Justin Lawrence
Colorado Springs,CO
Summary
Results-driven Systems Administrator with 5+ years of experience in Windows and Linux environments supporting defense, DoD, and government systems. Proven expertise in Active Directory, GPO administration, STIG compliance, system hardening, DevSecOps, and IAM. Familiar in VMware, OpenShift, CI/CD tools (Atlassian, Git), and containerized platforms. Holds an active Secret Clearance and excels in Agile environments.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Identity and Access Management (IAM) Administrator
Amentum
Colorado Springs, CO
12.2022 - 06.2025
- Designed, implemented, and maintained Identity and Access Management (IAM) solutions across classified and unclassified systems, ensuring compliance with DoD standards.
- Performed GPO creation and enforcement to manage user and machine policies across secure environments.
- Administered Active Directory and Group Policy Objects to control access, automate configurations, and ensure consistent system security baselines.
- Ensured full compliance with STIG (Security Technical Implementation Guide) and executed vulnerability scanning and remediation across multiple platforms (Windows/Linux).
- Provided technical leadership in a DevSecOps environment, leveraging tools like Git and Atlassian (Jira, Confluence) to automate configuration management and continuous integration.
- Conducted system validation through automated testing for software and platform requirement verification.
- Maintained and optimized a VMware Horizon virtual desktop infrastructure, supporting distributed users across classified networks.
- Supported Agile development processes, participating in sprint planning and delivering infrastructure solutions that met mission timelines and security requirements.
Systems Engineer
Colorado Professional Resources / Kratos
Colorado Springs, CO
07.2022 - 12.2022
- Provided Tier 3 systems administration and engineering support for Linux and Windows-based servers across a defense operations network.
- Resolved escalated issues related to Active Directory, SCCM, WSUS, GPO, and authentication failures.
- Supported deployment and maintenance of secure systems in accordance with DoD cybersecurity protocols.
- Performed performance analysis, capacity planning, and patch management to ensure system reliability and availability.
- Collaborated with software developers and cybersecurity teams to harden systems and integrate security automation tools.
- Developed system documentation including SOPs, change logs, and configuration guides.
IT Technician
GStek
Colorado Springs, CO
03.2022 - 07.2022
- Responded to support requests from end-users and patiently walked individuals through basic troubleshooting tasks.
- Maintained office PCs, networks and mobile devices.
- Proved successful working within tight deadlines and a fast-paced environment.
- Managed system-wide operating system and software deployments as well as related software upgrade problems.
- Maintained operational readiness of client systems and peripherals including printers, secure phones, and video conferencing systems.
- Provided client-side support to users across multiple security enclaves, resolving issues with connectivity, system performance, and application compatibility.
- Assisted with maintenance and documentation of DoD ticketing systems, ensuring compliance with SLAs and proper issue resolution tracking.
IT Technician Help Desk Support
Apex (Leidos)
Colorado Springs, CO
12.2021 - 05.2022
- Maintained office PCs, networks and mobile devices.
- Responded to support requests from end-users and patiently walked individuals through basic troubleshooting tasks.
- Proved successful working within tight deadlines and a fast-paced environment.
- Configured systems according to prescribed software and hardware frameworks.
- Provided client-side support to users across multiple security enclaves, resolving issues with connectivity, system performance, and application compatibility.
- Assisted with maintenance and documentation of DoD ticketing systems, ensuring compliance with SLAs and proper issue resolution tracking.
Imaging Specialist
EviCore healthcare
Colorado Springs, CO
11.2020 - 12.2021
- Kept documents moving in proper flow by applying strong organizational, planning and multitasking abilities.
- Demonstrated product features by employing knowledge of technology and gadgets.
- Generated referrals by fostering exceptional customer service and satisfaction.
- Walked customers through online demonstrations to support better understanding of product features.
- Assisted customers both in person and by phone, answering questions about different products.
- Demonstrated products to customers, discussed features and redirected objections to capture sales.
- Educated customers on product and service offerings.
- Addressed all customer inquiries and resolved complaints.
- Updated software versions with patches and new installations to close security loopholes and protect users.
- Configured new employee work stations, including all hardware, software and peripheral devices.
- Installed appropriate security patches to eliminate security vulnerabilities.
- Identified hardware issues caused by component failures using approved diagnostic tools.
- Installed, configured, and setup PCs in all stores for optimal operation and reporting.
- Consulted via telephone to understand user problems, run through testing scripts and ask probing questions to locate root causes.
Information Technology Engineer
Tek-Experts
Colorado Springs, CO
08.2019 - 09.2020
- Knowing security protocols, IT systems, networking infrastructures and database systems Managing multiple projects simultaneously
- Communicating complex information to a non-technological audience
- Troubleshooting technology problems Assigned the tickets which are out of scope to Service Desk/Other Teams.
- Communicating complex information to a non-technological audience Personal
- Computing hardware, software, and MS Windows operating systems Mobile communications devices and applications
- Performed troubleshooting duties and provided server management expertise via remote and in-person interactions.
- Scheduled and coordinated software update and hardware replacements.
- Offered technical assistance to clients to facilitate seamless installations and updates.
- Assisted with implementation and management of quality assurance efforts.
- Completed scheduled services and installations, preventative maintenance and calibration.
- Planned, implemented and integrated updated system-oriented projects.
- Provided status updates to keep upper management informed and to reach goals.
- Defined technical integration strategy and developed integration plans.
- Studied network security logs to identify and eliminate outside and internal threats.
- Analyzed requirements and implemented systems to deliver comprehensive development life cycle solutions.
- Kept customers informed about issue resolution progress and provided updated estimated times of resolution on ongoing basis.
- Coordinated ongoing performance assurance for software applications and automated performance test scripts.
- Managed user profiles, security access and shared file structures.
- Tested performance, functionality and security of network systems, individual workstations and peripheral devices.
- Diligently followed up with customers about existing orders, informing on status and responding to questions.
- Maintained composure and patience in face of difficult customer situations, applying de-escalation techniques and positive customer support.
- Developed organizational filing systems for confidential customer records and reports.
- Created new accounts, reset passwords and configured access to servers and file management software for users.
- Developed and maintained positive customer relationships resulting in increased account services and expansion.
- Researched issues on various computer systems and databases to determine resolutions to problems and answer inquiries.
- Reviewed support cases for technical and troubleshooting accuracy and identified needed improvements in processes.
- Maintained calm, professional demeanor when faced with high demand, high volume workloads.
- Conducted technical reviews and trade-off studies to identify purpose, audience and scope.
- Assisted in technical support process refinement to improve customer service and support.
- Mentored other technical engineers and support professionals to provide professional development and skill enhancement.
- Assessed customer bug reports and enhancement requests and prioritized development to streamline response.
- Directed account management and customer training on company technical software and tools for new accounts and new users.
- Troubleshot daily IT desktop client issues, supporting multiple departments and various offices.
- Built and maintained successful relationships with service providers, vendors, dealers and consumers.
- Investigated technical issues using knowledge base and personal experience to complete timely resolutions.
- Tested and troubleshot application and documented issue resolutions for development team.
- Identified areas of applications for regression testing following software updates, system changes or functionality changes to avoid unnecessary downtime and recoding.
Tier 2 IT Help Desk
General Dynamic IT
Bossier City, LA
07.2018 - 07.2019
- Personal computing and communication configuration and installation
- Advanced technical troubleshooting including root cause analysis and resolution
- Technical writing for configuration and procedures
- Verify PC has been installed – including hardware, software, user’s data, and profiles
- Knowledge of Microsoft Exchange, Excel, Outlook, SharePoint and other server applications
- Ability to ask questions to isolate problem quickly (either solve or escalate)
- Set up new desktop systems and configured laptops for incoming employees, loading required software and server permissions.
- Conferred with vendors to obtain replacement hardware or software and escalate more complex concerns.
- Delivered local and remote Tier 1 IT support for hardware and software to company personnel.
- Updated software versions with patches and new installations to close security loopholes and protect users.
- Reviewed support cases for technical and troubleshooting accuracy and identified needed improvements in processes.
- Consulted via telephone to understand user problems, run through testing scripts and ask probing questions to locate root causes.
- Observed system functioning and entered commands to test different areas of operations.
- Documented repair processes and helped streamline procedures for future technical support actions.
- Disassembled computer systems to troubleshoot and resolve hardware issues.
- Troubleshot daily IT desktop client issues, supporting multiple departments and various offices.
- Removed malware and viruses from laptops and desktop systems using specialized software.
- Diligently followed up with customers about existing orders, informing on status and responding to questions.
- Researched issues on various computer systems and databases to determine resolutions to problems and answer inquiries.
- Built and maintained successful relationships with service providers, vendors, dealers and consumers.
- Tested performance, functionality and security of network systems, individual workstations and peripheral devices.
- Maintained composure and patience in face of difficult customer situations, applying de-escalation techniques and positive customer support.
- Assisted in technical support process refinement to improve customer service and support.
- Developed and maintained positive customer relationships resulting in increased account services and expansion.
- Explained technology-related details in easy-to-understand terms to individuals from all walks of life and in various job positions.
- Investigated technical issues using knowledge base and personal experience to complete timely resolutions.
- Kept customers informed about issue resolution progress and provided updated estimated times of resolution on ongoing basis.
- Conducted end-user training and provided technical support on hardware, software and network issues.
- Trained new employees on support processes, procedures and knowledge base.
CSA Tech Tier2
Insight Global
Denver, CO
05.2017 - 12.2017
- IT Security Operations
- Personal computing security measures including Anti-virus, Anti-Malware, and data encryption
- Advanced technical troubleshooting including root cause analysis and resolution
- Reviewed account and service histories to identify trends and issues.
- Supported customer service goals and enhanced relations through friendly, knowledgeable and positive communication.
- Delivered fast, friendly and knowledgeable service for routine questions and service complaints.
- Escalated customer satisfaction ratings by offering valuable insights to customers' needs and expectations.
- Circulated among patrons and customers to keep abreast of emergent security situations.
- Investigated alarms and disturbances to maintain safety.
- Researched, planned and implemented small- and large-scale improvements to address changing conditions and needs.
- Completed problem analysis to evaluate system issues and determine root causes.
- Provided training and support to users for both hardware and software needs.
- Managed user profiles, security access and shared file structures.
- Kept hardware and software systems current with latest patches and current licenses.
- Troubleshot daily IT desktop client issues, supporting multiple departments and various offices.
- Kept customers informed about issue resolution progress and provided updated estimated times of resolution on ongoing basis.
- Devised automation, backup and recovery protocols to preserve and safeguard data.
- Directed account management and customer training on company technical software and tools for new accounts and new users.
- Coordinated ongoing performance assurance for software applications and automated performance test scripts.
- Maintained composure and patience in face of difficult customer situations, applying de-escalation techniques and positive customer support.
- Performed continuous assessments of network structure, business content filters and security firewalls.
- Researched, documented and escalated support cases to higher levels of support when unable to resolve issues using available resources.
- Tested performance, functionality and security of network systems, individual workstations and peripheral devices.
Software Tester Intern
Oracle
Broomfield, CO
06.2012 - 06.2013
- Reported on project testing status, develop test plans and followed guidelines set by test plan
- Tested networking features across OS platforms Built test environments, updated bug database and maintained test environment for automated software testing
- Tracked software engineering, test procedures and performed programming depending upon project or group
- Developed automated tests to improve reliability and repeatability of frequently ran software testing
- Enhanced testing, project quality metrics by working with test engineers, assessed, introduced new testing tools
- Reviewed application specification and created documents to identify test scenarios Used C/C++, Python, Java, JavaScripting software.
- Conducted load tests to determine server operating parameters.
- Designed and updated test cases to complete consistent manual tests.
- Reviewed configuration files, logs and sections of code to complete debugging and locate breakdown sources.
- Tracked software bugs and detailed all information regarding findings and resolution techniques in documentation for Software Engineers.
- Produced test scripts for new automated software testing rounds.
- Worked with Agile and Scrum methodologies to accomplish project milestones and meet demanding timelines.
- Tested functionality, performance and compliance of each product against design specifications to maintain strong development standards and high customer satisfaction.
- Worked with off-site teams to complete timely tests and facilitate smooth product releases.
Education
Master of Science - Computer Network & Communication Management
Keller Graduate School Of Management
Westminster, CO2020
Bachelor of Science - Computer Information Systems, Systems Analysis & Integration
DeVry University
Westminster, CO2017
Skills
- Systems Administration: Windows/Linux, AD, GPOs, PaaS, SCCM, and WSUS
- Security Compliance: STIG, MFA, Vulnerability Remediation, IAM
- Familiar: Virtualization/Cloud: VMware, OpenShift, Horizon
- DevSecOps Tools: Atlassian, Git
- Scripting: Bash, PowerShell, Linux, Java
- Backup & Imaging: System backups, imaging, system recovery
- Networking: DNS, DHCP, VPNs
Certification
Security +
Interests
- Traveling
- New Computer Technology
- Model Cars
- Gaming
- Working Out
- Motorcycle Rider
- Archery Marksmanship
Timeline
Identity and Access Management (IAM) Administrator
Amentum
12.2022 - 06.2025
Systems Engineer
Colorado Professional Resources / Kratos
07.2022 - 12.2022
IT Technician
GStek
03.2022 - 07.2022
IT Technician Help Desk Support
Apex (Leidos)
12.2021 - 05.2022
Imaging Specialist
EviCore healthcare
11.2020 - 12.2021
Information Technology Engineer
Tek-Experts
08.2019 - 09.2020
Tier 2 IT Help Desk
General Dynamic IT
07.2018 - 07.2019
CSA Tech Tier2
Insight Global
05.2017 - 12.2017
Software Tester Intern
Oracle
06.2012 - 06.2013
Master of Science - Computer Network & Communication Management
Keller Graduate School Of Management
Bachelor of Science - Computer Information Systems, Systems Analysis & Integration
DeVry University