Active Directory Architect​/Engineer

Description

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success.

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The Digital Modernization Sector brings together our digital transformation and IT programs, allowing us to better serve our customers through scale and repeatability.

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Your Next Great Adventure Awaits!

Leidos is seeking a highly skilled Active Directory Architect / Engineer to review and re-architect ATR’s Microsoft Active Directory and hybrid identity environments. The candidate will be responsible for overseeing the implementation, optimization, and ongoing management of the updated architecture and will play a key role in maintaining integrity, availability, and security of identity and access management systems that support the entire ATR organization.

This position focuses on both the on-premises Active Directory Domain Services (AD DS) and integration with Microsoft Entra  (formerly Azure AD).

Please Note:
This work is located onsite in the DC area.

Key Responsibilities:

• Design, deploy, upgrade, and administer Active Directory Domain Services, including domain controllers, forests, domains, trusts, and replication topologies (i.e. Manage and optimize Group Policy Objects (GPOs), OU structures, and security baselines; including object management through bulk operations and automation, Troubleshoot and resolve complex AD-related issues, including authentication failures, replication problems, DNS issues, and Kerberos/NTLM problems, Plan and execute Active Directory migrations, consolidations, and upgrades (of both underlying server infrastructure and overall forest/domain functional levels), Develop and maintain disaster recovery, backup, and restore procedures for AD environments (including AD Recycle Bin and authoritative restores), Monitor AD health and performance using tools such as Microsoft System Center, Azure Monitor, or third-party solutions).

• Implement and maintain Advanced Microsoft Entra  (Azure AD), Okta, hybrid identity models, Privileged Access Management (PAM), and Public Key Infrastructure services in compliance with federal standards (e.g. NIST and DISA STIG).

• Engineer and implement security best practices including: (i.e. Privileged Access Management (PAM), Just-In-Time (JIT) access, tiered administration, and Least Privilege principles, Zero Trust network access (ZTNA), secure enclave integration, and defense-in-depth methodologies, Compliance with security standards, regulatory requirements (SOC 2, ISO 27001, HIPAA, CMMC, etc.), and internal policies.

• Collaborate with Security, Endpoint, Cloud, and Application teams on identity-related projects and incident response.

• Automate repetitive tasks using Power Shell, Microsoft Graph, Python, and Infrastructure as Code (leveraging Ansible) where applicable.

Required Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, Engineering,
  OR in a related field and 12+ years of relevant experience OR Masters degree with 10+ years of relevant experience . Additional years of experience will be considered/accepted in lieu of a degree.

• 12+ years of hands-on experience as an Active Directory Architect, Engineer,
  OR Senior Administrator in complex enterprise environments.

• Deep expertise in designing, deploying, upgrading, and administering Microsoft Active Directory Domain Services (AD DS), including domain controllers, multi-domain/forest architectures, trusts, replication topologies, Group Policy Objects (GPOs), OU design, and security baselines.

• Strong experience with hybrid identity solutions, including synchronization and integration between on-premises AD DS and Microsoft Entra  (formerly Azure AD).

• Proven track record in troubleshooting and resolving complex AD…