HENRIETTA EFUA LARBI

New Rochelle, NY • 518-***-**** • ad1w3m@r.postjobfree.com

Summary

Experienced and results-oriented Cloud Infrastructure Engineer with 6+ years of extensive and progressive experience in designing, implementing, and managing IT infrastructure in Healthcare and public sector industries. Proficient in Red Hat, VMware, and AWS technologies, with a strong focus on optimizing performance and automating routine tasks. Effective communicator and leader with a history of working directly with C-Suite Executives and developing high-performing teams.

Core Expertise:

Virtualization Management – Incident Management – Change Management – Fleet Management/Inventory -Patch Management – Automation – User/Service/Account Management – Network/Firewall Management -Cluster Management/Containerization– System Administration/Monitoring – Cloud Migration

Professional Experience:

DELOITTE CONSULTING LLP August 2020 –

Solution Specialist

Deployed and administered VMware virtualization environments in 350 servers, including vCenter, ESXi hosts, virtual machines, and virtualizing datacenter networking using VMware NSX; provided support for production environments 24x7 at multiple sites on IBM Cloud.

Implemented site-to-site VPN connections on FortiGate firewall to securely access and manage the infrastructure and applications for 250+ clients in the Health Care sector; whitelisted and blacklisted IPs using FortiGate.

Managed and created networking/security rules for inbound/outbound connections and externalized IPs over SSL/VPNs for both internal teams and external clients.

Coordinated and led meetings with multiple application teams in preparation for patching activities. Documented repeatable processes and procedures and maintained on SharePoint site.

Implemented Operating System patch and kernel upgrades for 450 RHEL and Windows servers using Ansible Automation tool (AWX) and automated snapshots creation and removal, leading to 65% reduction in patching and installations time.

Troubleshot users, service account and file permission issues, server access, and networking issues to ensure continued service availability with minimal disruption.

Maintained responsibility for Onboarded Users/Service Account Management with Active Directory, configuring SFTP files, and automating jobs/files for COVID clients with MOVEit application.

Procured and managed SSL/TLS certificates for various applications and servers using DigiCert, which reduced access issues to applications and servers and ensured timely updates of latest applications.

Oversaw monitoring and observability management to ensure optimal performance of systems using Dynatrace, Observium, and Splunk and Nagios.

Developed holistic solutions by analyzing client needs and employing critical thinking in the development of specifications for client implementation and use.

Employed Jira and ServiceNow tickets to track progress of team’s work, leading to an improvement of resolved issues and 75% elimination of unattended tickets.

Monitoring and Troubleshooting: Performed regular sanity checks and set up escalated monitoring alerts utilizing PagerDuty tool to notify the Application teams of any key system issues. Evaluated resource utilization and identified root causes and resolutions through consistent system monitoring; leading to 75% efficiency in resources and optimal performance of systems.

JBM CONSULTING August 2019 – June 2020

Linux System Administrator

Implemented measures for improved server hardening by ensuring regular patching, kernel upgrades, and software installations via RPM and YUM package management, which led to 60% elimination of threats and security vulnerabilities.

Enforced password policy and MFAs at the component level, which increased network security and assurance and minimized unauthorized access to systems and environments.

Eliminated extended downtime by installing and configuring Nagios server to monitor system hosts.

Network Management: Configured and troubleshot network services, TCP/IP, DNS, DHCP, and routing.

Troubleshot basic network problems using cloud utilities like nmap, netstat, packet capture which led to improved network efficiency and client satisfaction. Collaborated with network and cybersecurity teams to optimize network performance.

Coordinated and performed preventive system maintenance, resource monitoring, and performance tuning to create a holistic solution to system update and service interruption issues.

Created and managed user accounts and set up permissions using ACLs and Change Attributes, leading to stronger data security and integrity.

Monitoring/Alerting: Set up and managed monitoring tools and responded to alerts promptly. Troubleshot system issues and performed root cause analysis.

MAGNOLIA CENTRE March 2018 – April 2020

Linux System Administrator

Automated system administrative tasks with cron scheduler, reducing hours of work and increasing effectiveness.

Configured and provisioned RHEL/CentOS Virtual Machines using VMware for product/software testing for Development and Production teams.

Configured NTP clients on servers to synchronize time zone with the NTP servers and led setup of secured passwordless ssh authentication on servers using ssh keys for replication of installations and processes.

Partnered with Network, System Administrators, Cybersecurity Officers/Analysts, and stakeholders to strategize and improve systems/productivity by constantly monitoring resources and systems control to be able to quickly mitigate vulnerabilities.

Analyzed logs and tracked and resolved software/hardware matters of significance pertaining to networking connectivity issues, servers, and applications to meet business needs.

Configured and managed services with Firewalld and Selinux.

THE SOCIAL INVESTMENT FUND April 2006 – June 2019

Project/System Administrator

Created and managed 200+ user accounts and set up permissions on files and directories, leading to an elimination of access of unauthorized users and an increase in system and network integrity.

Troubleshot disk failures, software, and network connectivity and configured NFS servers and clients for file distribution and printer sharing.

Automated and managed system configuration, installation, and integration of system patches and updates; implemented a solid backup and recovery procedure to significantly reduce data loss.

Conducted regular system backups using local archiving, including tar, gzip, and bzip utilities.

Screened, shortlisted, and recruited qualified staff for the Project with the goal of improving team performance and ensuring standardization of best practices across newly onboarded team members.

Designed tracking and monitoring system for the usage and maintenance of Project fleet and inventory and regular servicing, which prevented inventory shortages and minimized frequent breakdowns of Project fleet.

Prepared staff contracts and conducted yearly assessments, which improved employee development, training, and compensation and rewards.

Education:

Kwame Nkrumah University of Science & Technology

Masters Business Administration

University of Cape Coast- School of Business & Commerce

Bachelor of Science - Management Studies

Accra Polytechnic

HND – Secretaryship and Management Studies

NIIT Centre of Information & Technology

Certifications:

AWS Solution Architect Associate - 2022

AWS Cloud Certified Practitioner. - 2022

Technical Tools & Skills/Competencies:

Microsoft Windows Server 2012, 2016, & 2019, MariaDB

Red Hat Enterprise Linux Server 7 & 8

MS Office Suite: Outlook, Excel, Word, & PowerPoint, SharePoint

Virtualization Management: VMWare, VCenter

Cloud Computing Platforms: AWS, Red Hat, Azure

Cluster Management/Containerization: Red Hat OpenShift

Monitoring and Alerting Tools: Observium, Splunk, Nagios, Dynatrace

Network/Firewall/VPN Management: Fortinet, FortiGate, NSX Edge

User/Service/Account Management: Microsoft Active Directory

Patch Management/Automation/Configuration: Ansible Automation Tool

Incident/Project Management: Jira, ServiceNow

Networking & Security Protocols: TCP/IP, DNS, DHCP, VPN, Firewall, SSL/TLS,

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