Senior Associate, S2P Invoicing Operations

Rig Up is the source-to-pay solution built for energy. By combining purpose-built software with expert teams, we empower the world's leading energy companies and their suppliers to work better, together.

Learn more about how Rig Up is equipping everyone in the energy ecosystem to operate with greater speed and efficiency at

Rig Up is hiring a Senior Associate, S2P Invoicing Operations to support the accuracy, efficiency, and timeliness of our invoicing process for both vendors and clients. In this role, you'll help keep invoices moving from intake through submission, troubleshoot and resolve exceptions, and partner closely with vendors, clients, and internal teams to address questions and drive timely outcomes. The ideal candidate is highly organized, detail-oriented, and a strong communicator who thrives in a fast-paced, high-volume environment.

This exempt position reports to the Supply Chain Lead.

Why Join us? At Rig Up, you'll play an important role in ensuring seamless financial operations that support our clients' energy projects. You'll join a collaborative team, gain exposure to cross-functional work, and help drive improvements that make a measurable impact. If you enjoy problem-solving, building relationships, and delivering invoicing operational excellence, we'd love to have you with us.
What you'll be doing:

E2E S2P Invoicing Operations

• Serve as a primary owner of invoice management operations from vendor invoice reviews to client invoice submissions, ensuring accuracy and timely processing.
• Review and validate complex invoices to ensure compliance and accuracy.
• Act as the escalation point for invoice-related issues, including missing/incorrect invoice requirements, tax implications, and system constraints.
• Own the end-to-end resolution of stalled and disputed invoices, partnering with vendors, clients, and internal stakeholders to drive timely processing and closure.
• Guide cross-functional team members and vendors on best practices for invoice processing and navigating the Rig Up platform.
• Maintain documentation of updated processes and procedures.

Stakeholder Management & Communication

• Build relationships with internal teams such as S2P Operations, Accounts Payable, Accounting, and Product/Engineering to resolve complex invoicing issues.
• Serve as point of contact for escalated vendor and client inquiries.
• Provide regular updates to leadership on operational metrics and challenges.
• Build strong, collaborative relationships with colleagues across all levels of the organization to facilitate smooth operations and problem-solving.
• Share knowledge, best practices, and insights with internal teams to enhance overall organizational effectiveness and continuous improvement.
• Proactively identify opportunities for inter-departmental collaboration to streamline processes and achieve. shared objectives.
• Contribute insights to improve vendor and client experience.
• Participate in cross-functional meetings to represent S2P Invoicing Operations perspectives.

Experience and Education Requirements

• Bachelor's degree in Accounting, Finance, Business Administration, or equivalent experience.
• 2-3+ years of experience in invoicing, billing, collections, or accounts receivable, preferably in the energy industry.
• Hands-on experience with ERP systems (Net Suite or comparable) and collections software for tracking activity and communications.
• Understanding of purchase orders/work orders, cost codes, invoice reconciliation, and invoice reporting.
• Proficiency with third-party invoicing and Vendor Management Systems (VMS) such as Open Invoice, Ariba, GEP Smart, and/or Fieldglass.
• Strong analytical and problem-solving abilities with exceptional attention to detail.
• Proven ability to manage priorities and deadlines in a fast-paced, high-volume environment.
• Excellent written and verbal communication skills, capable of explaining financial information clearly to both technical and non-financial audiences.
• Demonstrated collaboration skills with Sales, Account Management, and cross-functional Financial Operations teams.
• Proven ability to process high volumes of invoices in a timely manner.
• Commitment to professional integrity, accuracy, and customer service.
• Experience with oil and gas industry clients (Upstream or Midstream), preferred but not required.
• Familiarity with Net Suite, Adobe Pro, Zendesk, Sigma, and other third party platforms preferred, but not required.
• Exposure to process automation or AI-supported data validation tools, preferred but not required.
• Client M&A integration or system migration experience, preferred but not required.

Essential Job Functions:

• Regular, on-time attendance.
• Ability to communicate effectively.
• Ability to use office equipment such as a computer, copier and telephone.
• Ability to use office computer programs such as e-mail, Google Docs, Microsoft Word, PowerPoint and Excel.
• Often remain in a stationary position; standing or sitting for prolonged periods.

More than a job:

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