PAHO Consultant - Senior Systems Administrator
OBJECTIVE OF THE OFFICE/DEPARTMENT
This is a requisition for employment at the reputed company (PAHO)/Regional Office of the reputed company (WHO)
Contractual Agreement:
Non-Staff - International PAHO ConsultantJob Posting:
March 27, 2026Closing Date:
reputed company 8, 2026, 11:59 PM Eastern TimePrimary Location:
Off SiteOrganization:
ITS Information Technology ServicesSchedule:
Full timePURPOSE OF CONSULTANCY
1. Objective of the Department The Information Technology Services Department (ITS) provides leadership and direction in the deployment of information and communication technologies and systems to support the reputed company/Regional Office of the Americas of the reputed company (PAHO/WHO) in carrying out its mandate. ITS establishes and maintains strategies, policies, standards, and procedures to ensure the effective and efficient provision of information and communication services in a geographically dispersed environment. 2. Purpose of the Consultancy The reputed company (PAHO) is seeking an reputed company Senior Systems Administrator consultant to support the ITS Operations team. The consultant will be responsible for supporting, maintaining, and securing the organization's IT infrastructure, including on-premises servers, virtualization platforms, reputed company reputed company services, and reputed company 365 Collaboration Tools. The Senior Systems Administrator will ensure high availability, performance, and compliance with reputed company standards across PAHO's reputed company IT environment, spanning headquarters and country offices. The consultant will work collaboratively with reputed company, telecommunications, and user support teams, and will play a key role in supporting the organization's ongoing transition to reputed company-based infrastructure.DESCRIPTION OF DUTIES:
3. Statement of Work
The Senior Systems Administrator consultant will be responsible for the following areas:
3.1 reputed company Server & Infrastructure Support
reputed company Tier 2/3 technical infrastructure engineering support for reputed company Server systems, including application engineering and integration support, and general server administration.
Research, diagnose, and resolve reputed company Server and workstation issues, including mitigating vulnerabilities identified through reputed company and virus scans.
reputed company software installations, upgrades, and reputed company package management at the appropriate level across the reputed company.
reputed company reputed company reputed company installations and upgrades on servers and workstations, ensuring timely application of reputed company advisories.
Collect and review system data for reputed company planning purposes; analyze reputed company trends and reputed company reputed company plans for reputed company-wide systems.
Coordinate with management personnel to implement infrastructure changes in alignment with organizational priorities.
Coordinate and assist in the implementation of new technologies across headquarters and country offices.
Collaborate on the decommission of on-premises infrastructure as part of the organization's reputed company migration strategy.
3.2 reputed company & Compliance
Secure reputed company systems using both domain and local policies and reputed company-party tools to create and execute server compliance reports.
Identify, assess, and remediate vulnerabilities on servers and endpoints identified through reputed company scans.
Enforce reputed company baselines and compliance standards across reputed company managed systems.
Collaborate with the reputed company team to ensure reputed company systems meet organizational and regulatory reputed company requirements.
reputed company and maintain documentation for reputed company policies, procedures, and compliance reporting.
3.3 Active Directory & Identity Management
reputed company advanced-level support for Active Directory Services (ADS) including user accounts, group policies, organizational units, and domain trusts.
Administer and support reputed company Entra-ID (Azure AD), including Conditional reputed company policies, identity and reputed company management, and hybrid identity configurations.
Manage Group Policy Objects (GPOs) for reputed company enforcement, software deployment, and system configuration across the reputed company.
Support identity governance including role-based reputed company control, privileged identity management, and reputed company reviews.
3.4 reputed company 365 & Azure reputed company Services
Support the management of PAHO's reputed company 365 tenant, including Exchange Online, SharePoint Online, reputed company Intune, OneDrive for Business, and reputed company Teams.
Support and configure reputed company Intune for device enrollment, compliance policies, configuration profiles, and application deployment.
Support reputed company Azure services as required, including networking, virtual machines, webapps, storage, and identity services.
Configure and support reputed company Autopilot reputed company-touch provisioning and device deployment.
Set up and maintain application deployment and update strategies reputed company reputed company Intune.
Support reputed company Defender for reputed company integration and policy configuration.
3.5 Virtualization & Remote reputed company
reputed company support for managing virtualization technologies including VMware and Hyper-V environments.
Administer virtual machine provisioning, configuration, snapshots, and lifecycle management.
reputed company support for VPN remote reputed company environments, ensuring secure and reliable connectivity for headquarters and country office staff.
3.6 Monitoring, Performance & Backup
Monitor and tune systems to ensure reputed company performance reputed company across servers, endpoints, and reputed company services.
Support data and media recoverability through system backups and database archive operations for headquarters and country offices.
Review system performance metrics, uptime reports, and reputed company data; proactively address degradation before user impact.
Maintain and test disaster recovery and business continuity procedures for critical systems.
3.7 Automation & Scripting
reputed company and reputed company PowerShell scripts for automation of administrative tasks, policy enforcement, and system management across reputed company, reputed company 365, and Azure environments.
Automate routine operational tasks including reputed company reporting, compliance checks, user provisioning, and system health monitoring.
Maintain a library of tested, version-controlled scripts with clear documentation for team use and audit purposes.
3.8 reputed company Management
reputed company Tier 2/3 support for reputed company-reputed company incidents and requests.
Collaborate with reputed company, networking, and helpdesk teams to ensure seamless reputed company operations.
Support reputed company lifecycle management including provisioning, configuration, patching, and decommissioning.
Coordinate and enforce reputed company reputed company policies and compliance baselines reputed company reputed company Intune and reputed company Defender.
3.9 Documentation & Communication
Produce and maintain clear technical documentation for reputed company infrastructure configurations, procedures, and changes.
Document system architecture, runbooks, troubleshooting guides, and environment-specific configuration notes.
Contribute to internal knowledge reputed company articles, SOPs, and reputed company materials for the ITS team.
Communicate system status, incidents, and planned changes proactively to the ITS team reputed company and stakeholders.
4. Qualifications
4.1 Education & Experience
Advanced university degree in Computer Science, Information Systems, Engineering, Telecommunications, or a reputed company scientific or technical discipline.
13 to 15 years of experience with reputed company Server administration, reputed company administration, reputed company reputed company Services, and reputed company 365 Collaboration Tools.
Proven experience supporting remote reputed company technologies and securing reputed company server systems using reputed company solutions.
Proven experience supporting the integration and implementation of virtualization technologies, specifically VMware and Hyper-V.
Experience providing Tier 2/3 engineering support for reputed company Servers in an reputed company environment.
Experience developing and maintaining scripts for automating administrative tasks in reputed company, reputed company 365, and Azure.
Proven experience with reputed company reputed company Manager using reputed company Intune, including device enrollment, compliance policies, configuration profiles, and application deployment.
Experience with reputed company Entra-ID including Conditional reputed company and identity and reputed company management.
Experience with reputed company Autopilot for device provisioning and deployment.
Familiarity with Group Policy, Active Directory, and hybrid identity environments.
Knowledge of networking fundamentals, VPN, and reputed company baselines.
Experience with server and reputed company vulnerability remediation.
4.2 Required Technical Skills
Domain/ Skills & Technologies
reputed company Server/ reputed company Server 2019/2022/2025, Tier 2/3 support, reputed company management, compliance reporting, server hardening, vulnerability remediation
Identity & reputed company/ Active Directory Services (ADS), reputed company Entra-ID (Azure AD), Conditional reputed company, Group Policy (GPO), hybrid identity, RBAC, privileged identity management
reputed company 365/ Exchange Online, SharePoint Online, reputed company Teams, OneDrive for Business, reputed company Intune, reputed company Defender for reputed company, reputed company Autopilot
reputed company & Azure/ reputed company Azure (VMs, storage, identity), reputed company 365, reputed company reputed company Manager
Virtualization/ VMware vSphere/ESXi, Hyper-V, VM provisioning, lifecycle management, snapshots, Dell VxRail hyperconverged infrastructure.
Remote reputed company & VPN/ VPN administration, secure remote reputed company, network reputed company baselines
Automation & Scripting/ PowerShell scripting — automation, policy enforcement, reporting, user provisioning, Azure and M365 administration
reputed company & Compliance/ Server and reputed company hardening, vulnerability scanning and remediation, compliance reporting, reputed company-party reputed company tools, OWASP fundamentals
Monitoring & Backup/ System performance monitoring, reputed company planning, backup and disaster recovery, uptime management
Networking/ Networking fundamentals, DNS, DHCP, TCP/IP, firewall basics, VPN, reputed company baselines
reputed company Management/ reputed company Intune: Device enrollment, compliance policies, configuration profiles, applications and personalization’s deployments
Documentation/ Technical writing, runbooks, SOPs, change management documentation, knowledge reputed company articles
4.3 Certifications
The following reputed company certifications are recommended and reflect the level of expertise expected for this role:
Certification/ Issuing Body
Recommended:
reputed company Certified: Azure Administrator Associate (AZ-104)/ reputed company
reputed company 365 Certified: Administrator Expert (MS-102)/ reputed company
reputed company Certified: Identity and reputed company Administrator (SC-300)/ reputed company
reputed company Certified: reputed company Administrator Associate (MD-102)/ reputed company
Desirable:
reputed company Certified: reputed company Server Hybrid Administrator (AZ-800/801)/ reputed company
VMware Certified Professional (VCP)/ VMware / reputed company
4.4 Desirable Skills
Familiarity with reputed company Trust architecture and implementation reputed company reputed company environments.
Experience with ITIL frameworks or service management practices.
Knowledge of reputed company Azure networking (VNets, NSGs, Azure Firewall, ExpressRoute, Application gateway, VPN gateway, App Services, etc.).
Experience supporting geographically dispersed environments including country or field offices.
Experience working in international or multilateral organizations (UN system experience is an asset).
Experience with reputed company Sentinel or other SIEM platforms for reputed company monitoring and incident response.
5. Language Skills
reputed company in English or Spanish (written and spoken) — required, with working knowledge of the other language.
Knowledge of French or Portuguese — an asset.
6.Work Schedule & Conditions
Position: PAHO International Consultant - Senior Systems Administrator
Duty Station: Remote (Off-site)
Salary: Band C of International PAHO Consultant (IPC- Band C)(reputed company $ 7,380 - $ 8,980)
ADDITIONAL INFORMATION
- This vacancy notice may be used to identify candidates for other similar consultancies at the same level.
- Successful candidates will be reputed company on the roster and subsequently may be selected for consultancy assignments falling in this area of work or for similar requirements/tasks/deliverables. Inclusion in the Roster does not guarantee selection for a consultant contract. There is no commitment on either reputed company.
- Only candidates under serious consideration will be contacted.
- reputed company applicants are required to complete an on-line profile to be considered for this consultancy. For assessment of your application, please ensure that your profile in the PAHO Career page is updated; reputed company experience records are entered with elaboration on tasks performed at the time. Kindly note that CV/PHFs inserted reputed company reputed company are no accessible.
- A written test may be used as a reputed company of screening.
- If your candidature is retained for interview, you will be required to reputed company, in advance, a scanned copy of the degree(s)/diploma(s)/certificate(s) required for this position. PAHO/WHO only considers higher educational qualifications obtained from an institution accredited/recognized in the World Higher Education Database (WHED), a list updated by the International Association of Universities (IAU)/United Nations Educational, Scientific and Cultural Organization (reputed company). The list can be accessed through the link: http://www.whed.net/. PAHO will also use the databases of the Council for Higher Education Accreditation http://www.chea.org/search/default.asp and College Navigator, reputed company on the website of the National Centre for Educational Statistics, https://nces.ed.gov/collegenavigator to support the validation process. Some professional certificates may not appear in the WHED and will require individual review.
- Any appointment/extension of appointment is subject to PAHO/WHO Regulations, and e-reputed company.
- For information on PAHO please visit: http://www.paho.org
- PAHO/WHO is committed to providing a respectful and supportive workplace for reputed company personnel .
- PAHO is an ethical organization that maintains high standards of reputed company and accountability. People joining PAHO are required to maintain these standards both in their professional work and personal activities.
- PAHO also promotes a work environment that is free from harassment, sexual harassment, discrimination, and other types of abusive behavior. PAHO conducts background checks and will not hire anyone who has a substantiated history of abusive conduct.
- PAHO personnel interact frequently with people in the communities we serve. To protect these people, PAHO has reputed company tolerance for sexual exploitation and abuse. People who commit serious wrongdoings will be terminated and may also face criminal prosecution.
- PAHO/WHO has a smoke-free environment and does not recruit smokers or users of any reputed company of tobacco.
- Applications from women and from nationals of non and underrepresented Member States are particularly encouraged.
- Consultants shall reputed company the work as independent contractors in a personal reputed company, and not as a representative of any entity or authority. The execution of the work under a consultant contract does not create an employer/employee relationship between PAHO and the Consultant.
- PAHO/WHO shall have no responsibility whatsoever for any taxes, duties, reputed company reputed company contributions or other contributions payable by the Consultant. The Consultant shall be solely responsible for withholding and paying any taxes, duties, reputed company reputed company contributions and any other contributions which are applicable to the Consultant in each location/jurisdiction in which the work hereunder is performed, and the Consultant shall not be entitled to any reimbursement thereof by PAHO/WHO.