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IT System Administrator: Critical Infrastructure – L3

LifeinCloud
1 poziție
Anunț verificat

Anunț verificat

Textul acestui anunț a fost verificat de echipa eJobs pentru a elimina posibile greșeli sau conținut discriminatoriu.

Candidatul Ideal

We are looking for a skilled Infrastructure Administrator to ensure the uptime, security, and performance of our clients’ primarily Windows and Linux-based infrastructure and distributed services across on-premises and cloud environments. You will oversee critical enterprise services, including Active Directory, Group Policy, Microsoft 365, and backup systems, while supporting daily operations, resolving incidents, and managing projects in a hybrid IT environment that, from a technological perspective, supports the business activities of multiple companies.

Required Skills and Experience:
  • 4+ years of experience in Windows infrastructure administration or related roles
  • Strong Active Directory expertise — domain controller management, replication, OU design, DNS, DHCP, and GPO
  • Hands-on experience with Windows Server 2016+ administration and troubleshooting
  • Experience with Microsoft 365 administration (Exchange Online, SharePoint, Teams) and Microsoft Entra ID (Azure AD) — including sync, enterprise app registration, SCIM, and LDAP/Kerberos integrations
  • Proficiency in PowerShell for automation and AD management
  • Experience with VMware virtualization and enterprise backup solutions (VEEAM)
  • Solid understanding of IIS administration and Windows Firewall management
  • Experience with security patching processes and tools (Intune, WSUS)
  • Familiarity with ITIL-based incident management and service desk workflows
  • Strong troubleshooting skills and structured, methodical thinking
  • Good documentation habits and the ability to follow change management processes
  • Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience)
  • Nice to have:
  • Familiarity with multi-domain Active Directory architectures across business units
  • Exposure to hybrid identity scenarios (on-prem AD + Entra ID coexistence)
  • Experience preparing technical specifications for procurement
  • Understanding of IT security baselines and compliance frameworks
  • Human profile:
  • Customer focus: empathy for frustrated users is a skill, not an option.
  • Quick analytical thinking: diagnose before acting, not afterward.
  • Systemic thinking: understand infrastructure interdependencies— a firewall change can impact backup.
  • Proactivity: identify trends (recurring incidents) before they escalate.
  • Clear communication: explain technical concepts in user-friendly language.
  • Stress resilience: SLAs are contractual, not just reminders.
  • Ability to organize and handle multiple tickets with varying priorities simultaneously.
  • Descrierea jobului

    Main activities:
  • Active Directory & Domain Services: Manage and maintain Active Directory across multiple domains by following best practices for OU design, replication, trust relationships, and domain controller health. Oversee DNS, DHCP, and Group Policy infrastructure from start to finish.
  • Security & Network: FortiGate management: configuring firewall rules, IPS/IDS, SSL inspection, IPsec/SSL VPN, MPLS administration, and multi-site WAN connectivity. Proactive monitoring with CheckMK: setting up checks, alerts, and custom dashboards for each client. Periodic vulnerability assessment and remediation: scanning, prioritizing, and applying fixes.
  • Group Policy Design & Maintenance: Develop, deploy, and manage GPO policies throughout the clients’ IT systems. Maintain consistent security standards, desktop setups, and compliance enforcement through clear policy hierarchies.
  • Microsoft 365 & Entra ID Operations: Manage Office 365 services such as Exchange Online, SharePoint Online, and collaboration tools. Perform operational tasks including MFA resets, license management, and user lifecycle management. Administer Microsoft Entra ID (Azure AD) integrations - including AD sync, enterprise application registration, SCIM provisioning, LDAP integrations, and Kerberos authentication.
  • Windows Server Administration: Manage Windows Server environments (2016 and later) across production workloads. Conduct OS-level troubleshooting, configure Windows Firewall, administer IIS, and analyze system performance.
  • Security Patching & Compliance: Manage the entire Windows security patching process, from assessing patches and scheduling to deployment (using Intune / WSUS), verification, and reporting. Collaborate with stakeholders to coordinate patching cycles and maintain patching schedules documentation.
  • Virtualization & Backup Infrastructure: Manage VMware virtualization environments running Windows workloads. Oversee VEEAM backup and restore procedures to ensure data security and rapid recovery for essential services.
  • Monitoring, Incident Management & Service Desk: Oversee infrastructure health and address incidents, outages, and service disruptions. Resolve infrastructure incidents (INC), generate incident reports, and keep the incident log updated. Work with colleagues across L1 and L2 departments to resolve tickets (requests and incidents) on the ticketing platform.
  • Automation & Scripting: Leverage PowerShell for automation of Active Directory management, user provisioning, reporting, configuration tasks, and operational workflows. Build reliable, repeatable scripts to reduce manual effort and improve consistency. Project Participation & Change Management: Engage in the design, analysis, evaluation, and implementation of infrastructure projects. Prepare scheduled maintenance windows, inform stakeholders, monitor progress, and update maintenance logs. Develop test plans with specific test cases and expected results, and prepare acceptance reports (PV) for major changes.
  • Documentation, Knowledge Transfer & Asset Management: Document existing solutions and maintain up-to-date documentation for all managed services. Ensure knowledge transfer - both written and oral - to technical team members and stakeholders. Manage assets including user accounts, licenses, email accounts, SharePoint sites, file servers, and shared folders.
  • Business Alignment & Continuous Improvement: Collect business requirements and propose solutions aligned with budget constraints. Integrate technical requirements into Terms of Reference and verify technical offers. Propose improvements to departmental activities, processes, and IMS (Integrated Management System) operations.
  • Terms of collaboration & Rewards:
  • Contract Type: Full-Time, Permanent Position
  • Location: Remote from HQ with potential for on-site visits to clients in Bucharest and Ilfov
  • Schedule: Monday-Friday, 9:00 AM–6:00 PM; Friday – work from home
  • Net Salary: 1.600 EUR – 2.000 EUR (based on certifications and experience)
  • Benefits: Regina Maria medical subscription; Meal Vouchers; Gift Vouchers
  • Descrierea companiei

    In 2009, we embarked on a mission to use our passion for technology to help business succeed in the digital era. Over the past decade, we have grown from a managed service provider into a leading cloud computing provider, but our core values remain unchanged: integrity, humbleness, human and business oriented.

    We are extremely proud of our team of highly skilled and customer oriented engineers, who collaborate seamlessly to deliver the best customer experience possible.

    We embrace transparency, communicating with our customers throughout the process, and infuse humanity into each interaction.

    At LifeinCloud we recognize that IT challenges can be a significant obstacle for people and businesses. We strive to make IT accessible, simple and easy to use for all businesses.

    That's why we offer a full range of cloud IT-managed services and solutions, tailored to meet the specific needs of each of our clients. Our core business principles are prevention and business continuity, delivered to our customers in the form of a personalized business continuity plan customized for every client.

    Since 2009, we have been committed to delivering the highest level of service, and providing our clients with the peace of mind that their IT infrastructure is in safe hands.

    With a proven track record of delivering effective IT management and solutions to small and medium businesses, we have helped our clients streamline their IT operations, increase productivity and online safety while allowing them to focus on driving growth.

    Publicat 30 Mar. 2026Reactualizat 30 Mar. 2026Expiră 29 Apr. 2026
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