Senior Software Engineer Windows, Cloud, Automation
Resume:
John V Sullivan
Fleetwood PA 19522
**************@*****.***
John Sullivan LinkedIn
Objective Dynamic Software Engineer with 15 years of experience in Windows system administration and cloud solutions. Proficient in C# and automation using Ansible, with a solid understanding of Windows internals and security software development. Experienced implementing hybrid identity architectures, secure authentication frameworks, and identitylifecycle automation using Microsoft Entra ID, Microsoft Active Directory, and PowerShell.
06/2025 – 03/2026 Lead Infrastructure System Analyst (contractor), BrightView Blue Bell, PA
Lead, train, and provide technical direction to junior analysts; act as the main escalation point for critical incidents.
Lead the design and implementation of robust infrastructure (cloud, on-prem, hybrid) and ensure it meets business needs.
Conduct deep-dive Root Cause Analysis (RCA) for major issues, troubleshoot complex problems, and develop strategic solutions.
Drive automation (e.g., scripting, Ansible) and enhance processes for efficiency, security, and compliance.
Manage relationships with third-party suppliers and collaborate with cross-functional teams
Acts as a bridge between technical execution and business strategy, ensure IT Infrastructure directly supports company objectives.
Managed user accounts, licenses, and security settings in Microsoft 365 Admin Center
Configured and maintained Azure virtual machines and cloud resources
Implemented access control using Azure Active Directory/Entra
Assisted on patching and application installs using Intune
Supported collaboration tools including Teams and SharePoint
08/2016 – 04/2025 Senior Windows System Administrator, QVC West Chester, PA
Remediated all preproduction servers and meticulously documented the process. Automated various tasks within the environment using Ansible, enhancing operational efficiency.
Created and executed Ansible playbooks in a Windows environment, streamlining deployments.
Onboarded new Windows server operating systems, including versions 2022 and 2025.
Facilitated the data center move from St. Petersburg to Philadelphia, ensuring seamless transition.
Coordinated the data center move from West Chester to Philadelphia, optimizing resource allocation.
Contributed to capital projects, server builds, and application software installations, ensuring adherence to timelines
Assisted Desktop team with configuration of Intune to allow install of patches and applications on desktop/laptop
Engineer and maintain hybrid identity infrastructure integrating on-premises Active Directory with Microsoft Entra ID
Administer and monitor Active Directory domain controllers, directory replication, and authentication Services
Design and maintain Group Policy Objects (GPOs) to enforce enterprise security baselines and configuration standards.
Supported CommVault backup and recovery environment, safeguarding critical data.
Configured SQL Servers for both Active/Passive and Active/Active modes, enhancing availability.
Assisted in Ivanti patching of Windows servers, improving security compliance.
Implement secure authentication solutions including Single Sign-On, Conditional Access policies, and
Multi-Factor Authentication.
Executed PowerShell and VB Scripts in the environment, automating routine tasks
11/2013 – 07/2016 Senior Cloud Solutions Engineer, Ricoh Americas Exton PA
Effectively managed SharePoint 2010 environment, utilizing Windows 2003, Windows 2008, and Windows 2012 servers for optimal performance.
Supervised and motivated staff, ensuring smooth business operations and workflow.
Oversaw and coordinated day-to-day operations, enhancing team productivity.
Managed backup (Doc Ave), maintenance, and monitoring of systems within the Data Center, ensuring data integrity.
Coordinated and implemented special projects, providing guidance as needed to optimize outcomes.
Migrated the Data Center from physical servers to a cloud environment (MS Azure, IBM SoftLayer, and AWS), advancing infrastructure.
Implemented, configured, and managed CommVault within the Microsoft Azure environment, bolstering data management.
Administered Microsoft Azure Automation with PowerShell, streamlining system management. Evaluated new tools for System Engineers, Developers, and Tech Support in Business Intelligence and Analytics, enhancing capabilities.
12/2008 – 11/2013 Senior Windows Administrator, Sungard Financial System Collegeville PA
Effectively managed the Data Center, overseeing Windows 2003, Windows 2008, and Windows 2012 servers for optimal function.
Supervised and motivated staff, ensuring seamless business operations.
Directed backup and recovery (CommVault), and monitored systems within the Data Center to ensure data availability.
Participated in disaster recovery (DR) testing with clients, meticulously documenting procedures for compliance and improvements.
Coordinated and implemented special projects, offering guidance to team members to achieve project goals.
Migrated the Data Center from physical servers to a virtual server environment, realizing cost savings.
Implemented VMware 4.x and 5.x into a comprehensive test environment consisting of 300 servers and 200 workstations. Monitored, updated, and inventoried all devices on the network using SCCM, improving resource management.
SKILLS:
Windows Servers 2003-2025
Security Remediation
Azure
Problem-solving abilities
SQL Server load balancing
Ansible automation
VMware 7.5 & 8.0
Active Directory engineering and administration
Hybrid identity architecture and operations
Domain controller deployment, maintenance, and replication monitoring
Microsoft Entra ID identity management
Microsoft Entra Connect / Azure AD Connect synchronization
Group Policy design, implementation, and troubleshooting
Authentication protocols: Kerberos, NTLM, SAML, OIDC
Single Sign-On (SSO) and federation using ADFS
Identity lifecycle management and access governance
Authentication troubleshooting and root cause analysis
Conditional Access and multi-factor authentication implementation
PowerShell automation for identity administration and reporting
Cisco UCS Manager
High-energy approach Windows Security
Software Public-key
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