Billing Specialist - Part Time Temporary

Job Description: At Penn E&R, we empower professionals to create lasting, positive impact through environmental remediation, civil engineering design, and regulatory guidance that protect ecosystems, restore land, and improve infrastructure. Whether you're cleaning up a former industrial site or designing a stormwater management system for a new development, your work here contributes to a safer, more sustainable world. Bring your creativity, resourcefulness, and drive to Penn E&R, where every day is an opportunity to learn, grow, and lead. Ready to take on what’s next?  Let’s make it happen together! Penn E&R is seeking a Billing Specialist - Part Time Temporary who would be expected to work 10-20 hours per week for approximately 6 months. While you will be based out of our Doylestown, PA office, we offer hybrid flexibility after training is complete. You will have the opportunity to perform a wide range of tasks across all of Penn E&R’s market sectors and be expected to perform office-based assignments. The Billing Specialist is responsible for supporting the organization’s revenue cycle by preparing accurate invoices, maintaining billing records, monitoring account activity, and resolving billing discrepancies in a timely manner. This role works closely with internal departments and external customers to ensure charges are processed correctly, payments are applied accurately, and outstanding issues are addressed professionally. The ideal candidate is highly detail-oriented, organized, and able to manage deadlines while maintaining a high standard of accuracy and customer service. Essential Duties and Responsibilities: Prepare, review, and issue customer invoices accurately and in accordance with company policies, contractual terms, and established billing schedules. Verify billing data by reviewing supporting documentation, pricing details, account information, and service or product records. Research, investigate, and resolve billing discrepancies, disputed charges, and invoice-related questions from customers or internal stakeholders. Maintain complete and accurate billing records, customer account details, and supporting documentation for audit and compliance purposes. Process billing adjustments, credit memos, rebills, and account updates as needed. Monitor account status, aging information, and payment activity to help identify overdue balances or irregularities. Collaborate with other Billing Admins and Project Managers to clarify billing information and improve billing accuracy. Support month-end and period-end close activities by preparing billing reports, reconciling data, and ensuring all transactions are properly recorded. Respond to customer inquiries regarding invoices, payment terms, balances, and account history in a professional and timely manner. Accounts Receivables & Collections Support – Assist/Collaborate with project managers on client communications for overdue invoices. Identify opportunities to improve billing workflows, internal controls, and process efficiency. Ensure compliance with internal procedures, confidentiality standards, and applicable billing-related regulations. Qualifications include: Associate's or bachelor’s degree in Accounting, Finance, Business Administration, or a related field preferred; equivalent work experience may be considered. 3+ years of experience in billing, accounts receivable, finance operations, or a similar administrative or accounting support role. Strong understanding of billing procedures, invoice processing, account reconciliation, and financial recordkeeping. Proficiency with Microsoft Excel and experience using accounting, ERP, or billing systems. Excellent attention to detail with the ability to identify errors, inconsistencies, and missing information. Strong written and verbal communication skills with a customer-service mindset. Ability to prioritize tasks, meet deadlines, and manage multiple assignments in a fast-paced environment. Ability to handle sensitive financial information with professionalism and confidentiality. Preferred Qualifications Experience/Proficiency using an Oracle based billing system. Experience working in a high-volume billing environment. Knowledge of collections processes, payment application, and account aging analysis. Experience with process improvement initiatives and documentation of standard operating procedures. Familiarity with industry-specific billing requirements, customer contract terms, and compliance standards. Core Competencies Accuracy and attention to detail Analytical and problem-solving ability Time management and organization Customer service and relationship management Collaboration and cross-functional communication Accountability and follow-through Adaptability and continuous improvement mindset Work Environment This position typically operates in a professional office or remote business environment and may require extended periods of computer work, data entry, and communication with internal teams and customers. The Billing Specialist must be able to work independently while also contributing effectively within a team setting. Position Summary This detailed job requisition is designed to attract a Billing Specialist who can support accurate invoicing, strengthen billing controls, improve account visibility, and contribute to a positive customer experience. The ideal candidate combines technical billing knowledge with strong communication skills and a commitment to operational excellence. Penn E&R, Inc. is an Equal Employment Opportunity employer. We adhere to a policy of making employment decisions without regards to race, color, religion, sex, age, disability or any other protected categories. It is our intention that all qualified applicants be given an equal opportunity and that selection decisions be based on job-related factors.