Senior Directory Infrastructure Engineer (Remote)
📍 Job Overview
- Job Title: Senior Directory Infrastructure Engineer (Remote)
- Company: Serigor Inc.
- Location: Washington, DC
- Job Type: Contractor
- Category: IT & Engineering
- Date Posted: June 18, 2025
- Experience Level: 5-10 years
🚀 Role Summary
The Senior Directory Infrastructure Engineer will design, implement, and maintain enterprise directory services infrastructure, managing the complete lifecycle of Active Directory domains. They will also lead domain consolidation and migration projects, develop monitoring procedures, and create disaster recovery plans. The ideal candidate will bring extensive expertise in enterprise identity infrastructure, including Active Directory, Entra ID (formerly Azure AD), OKTA Universal Directory, and LDAP environments, with a proven track record of designing and managing complex directory services.
💻 Primary Responsibilities
- Design, Implement, and Maintain Directory Services Infrastructure: Develop and execute strategies for designing, implementing, and maintaining enterprise directory services infrastructure, including Active Directory, Entra ID, OKTA Universal Directory, and LDAP environments.
- Manage Domain Lifecycle: Plan, deploy, maintain, upgrade, and decommission Active Directory domains, ensuring high availability and performance.
- Lead Domain Consolidation and Migration Projects: Oversee domain consolidation, migration, and forest restructuring projects, ensuring minimal downtime and data integrity.
- Develop Monitoring and Maintenance Procedures: Create and execute proactive maintenance procedures to ensure optimal domain health and performance.
- Create Disaster Recovery Plans: Develop and maintain disaster recovery plans for directory services, ensuring business continuity and minimal data loss in case of outages or disasters.
- Automate Directory Management Tasks: Develop and maintain automation scripts using PowerShell for directory management tasks, improving efficiency and reducing manual effort.
- Integrate with Directory Services: Interface with directory services using GraphAPI and REST API for custom integrations, ensuring seamless user experience and data synchronization.
- Implement Security Best Practices: Design and implement security best practices for directory services, including access control, auditing, and monitoring.
- Manage Trust Relationships: Design and manage trust relationships between domains and forests, ensuring secure and efficient communication between directory services.
- Document Directory Architecture and Procedures: Create and maintain documentation for directory architecture and operational procedures, ensuring knowledge sharing and smooth onboarding of new team members.
- Provide Incident Response: Serve as a point of contact for critical directory service incidents, ensuring quick resolution and minimal impact on business operations.
🎓 Skills & Qualifications
Education:
- Bachelor's degree in Computer Science, IT, or a related field.
Experience:
- 5-10 years of experience in enterprise directory services, including Active Directory, Entra ID, OKTA Universal Directory, and LDAP environments.
- Proven track record of designing and managing complex directory services.
- Experience with domain lifecycle management, including domain creation, upgrades, and decommissioning.
- Strong PowerShell scripting skills with a demonstrated ability to automate directory management tasks.
Required Skills:
- Experience with enterprise directory services (Active Directory, Entra ID, OKTA Universal Directory, LDAP)
- Advanced PowerShell scripting skills
- Proven experience with Microsoft GraphAPI and REST API integration for directory management
- Strong understanding of identity security best practices and compliance requirements
- Experience with directory synchronization technologies (Azure AD Connect, OKTA integration agents, etc.)
- Experience with multi-forest and hybrid identity environments
- Ability to design and implement complex directory architecture solutions
- Bachelor's degree
Preferred Skills:
- Relevant certifications (Microsoft 365 Certified: Identity and Access Administrator, OKTA Professional, etc.)
- Experience with Terraform, Ansible, or similar IaC tools for directory infrastructure
- Knowledge of SAML, OAuth, OIDC, and other modern authentication protocols
- Experience with Group Policy design and management
- Expertise in domain controller sizing, placement, and performance optimization
- Experience with domain functional level upgrades and cross-domain migrations
- Familiarity with CI/CD pipelines for infrastructure automation
- Experience with implementing Zero Trust architecture
💵 Compensation & Benefits
Salary Range:
- The salary range for this role is not provided in the job listing. However, based on industry standards for senior directory infrastructure engineers with 5-10 years of experience in the Washington, DC area, the estimated salary range is $120,000 - $170,000 per year.
Benefits:
-
The job listing does not specify any benefits. However, typical benefits for a contract role in the technology industry may include:
- Health, dental, and vision insurance
- Retirement plan contributions
- Paid time off (vacation, sick leave, and holidays)
- Professional development opportunities
- Employee referral bonuses
- Performance-based bonuses
Working Hours:
- The working hours for this role are not specified in the job listing. However, typical working hours for a contract role in the technology industry are generally 40 hours per week, with flexibility for remote work.
🎯 Team & Company Context
🏢 Company Culture
- Industry: Serigor Inc. operates in the information technology industry, focusing on providing managed IT services and solutions.
- Company Size: As a medium-sized company, Serigor Inc. offers a collaborative and dynamic work environment, with opportunities for professional growth and development.
- Founded: Serigor Inc. was founded in 2005, with a strong focus on delivering innovative technology solutions to clients in various industries.
🌐 Work Environment
- Office Type: The work environment for this role is remote, with no specified office location or on-site requirements.
- Office Location(s): As a remote role, the Senior Directory Infrastructure Engineer can work from their preferred location, with regular virtual team interactions and collaboration tools.
- Workspace Context: The remote work environment for this role will require a dedicated workspace with a reliable internet connection, suitable for video conferencing and virtual team collaboration. The candidate should have access to appropriate hardware and software tools for directory management tasks.
📈 Career & Growth Analysis
🌟 Web Technology Career Level:
- The Senior Directory Infrastructure Engineer role is a senior-level position, requiring extensive experience in enterprise directory services and a proven track record of managing complex directory services. This role offers significant career growth potential, including opportunities to lead large-scale directory infrastructure projects, mentor junior team members, and drive innovation in directory services management.
💼 Reporting Structure:
- The Senior Directory Infrastructure Engineer will report directly to the hiring manager or a senior IT director, depending on the company's organizational structure. They will collaborate closely with various teams, including IT operations, security, and development, to ensure seamless directory services integration and optimal user experience.
📈 Technical Impact:
- The Senior Directory Infrastructure Engineer will have a significant impact on the company's directory services infrastructure, ensuring high availability, performance, and security. They will work closely with cross-functional teams to integrate directory services with other IT systems, drive innovation in directory services management, and ensure optimal user experience.
💡 Challenges & Growth Opportunities
Technical Challenges:
- Directory Service Consolidation: Lead complex directory service consolidation projects, ensuring minimal downtime and data integrity.
- Multi-Forest Environments: Design and manage multi-forest and hybrid identity environments, ensuring secure and efficient communication between directory services.
- Zero Trust Architecture: Implement and maintain Zero Trust architecture, ensuring secure access to directory services while minimizing attack surface and maximizing user experience.
Learning & Development Opportunities:
- Emerging Technologies: Stay up-to-date with emerging directory services technologies, such as cloud-based directory services and identity-as-a-service (IDaaS) solutions.
- Leadership Development: Develop leadership skills through mentoring junior team members, driving innovation in directory services management, and contributing to strategic decision-making processes.
- Architecture and Design: Enhance your understanding of directory services architecture and design principles, enabling you to lead large-scale directory infrastructure projects and drive innovation in directory services management.
💡 Interview Preparation
📝 Technical Questions:
- Directory Services Fundamentals: Demonstrate a deep understanding of Active Directory, Entra ID, OKTA Universal Directory, and LDAP environments, including domain lifecycle management, directory synchronization, and security best practices.
- PowerShell Scripting: Showcase your advanced PowerShell scripting skills, with a focus on automating directory management tasks and improving efficiency.
- Directory Integration: Explain your experience with integrating directory services using GraphAPI and REST API, ensuring seamless user experience and data synchronization.
- Directory Security: Discuss your understanding of identity security best practices and compliance requirements, highlighting your ability to design and implement secure directory services.
- Directory Synchronization: Describe your experience with directory synchronization technologies, such as Azure AD Connect and OKTA integration agents, and their role in ensuring data consistency and user experience.
- Multi-Forest Environments: Explain your experience with multi-forest and hybrid identity environments, emphasizing your ability to design and manage complex directory services infrastructure.
📝 Company & Culture Questions:
- Company Culture: Research Serigor Inc.'s company culture, focusing on their commitment to innovation, collaboration, and customer satisfaction. Prepare questions that demonstrate your understanding of their values and how you can contribute to their success.
- Team Dynamics: Inquire about the team structure and dynamics, highlighting your ability to collaborate effectively with cross-functional teams and drive innovation in directory services management.
- Company Goals: Ask about Serigor Inc.'s strategic goals and how the Senior Directory Infrastructure Engineer role contributes to their achievement, demonstrating your long-term commitment and alignment with their vision.
📝 Portfolio Presentation Strategy:
- Directory Services Portfolio: Prepare a portfolio showcasing your experience with enterprise directory services, including case studies of complex directory services infrastructure projects, domain lifecycle management, and directory synchronization implementations.
- Automation Scripts: Demonstrate your advanced PowerShell scripting skills by providing examples of automation scripts for directory management tasks, highlighting their efficiency and impact on directory services performance.
- Security Best Practices: Highlight your understanding of identity security best practices and compliance requirements by presenting case studies of secure directory services implementations and security audits.
- Directory Services Architecture: Showcase your ability to design and implement complex directory services architecture by presenting diagrams and documentation of large-scale directory infrastructure projects.
📌 Application & Technical Interview Process
📝 Application Process:
- Submit your application through the application link provided in the job listing.
- Prepare a tailored resume and cover letter, highlighting your relevant experience with enterprise directory services, PowerShell scripting, and directory synchronization technologies.
- Customize your portfolio to showcase your experience with directory services case studies, automation scripts, and security best practices.
📝 Technical Challenge Preparation:
- Brush up on your PowerShell scripting skills, focusing on directory management tasks and automation.
- Review your understanding of Active Directory, Entra ID, OKTA Universal Directory, and LDAP environments, emphasizing domain lifecycle management, directory synchronization, and security best practices.
- Prepare for technical questions related to directory services architecture, directory integration, and directory security, using the suggested interview questions as a guide.
- Practice presenting your portfolio, focusing on directory services case studies, automation scripts, and security best practices, using the suggested portfolio presentation strategy as a guide.
📝 ATS Keywords:
To optimize your resume and portfolio for the Senior Directory Infrastructure Engineer role, include relevant ATS keywords related to directory services, PowerShell scripting, and directory synchronization technologies. Some suggested ATS keywords are:
- Active Directory
- Entra ID
- OKTA Universal Directory
- LDAP
- PowerShell
- GraphAPI
- REST API
- Directory Services
- Directory Synchronization
- Directory Security
- Domain Lifecycle Management
- Automation Scripting
- Zero Trust Architecture
- Group Policy
- Terraform
- Azure AD Connect
- OKTA Integration Agents
By strategically placing these ATS keywords throughout your resume and portfolio, you can improve your visibility to potential hiring managers and increase your chances of being selected for an interview.
📅 Company Description
Serigor Inc. is a leading provider of managed IT services and solutions, with a strong focus on delivering innovative technology solutions to clients in various industries. With a commitment to customer satisfaction and a track record of successful IT projects, Serigor Inc. is dedicated to helping businesses optimize their IT infrastructure and drive growth through technology.
Application Requirements
Candidates must have extensive experience with enterprise directory services and a proven track record in managing complex directory services. Relevant certifications and advanced scripting skills are preferred, along with knowledge of modern authentication protocols.