Human Resources Assistant

GTSC is seeking a Human Resources Assistant to support day-to-day HR operations at its Chantilly, Virginia headquarters office.

Responsibilities

• Provide administrative and operational support to members of the Human Resources department on a daily basis.
• Monitor HR inboxes; respond to routine employee questions or route requests to the appropriate HR team member.
• Support employee onboarding and offboarding, including coordination of required documentation, systems activities, and employee communications.
• Process routine employee transactions and data changes in HR systems, including new hires, terminations, status changes, promotions, and other personnel updates.
• Assist with employment verifications and other routine employee documentation requests.
• Support I-9 verification and E-Verify processing and maintain related records.
• Prepare routine HR correspondence, forms, letters, and employee communications using established templates and guidance.
• Maintain accurate electronic personnel records and file HR documentation in the appropriate systems and repositories.
• Support benefits invoice reconciliation by reviewing employee eligibility and coverage details and helping identify and resolve discrepancies.
• Track completion of required corporate, compliance, and employee training.
• Assist with tracking performance review activities and other recurring HR processes.
• Maintain HR trackers, spreadsheets, reports, calendars, and other tools used to manage departmental activities and deadlines.
• Assist with HR compliance audits, document reviews, and records maintenance under the direction of HR staff.
• Support preparation and distribution of HR announcements, presentations, newsletters, employee resources, and other internal communications.
• Support HR projects by gathering information, organizing materials, tracking action items, scheduling activities, and following up with stakeholders.
• Maintain strict confidentiality of employee, company, and proprietary information.
• Perform other duties as assigned.

Requirements

• Bachelor's degree in Human Resources, Communications, Business Administration, Organizational Development, or a related field (highly preferred).
• 1–2 years of professional experience; prior HR, administrative, communications, internship, or office experience.
• Strong written and verbal communication skills, including the ability to draft clear, professional employee communications without error.
• Strong organizational skills with the ability to manage multiple assignments, deadlines, and follow-up items.
• High attention to detail and a commitment to accuracy.
• Ability to learn new systems, processes, and HR concepts quickly.
• Good judgment, including knowing when to escalate questions or issues to another HR team member.
• Ability to handle confidential and sensitive information with discretion and professionalism.
• Comfort communicating with employees, managers, vendors, and other internal and external stakeholders.
• Proficiency with Microsoft Office, including Outlook, Word, Excel, PowerPoint, and Teams.
• Familiarity with HRIS, ATS, SharePoint, or similar business systems is preferred but not required.
• Ability to work independently while also functioning effectively as part of a collaborative HR team.

Technologies

• Microsoft Office
• Outlook, Word, Excel, PowerPoint, Teams
• HRIS, ATS
• SharePoint
• I-9, E-Verify

Physical Requirements

• Ability to commute and work in-office daily.
• Prolonged periods sitting at a desk and working on a computer.
• Occasionally required to lift files, open filing cabinets, and bend or stand as necessary.
• Must be able to communicate effectively in both in-person and virtual work environments.
• Ability to manage repetitive tasks and maintain focus in a fast-paced, deadline-driven environment.

Location: Chantilly, VA (onsite) | Compensation: USD 19–21 per hour | Experience: 1 years