Craig Lash
Adrian,PA
Summary
Detail-oriented professional specializing in Linux systems and AWS cloud management. Known for strong incident response capabilities and automation expertise, contributing to enhanced system reliability and performance.
Expert in vulnerability remediation, I effectively enhance system performance while fostering team collaboration. Committed to optimizing cloud management and ensuring compliance with industry standards.
Overview
31
31
years of professional experience
3
3
Certification
Work History
Linux/AWS/Administrator
Prometheus LLC / Koniag Government Services
12.2022 - Current
- Experienced in AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Trail, & Cloud Formation
- Implement and enforce Red Hat Enterprise Linux (RHEL) STIG configurations across 110+ servers
- Implement and enforce AL2023 STIG configurations across 20+ servers
- Managed and remediated vulnerabilities from ACAS scans on Red Hat Enterprise Linux (RHEL) and other Linux environments, ensuring compliance with DoD standards.
- Automate tasks with Ansible and bash
- Storage management using fdisk, LVM & cloud tool sets
- Provide patching support & upgrading of RHEL OS on monthly basis for applying the security patches for Linux servers.
- Triage and work Linux OS ServiceNow tickets
- Provide support for implementation, troubleshooting and maintenance of Linux IT systems
- Managing Splunk users/roles
- Monitoring Splunk system health
- Upgraded Splunk UF with new releases to utilize the upgraded features
- Upgraded Splunk with new releases to utilize the upgraded features
- Knowledge about Splunk architecture and various components (Indexer, forwarder, search head, deployment server)
- Organized tasks and projects to improve team workflow.
- Work within Agile project teams, attending ceremonies, stand-ups, sprints, & retrospectives
- Every 2 weeks 24x7 support on-call duties
Linux System Administrator/Application Lead
DDC/DCSA/BOC/CSRA/OPM
01.2014 - 12.2022
- Foundation systems management (NetBackup, Nagios, IDM, RedHat Satellite, Wazuh, CyberArk)
- Triage production issues reported via Nagios to maintain system uptime and ensure timely resolution
- Triage emails regarding management system issues reported through Nagios to facilitate prompt resolution.
- Coordinate and prioritize assigned projects to align with operational goals
- Supported system administrators by troubleshooting and resolving reported issues. with open issues
- Linux Admin to support a large Enterprise RedHat environment
- Build VMs using RedHat Satellite on ESXi
- DOD STIG Compliance Auditing
- Nessus Scan remediation for Linux and VMware ESXi
- Monitor security alerts using Tripwire and Wazuh
- Perform monthly Linux patches
- COOP/DR testing and planning
- Monitored and resolved server issues using Nagios to ensure continuous system availability
- Setup alerts using Nagios
- Ticket tracking for dev changes and prod requests
- Ansible scripting and Git tracking
- Make suggestions to dev's on environment changes
- Bash scripting for automation
- Maintain documentation day to day operation
- ServiceNow and Remedy ticketing systems
- Commended for technical, analytical and problem-solving skills; effective task prioritization; and customer service orientation
- Provides support on weekends and odd hours to ensure little to no disruption of local and operational systems during scheduled maintenance and outages
- Every other month provides 24x7 support on-call duties
- Interact with clients to talk and resolve problems and request regarding the complex systems
- Monitoring system logs and email for important messages such as errors and warnings for hardware and software failure errors
- Performed swap space management and installed patches and packages.
- Scheduled jobs and automating processes using CRON and AT
- Configure and manage network interfaces
- Troubleshooting remote server issues in time critical environments
- Proficient at using WebLogic, NetBackup, OSSEC, tripwire, Red Hat Satellite, Red Hat Identity Management, Xceedium, CyberArk, LanSweeper, and VMware
- Serve on a team managing server deployment and allocation of virtual server capacity
- Update Linux OS patches and ensured compliance with STIG requirements
- Provided support on weekends and odd hours to ensure little to no disruption of local and operational systems during scheduled maintenance and outages
- Every other month provided 24x7 support on-call duties
- Address and resolve tickets daily, maintaining high efficiency in support operations
- Managed daily user support and system administration activities to enhance operational efficiency
- Managed and maintained user accounts
- Performing User ID creation, modification, deletion and maintain server security
- Act as part of an incident response team to ensure quick response to information assurance and outage notification.
- Operations and maintenance of any and all servers, remote access and LAN/WAN software and hardware located at the site.
- Install new hardware and software making sure that all components (hardware and software) interface correctly with each other and the network.
- Work with other NM teams and groups to resolve various outages, major network service interruptions, and to provide updates to customers at OPM sites.
- Used server monitoring tools to optimize and expand server and network capabilities.
- Review system logs to determine usage levels, performance, and security posture of systems.
- Report misuse or security breaches immediately to Network Management.
Various job titles; Systems Specialist highlighted
NOMOS Corporation
04.1995 - 01.2014
- Provide customer support for medical device systems by telephone and at customer sites.
- Install medical devices at customer sites including configuration of existing customer systems to recognize and interact with newly installed systems.
- Perform troubleshooting of hardware and software issues to determine root cause.
- Planned, coordinated, and performed activities to investigate and resolve technical problems, improving customer satisfaction.
- Perform installation of all-in-one equipment management, visualization, and ergonomic boom appliance for GE in hospital operating rooms and at trade shows.
- Assembled and tested medical device systems according to written procedures.
- Collaborated with engineering to establish work instructions and test procedures, which enhanced system reliability and reduced error rates.
- Documented service, repair, and installation reports ensuring compliance and traceability for quality assurance.
- Compiled engineering documentation data into MRP system, streamlining data management processes.
- Managed system administration for Linux, UNIX, Windows NT, networks, and Macintosh OS environments.
- Communicated with production workers and developed systems that promote quality.
- Reviewed production documentation for final release of assemblies.
- Inspected assembled components including main boards in accordance with documented test procedures and drawings.
- Inspected fabricated component parts using calibrated tools, gauges, and Auto-Cad Light in accordance with documented inspection procedures and drawings.
- Performed inventory transactions in MRP system.
- Managed and tracked inventory.
- Obtained AMX IV certification for repairing X-Ray equipment, enhancing technical expertise.
- Specialized in developing software and hardware systems for radiation oncology and brachytherapy.
- Work with other departments to identify improvements in products and services.
- Prepared inspection and test reports for inclusion in the device history record.
Education
Network Technology - Monroeville, PA
RETS Institute of Technology
Monroeville, PA01.2003
Skills
- AWS cloud management
- Linux optimization
- Configuration management
- Automation scripting
- Systems monitoring
- Incident response
- Team collaboration
- Problem solving
- Vulnerability remediation
Certification
- ITIL Foundation certificate in IT Service Management
- Security+
- AWS Certified Cloud Practitioner
- Skillsoft Fundamentals of UNIX/LINUX
- Cyber Security Fundamentals
- Linux Academy AWS Concepts
- Ansible Quick Start
- Ansible Playbooks Deep Dive
- Beginner’s Guide to Containers and Orchestration
- Git Quick Start
- YAML Essentials
- The System Administrator's Guide to Bash Scripting
Security Clearance
TS/SCI
Timeline
Linux/AWS/Administrator
Prometheus LLC / Koniag Government Services
12.2022 - Current
Linux System Administrator/Application Lead
DDC/DCSA/BOC/CSRA/OPM
01.2014 - 12.2022
Various job titles; Systems Specialist highlighted
NOMOS Corporation
04.1995 - 01.2014
Network Technology - Monroeville, PA
RETS Institute of Technology