columbus active directory Jobs – 58 Openings This Week

Active Directory L3 Support Engineer - NTLM, PowerShell, AD, LDAP signing, Zero Trust, CyberArk
APPTOZA INC. —Toronto, ON
- $55–$60 an hour
- Hybrid work
- Windows
Quick apply
5d
Intermediate Technical Analyst
IVARI —Toronto, ON
- $71,000–$89,000 a year
- Weekends as needed
- Management
- Computer Science
- SQL
- Dental care
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6d
Senior IAM Manager, Application Integration & QA
Scotiabank —Toronto, ON
- Azure
- Communication skills
- Tuition reimbursement
Senior Manager, Enterprise and Cyber Security
ENERCARE —Markham, ON
- Full-time
- Azure
- Computer Science
- Presentation skills
Quick apply
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IWI Consulting Group —Woodstock, ON
- Computer science
- ERP systems
- Computer networking
Sage CRM Consultant
IWI Consulting Group —Woodstock, ON
- Computer science
- Computer networking

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Principal Software Engineer, Azure Solutions
TTEC Digital —Toronto, ON
Demonstrate a consistent capability for effective project leadership on a variety of projects and project types, including multi-workstream large-scale complex…
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Data Scientist II (Customer Relationship & Deepening)
TD Bank —Toronto, ON
This role sits within a high-impact pod focused on driving customer growth through deep-dive analysis of customer behavior, engagement, and lifecycle trends to…
$81,600–$115,200 a year
5d

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Active Directory L3 Support Engineer - NTLM, PowerShell, AD, LDAP signing, Zero Trust, CyberArk
APPTOZA INC. —Toronto, ON
Document remediation plans, implementation standards, and operational procedures to support audit readiness and ongoing compliance.
$55–$60 an hour
Quick apply
5d
IT Intern - MYMI 2026
Mercedes-Benz Group AG —Mississauga, ON
Support basic administration of user accounts, permissions, and security groups. Stars who love to research and analyze information.
$21.49 an hour
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Active Directory L3 Support Engineer - NTLM, PowerShell, AD, LDAP signing, Zero Trust, CyberArk

APPTOZA INC.
Toronto, ON

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Job details

Fixed term contract
5 days ago

Skills

Microsoft Windows Server
Authentication
Encryption
Disaster recovery
Windows
SSL
Remote access software
LDAP
DNS
CyberArk
PowerShell
Active Directory

Full job description

Active Directory L3 Support Engineer - NTLM, PowerShell, AD, LDAP signing, Zero Trust, CyberArk

Toronto, ON - Hybrid (4 Days WFO)

6-12 Months Contract

Key Responsibilities

Deploy and configure additional domain controllers across primary and disaster recovery sites, including DC01 and DC02, to improve availability, resilience, and site-level recovery readiness.
Replace legacy Windows Server 2016 domain controllers and support platform modernization activities with minimal service disruption.
Implement production and development network segmentation to reduce lateral movement risk and align identity services with Zero Trust principles.
Maintain Active Directory health across replication, authentication, DNS integration, and Group Policy processing.

Security Hardening and Access Control

Enable Extended Protection for Authentication (EPA) and require SSL/TLS for privileged HTTP-based services such as AD CS and ADWS to reduce credential relay and man-in-the-middle exposure.
Enforce SMB signing to help prevent tampering and NTLM relay over SMB sessions.
Disable NTLMv1 and strengthen LDAP protections by enforcing LDAP signing and channel binding / LDAPS for directory communications.
Implement Kerberos armoring, restrict unconstrained delegation, tighten delegation permissions on privileged accounts, and address unknown delegation entries.
Remediate excessive privilege findings, including Admin Count issues, GPO-deployed file exposure, missing protective ACLs, and privileged accounts not enrolled in Protected Users.
Remove insecure legacy access patterns such as pre-Windows 2000 compatible group usage and administrator logon allowances through Group Policy.
Enforce stronger password and privileged account controls, including a 12-character minimum complexity baseline, password expiration where appropriate, and smartcard password rotation requirements.
Identify and remediate risky account configurations such as PASSWD_NOTREQD, password never expires, admin accounts with email usage, and missing delegation restrictions.

Group Policy, Logging, and Compliance

Harden Group Policy baselines by enforcing event audit logging, PowerShell logging, supported encryption types, remote desktop best-practice settings, and secure administrator sign-in controls.
Review and remediate LDAP signing and channel binding gaps, privileged HTTP service protection gaps, and other domain-level weak configurations identified through assessments.
Document remediation plans, implementation standards, and operational procedures to support audit readiness and ongoing compliance.
Partner with infrastructure, cybersecurity, and application teams to validate compatibility, sequence change windows, and reduce operational risk during security enforcement activities.

Required Technical Skills

Hands-on experience administering Active Directory Domain Services in multi-domain or multi-site enterprise environments.
Strong knowledge of domain controllers, replication, DNS, Group Policy, authentication flows, and disaster recovery design for AD.
Practical experience implementing Microsoft security controls such as EPA, LDAP signing, channel binding, Kerberos hardening, SMB signing, and privileged account protections.
Experience with Active Directory Certificate Services, Active Directory Web Services, Windows Server hardening, and identity-related remediation programs.
Ability to analyze and remediate privilege escalation paths, insecure account settings, and policy-based configuration weaknesses.
Proficiency with PowerShell for audit, remediation, automation, and operational reporting.
Experience planning and executing infrastructure upgrades, domain controller replacement, and controlled production changes.

Preferred Qualifications

Experience supporting regulated or highly controlled enterprise environments with strong audit, change management, and documentation expectations.
Familiarity with Zero Trust architecture, privileged access management, and identity security assessments.
Relevant Microsoft certifications in Windows Server, Active Directory, security, or identity administration are advantageous

Pay: $55.00-$60.00 per hour

Work Location: Hybrid remote in Toronto, ON (Toronto District)

Quick apply

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Active Directory L3 Support Engineer - NTLM, PowerShell, AD, LDAP signing, Zero Trust, CyberArk

Intermediate Technical Analyst

Senior IAM Manager, Application Integration & QA

Senior Manager, Enterprise and Cyber Security

Sage ERP Consultant

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