A cyber security organization in Lancaster, PA seeks a Part Time Billing Specialist on a temporary basis. This part-time role is ideal for candidates experienced in government contract invoicing, time and expense review, and compliance-driven client billing. The workload is cyclical, requiring 3-5 focused days per month, typically aligned with the month-end billing period.

As organizational needs grow, this assignment offers the potential to transition into a permanent position with expanded hours.

Key Responsibilities

• Prepare, review, and submit monthly invoices using BigTime, Unanet, or a comparable GovCon billing system.
• Validate time entries, labor categories, and expense charges, and resolve discrepancies prior to invoicing.
• Ensure all invoices align with contract requirements, including T&M, Fixed Price, and Cost-Plus structures.
• Maintain billing schedules, funding trackers, and supporting documentation.
• Collaborate with internal finance staff during month-end close and revenue reconciliation.
• Assemble complete invoice backup documentation and maintain audit-ready records.
• Communicate promptly with internal teams and clients regarding invoice issues, adjustments, or clarifications.

Candidate Requirements

• Experience in GovCon billing or project-based billing environments.
• Proficiency with BigTime, Unanet, or equivalent government contract billing tools.
• Strong Excel skills with the ability to reconcile time and expense data accurately.
• Excellent attention to detail, organizational capabilities, and accuracy.
• Ability to work independently during critical billing periods.
• Onsite or hybrid availability preferred; strong remote candidates will be considered.

Work Arrangement

• Part-time: 3-5 days per month, concentrated during the billing cycle.
• Work hours: 9:00 AM - 5:00 PM on scheduled billing days.
• Onsite or hybrid preferred for collaboration; remote option available for highly qualified candidates.

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.