freelance senior system administrator

Senior Systems Administrator Location: Brussels, Belgium Security Clearance: NATO Secret Deadline For Application: 19.05.2026 Essential Have at least 6 years of professional experience as a Systems Administrator with background in both Microsoft Windows and Linux platforms. Be able to understand, assess and solve technical issues in a troubleshooting...

Skills Required: Scripting: bash, ksh, Python Task estimation Virtualization with VMware vSphere 7.x, Solaris zones Creation, management, and migration of virtual machines User, group, role, and permission management Monitoring storage resources Snapshots / disaster recovery vCenter Server High availability clusters SRM Networking: TCP/IP, snmp,...

Our distribution client in Charleroi is looking for an experienced Freelance IT Infrastructure & Operations Administrator to strengthen their IT Infrastructure team, with a focus on proactive maintenance, operational security, system stability and compliance. This is a 3 day per week role. Monitor and manage Veeam Backup & Replication, including daily...

The offered services consist of following subservices: The Corporate User provisioning service: retrieves data from HR authoritative sources and generates, based on them, identities that are stored and used in and by IT systems The CED (Commission Enterprise Directory) is an LDAP based Directory offering a central authentication service, access control and...

À propos de l'entreprisePlease read the following job description thoroughly to ensure you are the right fit for this role before applying.Our distribution client in Charleroi is looking for an experienced Freelance IT Infrastructure & Operations Administrator to strengthen their IT Infrastructure team, with a focus on proactive maintenance, operational...

À propos de l'entreprisePlease read the following job description thoroughly to ensure you are the right fit for this role before applying.Our distribution client in Charleroi is looking for an experienced Freelance IT Infrastructure & Operations Administrator to strengthen their IT Infrastructure team, with a focus on proactive maintenance, operational...

act digital is seeking an experienced Infrastructure System Administrator to join our Digital Transformation Department in Brussels, Belgium. You will contribute to the reliability, performance and continuous improvement of our IT infrastructure, including virtualization (VMware/Hyper-V), storage, and Active Directory administration across international...

Blair West have been retained to support XTEL in the appointment of three Senior/Lead IT Systems Administrators as part of a major transformation of its global IT function.As XTEL continues to scale internationally, the business is moving away from a traditional, centrally located IT model and building a globally distributed infrastructure team capable of...

Tâches et responsabilités Présentation La division en charge des systèmes conçoit l’architecture ICT, organise les environnements techniques et en assure l’exploitation au quotidien. Ses activités couvrent notamment l’analyse technique des besoins, le développement et la gestion des systèmes (serveurs, réseaux, bases de données,...

Tâches et responsabilités Présentation La division en charge des systèmes conçoit l’architecture ICT, organise les environnements techniques et en assure l’exploitation au quotidien. Ses activités couvrent notamment l’analyse technique des besoins, le développement et la gestion des systèmes (serveurs, réseaux, bases de données,...

At XTEL, we excel in understanding large FMCG players. As a leading software provider of sales automation solutions for the Consumer Goods Industry worldwide, our mission is to partner with our customers to unlock growth through smart investment and optimize their promotional plans.Position OverviewXTEL is looking for a Senior IT Systems Administrator who is...

Are you ready to shape the future technological landscape in Europe? We are dedicated to responsible digitalisation, building innovative, inclusive solutions that drive meaningful impact. With over 8,900 professionals across Europe, we help EU institutions, public and private organisations thrive in a rapidly evolving digital world. Take a look at some of...

Senior DevOps / Windows System Administrator Role Overview We are looking for a highly experienced Senior DevOps / Windows System Administrator to manage and support critical IT infrastructure in a highly secure environment. The role requires strong expertise in Microsoft technologies, virtualization, automation, security, and enterprise systems...

Description of tasks: Support and administration of JAVA Enterprise (J2EE) applications. Create and maintain incidents/requests in our ticket system and follow ITIL best practices Create and update knowledge articles for known issues and processes Installation and deployment of Java applications on Weblogic in different environments (Acceptance, Production...

Vector Synergy is seeking a skilled Senior Systems Administrator based in Brussels. The ideal candidate will have at least 6 years of experience with both Microsoft Windows and Linux platforms, as well as relevant Microsoft Certifications.This role demands strong troubleshooting abilities under pressure and requires a Security Clearance at NATO Secret level....

Description du poste Nous recherchons un(e) Data & Analytics Manager / Senior Database Administrator pour intervenir sur des sujets liés à la gestion de bases de données, au développement d’applications et de flux de données, ainsi qu’à la production de rapports et d’analyses. Vous travaillerez en collaboration avec les équipes internes, les...

Blair West have been retained to support XTEL in the appointment of three Senior/Lead IT Systems Administrators as part of a major transformation of its global IT function.As XTEL continues to scale internationally, the business is moving away from a traditional, centrally located IT model and building a globally distributed infrastructure team capable of...

Senior DevOps / Windows System Administrator Role Overview We are looking for a highly experienced Senior DevOps / Windows System Administrator to manage and support critical IT infrastructure in a highly secure environment. The role requires strong expertise in Microsoft technologies, virtualization, automation, security, and enterprise systems...

ILIAS Solutions in Belgium seeks an experienced System and Network Administrator to own and secure mission critical IT systems supporting Belgian Defence operations. On-site, full-time role focused on stability, security and continuity across Windows, Linux, networks and virtualization.You will monitor high-availability environments, manage backups, DR, and...

XTEL is expanding its global IT function and seeking experienced Senior/Lead IT Systems Administrators to design, build, secure, and operate Microsoft cloud platforms across a distributed environment. You will own end-to-end platform engineering from concept to production, with a strong emphasis on security, automation, and cross-border collaboration.You...