Home › Companies › Sosi1 › HR Administrator
HR Administrator
Sosi1 · Reston, VA, United States · Hybrid · Active · SmartRecruiters
Job facts
| Field | Value |
|---|---|
| Company | Sosi1 |
| Title | HR Administrator |
| Normalized title | - |
| Department / team | Human Resources |
| Location | Reston, VA, United States |
| Work model | Hybrid / Hybrid |
| Employment type | Full Time |
| Salary | - |
| Status | active |
| ATS provider | SmartRecruiters |
| Posted / first seen | 2026-06-02 / 2026-06-03 |
| Changed / last seen | 2026-06-03 / 2026-06-23 |
Related slices
| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from Sosi1. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through SmartRecruiters. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in Reston. | Open |
| Department jobs | Active postings in Human Resources. | Open |
| Work model jobs | Active Hybrid 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 | Sosi1 |
| Source | 034d3260-e727-4450-bb59-4990471b7cb8 |
| ATS provider | SmartRecruiters |
Description
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
Ready to be the heartbeat of an HR team that moves fast, cares deeply, and makes a real difference for every employee — from day one?
At SOSi, our people are our mission. As our HR Administrator, you'll shape how every new hire experiences joining this company, champion the programs that keep our team engaged and recognized and be the trusted go-to resource employees turn to when it matters most. We're a team that embraces smarter ways of working: we expect you to bring curiosity and confidence in applying AI tools to streamline the manual, repetitive work that has historically defined HR administration — so you can spend more of your energy on the human side of HR. If you're organized, energized by variety, love being the person who makes things happen, and are excited about working at the intersection of people and technology, this role was built for you.
What you'll do
Hit the ground running managing our full recruiting administration — posting and monitoring requisitions in the ATS, generating offer letters, and owning pre-employment documentation with precision. You'll leverage AI-assisted tools to accelerate drafting, tracking, and reporting across these workflows, cutting cycle times without sacrificing accuracy. You'll be the architect of an onboarding experience that sets new hires up for success: guiding employees through the SOSi SPARK program, leading orientation sessions and making sure every piece of compliance documentation — including I-9 and E-Verify — is buttoned up.
Beyond onboarding, you'll keep the engine running across a wide range of HR operations — and you'll look for every opportunity to make those operations faster and more consistent through intelligent automation:
Maintain accurate employee data and personnel files in HR systems, applying AI-driven auditing and data hygiene practices to reduce manual error. Manage the HR inbox, incoming mail, employment verifications, and unemployment claims — using smart triage and templating tools to handle volume efficiently. Process purchasing requests. Actively participate in HR led employee communication efforts in SOSi Scope reports, and oversee HR content on SOSi Connect. Support our Total Rewards team through compensation actions, track performance dates, and create job codes in UKG. Assist with Defense Base Act claims administration. Oversee various areas supporting Talent Development such as our SOSi Education Reimbursement program. You'll also play a visible, high-impact role in our people culture — bringing employee recognition programs to life, including the SOSi High Five Awards, coordinating the global engagement initiatives defined in SOSi IGNITE, and being the kind of HR professional employees genuinely trust working with.
What you bring
Two+ years in an HR coordination or administrative role. Demonstrated ability to apply AI tools (such as Microsoft Copilot, ChatGPT, or similar) to automate routine tasks, synthesize information, and improve process efficiency. Sharp attention to detail and sound, independent judgment. Enthusiasm, drive, and energy for growth. Excellent written and verbal communication skills. Proven ability to manage competing deadlines in a fast-paced environment. Proficiency in Microsoft Office Suite. Absolute discretion with sensitive and confidential information. Experience with HR or talent management platforms. Background supporting government, defense, or large-scale service contracts.
The environment
This is a fast-paced, dynamic office where no two days look the same — and where a willingness to continuously improve how work gets done is just as valued as getting it done.
Hybrid work schedule with 2 days in office and 3 days of remote work.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Full job record
| Job ID | 7504a51c01793d9dda189a4c69276809884945fc |
| Org ID | 5a59924f-82b0-46db-a713-0bb2cbbe3d35 |
| Source ID | 034d3260-e727-4450-bb59-4990471b7cb8 |
| Board ID | 034d3260-e727-4450-bb59-4990471b7cb8 |
| Provider | smartrecruiters |
| Provider Job Key | 3743990013432985 |
| Title | HR Administrator |
| Normalized Title | — |
| Status | active |
| Active | yes |
| Location Text | Reston, VA, United States |
| Department | Human Resources |
| Team | — |
| Employment Type | full_time |
| Workplace Type | hybrid |
| Remote Policy | hybrid |
| Country | United States |
| Region | VA |
| City | Reston |
| Salary Raw | Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide. Ready to be the heartbeat of an HR team that moves fast, cares deeply, and makes a real difference for every employee — from day one? At SOSi, our people are our mission. As our HR Administrator, you'll shape how every new hire experiences joining this company, champion the programs that keep our team engaged and recognized and be the trusted go-to resource employees turn to when it matters most. We're a team that embraces smarter ways of working: we expect you to bring curiosity and confidence in applying AI tools to streamline the manual, repetitive work that has historically defined HR administration — so you can spend more of your energy on the human side of HR. If you're organized, energized by variety, love being the person who makes things happen, and are excited about working at the intersection of people and technology, this role was built for you. What you'll do Hit the ground running managing our full recruiting administration — posting and monitoring requisitions in the ATS, generating offer letters, and owning pre-employment documentation with precision. You'll leverage AI-assisted tools to accelerate drafting, tracking, and reporting across these workflows, cutting cycle times without sacrificing accuracy. You'll be the architect of an onboarding experience that sets new hires up for success: guiding employees through the SOSi SPARK program, leading orientation sessions and making sure every piece of compliance documentation — including I-9 and E-Verify — is buttoned up. Beyond onboarding, you'll keep the engine running across a wide range of HR operations — and you'll look for every opportunity to make those operations faster and more consistent through intelligent automation: Maintain accurate employee data and personnel files in HR systems, applying AI-driven auditing and data hygiene practices to reduce manual error. Manage the HR inbox, incoming mail, employment verifications, and unemployment claims — using smart triage and templating tools to handle volume efficiently. Process purchasing requests. Actively participate in HR led employee communication efforts in SOSi Scope reports, and oversee HR content on SOSi Connect. Support our Total Rewards team through compensation actions, track performance dates, and create job codes in UKG. Assist with Defense Base Act claims administration. Oversee various areas supporting Talent Development such as our SOSi Education Reimbursement program. You'll also play a visible, high-impact role in our people culture — bringing employee recognition programs to life, including the SOSi High Five Awards, coordinating the global engagement initiatives defined in SOSi IGNITE, and being the kind of HR professional employees genuinely trust working with. What you bring Two+ years in an HR coordination or administrative role. Demonstrated ability to apply AI tools (such as Microsoft Copilot, ChatGPT, or similar) to automate routine tasks, synthesize information, and improve process efficiency. Sharp attention to detail and sound, independent judgment. Enthusiasm, drive, and energy for growth. Excellent written and verbal communication skills. Proven ability to manage competing deadlines in a fast-paced environment. Proficiency in Microsoft Office Suite. Absolute discretion with sensitive and confidential information. Experience with HR or talent management platforms. Background supporting government, defense, or large-scale service contracts. The environment This is a fast-paced, dynamic office where no two days look the same — and where a willingness to continuously improve how work gets done is just as valued as getting it done. Hybrid work schedule with 2 days in office and 3 days of remote work. Working at SOSi All interested individuals will receive consideration and will not be discriminated against for any reason. |
| Salary Min | — |
| Salary Max | — |
| Salary Currency | — |
| Salary Period | hour |
| Source URL | https://jobs.smartrecruiters.com/SOSi1/3743990013432985-hr-administrator |
| Apply URL | https://jobs.smartrecruiters.com/SOSi1/3743990013432985-hr-administrator?oga=true |
| First Seen At | 2026-06-03 10:42:18Z |
| Last Seen At | 2026-06-23 10:46:13Z |
| Last Checked At | 2026-06-23 10:46:13Z |
| Last Changed At | 2026-06-03 10:42:18Z |
| Inactive At | — |
| Source Posted At | 2026-06-02 20:10:34Z |
| Source Updated At | — |
| Raw Payload Uri | s3://job-postings-prod-raw-590183727216/raw/provider=smartrecruiters/board=sosi1/date=2026-06-23/2026-06-23T10-46-05-342Z-e2535d1d6bd8bdcb9a6fdef8494ac5d5392024cac69c3be0bcc72a4cf7d98f86.json |
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