Home › Companies › Core One › Senior Systems Administrator - Temp
Senior Systems Administrator - Temp
Core One · Tampa, FL · On Site · Deleted · Greenhouse
Job facts
| Field | Value |
|---|---|
| Company | Core One |
| Title | Senior Systems Administrator - Temp |
| Normalized title | - |
| Department / team | Operational Support |
| Location | Tampa, FL, United States |
| Work model | On Site |
| Employment type | - |
| Salary | - |
| Status | deleted |
| ATS provider | Greenhouse |
| Posted / first seen | 2026-04-10 / 2026-05-29 |
| Changed / last seen | 2026-06-03 / 2026-06-01 |
Related slices
| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from Core One. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through Greenhouse. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in Tampa. | Open |
| Department jobs | Active postings in Operational Support. | Open |
| Work model jobs | Active On Site postings. | Open |
| Lifecycle events | Open, update, close, and reopen events for this posting. | Open |
| Original posting | Canonical source or apply URL captured from the ATS. | Open |
Linked records
| Company | Core One |
| Source | e1339707-90d6-45ea-bc83-bb048405990c |
| ATS provider | Greenhouse |
Description
Join our team at Core One! Our mission is to be at the forefront of devising analytical, operational and technical solutions to our Nation's most complex national security challenges. In order to achieve our mission, Core One values people first! We are committed to recruiting, nurturing, and retaining top talent! We offer a competitive total compensation package that sets us apart from our competition. Core One is a team-oriented, dynamic, and growing company that values exceptional performance!
Summary
Core one is Seeking a temporary Senior Systems administrator to provide systems administration and technical support for Modeling & Simulation (M&S) and enterprise network environments, including Linux/Windows systems, VMware, and associated hardware/software infrastructure. Responsible for system maintenance, patching, troubleshooting, user administration, infrastructure monitoring, cybersecurity compliance, and integration of new technologies to ensure secure and reliable operation of mission-critical environments. This is a temporary assignment supporting immediate program requirements with an anticipated duration of approximately 4 months.
Responsibilities
Provide on-site Linux and Windows system administration, network, and end-user support for the operation and maintenance of Modeling & Simulation (M&S) and other network systems to include hardware, software, and communications interface for the M&S and other various networks.
Uses specialized knowledge of operating systems including installation, configuration, maintenance, patching, triage, and hardening. Able to monitor infrastructure and operating system level services.
Develops technical solutions to complex problems which require the regular use of ingenuity and creativity.
Review, test, and integrate newly acquired hardware, software (to include commercial or government developed software), and firmware.
Perform systems administration of Linux systems with Red Hat operating system, Windows client and server, and VMware virtual environment.
Perform day-to-day systems administration to include establishing/maintaining/purging users accounts; trouble shooting/auditing the systems/network and taking remedial corrections; performing backups of user and OS files; adherence and implementation of all client and government security/cybersecurity regulations, policies, procedures, guidelines to ensure systems/networks are secure; Research and develop life cycle replacement plan and implement /develop/coordinate systems accreditation with government agencies.
Required Qualifications:
Active TS/SCI clearance
10+ years' experience and Bachelor's degree in related field
Information Assurance Technology (IAT) Level II Certification required (to include Baseline Certification, Computing Environment/Operating System Certificate, and Continuous Education), IAW DoD 8570.01-M
Extensive Linux/Windows/VMware experience and expertise; broad experience with a variety of legacy and current software and hardware systems
Expertise in systems security testing and hardening, data integration, system documentation, automation scripting, and troubleshooting
Ability to work independently on highly sensitive and critical projects and systems
Desired Qualifications:
Experience working on a Combatant Command staff or equivalent a plus
Experience working with DELL EMC storage
Experience working with Microsoft System Center Configuration Manager
Experience working with VMware vCenter server and vSphere
Knowledge of Joint Operations a plus
Experience with the USCENTCOM AOR a plus
Masters Degree in a related field a plus
Core One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
__PRESENT
__PRESENT
Full job record
| Job ID | 62f944f3ddbad14626ccd86ce04b974434cabdd8 |
| Org ID | a5d09ed9-38ce-4330-9284-fe4f7888f374 |
| Source ID | e1339707-90d6-45ea-bc83-bb048405990c |
| Board ID | e1339707-90d6-45ea-bc83-bb048405990c |
| Provider | greenhouse |
| Provider Job Key | 8502584002 |
| Title | Senior Systems Administrator - Temp |
| Normalized Title | — |
| Status | deleted |
| Active | no |
| Location Text | Tampa, FL |
| Department | Operational Support |
| Team | — |
| Employment Type | — |
| Workplace Type | on_site |
| Remote Policy | — |
| Country | United States |
| Region | FL |
| City | Tampa |
| Salary Raw | — |
| Salary Min | — |
| Salary Max | — |
| Salary Currency | — |
| Salary Period | — |
| Source URL | https://job-boards.greenhouse.io/coreone/jobs/8502584002 |
| Apply URL | https://job-boards.greenhouse.io/coreone/jobs/8502584002 |
| First Seen At | 2026-05-29 22:42:30Z |
| Last Seen At | 2026-06-01 10:32:06Z |
| Last Checked At | 2026-06-03 12:05:56Z |
| Last Changed At | 2026-06-03 12:05:56Z |
| Inactive At | 2026-06-03 12:05:56Z |
| Source Posted At | 2026-04-10 19:18:06Z |
| Source Updated At | 2026-04-30 18:07:18Z |
| Raw Payload Uri | s3://bluework-jobs-prod-raw-590183727216/raw/provider=greenhouse/board=coreone/date=2026-06-01/2026-06-01T10-32-05-810Z-c12a59de73a3412e9b2b00f2031b75054ec20659278c5b2849852e5379952bb3.json |
Event Fields
{
"content_hash": "0eada526c734d5425b19046bc09e6f4d229595af4f8b6946a5207ef5280d960b",
"source_hash": "78f9fdf0f5b6540bcd9707f6ee552c978c06fe80db035933a3b36ccdc25d7226",
"last_changed_at": "2026-06-03T12:05:56.519Z",
"active_status": "deleted"
}Parsed Structured
{
"language": "en",
"location": {
"raw": "Tampa, FL",
"city": "Tampa",
"region": "FL",
"country": "United States",
"is_remote": false,
"confidence": 0.9
},
"salary_max": null,
"salary_min": null,
"inferred_at": "2026-06-01T10:32:06.024Z",
"launch_scope": {
"reason": "english_us_canada",
"included": true,
"language": "en",
"location": {
"raw": "Tampa, FL",
"city": "Tampa",
"region": "FL",
"country": "United States",
"is_remote": false,
"confidence": 0.9
},
"countries": [
"United States"
]
},
"remote_policy": null,
"salary_period": null,
"workplace_type": "on_site",
"salary_currency": null
}Extensions
{}Native Structured
{
"title": "Senior Systems Administrator - Temp",
"offices": [
{
"id": 4034222002,
"name": "Tampa, FL",
"location": "Tampa, Florida, United States",
"child_ids": [],
"parent_id": null
}
],
"language": "en",
"location": {
"name": "Tampa, FL"
},
"metadata": [
{
"id": 102716165002,
"name": "Category",
"value": null,
"value_type": "short_text"
}
],
"updated_at": "2026-04-30T14:07:18-04:00",
"departments": [
{
"id": 4106779002,
"name": "Operational Support",
"child_ids": [
4132101002,
4112562002,
4125990002
],
"parent_id": null
}
],
"company_name": "Core One",
"requisition_id": 6396163002,
"first_published": "2026-04-10T15:18:06-04:00",
"application_deadline": null
}Get this page with API
Rendered from the bluedoor Job Postings API. Reproduce it:
GET https://api.bluedoor.sh/job-postings/v1/jobs/62f944f3ddbad14626ccd86ce04b974434cabdd8?include=descriptionJSONGET https://api.bluedoor.sh/job-postings/v1/orgs/a5d09ed9-38ce-4330-9284-fe4f7888f374JSONGET https://api.bluedoor.sh/job-postings/v1/sources/e1339707-90d6-45ea-bc83-bb048405990cJSONGET https://api.bluedoor.sh/job-postings/v1/jobs/62f944f3ddbad14626ccd86ce04b974434cabdd8/eventsJSON