Job description
Harbor IT is a leading Managed Service Provider (MSP) specializing in delivering cutting edge Cybersecurity, IT, and Cloud Services to a diverse portfolio of clients. We pride ourselves on our commitment to excellence, innovation, and customer satisfaction. Harbor IT is backed by investment firm Worklyn Partners since 2022 and has built a national platform through acquisition and rapid organic growth. Our mission is to manage our clients’ technology and mitigate their cyber risks, so that they don’t have to.
Position Overview:
The Invoicing Specialist is responsible for accurate and timely customer invoicing related to managed service agreements, recurring contracts, and service ticket activity. This role works primarily in ConnectWise and NetSuite, ensuring all billable services are properly captured, invoiced, and aligned with customer terms. The ideal candidate is highly detail-oriented, process-driven, and experienced in a high-volume MSP billing environment.
Key Responsibilities:
Agreement & Recurring Billing
Generate and process monthly recurring invoices for managed service agreements in ConnectWise
Ensure billing aligns with contract terms, pricing schedules, and service bundles
Maintain accurate agreement billing setups, including additions, removals, and renewals
Service Ticket Invoicing
Review service tickets for completeness, accuracy, and billable status
Invoice time, materials, and project-related services based on approved ticket activity
Partner with service delivery teams to resolve billing discrepancies or missing documentation
System & Invoice Management
Sync invoicing activity between ConnectWise and NetSuite to ensure proper financial posting
Maintain clean billing data and ensure invoices are coded correctly to customers and services
Support invoice delivery workflows and respond to customer billing inquiries
Sales Order & Project Billing
Take point on the transition from Sales to Operations by creating Sales Orders and structural Billing Agreements.
Execute monthly billing for all active projects, managing the complexities of both Fixed Fee milestones and Time & Materials (T&M) projects.
Generate and process all sales orders & project invoices daily.
Credit Memo Processing
Credit Requests: Working with CSM & approvers to identify & process credits
Identify Route Cause: fix any underlying cause, if applicable, in customer agreements
Credit Memo Reporting: Maintain the credit memo database & produce monthly report
Process Improvement & Controls
Assist in improving invoicing accuracy, cycle times, and standard billing procedures
Support month-end close activities related to invoicing and deferred revenue
Ensure compliance with internal controls and documentation standards
Skills & Competencies
·High-volume invoicing accuracy
Strong organizational and communication skills
Comfortable working cross-functionally with operations and finance
Proficiency in Excel and billing analytics
Qualifications:
Technical Skills
2+ years of hands-on invoicing or billing experience, preferably in a service company environment
Experience working with accounting or billing software Connectwise
Familiarity with MSP or recurring revenue billing environments preferred
Basic understanding of accounting principles and revenue recognition
Account reconciliation experience a plus
Microsoft Office proficiency — Excel, Word, Teams
Associate's or Bachelor's degree in Accounting, Finance, or a related field preferred (or equivalent experience)
Additional Skills:
Strong attention to detail and numerical accuracy
Ability to follow and consistently adhere to documented SOPs
Meets deadlines, especially during month-end close
Strong verbal and written communication skills
Customer-first mindset when handling billing inquiries
Ability to manage multiple tasks simultaneously and prioritize effectively
Ability to work both independently and collaboratively within a team
Benefits:
·Competitive salary
·Comprehensive health benefits
·Unlimited paid time off
Opportunities for professional growth and development
Collaborative and supportive team environment
Originally posted on Himalayas
Who can apply
Eligible countries: United States. Accepted UTC offsets: UTC-10, UTC-9, UTC-8, UTC-7, UTC-6, UTC-5, UTC+14. Review the full description for employer-specific work authorization, residency and schedule requirements.