OT Cloud Administrator

OT Cloud Administrator

Seeking a skilled and proactive OT Cloud Administrator with strong Microsoft Azure and cybersecurity experience to support and maintain the critical infrastructure within our Operational Technology (OT) environment. The ideal candidate will be well-versed in Azure security posture improvement, Windows Server administration, and Virtualization.

Offshore and data center experience is highly desirable.

In this role, you will ensure the secure and reliable operation of OT systems by managing configurations, resolving vulnerabilities, supporting compliance efforts, and advancing OT Azure environment.

Responsibilities:

Azure & Cloud Services

• Serve as a subject matter expert (SME) in the design, implementation, and support of the dedicated OT Azure environment, including identity architecture, virtual networks, security controls, and resource segmentation.
• Build Azure Policy and Automation to maintain consistent configuration in the OT tenants.
• Contribute to the continuous improvement of the organization's Azure security posture, including hardening identity infrastructure, minimizing attack surface, and implementing security recommendations from Microsoft Secure Score and Defender for Cloud.
• Support integration of OT workloads into MxDR, Azure Monitor, Log Analytics, and Microsoft Defender solutions for visibility and threat detection.
• Liaise with the Cloud Center of Excellence team to develop and deploy cloud governance, standards, and patterns.
• Administer and support Microsoft Azure, including Azure AD, ADConnect, Conditional Access policies, and Just-In-Time (JIT) access configurations for privileged accounts.
• Maintain and update FinOps practices to promote responsible cloud spending.

Systems Administration

• Manage Active Directory, including user/group management, GPO management, and ADConnect.
• Configure and support Windows & Virtualization Server infrastructure ensuring availability, integrity, and security.
• Administer certificate services for secure machine and service communication.
• Provide support for data center operations, including physical server deployment, racking and stacking, cabling, hardware replacement, and environmental monitoring.
• Provide OT support for offshore, data center, and field locations as needed.

Monitoring & Virtualization

• Manage and optimize VMware environments and virtual machines supporting OT systems.
• Monitor infrastructure using tools such as SCOM, StruxureWare, OpenManage, SolarWinds, and Azure Monitor.

Backup & Recovery

• Support existing backup solutions (e.g., Rubrik, Avamar) to ensure recoverability and resilience against system outages or ransomware.
• Assist with backup job monitoring, basic troubleshooting, and recovery coordination.
• Use SCCM for patch management, software deployment, and endpoint configuration
• Maintain accurate OT asset inventory, including virtual and physical infrastructure

Cybersecurity & Compliance

• Implement technical security controls aligned with IEC 62443, NIST CSF, or Zero Trust.

Architecture

• Drive vulnerability remediation, system hardening, and privileged access management across OT systems.
• Participate in security incident response and threat containment efforts.
• Maintain alignment with enterprise SIEM platforms (e.g., Azure Sentinel or other SOCsupported solutions).

Licenses/ Certifications

• Microsoft Certified: Azure Administrator Associate (AZ-104) or higher
• ISC2 SSCP, CompTIA Security+, or equivalent
• VMware Certified Professional (VCP)

Qualifications/ Requirements

• Bachelor's degree in Information Technology, Computer Science, Cybersecurity, or related field.
• Minimum 5 years of experience in system administration, preferably in an OT or industrial control system (ICS) environment.
• Demonstrated experience with:
• Microsoft Azure administration, particularly security-focused configuration and posture improvement.
• Azure AD, Conditional Access, JIT access, and ADConnect.
• Windows Server, Virtualization, Active Directory, GPOs, and certificate services.
• Knowledge of process control design, implementation, and troubleshooting.
• Broad knowledge of automation and electrical devices and equipment.
• Knowledge of personal computers and windows operating systems.
• Knowledge of working with virtual machines.
• Advanced knowledge of communications networks and radios.
• Ability to produce network diagrams, process flow diagrams, using Microsoft Visio.
• Ability to effectively cooperate with personnel of different backgrounds and skill level.
• Ability to train and transfer knowledge to others.
• Strong ability to create and maintain relevant documentation.
• Ability to manage OT/IT network segregation including firewall support.

Desired/ Preferred Qualifications

• SCCM, monitoring tools (SCOM, StruxureWare, SolarWinds, etc.).
• Experience in offshore or industrial OT environments.
• Strong understanding of OT/ICS cybersecurity principles.
• Experience with cybersecurity implementation in OT/ICS environments.
• Familiarity with Zero Trust design, segmentation, and identity-based access models.
• Knowledge of security tools like Claroty, Palo Alto, or Microsoft Defender for IoT.
• Excellent written and verbal communication skills; ability to document technical designs and procedures.

Dexian is a leading provider of staffing, IT, and workforce solutions with over 12,000 employees and 70 locations worldwide. As one of the largest IT staffing companies and the 2nd largest minority-owned staffing company in the U.S., Dexian was formed in 2023 through the merger of DISYS and Signature Consultants. Combining the best elements of its core companies, Dexian's platform connects talent, technology, and organizations to produce game-changing results that help everyone achieve their ambitions and goals.

Dexian's brands include Dexian DISYS, Dexian Signature Consultants, Dexian Government Solutions, Dexian Talent Development and Dexian IT Solutions. Visit https://dexian.com/ to learn more.

Dexian is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race, religion, sex, sexual orientation, gender identity, age, national origin, ancestry, citizenship, disability, or veteran status.