Patrick Himwiita

Cloud Infrastructure Engineer - eScholar, a Harris Computer company - Remote

(2025-12)

Administer secure, highly available AWS and Azure production infrastructure, including Windows servers, networking, identity controls, encryption, and multi-tier application environments.
Monitor infrastructure health and security signals through CloudWatch, Site24x7, SIEM, CrowdStrike, Rapid7, and Qualys; investigate alerts, troubleshoot issues, and coordinate resolution with technical teams and vendors.
Automate Windows patching and monitoring across development, staging, and production with AWS Systems Manager, PowerShell, and scripts, improving patch compliance by 95% and reducing manual intervention by 30%.
Execute rolling updates, routine server maintenance, backup strategies, vulnerability remediation, SSL certificate work, and access administration across commercial and GovCloud environments.
Support SOC implementation, vendor reviews, and technical documentation while maintaining HIPAA and SOC 2-aligned security and operational controls.
Designed a highly available three-tier Windows architecture using EC2, Application Load Balancer, Auto Scaling, and RDS SQL Server to improve uptime and performance.

AWS Hosting Administrator - eScholar, a Harris Computer company - Remote

(2023-02 - 2025-12)

Maintained production AWS hosting environments for uptime, scalability, and security; performed system checks, updates, patching, and routine operational support.
Monitored system performance in CloudWatch, responded to incidents, and troubleshot server, network, and application issues in collaboration with development, security, and DevOps teams.
Automated deployments, backups, and recurring operational tasks to improve consistency, reliability, and recovery readiness.
Documented system configurations, procedures, and operational workflows; supported compliant change execution across development, staging, and production.
Managed IAM and Okta access controls, Tenable vulnerability reviews, and security best practices for reliable, audit-ready operations.
Led cloud cost optimization through rightsizing, reserved instances, and removal of unused resources, delivering more than $420K in cumulative savings across client environments.

AWS DevOps Administrator - Dominion Systems - Canada

(2018-01 - 2023-01)

Provisioned and administered AWS compute, storage, load balancing, and Auto Scaling resources using Terraform and the AWS console for scalable production environments.
Built Jenkins, Maven, and Git CI/CD pipelines to deploy WAR/JAR applications to Tomcat across development, staging, and production.
Enforced least-privilege IAM controls across multi-account environments and introduced monitoring scripts that detected performance anomalies and reduced downtime by 15%.

System Administrator - Access Organization LLC - San Antonio, TX

(2017-01 - 2017-12)

Supported Windows and Linux servers and AWS infrastructure, maintaining availability, secure access, and day-to-day production operations.
Administered user accounts, tokens, directories, and permissions to support compliance and audit readiness.
Served as the primary escalation point for network and system issues, troubleshooting infrastructure and security incidents with engineering and IT teams.
Configured Site24x7 and CloudWatch dashboards and alerts for infrastructure, SSL certificates, DNS, and security events; supported backup, disaster recovery, and operational resilience initiatives.

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