Office Administrator (part-time)

POSITION DESCRIPTION: Pioneering Evolution is seeking a highly organized and experienced Part-Time HR & Office Administrator to support both Human Resources operations and general office administration in a hybrid capacity (remote with on-site requirements in Arlington, VA). This role is ideal for a seasoned professional with a strong background in HR management and administrative support, preferably within the defense, aerospace, or government contracting industries. The HR & Office Administrator will be responsible for maintaining compliance, supporting employee engagement, overseeing day-to-day office operations, and ensuring operational efficiency across personnel and administrative functions. This is a part-time position (approximately 20 hours/week, flexible within core business hours) requiring an active Secret Clearance (preferred) or the ability to obtain one.

RESPONSIBILITIES:

HR Operations & Compliance Maintain accurate and secure personnel records (digital and physical). Support employee onboarding and offboarding processes. Ensure internal HR processes adhere to federal, state, and client-specific labor regulations. Assist with internal audits and compliance reviews. Employee Engagement

Administer HRIS updates, benefits enrollment, and employee data changes. Support employee engagement initiatives and internal communications. Prepare HR reports for leadership and contract compliance. Maintain confidentiality and handle sensitive information with discretion. Recruitment & Talent Support

Assist with candidate scheduling, coordination, and communications. Maintain applicant tracking system (ATS) records and reporting. Support recruitment and talent management initiatives as directed by leadership. Office Administration

Serve as the primary point of contact for day-to-day office operations in Arlington, VA. Manage office supplies, equipment, and vendor relationships. Coordinate meeting logistics, scheduling, and office communications. Assist with timekeeping, travel coordination, and expense tracking as needed. Support leadership with administrative tasks, including document preparation and correspondence. Ensure the office environment supports collaboration, efficiency, and compliance with security requirements. REQUIRED EXPERIENCE:

Minimum of 10 years of progressive HR and/or administrative experience, preferably within the defense, aerospace, or government contracting industry. Strong knowledge of federal labor laws, Equal Employment Opportunity (EEO), Office of Federal Contract Compliance Programs (OFCCP), and security clearance processes. Experience with HRIS and ATS platforms (e.g., Deltek, Unanet, ADP, Workday). Demonstrated office administration experience, including scheduling, vendor management, and executive support. Excellent organizational skills with strong attention to detail. Strong communication and interpersonal skills with the ability to engage employees across all levels. Ability to balance multiple priorities while maintaining efficiency and accuracy. Bachelor's degree in Human Resources, Business Administration, or related field (or equivalent work experience). Active Secret Clearance preferred or ability to obtain. DESIRED EXPERIENCE:

Professional HR certification (PHR, SHRM-CP, or equivalent). Previous experience working in a government contracting, defense consulting, or national security-focused organization. Prior active security clearance. Experience managing hybrid/remote office environments and supporting distributed teams.