, le déploiement, la coordination et le reporting des projets confiés ; Être force de proposition pour améliorer les performances, la fiabilité et la sécurité du système d’information ; Assurer une veille technologique active afin d’anticiper les évolutions des infrastructures et des solutions Microsoft. Support et coordination Prendre en charge les incidents techniques de niveau 2 et 3 sur les environnements systèmes, réseaux et cloud ; Diagnostiquer les incidents complexes et mettre en œuvre les solutions adaptées ; Apporter un renfort ponctuel au support de proximité lorsque nécessaire ; Accompagner les utilisateurs et contribuer à leur montée en compétences ; Assurer la coordination avec les prestataires et partenaires techniques externes. Documentation et capitalisation Rédiger et maintenir la documentation technique ainsi que les procédures d’exploitation ; Produire des rapports d’activité, comptes rendus d’intervention et synthèses sur l’état des infrastructures ; Mettre à jour les référentiels techniques et contribuer à la capitalisation des connaissances. Environnement technique : - Systèmes : 9 Windows Server 2022, 2 Debian 11, 450 postes Windows 10 & 11 - Cloud : Microsoft Azure - Microsoft 365 : Exchange Online, SharePoint, Teams, Intune, Entra ID (Azure AD) - Bases de données : Microsoft SQL Server 2022 - Supervision & ITSM : Centreon, GLPI - Réseaux : Cisco, MPLS - Scripting : PowerShell - Méthodologie : ITIL

L'architecte technique réseaux sécurité est en charge de définir les solutions techniques en réponse aux besoins métiers, il rédige la documentation HLD, qui permettra à l'équipe de mise en œuvre de réaliser l'intégration. Il assure le suivi de la relation fournisseur, pour aider à l'amélioration des solutions et réaliser la veille technologique, il définit et communique le cycle de vie des solutions de références, nécessaire à l'exercice de gestion de l'obsolescence. Il est en support des équipes de mise en œuvre, avec qui il valide en lab les évolutions matérielles et logicielles pour mettre à jour le catalogue des produits de référence. Technologies indispensables : Architecture LAN DC : VXLAN/EVPN Architecture LAN DC : Arista Cisco Switching Routing OSPF BGP Loadbalancing : F5 Palo Alto Fortinet Rédation de documentation technique Gestion des référentiels Produits Reporting Firewall : Checkpoint

Dans le cadre d’un programme de transformation IT/OT industrielle, nous recherchons un Ingénieur Réseau Senior / SDN afin de contribuer activement à la conception, la validation et l’implémentation de solutions de connectivité réseau sécurisées. La mission s’inscrit dans un environnement critique, avec une forte exigence en termes de delivery et de production de livrables concrets. Le consultant interviendra en étroite collaboration avec les équipes Infrastructure, Cybersécurité, Plateforme, DevOps et Applicatives. Vos principales responsabilités seront les suivantes : Concevoir et implémenter des architectures réseau sécurisées dans des environnements IT/OT industriels Définir, analyser et valider les flux réseau entre applications, plateformes et infrastructures Intervenir sur les sujets de VLAN, routage, trunking, firewalling, DNS, DHCP, proxy, certificats et TLS Participer aux projets de segmentation réseau et de zonage de sécurité (approche “secure by design”) Contribuer à l’implémentation et au support de solutions SDN Accompagner les besoins réseau liés aux plateformes conteneurisées Kubernetes et OpenShift (ingress, egress, network policies, load balancing) Diagnostiquer et résoudre les incidents réseau complexes multi-couches (réseau, plateforme, applicatif) Produire les livrables techniques : matrices de flux, schémas d’architecture, documentation d’exploitation Participer aux phases de mise en production et au transfert de compétences vers les équipes d’exploitation Livrables attendus : Matrices de flux réseau et validation de connectivité Documentation d’architecture réseau et recommandations techniques Schémas techniques (HLD / LLD) Analyses de risques et écarts Support à la remédiation (segmentation, routage, DNS, proxy, firewall) Documentation de transfert vers les équipes RUN Compétences attendues Expertise en routage (BGP, OSPF), switching, VLAN, trunking Maîtrise du firewalling et de la gestion des flux réseau Solide expérience en segmentation réseau et zonage de sécurité Bonne maîtrise DNS, DHCP, proxy, certificats et protocoles TLS Maîtrise impérative des environnements Kubernetes et OpenShift (réseau, ingress/egress, network policies, load balancing) Bonne compréhension des architectures SDN et de leur implémentation Capacité à diagnostiquer des incidents complexes multi-domaines Excellent relationnel et capacité à collaborer avec des équipes pluridisciplinaires

Network Support Analyst - Cisco CCNA – European Bank - City London Our Client is looking to recruit a Network Support Analyst with Cisco CCNA – you must have at least 4 to 7 years proven track record. This is a support role supporting Business As Usual (BAU) with involvement in design of scalable solutions deliverable through projects. Encompassing numerous technologies that benefit high-availability solutions. Fast thinker who can diagnose, assist others and remediate BAU support issues. Maintain documentation and networking diagrams for both support and stringent internal audits. This role requires a responsible individual who can support to root cause analysis. Key duties - Work within Infrastructure team in supporting and delivering all aspect of services - BAU encompassing networks, telephony, PABX, voice recording, desk moves and changes - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of firewall solutions from perimeter to DMZ roles - Develop, maintain and deliver global standards to all networking devices - Interpret network security reports - Assist with seamless migration of network estate to newly adopted security framework - Facilitate internal/external Audits and Penetration Testing. Remediation Technical Skills -In-depth knowledge of CISCO including firewalls, switches and routing protocols -In-depth knowledge of supporting a datacentre with branch interconnectivity (LES circuits) -CISCO certification, required CCNA -VPN technologies (IPSEC) -Security certification (advantageous) Technologies Layer 2 Switching, Layer 3 Routing, VPN IPSEC & SSL, TACACS, RADIUS, NAT/PAT, VSS. High availability, including failover technologies and first hop redundancy protocols. Simply this is a 1, 2 and 3 Line Network Support position – ensuring that the applications and services that the Client has are supported and operational. The Client is based in the City in London close to Liverpool Street. Salary for this position will be in the range £45K - £60K plus banking benefits. Please send your salary to us in Word format along with your salary and availability.

Network Security Engineer Scunthorpe, North Lincolnshire (Hybrid, 3 days onsite / 2 remote) Hybrid - 3 in, 2 from home Up to £65,000 per annum + funded training and certifications + good pension + 27 days holiday + bank holidays + life assurance + company sick pay + health cash plan + employee assistance programme + enhanced family-friendly benefits. Are you an experienced Network Security Engineer looking to take ownership of enterprise firewall platforms while shaping the long-term security architecture within a complex, multi-site environment? This is a hands-on, technically focused role within a well-established IT Infrastructure team, where you will lead on the design, implementation, and optimisation of firewall technologies. You will play a key role in securing both IT and operational technology environments, ensuring high availability and robust network protection. You will be responsible for day-to-day firewall operations, troubleshooting complex issues, and leading changes across production environments. Alongside this, you will collaborate closely with infrastructure, OT, and application teams to deliver secure, resilient connectivity and support ongoing projects including upgrades, migrations, and new site deployments. The ideal candidate will bring strong enterprise firewall experience, ideally with Palo Alto, alongside a solid networking background across Cisco and Aruba environments. You will be confident working under operational pressure, managing third-party vendors, and contributing to continuous improvement of firewall policies, standards, and overall network security posture. The Role: Operate and maintain enterprise firewall platforms across IT and OT networks Design and implement firewall rules, NAT, segmentation, and secure connectivity Lead troubleshooting and act as escalation for complex network security issues Deliver firewall and network projects including upgrades and deployments Collaborate with internal teams and oversee third-party network changes The Person: Strong experience with enterprise firewalls, ideally Palo Alto Solid networking background across routing, switching, Cisco and Aruba Experience with NAC solutions such as Aruba ClearPass or Cisco ISE Proven ability to manage firewall policies, VPNs, and segmentation Experience supporting complex, multi-site or high-availability environments Strong troubleshooting skills and operational discipline Reference Number: BBBH276145 Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.

Senior Network Engineer 2 Year FTC Scunthorpe, North Lincolnshire Hybrid - 3 days in, 2 from home Up to £68,500 + great pension + 27 days holiday + bank holidays + life assurance + health cash plan + company sick pay + EAP + standby and call-out payments + excellent training and development opportunities. Are you an experienced Network Engineer looking for a varied role where you can take ownership of a multi-site infrastructure, influence technical design, and play a key part in delivering secure, high-performing network solutions? This is a hands-on position combining operational support with project delivery and solution design. You will be responsible for maintaining a complex multi-site network, ensuring performance, availability, and security across LAN, WAN, and wireless environments, while also contributing to continuous improvement initiatives. You will work closely with internal teams and third-party vendors, providing technical guidance and challenging solutions where needed to ensure they meet business and security requirements. Alongside this, you will support network-related projects and implement upgrades in line with change control processes. The role would suit someone with strong enterprise networking experience, confident in troubleshooting, documentation, and design input. In return, you will benefit from a supportive environment that invests in professional development and offers a comprehensive benefits package. The Role: *Support and maintain a multi-site network infrastructure across LAN, WAN and wireless *Diagnose and resolve incidents, carrying out root cause analysis *Implement network changes, upgrades, and improvements *Contribute to network design and review vendor proposals *Monitor network performance, capacity, and resilience The Person: *Strong experience in multi-site enterprise networking environments *Solid knowledge of routing, switching, VPNs, and network security *Hands-on experience with Cisco and Aruba technologies, including ClearPass *Experience working with firewalls such as Palo Alto or Fortinet *Strong troubleshooting, documentation, and communication skills Reference Number: BBBH276136 Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.

Network Engineer London - Hybrid £50,000 - £60,000 + Private Medical + Cash Plan + Progression + Life Insurance + Pension + More Are you an experienced Network Engineer looking for the next step in your career and can speak fluent Mandarin? Do you want to join a global business where you can be a part of some incredible projects with variety and excitement? On offer is the chance to join a global business with over 13 offices worldwide, including Asia, America and of course the UK. With a great work culture, you will be working on cutting edge technology, whilst being given the necessary tools to reach your full potential. In this role, you will collaborate with the network team to manage and maintain hundreds of POP networks with dozens of international service providers. This will involve daily operations, BGP optimisation, POP build out and redesign, and ISP coordination, among other things. The ideal candidate should have a degree or equivalent in a technical field and experience in administering large-scale service networks whilst being CCNP certified. You should possess hands-on experience with BGP networks, strong knowledge of Internet protocols and Ethernet troubleshooting tools, as well as experience in routing and switching. Strong knowledge with TCP/IP, HTTP, VPN etc will be required. You will need to be fluent in English and Mandarin. This is an excellent opportunity to join a world leading business where you will feel part of a team and be able to learn, grow and develop your career to new heights whilst showcasing your skills and experience. The Role: Collaborate with the network team Manage and maintain hundreds of POP networks Work with dozens of international service providers Perform daily operations Optimise BGP Participate in POP build out and redesign Coordinate with ISPs The Person: Degree or equivalent in a technical field CCNP Certified Experience in administering large-scale service networks Hands-on experience with BGP networks Strong knowledge of Internet protocols and Ethernet troubleshooting tools Experience in routing and switching Strong knowledge of TCP/IP, HTTP, VPN, etc. Fluency in Mandarin Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.

Our Telecoms client is looking for a Project Network Engineer to join their team in Glasgow. This is a 6 months contract initially and the role is outside IR35. The role is hybrid with 2 days per week working onsite in Glasgow. Key responsibilities: * Create and maintain technical documentation and ensure customer networks are documented as part of project handovers * Install, configure, fault find, report and maintain routers, switches and firewalls * Completion of site surveys to enable installation * Rack, charger and telecoms equipment installation and commissioning to an excellent standard * Create Health and Safety documentation such as RAMS, POWRA to ensure H&S measures are adhered to. Required experience: * Proven experience in monitoring, maintaining, and troubleshooting network and system environments. * Strong background in IP networking, including CCNA-level knowledge, WAN, LAN, and MPLS. * Hands-on experience with Nokia platforms, including Nokia SAR-H and Nokia NFM-P. * Excellent understanding of routing, switching, and data networking principles. * Experience working with XTran technology. * Proficient in using Microsoft Visio for network and technical diagramming. 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. A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive 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.

DevOps Senior Operations Engineer Our Client is looking to recruit a Senior DevOps Engineer with at least 5 to 7 years expertise. They are a young talented team building the next generation video advertising platform. The key purpose of this role is focused on development in the capacity of improvements to the systems and operational environment by scripting, automation or building of tools. There are several key areas that require constant development: • Automation – Enhancements to the automation build process. Enhancements are continuously added to the base repository as well as additions of new technologies. • Scripting and Tools – There are many processes, tasks that can be made easier using scripts or custom designed tools in a managed services environment. We are looking for someone with knowledge of networking and storage, virtualization and operating systems, as well as good knowledge of the Architecture side of the role. Ideal skills and experience - what are you bringing to the party? • Experience working in operations - making sure the wheels are greased and the ship is humming along • Automation, Packaging, Deployments (Custom Hypervisor, Puppet, Git, scripting, CI services) • Source Code version control systems: Git & SVN • Monitoring: NewRelic, PagerDuty, etc • Programming Languages: Bash, PHP, GoLang • Virtualisation: We have a custom hypervisor (ZPF) but things like VMWare ESXi/KVM/oVirt/RHEV • Classics: Apache, MySQL, Redis, Varnish • Logstash & Elasticsearch • Networking (switching, routing, firewalls, IDS/IPS, VPN, load balancing, DNS, Cisco, F5, Akamai) • Multi cloud setup - AWS, Digital Ocean, Rackspace, Linode etc • DNS, NTP, SMTP, Jenkins • A solid background in Linux System Administration Functions and responsibilities This is a dynamic and varied role, which includes things like: • Build, deployment and maintenance of new and existing environments • Designing and maintaining highly available architectures • Security (patch management, vulnerability scanning & monitoring) • Uptime – design and maintain the systems and networking for uptime, resilience, architecting for failure. • Evaluation of new, cutting-edge technologies to help improve business processes and streamline • Develop highly-available, scalable, robust systems and take ownership of problems as they occur • Undertake ad-hoc out of business hours work for occasional technical support The salary for this role will be in the range £60K - £80K. Please send your CV to us in Word format.

Dans le cadre de projets stratégiques pour un acteur majeur du secteur de l’énergie, vous rejoignez une Core Team ORANO afin de piloter et réaliser des opérations réseau selon les priorités définies par la Factory. Vous intervenez dans un environnement industriel sensible (nucléaire) , nécessitant un haut niveau d’exigence en matière de sécurité, conformité SSI et rigueur opérationnelle . Les projets couvrent des activités d’ingénierie (études) et de déploiement (build) autour de : Refresh d’infrastructures réseau (LAN, WAN, SD-WAN) Interconnexions et sécurisation Firewalling Tests et intégration en LAB (sur site de Cherbourg) Vous êtes en interaction permanente avec les équipes internes client et les partenaires. Vos missions Conception & ingénierie réseau Rédiger des dossiers d’architecture et d’étude (HLD / LLD) Concevoir des solutions LAN, WAN, Wi-Fi et sécurité Assurer les choix techniques adaptés aux contraintes industrielles Déploiement & projets techniques Participer aux projets de modernisation des infrastructures réseau Réaliser l’intégration technique (BUILD) Effectuer les tests en LAB avant mise en production Sécurité & conformité Appliquer les politiques SSI et standards ORANO Garantir la traçabilité, la documentation et le respect des changements Automatisation Contribuer à l’industrialisation via Ansible / Red Hat Pilotage & coordination Assurer le suivi technique et reporting Respecter les plannings et jalons projets Environnement technique Réseaux & sécurité Switching L2/L3 : Cisco, HPE Aruba Firewalling : FortiGate, Stormshield Datacenter : Cisco ACI Wi-Fi : Aruba Protocoles & techno VLAN, STP, routage IP, NAT, VPN SD-WAN F5 (apprécié) Outils & méthodes ServiceNow (ITIL : incidents, changes, CMDB) Documentation HLD / LLD Automatisation Ansible

Lieu : Rennes (35) Salaire : 33/38K€ Rythme : Hybride Nous recrutons, pour le compte de notre client, un acteur industriel du secteur agroalimentaire, un Administrateur Réseaux & Télécoms F/H. Vous intervenez sur l'administration, l'exploitation et l'évolution des environnements réseaux et télécoms de l'entreprise. Votre mission principale consiste à garantir la disponibilité, la performance et la sécurité des infrastructures tout en participant aux projets d'évolution et de modernisation du système d'information. VOS MISSIONS : - Assurer le maintien en condition opérationnelle des infrastructures réseaux et télécoms. - Identifier, analyser et résoudre les incidents ou dysfonctionnements liés aux équipements et services réseau. - Déployer, configurer et administrer les équipements réseau ainsi que les solutions de téléphonie IP. - Gérer et maintenir les infrastructures LAN, WAN et Wi-Fi. - Administrer les services de connectivité et les technologies associées (VLAN, VPN, MPLS, SD-WAN). - Participer aux projets de déploiement, d'extension et d'optimisation des infrastructures. - Superviser les performances du réseau et mettre en œuvre les actions correctives nécessaires. - Contribuer au renforcement de la sécurité des infrastructures et à l'application des politiques de sécurité. - Assurer une veille technologique et proposer des axes d'amélioration en matière de disponibilité, de performance et de cybersécurité. Environnement technique : Administration d'infrastructures réseaux et Wi-Fi en environnement multi-sites. Maîtrise des technologies LAN/WAN (VLAN, VPN, MPLS, SD-WAN). Gestion du plan d'adressage IP et des équipements réseau. Connaissances en téléphonie IP (VoIP). Sécurité : Administration des solutions de sécurité réseau. Mise en œuvre et maintien des politiques de sécurité et du contrôle des accès.

Concevoir des architectures réseaux & sécurité (LAN/WAN, MPLS, DMZ, segmentation) Réaliser les études techniques et dossiers d’architecture (APS/APD/DAT) Intégrer et configurer des équipements de sécurité Participer aux validations techniques et accompagnement déploiement Produire la documentation technique (schémas, matrices de flux, procédures) Participer aux COPIL et assurer le reporting projet Environnement technique Fortinet (FortiGate, FortiManager) Checkpoint Stormshield Juniper Cisco Switching/Routing VPN, IPsec, IDS/IPS, RADIUS, 802.1X BGP, OSPF, MPLS DMZ & segmentation réseau