AeroLeads people directory · profile

Mark D. Email & Phone Number

Systems Administrator at Lawrence Livermore National Laboratory at Lawrence Livermore National Laboratory
Location: San Francisco Bay Area, United States, United States 3 work roles
LinkedIn matched
✓ Verified May 2026 2 data sources Profile completeness 71%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Lawrence Livermore National Laboratory
Role
Systems Administrator at Lawrence Livermore National Laboratory
Location
San Francisco Bay Area, United States, United States
Company size
6681 employees

Who is Mark D.? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Mark D. is listed as Systems Administrator at Lawrence Livermore National Laboratory at Lawrence Livermore National Laboratory, a company with 6681 employees, based in San Francisco Bay Area, United States, United States. AeroLeads shows a matched LinkedIn profile for Mark D..

Mark D. previously worked as Systems Administrator at Lawrence Livermore National Laboratory and Systems Adminstrator at Crosslink Professional Tax Solutions.

Company email context

Email format at Lawrence Livermore National Laboratory

This section adds company-level context without repeating Mark D.'s masked contact details.

Lawrence Livermore National Laboratory

Review company-level records connected to Mark D. before choosing the right outreach path.

View email format View company profile Management contacts
Profile bio

About Mark D.

Proficient, service oriented, and driven professional with 15+ years of hands-on experience administering full-spectrum systems management and IT Infrastructure engineering functions.Stellar history of planning, implementing, and supporting enterprise class Data Center solutions, with focus on technology trends and leveraging Windows and Linux Systems engineering expertise.Substantial success utilizing communication skills and strong analytical skills to lead and oversee systems development endeavors and solve problems with creativity and a friendly and patience demeanor.Profound aptitude for creating and implementing strategic plans of IT program/project design, while ensuring adherence to quality and service-delivery standards.SIGNATURE ACHIEVEMENTS• Optimized application performance and upgraded client's payroll software by revamping server hardware; performed data migration and O/S, network configuration of over 100 Linux servers, decommissioned 150 servers and successfully increased service levels with zero-hour loss.• Achieved cost savings of over $21,000 for the maintenance of the Data Center servers through contract negotiations and updating technologies. Managed to obtain training credits worth $8,000 for aged equipment.• Formulate the organization's data migration methodology from ground up, affecting the visibility of and communication with ADP teams; results include improved time management for server replacement deliverables, budget controls, and client satisfaction. • Provided technical training and mentored 4 international ADP team members on the daily operations, procedural and troubleshooting competencies required to support business-critical applications for the ADP Data Centers. Results increased technical support, customer service support and lowered customer calls.• Defined/implemented improved corporate policies for effective implementation of new layer 3 distributed systems network migration. Outlining network protocols, hardware and architecture to ensure proper electrical systems and cooling was part of the project charter.• Minimized operating costs and executed multiple high-profile data center migrations and consolidations with no business impact. Worked with development teams to identify/map connections, implemented VMware servers, network and firewall changes, and coordinated all testing efforts.

Current workplace

Mark D.'s current company

Company context helps verify the profile and gives searchers a useful next step.

Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory
Systems Administrator at Lawrence Livermore National Laboratory
livermore, california, united states
Website
llnl.gov
Employees
6681
AeroLeads page
Company profile
View company profile Email format
3 roles · 20 years

Mark D. work experience

A career timeline built from the work history available for this profile.

Systems Adminstrator

Crosslink Professional Tax Solutions
  • IT Systems Administrator teaming with cross-functional teams to plan, deploy and maintain the overall infrastructure and daily operations to ensure the stable operation of the company business for providing year-round.
  • Manage and support vSphere ESXi 6.5 and 6.7 environments across multiple company Data Center locations.
  • Install, configure, and maintain the Windows 2012, 2016, and 2019 Server environments across the Crosslink enterprise.
  • Administer the maintenance, development and evaluation of all server SAN storage including Tegile, HP Nimble, Synology, and NetApp environments.
  • Oversee the daily operation and maintenance of all on-site and off-site backup systems using VEEAM Backup and Replication.
  • Maintain and direct all activities to resolve both hardware and software installation, configuration and issues compliant with the business's internal and external service agreements.
2020 - Jun 2022

Implementation Engineer Iii

Adp

Pleasanton, CA

  • Spearheaded end-to-end implementation and system administration functions, as well as analyzed prevalent and future business needs to facilitate informed decision making by collaborating with internal/external clients.
  • Governed full-scope completion of projects, including migration of primary data center and server upgrades; liaised with global teams and external vendors for project planning, testing, implementation, and network.
  • Guided and led implementation teams through network configuration, Linux/Microsoft O/S server patches, and installations.
  • Drove level III troubleshooting functions and conducted problem analysis resolution of hardware/software issues, reviewed statistics, system logs, coordination of technology research, installation, program and.
  • Validated the Return to Operation (RTO) objectives aligned with the established policies and procedures for data recovery on a semi-annual basis.
  • Directed IT and CRM engineers on subjects spanning incident and problem management, service-level management, critical business process planning, and execution to ensure CRM applications were available in accordance.
2006 - 2019 ~13 yrs
Team & coworkers

Colleagues at Lawrence Livermore National Laboratory

Other employees you can reach at llnl.gov. View company contacts for 6681 employees →

DS Dale Snearly Dale Snearly Colleague at Lawrence Livermore National Laboratory Livermore, California, United States, United States View → KM Kimberly Moore Kimberly Moore Colleague at Lawrence Livermore National Laboratory San Francisco Bay Area, United States View → CO Chuzo Okuda Chuzo Okuda Colleague at Lawrence Livermore National Laboratory San Francisco Bay Area, United States View → DW Dina Weilhammer Dina Weilhammer Colleague at Lawrence Livermore National Laboratory Oakland, California, United States, United States View → IR Ignacio Rodriguez Ignacio Rodriguez Colleague at Lawrence Livermore National Laboratory Manteca, California, United States, United States View → EM Emily Malcolm-Avery Emily Malcolm-Avery Colleague at Lawrence Livermore National Laboratory Livermore, California, United States, United States View → BT Brandon Talamini Brandon Talamini Colleague at Lawrence Livermore National Laboratory San Francisco Bay Area, United States View → BF Brian Felker Brian Felker Colleague at Lawrence Livermore National Laboratory Livermore, California, United States, United States View → JG Julie Giannini Julie Giannini Colleague at Lawrence Livermore National Laboratory Livermore, California, United States, United States View → BP Barbara Peterson Barbara Peterson Colleague at Lawrence Livermore National Laboratory Oakland, California, United States, United States View →
FAQ

Frequently asked questions about Mark D.

Quick answers generated from the profile data available on this page.

What company does Mark D. work for?

Mark D. works for Lawrence Livermore National Laboratory.

What is Mark D.'s role at Lawrence Livermore National Laboratory?

Mark D. is listed as Systems Administrator at Lawrence Livermore National Laboratory at Lawrence Livermore National Laboratory.

Where is Mark D. based?

Mark D. is based in San Francisco Bay Area, United States, United States while working with Lawrence Livermore National Laboratory.

What companies has Mark D. worked for?

Mark D. has worked for Lawrence Livermore National Laboratory, Crosslink Professional Tax Solutions, and Adp.

Who are Mark D.'s colleagues at Lawrence Livermore National Laboratory?

Mark D.'s colleagues at Lawrence Livermore National Laboratory include Dale Snearly, Kimberly Moore, Chuzo Okuda, Dina Weilhammer, and Ignacio Rodriguez.

How can I contact Mark D.?

You can use AeroLeads to view verified contact signals for Mark D. at Lawrence Livermore National Laboratory, including work email, phone, and LinkedIn data when available.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the Mark D. you were looking for.

Mark D
Mark D
Fractional Biotech Recruiter Supporting Stealth, Seed, And Start-Up Level Biotechs. Available On An As-Needed, Affordable, Hourly Rate Basis To Help Grow Your Company With Top Talent.
United States
Mark Albin
Mark Albin
It Manager Specializing In Remote Infrastructure Management, Network Administration And Cybersecurty
Madison, Al
1 email domain
View similar profiles