Trouvez votre prochaine offre d’emploi ou de mission freelance Cisco ASA

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Freelance

Mission freelanceIngénieur Réseau et Sécurité

Comet
Publiée le
Cisco
Cisco ACI
Cisco ASA

218 jours
350-550 €
Île-de-France, France
Bonjour à toutes et à tous, notamment aux Ingénieurs Réseaux & Sécurité Freelance 👨‍💻🌐🔐 🔎 Je cherche un(e) Ingénieur Réseaux & Sécurité pour rejoindre une équipe en charge des Fondations du SI au sein d'un environnement grands comptes. Tu intégreras une équipe Agile responsable de la conception, de l'évolution et du maintien en condition opérationnelle des infrastructures et services réseaux mis à disposition des équipes de développement et des applications de la DSI. 💻 Ce que tu vas faire : Assurer le provisioning, le dépannage, la mise en service et le remplacement des équipements réseaux (Switches, Points d'Accès WiFi, etc.) Administrer et faire évoluer les infrastructures Cisco Nexus, Catalyst et ACI Gérer les flux réseaux, les règles de sécurité et les accès VPN Administrer et assurer le troubleshooting des firewalls Fortinet, Cisco ASA et des solutions de sécurité associées Gérer et maintenir les services DNS, DHCP et les solutions F5 GTM/LTM Administrer le proxy SSE Netskope et gérer les demandes de bypass proxy Assurer le support et la résolution des incidents réseaux complexes Participer à la gestion des liaisons opérateurs WAN et SD-WAN Contribuer à l'amélioration des outils de supervision, d'IPAM et d'automatisation Rédiger et maintenir la documentation technique et les procédures d'exploitation Accompagner les équipes utilisatrices avec une approche orientée service et satisfaction client 🎯 Stack technique : Cisco Nexus / Cisco ACI / Cisco Catalyst / Fortinet / Cisco ASA / Netskope SSE / F5 GTM-LTM / DNS / DHCP / SD-WAN / WiFi Extreme Networks / LibreNMS / NetBox 🕵️‍♂️ Profil recherché : Expérience confirmée en ingénierie réseaux et sécurité Solides compétences en switching, routage IP et troubleshooting réseau Bonne maîtrise des environnements Cisco (Nexus, Catalyst, idéalement ACI) Expérience sur les firewalls Fortinet et/ou Cisco ASA Connaissance des services DNS, DHCP et des solutions F5 Expérience sur les environnements proxy et sécurité réseau Sens du service et capacité à interagir avec différents interlocuteurs techniques et fonctionnels Expérience en environnement Agile appréciée Des compétences en scripting, supervision ou automatisation seraient un plus 🚀 Les plus de la mission : Intervention sur un socle technique stratégique Environnement réseau et sécurité riche et varié Forte diversité technologique Équipe Agile et collaborative Mission mêlant ingénierie, exploitation et amélioration continue 📍 Localisation : Ile de France : 🏡 Rythme hybride 📅 Démarrage : ASAP ⏳ Mission longue durée Qu'en penses-tu ? Si tu es un(e) Ingénieur Réseaux & Sécurité Freelance et que tu souhaites intervenir sur un environnement technique stimulant et à forte visibilité, je serais ravi(e) d'échanger avec toi ! Une belle journée à toutes et à tous ☀️
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Freelance

Mission freelanceExpert Réseau & Sécurité H/F

Le Groupe SYD
Publiée le
Check Point
Palo Alto

18 mois
500-600 €
Niort, Nouvelle-Aquitaine
🌟 Quel sera ton poste ? 🌟 💼 Poste : Expert Réseau & Sécurité H/F 📍 Lieu : Niort (79) 🏠 Télétravail : Présence régulière sur site requise 📝 Contrat : Portage ou CDI 👉 Contexte client : Tu rejoins un acteur majeur dans le cadre d'un programme stratégique de transition et de transformation des infrastructures réseau et sécurité. Dans un contexte de réorganisation, de transfert de compétences et d'évolution technologique, l'objectif est de renforcer temporairement les capacités d'expertise afin d'assurer la continuité des activités opérationnelles, d'accompagner la montée en compétence des équipes internes et de contribuer aux projets d'évolution du périmètre réseau et sécurité. Le prestataire interviendra au sein d'environnements critiques où les enjeux de disponibilité, de sécurité et d'industrialisation sont particulièrement forts. Tu auras pour missions de : Accompagner les experts réseau et sécurité dans leurs activités quotidiennes. Participer au maintien en condition opérationnelle des infrastructures réseau et sécurité. Contribuer à la résolution d'incidents complexes et aux demandes d'expertise. Participer aux transferts de compétences entre les différentes équipes. Formaliser les connaissances, procédures et bonnes pratiques afin de pérenniser les activités. Être force de proposition sur les améliorations techniques, organisationnelles et les démarches d'automatisation. Prendre progressivement en charge une partie des activités RUN et certaines interventions hors horaires ouvrés après montée en compétence. Contribuer à la réduction de la charge des experts afin de soutenir les projets stratégiques. Participer aux projets d'évolution et de sécurisation des infrastructures réseau et sécurité. 🧰 Stack technique : Sécurité périmétrique : Fortinet, Check Point, Palo Alto, Cisco Firepower. Load Balancing & WAF : F5. Contrôle d'accès réseau : Cisco ISE, 802.1X. Réseaux & Sécurité : segmentation réseau, sécurisation des flux, protocoles de sécurité d'entreprise. Automatisation & Industrialisation : Ansible (apprécié) et démarches d'automatisation des opérations réseau et sécurité. Cloud : Microsoft Azure, Scaleway (appréciés). Supervision & Observabilité : Dynatrace, outils de supervision et de métrologie réseau. CASB / DLP : Netskope. VPN : Cisco ASA ou technologies équivalentes.
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CDI

Offre d'emploiInformation Security Manager with Network Engineering Skills

Nexus Jobs Limited
Publiée le

£85k-100k
Grand Londres, Royaume-Uni
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 salary for this role will be in the range £85K - £100K + Benefits. Do send your CV to us in Word format along with your salary and notice period.
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Freelance

Mission freelanceInformation Security Manager with Network Engineering Skills

Nexus Jobs Limited
Publiée le

£500-650
Grand Londres, Royaume-Uni
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.
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Freelance

Mission freelanceExpert Réseau & Sécurité Datacenter – Cisco / Arista

SKILL EXPERT
Publiée le
Arista EOS
BGP (Border Gateway Protocol)
Cisco

12 mois
550-600 €
Île-de-France, France
Contexte Dans le cadre du renforcement de l'équipe en charge des infrastructures Datacenter, nous recherchons un Expert Réseau & Sécurité disposant d'une solide expérience des environnements Datacenter complexes et critiques. L'expert intervient sur l'ensemble du cycle de vie des infrastructures réseau : expertise, exploitation (RUN), intégration, évolution, troubleshooting et opérations en heures non ouvrées (HNO). Il sera notamment référent sur les technologies Cisco et Arista et apportera son expertise sur les architectures réseau Datacenter, la sécurité des flux et la disponibilité des infrastructures. Missions principales 1. Expertise réseau et sécurité Être le référent technique réseau et sécurité sur les infrastructures Datacenter. Concevoir, analyser et faire évoluer les architectures réseau. Garantir la robustesse, la performance, la disponibilité et la sécurité des infrastructures. Réaliser des analyses complexes de performance et de dysfonctionnements réseau. Effectuer les diagnostics et résolutions d'incidents de niveau L3/L4. Participer aux études d'architecture et aux choix techniques. Produire et maintenir la documentation technique et les dossiers d'architecture. Assurer une veille technologique sur les solutions réseau et sécurité Datacenter. 2. Environnement Cisco et Arista Intervenir en expertise et exploitation sur des environnements principalement basés sur : Cisco : Nexus, Catalyst et solutions associées. Arista : plateformes CloudVision / EOS et switches Datacenter. Technologies de routage et switching : BGP, OSPF, IS-IS, VXLAN/EVPN, MLAG/vPC, STP, etc. Architecture Datacenter Spine/Leaf. Segmentation réseau et gestion des VLAN/VRF. Services IP : DNS, DHCP, NTP, IPv4/IPv6. Analyse des flux et troubleshooting réseau. La connaissance des environnements ACI, VXLAN/EVPN et SDN constitue un atout important. 3. Sécurité réseau Participer à la définition et à la mise en œuvre des politiques de sécurité réseau. Administrer et expertiser les mécanismes de filtrage et de segmentation. Participer à la sécurisation des interconnexions Datacenter. Analyser les flux réseau et les problématiques de sécurité associées. Collaborer avec les équipes Cyber/Sécurité sur les sujets de segmentation, durcissement et contrôle des flux. Participer aux analyses d'incidents de sécurité ayant un impact réseau. La connaissance de solutions de sécurité telles que Palo Alto, Fortinet, Cisco ASA/FTD est un plus. 4. RUN / Exploitation Assurer le support de niveau expert sur les infrastructures réseau Datacenter. Prendre en charge les incidents complexes et les problèmes récurrents. Participer à l'analyse des causes racines (RCA) et à la mise en œuvre des plans d'actions. Accompagner les équipes de production et de support dans la résolution des incidents. Participer à l'amélioration continue de la qualité de service et de la disponibilité des infrastructures. Contribuer à la mise en place et au suivi des indicateurs de production. Participer aux cellules de crise et aux situations de forte criticité. 5. Intégration et projets Participer à l'intégration de nouvelles infrastructures et nouveaux équipements réseau. Réaliser ou valider les configurations techniques. Participer aux phases de tests, recettes et mise en production. Préparer et réaliser les opérations de migration et de bascule. Élaborer les procédures d'exploitation et les plans de retour arrière. Participer aux projets d'évolution et de transformation des Datacenters. Garantir la conformité des nouvelles infrastructures avec les standards d'architecture et de sécurité. 6. Opérations HNO Le poste implique une participation aux opérations en heures non ouvrées (HNO), notamment dans le cadre : Des mises en production sensibles. Des migrations réseau. Des opérations de maintenance. Des changements d'architecture. Des bascules et opérations de sécurisation. Des interventions nécessitant une interruption de service maîtrisée. L'expert sera amené à préparer, piloter et sécuriser ces opérations, en coordination avec les équipes de production, systèmes, sécurité et applicatives.
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CDI

Offre d'emploiICT Senior Network Engineer

Bluetown
Publiée le

£47,046-50,949
CF31 3HL, Bridgend, Wales, United Kingdom
Job Title: ICT Senior Network Engineer Location: South Wales Police Headquarters, Bridgend, Wales Salary: £47,046 - £50,949 per annum Job Type: Full Time, Permanent Working Hours: 37 hours per week Closing Date: 11/11/2026 15:00 Are you looking for your next career step? Do you want to be a part of an Innovative Organisation? About Us: South Wales Police is the largest police force in Wales, serving a population of approximately 1.3 million people across an area of 2,117 square miles. We are dedicated to keeping our communities safe and secure, and we rely on cutting-edge technology to support our operations. As an ICT Senior Network Engineer, you will play a crucial role in ensuring the smooth functioning of our ICT infrastructure and providing technical assistance to our staff. We have recently invested heavily in our ICT department with exciting new projects and opportunities funded by significant investment. We are going through a period of significant growth and technological change; there has never been a better time to join! The role: We are seeking a highly skilled and motivated Senior Network Engineer to join our dynamic IT team. In this role you will support the development, implementation, and maintenance of the network infrastructure. The ICT Senior Engineer - Networks will provide the technical resources necessary to support business continuity for a 24/7 emergency policing service and its external partners. Responsibilities: Implement network security including firewall configurations, intrusion detection/prevention systems, and access control lists To maintain the network architecture including Cisco routers and switches and Cisco ASA / Firepower firewalls & troubleshoot any issues that develop To manage Meraki firewalls / SD-WAN Appliances To assist with the maintenance of Cisco AnyConnect VPN / NAM / ISE To assist with the implementation and maintenance of a CISCO ACI network To manage the performance of major routing protocols such as EIGRP and OSPF. To conduct network capacity planning and support the roll-out of upgrades and improvements across LAN / WLAN / WAN / Wi-Fi / MPLS / SD-Access and Data Centre Requirements: Must possess any of the following: A bachelor's degree in an ICT related subject Cisco Certified - preferably CCNP Demonstratable equivalent skills or experience in networking Must have experience of designing, installing, configuring and managing an on-premises network infrastructure including layer 2 and 3 switching and routing. Must have experience of managing network security hardware and software, including firewalls and network intrusion detection systems. Experience of network hardware and software including Cisco and Meraki solutions. Must demonstrate in-depth understanding of datacentre network architectures, ICT disaster recovery strategies, and LAN / WLAN / WAN / Wi-Fi / MPLS / SD-Access networking technologies. Benefits Include: Training and professional development opportunities Local Government Pension Scheme 24 days Annual Leave increasing to 29 days after 5 years employment Flexible working dependant of duties Free on-site parking On site fitness centre and canteen Collaborative and supportive work environment. Cycle to work scheme Wellness programmes SWP Diolch Vectis & Blue light Discount Card Opportunity to make a meaningful contribution to public safety and community well-being. Diversity, Equality & Inclusion: As a Force, we are committed to developing the overall structure of equality, diversity and inclusion across South Wales Police: in our workforce and in the services we provide. South Wales Police is an equal opportunities employer and is determined to attract, employ and support a workforce which is representative of the diverse society which it serves. Note: Due to the sensitive nature of the work performed by South Wales Police, all applicants will undergo a comprehensive background check as a part of the recruitment process. A full driving license is essential for this role. Level 2 Welsh is not essential, that level could be achieved within the first year of employment. The successful Candidate must be willing to undergo vetting to MVSC Vetting. Please note, if you are subject to an ongoing PSD investigation, you appointment or placement in the role may be delayed pending an outcome. Whether the role is held open will be considered on a case-by-case basis PREVIOUS APPLICANTS NEED NOT APPLY IF APPLIED IN THE LAST 10 MONTHS. Please click on the APPLY button to send your CV and Cover Letter for this role. Candidates with the relevant experience or job titles of: IT Systems Technician, ICT Technician, IT Systems Support, IT Technician, Information Technology, IT, 1st Line, 2nd Line, Technical Support Engineer, Network Engineer, IT Networks Technician, may also be considered for this role.
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Freelance

Mission freelanceDV L3 Network Engineer

LA International Computer Consultants Ltd
Publiée le

6 mois
£550-570
Bristol, Royaume-Uni
Network Engineer Location : Corsham Clearance : DV cleared. Duration : 3 months initial. We are looking for a L3 Network Engineer (CISCO) to provide network engineering support of the LAN and WAN across all security domains. Your role will involve incident management and change implementation on our clients' live system, on incidents that have been escalated from 1/2nd line resources that are often remotely based environments. Skills: * Installation, configuration, deployment, maintenance and diagnostics of all Network Devices and supporting cabling and infrastructure eg Router, switch and firewall IOS and firmware upgrades * Level 3 Support for the LANs and WANs relating to Core Services * Network support, advice and recommendations to design change * Updating Design Documentation to capture Network Changes * ASA and Firepower firewall experience. * Experience of multi-security tier and multi-tenant environments. * Knowledge of VMWare NSX Firewall & SDWAN. * NGNIX * LINUX 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.
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