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Freelance
CDI

Offre d'emploiIngénieur NetDevOps (H/F)

QODEXIA
Publiée le
Ansible
API REST
Gitlab

10 jours
Nantes, Pays de la Loire
QODEXIA est une société de services informatiques implantée en France et en afrique du nord. Partenaire performant, innovant, agile pour aider les entreprises dans leur transforamtion digitale. QODEXIA s'est spécialisée dans le digital, SAP et les nouvelles technologies, accompagne au quotidien les plus grands acteurs de l'industrie, de l'énergie, du Luxe, de la Banque et de l'Assurance sur leurs projets. L'IT est notre passion, les valeurs humaines sont notre capital, c'est de quoi notre ADN est composé. Pour le compte de l'un de nos client grands comptes basé sur Nantes, nous sommes à la recherche de 2 Ingénieurs NetDevOps — Automatisation Réseaux & Sécurité DSI i-TEAM — Direction Services Télécom, Réseau et Sécurité (STRS) Télétravail Présence minimum de 2 jours par semaine sur site Expérience entre 3 et 7 ans minimum Démarrage Octobre 2026 Le besoin se situe au sein du département Services aux Architectures Réseau, dans le pôle SAT — Stratégie et Appui Technique. La mission porte sur la construction et l'industrialisation d'une plateforme d'automatisation transverse destinée aux équipes Réseau et Sécurité. L'objectif est de développer des workflows fiables et réutilisables afin d'améliorer la productivité, de sécuriser les changements d'infrastructure et de réduire les délais de mise en production. La plateforme cible s'appuie notamment sur Infrahub comme source de vérité, Semaphore UI pour l'orchestration, GitLab pour la gestion du code et la CI/CD, ainsi qu'une future brique d'API Management. Les ingénieurs interviendront sur des cas d'usage variés, potentiellement transverses et complexes, au bénéfice des différentes équipes techniques de la STRS. 3. Détail des missions ▶ Cadrage et priorisation ▸ Participer à l'identification, au cadrage et à la priorisation des cas d'usage à automatiser ▸ Analyser les besoins des équipes Réseau et Sécurité et qualifier leur faisabilité technique ▸ Identifier les cas d'usage transverses ou complexes nécessitant une expertise renforcée ▶ Développement et industrialisation ▸ Conseiller et assister les équipes dans le développement de leurs workflows d'automatisation ▸ Développer directement les cas d'usage transverses ou complexes ▸ Mettre en œuvre des développements robustes, réutilisables et compatibles avec les standards de production ▸ Contribuer à l'intégration du code dans GitLab et à l'industrialisation via la CI/CD ▶ Standards, qualité et accompagnement ▸ Participer à la définition des standards et bonnes pratiques de développement et d'utilisation de la plateforme ▸ Contrôler l'application de ces standards par les équipes ▸ Produire et maintenir la documentation technique associée ▸ Accompagner et former les équipes Réseau et Sécurité à l'adoption des pratiques NetDevOps ▸ Vulgariser les bonnes pratiques et faciliter leur appropriation par les équipes d'exploitation et d'ingénierie ▶ Environnement technique ▸ Infrahub — source de vérité / gestion des données d'infrastructure ▸ Semaphore UI — orchestration des workflows ▸ GitLab — gestion de code et CI/CD ▸ Python, Ansible, APIs REST et GraphQL ▸ Réseaux et sécurité : LAN, WAN, switching, firewalling, load-balancing, DNS ▸ Environnements de production sécurisés, supervision et services d'infrastructure 24/7 4. Compétences requises Les compétences ci-dessous sont classées selon leur niveau d'exigence dans le CDC.
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CDI

Offre d'emploiIT Infrastructure Support Engineer

Nexus Jobs Limited
Publiée le

£35k-45k
Grand Londres, Royaume-Uni
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.
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CDI

Offre d'emploiIT Infrastructure Engineer 2nd and 3rd Line with Japanese

Nexus Jobs Limited
Publiée le

£40k-50k
Grand Londres, Royaume-Uni
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.
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CDI

Offre d'emploiSenior Network Engineer with Security and Cisco – City London

Nexus Jobs Limited
Publiée le

£60k-70k
Grand Londres, Royaume-Uni
Senior Network Engineer with Security and Cisco – City London Our Client urgently requires a Senior Network Engineer with heavy background in Network Security on Cisco and Microsoft. The security and support of the company's network is paramount. Predominately a support role (BAU) with design of scalable solutions deliverable through projects. Encompassing numerous technologies that benefit high-availability solutions. This role requires a responsible individual who can design and deliver secure networking solutions. Fast thinker who can diagnose, assist others and remediate BAU support issues. Main Aspects of the role: -Work within Infrastructure team in supporting and delivering all aspect of BAU and support services -Design, build and implement firewall solutions from perimeter to DMZ roles -Support IPS deployment for European branches -Develop, maintain and deliver global standards to all networking devices -Remediate Penetration Test results -Ensure seamless migration of network estate to newly adopted security framework General Skills -Experience working within mission-critical environments -Experience in operational deployments -Datacentre cabling and racking of equipment Technical Skills you need to bring to the table: -In-depth knowledge of CISCO including firewalls, switches and routing protocols -In-depth knowledge of supporting a data-centre and branch inter-connectivity -Strong technical skills are essential -Experience of CISCO multi-layer switches and routers, including 6500s -CISCO certification, ideally CCNP -CISCO CSM -VLAN segregation -McAfee HIPS, Trend Micro -Centralised authentication service (AAA) -SafeNet Ethernet Encryptor -RADIUS / RSA -Security certification (advantageous) You will also need to an understanding of the following technologies: VLAN segregation. DMZ. VSS. Failover. OSPF. High availability. CISCO. Palo Alto. Juniper. McAfee IPS. SafeNet. Tripwire. You will ideally be coming with experience from a City based investment bank. Salary for this role is between £60K and £70K plus banking benefits. Please send your CV to us in Word format.
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CDI

Offre d'emploiSenior Network Specialist with Security and Cisco – City London

Nexus Jobs Limited
Publiée le

Grand Londres, Royaume-Uni
Senior Network Specialist with Security and Cisco – City London Our Client urgently requires a Senior Network Specialist with heavy background in Network Security on Cisco and Microsoft. The security and support of the company's network is paramount. Predominately a support role (BAU) with design of scalable solutions deliverable through projects. Encompassing numerous technologies that benefit high-availability solutions. This role requires a responsible individual who can design and deliver secure networking solutions. Fast thinker who can diagnose, assist others and remediate BAU support issues. Main Aspects of the role: -Work within Infrastructure team in supporting and delivering all aspect of BAU and support services -Design, build and implement firewall solutions from perimeter to DMZ roles -Support IPS deployment for European branches -Develop, maintain and deliver global standards to all networking devices -Remediate Penetration Test results -Ensure seamless migration of network estate to newly adopted security framework General Skills -Experience working within mission-critical environments -Experience in operational deployments -Datacentre cabling and racking of equipment Technical Skills you need to bring to the table: -In-depth knowledge of CISCO including firewalls, switches and routing protocols -In-depth knowledge of supporting a datacentre and branch interconnectivity -Strong technical skills are essential -Experience of CISCO multilayer switches and routers, including 6500s -CISCO certification, ideally CCNP -CISCO CSM -VLAN segregation -McAfee HIPS, Trend Micro -Centralised authentication service (AAA) -SafeNet Ethernet Encryptor -RADIUS / RSA -Security certification (advantageous) You will also need to an understanding of the following technologies: VLAN segregation. DMZ. VSS. Failover. OSPF. High availability. CISCO. Palo Alto. Juniper. McAfee IPS. SafeNet. Tripwire. This is a contract role for up to 18 months to start immediately. Please send your CV to us in Word format.
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Les métiers et les missions en freelance pour Firewall

Consultant·e en cybersécurité

Le/ La consultant·e en cybersécurité utilise les firewalls pour analyser les vulnérabilités, recommander des solutions de protection et implémenter des politiques de sécurité afin de protéger les infrastructures des entreprises contre les attaques.

Ingénieur·e en cybersécurité

L'ingénieur·e en cybersécurité configure, surveille et optimise les firewalls pour protéger les réseaux et systèmes d’information contre les menaces externes et internes.

Administrateur·rice réseaux

L'administrateur·rice réseaux configure les firewalls dans le cadre de la gestion des réseaux pour garantir leur sécurité et prévenir les intrusions non autorisées.

Responsable sécurité informatique (CISO)

Le/ La responsable sécurité informatique supervise la gestion des firewalls dans une organisation, assurant une protection optimale des données sensibles et la conformité aux normes de sécurité.

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