Andrew Lam
Barnegat,NJ
Summary
Performance-driven Senior Systems Administrator experienced in engineering, automating, and supporting high-availability enterprise environments. Delivered effective management of large-scale Windows, Solaris and Linux server infrastructures and B2B EDI platforms, ensuring compliance in mission-critical production data centers. Demonstrated resourcefulness in addressing technical challenges through problem-solving and decision-making capabilities.
Overview
14
14
years of professional experience
Work History
Senior Systems Administrator
OpenText
Tinton Falls, NJ
07.2016 - Current
- Platform Ownership & SME: Serve as the Subject Matter Expert (SME) for five enterprise B2B communication platforms (ICC.net, IBP.net, EWS, CSP, and GMS) supporting Fortune 500 clients, consistently delivering 99.98% uptime while adhering to strict production SLAs.
- Infrastructure Scale: Manage, optimize, and troubleshoot 300+ multi-tenant Windows, Linux, and Solaris production servers processing millions of critical transactions across EDI, Fax-to-Mail, and OCR enterprise solutions.
- Virtualization & Automation: Architected standardized VMware templates and leveraged Ansible playbooks to automate server provisioning, reducing environment delivery times by 90% across production, QA, and Development environments.
- Compliance & Security: Enforce continuous PCI-DSS compliance across hybrid infrastructure through automated patching, system hardening, and vulnerability remediation across all OS environments.
- Lifecycle & Operations: Lead enterprise-wide software deployments, operating system upgrades, and infrastructure optimization routines to maintain maximum service availability.
- Cross-Functional Collaboration: Partner directly with QA, Engineering, and Development teams to validate, test, and execute software releases across distributed production platforms.
- Business Continuity & DR: Direct disaster recovery (DR) readiness by managing datacenter failover operations, authoring runbooks, and leading annual production flip-over testing to guarantee high availability.
LAN Administrator II
FirstService Residential
Eatontown, NJ
01.2013 - 04.2016
- Enterprise Support: Delivered comprehensive infrastructure, network, and end-user support for 500+ employees across multiple corporate and regional office locations.
- Directory & Network Admin: Administered Active Directory, file servers, WSUS infrastructure, secure VPN connectivity, and localized network routing systems.
- Project Engineering: Designed and deployed end-to-end infrastructure for new satellite offices, including the installation of network cabling, switching infrastructure, and workstation provisioning.
- VDI Infrastructure: Implemented thin-client environments utilizing Cisco virtual desktop technologies to centralize management and improve security posture.
- Environment Management: Managed Citrix XenApp, XenDesktop, VMware, and virtual desktop infrastructure (VDI) environments to support remote and hybrid workforces.
- Lifecycle Operations: Coordinated employee onboarding tech workflows and hardware/workstation deployments, managing mobile device management (MDM) and proprietary business applications.
Education
Bachelor of Science - Computer Science
Monmouth University
Long Branch, NJ07-2015
Skills
- Windows Server Lifecycle Management: Expert in deploying, configuring, and maintaining enterprise Windows Server environments (2012–2025) across physical, virtual, and cloud platforms
- Red Hat Enterprise Linux (RHEL Legacy/7/8/9): Expert in deployment, administration, performance tuning, and lifecycle management across enterprise physical, virtual, and cloud platforms, mainly utilizing CLI
- Oracle Solaris Administration: Proficient in installation, configuration, performance tuning, and lifecycle management across Solaris 10 and Solaris 11 environments
- Virtualization & Cloud Provisioning: Hands-on experience administering guest Windows and Linux OS instances across VMware vSphere, Virtual Cloud Director, Cisco VDI and Azure environments with extensive training in AWS
- High Availability & Failover Clustering: Hands-on experience configuring Windows and Linux Server Failover maintenance, and Disaster Recovery (DR) orchestration
- Maintenance Linux/Solaris/Windows & Service Availability: Scheduled and coordinated monthly patching rotations during off-peak maintenance windows, ensuring critical services met strict 999% availability SLAs through staged rollouts and failover readiness
Accomplishments
- Achieved service 99.9% uptime by virturalizing antiquated physical systems into VMware and creating system redundancies and auto-recovery scripts
- Documented and resolved many traffic interrupting outages which led to robust run-books and documentation for platforms that no formal standard operating procedures.
- Engineered enterprise Disaster Recovery (DR) infrastructure and automated failover orchestration, successfully executing annual DR flip-over simulations to guarantee zero data loss and strictly adhere to Recovery Time (RTO) and Recovery Point Objectives (RPO).
- Maintained PCI-DSS compliance across enterprise server infrastructure by executing routine security hardening, vulnerability remediation, and automated patch management to guarantee audit readiness.
Timeline
Senior Systems Administrator
OpenText
07.2016 - Current
LAN Administrator II
FirstService Residential
01.2013 - 04.2016
Bachelor of Science - Computer Science
Monmouth University