Senior Exchange Architect & Admin — Cloud/Hybrid Mail Expert

Applied Information Sciences, Inc.; United States; On-site; USD 121,000 - 182,000; Full time

Benefits offered by this job

Employee Ownership

Continuous Learning

Inclusive Culture

Mission-Driven Work

Job summary

Applied Information Sciences, Inc. seeks a Senior Email Architect and Administrator to lead Exchange/Exchange Online design, migration, security, and operations across hybrid and cloud environments.

You will drive architecture decisions, automation, and documentation to support a resilient messaging platform. The role emphasizes senior engineering leadership, threat prevention, and disaster recovery while coordinating with stakeholders and executive leadership to deliver secure, scalable email

Qualifications

• 6-8+ years recent experience as a senior Exchange architect (min: Exchange Server SE, Exchange Online).
• Active Public Trust Clearance (or higher).
• Hands-on lead architect experience migrating hybrid/on-prem Exchange to Exchange Online; designing, implementing, and administering Exchange in hybrid and cloud environments.
• Demonstrated experience as primary technical SME for Exchange/Exchange Online security design, implementation, testing, and documentation.
• 5+ years recent experience as a senior Exchange administrator (min: Exchange 2013, Exchange Online).
• Expert-level administration, configuration, tuning, and troubleshooting of Exchange / Exchange Online.
• Experience securing/hardening Exchange; backup and recovery; disaster recovery and high availability.
• Proficiency with Windows Server administration (2016+) and PowerShell scripting.
• Knowledge of Exchange AD attributes, Active Directory, and networking (IP addressing, subnetting, TCP/IP, VLANs, DNS).
• Nice to Have Skills: Experience working in regulated government environments.

Responsibilities

• Lead Exchange and Exchange Online architecture and administration - Design, implement, configure, maintain, and troubleshoot Microsoft Exchange Server and Exchange Online environments, ensuring reliable, secure, and highly available messaging services.
• Lead the migration from on-premises/hybrid Exchange to Exchange Online - Develop and execute migration strategies, including assessment, planning, coexistence, mailbox migration, cutover activities, validation, and post-migration optimization.
• Serve as the technical SME for email security - Design, implement, test, document, and maintain security controls for Exchange and Exchange Online, including hardening, access controls, mail flow security, and protection against email-based threats.
• Manage Exchange high availability, backup, and disaster recovery - Develop and maintain solutions for Exchange availability, backup, recovery, business continuity, and disaster recovery; participate in recovery testing and ensure messaging services meet organizational resiliency requirements.
• Optimize and troubleshoot messaging infrastructure - Monitor Exchange and Exchange Online performance, identify and resolve complex messaging, mail flow, connectivity, authentication, and configuration issues, and implement tuning and optimization strategies.
• Administer supporting Windows and Active Directory infrastructure - Manage and troubleshoot Windows Server and Active Directory components supporting Exchange, including Exchange-related AD attributes, DNS, TCP/IP, VLANs, subnetting, and other network dependencies.
• Develop PowerShell automation and operational tooling - Create and maintain PowerShell scripts to automate Exchange administration, mailbox management, reporting, configuration, security controls, monitoring, and migration activities.
• Document and standardize email infrastructure operations - Develop and maintain architecture documentation, configuration standards, security procedures, migration plans, operational procedures, and technical documentation to support ongoing administration and the transition to a cloud-based messaging environment.

Skills

Exchange Architecture

Leadership

Email Security

Hybrid/Cloud Migration

PowerShell

Windows Server Admin

Active Directory

Security Hardening

Education

Bachelor's degree in IT or related field

Tools

Exchange Server

Exchange Online

Job description

Applied Information Sciences, Inc. seeks a Senior Email Architect and Administrator to lead Exchange/Exchange Online design, migration, security, and operations across hybrid and cloud environments.

You will drive architecture decisions, automation, and documentation to support a resilient messaging platform. The role emphasizes senior engineering leadership, threat prevention, and disaster recovery while coordinating with stakeholders and executive leadership to deliver secure, scalable email