Find your next tech and IT Job or contract DNS

What you need to know about DNS

DNS (Domain Name System) is an essential system of Internet infrastructure that translates human-readable domain names (like www.example.com) into computer-understandable IP addresses (like 192.0.2.1). This conversion allows users to easily access websites and online services without having to memorize complex IP addresses. DNS functions as a decentralized global directory, organized in a hierarchy of servers. When a user enters a domain name in a browser, a DNS query is sent to look up the associated IP address. DNS servers resolve these queries by interrogating different levels, from root servers to authoritative name servers. DNS is also used for other network services, such as emails, through MX records, or to secure connections via DNSSEC records. It is a crucial component for Internet browsing, ensuring resource accessibility while maintaining high performance and reliable domain name management.

52 results
Permanent
Fixed term

Job VacancyAdministrateur système et réseau / Team Leader (H/F)

Ness Technologies
Published on
Active Directory
microsoft
Networks

6 months
40k-50k €
Ile-de-France, France
Contrat : CDD avec perspective de pré-embauche ContexteDans le cadre du renforcement d'une équipe IT, nous recherchons un(e) Administrateur(trice) Réseaux & Systèmes confirmé(e) capable d'assurer le maintien en conditions opérationnelles des infrastructures et d'intervenir comme référent technique auprès de l'équipe. Le poste s'adresse à une personne polyvalente, autonome et proactive, disposant de solides compétences en environnements systèmes Microsoft, virtualisation et réseaux. Une très bonne maîtrise de l'anglais, voire un niveau bilingue, est indispensable. Vos missionsVous interviendrez notamment sur les activités suivantes : Administrer, maintenir et sécuriser les infrastructures systèmes et réseaux ; Gérer les environnements Windows Server : Active Directory, DNS, DHCP et GPO ; Administrer les plateformes de virtualisation VxRail, VMware vSphere et Hyper-V ; Assurer l'exploitation des services Microsoft 365 : Exchange Online, Teams, SharePoint, OneDrive et Entra ID ; Administrer les infrastructures réseau : LAN, WAN, VLAN, VPN, Wi-Fi et pare-feu ; Participer aux projets d'évolution, de migration, de modernisation et de sécurisation des infrastructures ; Assurer le support de niveaux 2 et 3 et intervenir sur les incidents complexes ; Participer aux activités de sauvegarde et de continuité de service ; Administrer les alertes de supervision PRTG et assurer le suivi des sauvegardes ; Maintenir et enrichir la documentation technique ; Contribuer à l'amélioration continue des infrastructures et des processus d'exploitation. Référent technique & suivi opérationnelEn complément de vos missions d'administration, vous jouerez un rôle de référent technique au sein de l'équipe : Apporter votre expertise lors de la résolution d'incidents complexes ; Accompagner techniquement les membres de l'équipe ; Assurer le suivi et la priorisation des tickets ; Veiller au respect des délais de traitement et à la qualité des réponses apportées ; Suivre quotidiennement les outils de supervision ; Contrôler la disponibilité et le bon fonctionnement des infrastructures ; Identifier de manière proactive les alertes, anomalies et risques ; Coordonner les actions correctives nécessaires ; Partager les bonnes pratiques d'exploitation. Environnement techniqueWindows Server Active Directory DNS / DHCP / GPO VxRail VMware vSphere Hyper-V Microsoft 365 Exchange Online Teams SharePoint OneDrive Entra ID LAN / WAN VLAN / VPN Wi-Fi Pare-feu PowerShell Commvault PRTG
View this job
Permanent

Job VacancyDevOps Senior Operations Engineer

Nexus Jobs Limited
Published on

£60k-80k
Bristol, England, United Kingdom
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.
View this job
Contractor

Contractor jobArchitecte solutions Montpellier Conteunerisation , micro-services, kubernetes, Virtualisation ...

WorldWide People
Published on
Architecture

6 months
400-500 €
Montpellier, Occitania
Architecte solutions Montpellier - Conteunerisation , micro-services, kubernetes, Virtualisation (EsX/VM) et réseaux (flux, transferts, DNS, firewall,proxy…) Définir et animer l'architecture technique des solutions, produire les livrables d'architecture techniques, compléter et superviser l'évolution de ces Architectures Technique au cours de leur mise en œuvre Accompagnement des équipiers(architecte applicatif, squad) et du Cluster (chef de projet, ingénieur de production, intégrateur, etc) dans l'implémentation et la vie de la solution technique définie, dans une logique Devops et agile Dont contribution aux phases de tests et benchs Dont le traitement des obsolescences techniques Suivi des mises en œuvre/construction de produits techniques, en liaison avec les socles technologiques fournisseurs (animation et/ou suivi) Compétences techniques : Architecture technique de solutions hybrides (native, monde open, mainframe) Dont Conteunerisation , micro-services, kubernetes Dont Virtualisation (EsX/VM) et réseaux (flux, transferts, DNS, firewall,proxy…) Base de données relationnelles et NoSQL (MongoDB, Elastic, etc..), gestion de cache APIsation , WSO2, Connaissances en développement sur des nouvelles technologies Environnement de travail Windows
View this job

Contract roles and jobs for DNS

System administrator

The Systems Administrator manages and configures DNS servers to ensure correct domain name resolution and service availability.

Systems & Networks Engineer

The Systems & Network Engineer administers and optimizes DNS services in a complex network environment, managing DNS zones, security, and redundancy.

Systems and Networks Manager

The Systems and Network Manager supervises the management of the company’s DNS infrastructure, implementing security and performance strategies for domain name services.

Network Technician

The Network Technician installs and maintains DNS configurations in company networks, ensuring connectivity and rapid domain name resolution.

Connecting Tech-Talent

Free-Work, THE platform for all IT professionals.

Free-workers
Resources
About
Recruiters area
2026 © Free-Work / AGSI SAS
Follow us