Active Directory Systems Administrator - Montreal - Aptonet

    Aptonet
    Aptonet Montreal

    23 hours ago

    Full time
    Description

    Active Directory Systems Administrator (Senior)


    Role Overview

    As a Senior Active Directory Systems Administrator, you will join the Level 3 (L3) Active Directory support team, working alongside technical experts responsible for the stability, security, and evolution of the global Active Directory environment. Operating within an agile delivery model, you will provide deep technical support for production systems while also leading and contributing to global infrastructure projects.

    You will collaborate closely with distributed teams across Paris, Bangalore, and Asia, supporting enterprise-scale initiatives and ensuring consistent, reliable directory services across regions.

    Key Responsibilities

    • Provide Level 3 (L3) support for a global Active Directory infrastructure, including troubleshooting complex issues and supporting production environments.

    Lead and execute infrastructure projects, including:

    • Reinstallation and upgrade of domain controllers to newer Windows Server operating systems.
    • Administration and optimization of ADFS to support identity federation, including integrations with Power BI.
    • Ensure the stability, security, and performance of Active Directory services in a global enterprise environment.
    • Collaborate with global teams on cross-regional initiatives, architecture decisions, and operational improvements.
    • Contribute to continuous improvement through automation, documentation, and process optimization.

    Required Qualifications

    • Bachelor's degree in Computer Science, Engineering, or equivalent professional experience.
    • Strong ability to analyze and resolve complex Active Directory issues in enterprise environments.
    • Hands-on experience with Windows scripting and automation using PowerShell.
    • Excellent attention to detail with strong analytical and problem-solving skills.
    • Proven ability to build and maintain effective working relationships with stakeholders, including senior leadership.
    • Strong verbal and written communication skills.

    Language Requirement

    • Fluent English (written and spoken) is required, as this role involves regular collaboration with colleagues and partners in the United States and globally.

    Preferred Qualifications

    • Strong sense of ownership, autonomy, and accountability.
    • Collaborative team player who is well organized and focused on quality and results.
    • Experience working in Agile environments or within agile delivery teams.

    #J-18808-Ljbffr
  • Work in company

    Senior Systems Administrator

    Only for registered members

    Nous recherchons un(e) Administrateur(trice) systèmes senior pour opérer et faire évoluer une infrastructure de production basée majoritairement sur des technologies open source. · Concevoir et maintenir des infrastructures hautement disponibles · Exploiter et optimiser Ceph et Z ...

    Montreal $105,000 - $120,000 (CAD)

    2 weeks ago

  • Work in company

    Senior Systems Administrator

    Only for registered members

    Nous recherchons un(e) · Administrateur(trice) systèmes senior · pour opérer et faire évoluer une infrastructure de production basée majoritairement sur des · technologies open source, · . Le rôle est très concret et axé sur la · fiabilité ,la performance ,et la robustesse, · , ...

    Montreal, Quebec

    1 month ago

  • Work in company

    NetSuite Systems Administrator

    Only for registered members

    Titre : Administrateur(trice) des systèmes NetSuite – Chaîne d'approvisionnement & Opérations · Statut : Permanent, temps plein · Salaire : $ – $ selon l'expérience, prime de 5 %, avantages sociaux, programme REER, congés les vendredis après-midi (après la période de probation) e ...

    Montreal

    5 hours ago

  • Work in company

    Senior Systems Administrator

    Only for registered members

    We're looking for a Senior Systems Administrator to help operate and evolve a production infrastructure built primarily on open-source technologies. · Systèmes bas niveau et le matériel · Fonctions réseau, stockage, performance · ...

    Montreal $105,000 - $120,000 (CAD)

    1 month ago

  • Work in company

    Senior Systems Administrator

    Only for registered members

    Nosotros estamos buscando un administrateur sistemas senior para operar y hacer evolucionar nuestra infraestructura basada en tecnologías open source. · Concevoir et maintenir des infrastructures hautement disponibles · ...

    Montreal $105,000 - $120,000 (CAD)

    1 month ago

  • Work in company

    System Administrator – Infrastructure

    Only for registered members

    English version will follow · À propos du rôle · Nous sommes à la recherche d'un(e) Administrateur(trice) Systèmes expérimenté(e) pour assurer le maintien, l'optimisation et l'évolution de notre infrastructure TI, tant sur site (on-premise) que dans le cloud (Microsoft Azure). · ...

    Montreal

    7 hours ago

  • Work in company

    Systems Administrator

    Only for registered members

    À PROPOS DE TERRAPURE · Terrapure Environnement est l'un des principaux fournisseurs de solutions de recyclage qui contribuent à l'économie circulaire liée aux batteries et créent de la valeur pour ses clients de partout en Amérique du Nord. · Chez Terrapure, nous changeons le de ...

    Sainte-Catherine, QC

    3 days ago

  • Work in company

    System Administrator

    Only for registered members

    We are seeking a System Administrator with experience in IT Support / Service Desk (Helpdesk) and IT infrastructure operations. · Providing technical support · Maining systems and ensuring smooth day-to-day IT operations · ...

    Montreal, Quebec

    3 weeks ago

  • Work in company

    System Administrator

    Only for registered members

    We are looking for a System Administrator / WebLogic SRE - L3 in Montreal, QC. · Supporting number of devices and application flows in an Enterprise environment which is providing cloud experiences to End users. · Using sophisticated Network tooling to address network connectivit ...

    Montréal, QC

    5 days ago

  • Work in company

    System Administrator

    Only for registered members

    Montréal, Quebec H1A 0A1 Posted February 21st, 2026 · Looking for more job opportunities? Click here · Job Type: Full Time · Job Category: IT · Job Description · System Administrator / WebLogic SRE - L3 · Montreal, QC - Hybrid · "Skills required: · 7-12 years of experience requir ...

    Montréal, QC $55,000 - $90,000 (CAD) per year

    3 days ago

  • Work in company

    System Administrator

    Only for registered members

    We are a tech pioneer offering world-class adult entertainment and games on some of the internet's safest and most popular platforms. With the support of an international team of dynamic and collaborative innovators, we are on a mission to enable safe user experiences and empower ...

    Greater Montreal, Quebec

    3 weeks ago

  • Work in company

    Systems Administrator

    Only for registered members

    LGI Healthcare Solutions develops technological software for the healthcare network. The System Administrator (Windows and Unix) ensures the availability, performance, and reliability of Windows and Unix/Linux systems by applying best practices in administration, automation, and ...

    Montreal, Quebec

    6 days ago

  • Work in company

    System Administrator

    Only for registered members

    We are looking for a System Administrator / WebLogic SRE - L3 to support number of devices and application flows in an Enterprise environment providing cloud experiences to End users. · We require 7-12 years of experience in Apache/Tomcat , Weblogic, FTP , PGP Encryption, Proxy S ...

    Montréal, QC $55,000 - $90,000 (CAD) per year

    4 days ago

  • Work in company

    Systems Administrator

    Only for registered members

    We are seeking an energetic and detail-oriented individual to join our small team of IT professionals as a Systems Administrator working out of our office in Regina SK. · ...

    Greater Montreal Metropolitan Area

    1 month ago

  • Work in company

    System Administrator

    Only for registered members

    We are currently hiring for an High Performance Computing System Administrator to work on-site support to our customers. As part of the Lenovo Professional Services team your responsibilities will include monitoring and maintaining physical infrastructure of a data center ensurin ...

    Montreal, Quebec

    3 weeks ago

  • Work in company

    System Administrator

    Only for registered members

    Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences... We believe diverse perspectives help both players and teams thrive. · Identify, investigate, and resolve technical issues... · ...

    Montreal, Quebec

    1 month ago

  • Work in company

    Systems Administrator

    Only for registered members

    We are seeking a System Administrator to join our Infrastructure and Cloud Ops team. The successful candidate will be responsible for managing, securing, and evolving workstation and mobile environments in a modern cloud-oriented and Zero Trust context. · ...

    Montreal, Quebec

    6 days ago

  • Work in company

    System Administrator

    Only for registered members

    We seek a motivated and skilled Systems Administrator to join our global IT team. · You will support our IT infrastructure by helping to improve performance, · scalability, · efficiency, · and security.Achieving significant business · & revenue growth over the past three years · ...

    Montreal, Quebec

    1 month ago

  • Work in company

    System Administrator

    Only for registered members

    We are on a mission to enable safe user experiences and empower our communities by celebrating diversity, inclusion, and expression — all while maintaining robust trust-and-safety protocols. · A select number of positions require full-time in office attendance*As a system adminis ...

    Montreal

    4 weeks ago

  • Work in company

    System Administrator

    Only for registered members

    +We are looking for a System Administrator to manage our technology fleet and computer systems. · +Provide high-level technical support to all users; · Ensure proper functioning and updates of in-station software as well as editing and finishing rooms; · ...

    Montréal, QC

    5 days ago

  • Work in company

    System Administrator

    Only for registered members

    We are looking for a System Administrator who will provide second-level support to all Ubisoft employees and partners. · This role is ideal for someone passionate about customer service, learning about new technologies and cross-team coordination. · ...

    Montreal

    1 month ago

Jobs
>
Montréal