Accounts Payable Lead — Scale & Streamline Ops (Onsite)

Speedrun Talent Network; El Segundo (CA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Stock options

Comprehensive health benefits

One Medical membership

Vision plan

Dental plan

Flexible PTO

CA parental leave

Education program

Job summary

Radiant, based in El Segundo, CA, seeks an AP Manager to own end-to-end accounts payable across QuickBooks, ION, and Ramp. You’ll process 800–1,300 invoices monthly, implement scalable controls, and partner with Supply Chain and Finance on cash strategy and ERP readiness.

This hands-on role requires a builder mindset, attention to detail, and the ability to scale AP processes in a fast-growth environment focused on nuclear technology for critical infrastructure.

Qualifications

• 5+ years in accounts payable, including 2+ years in a senior/lead AP role
• Experience processing 500+ invoices per month in a fast-paced environment
• Proficiency with AP automation tools and ERP systems
• Strong understanding of three-way match, GL coding, and month-end close procedures
• Experience with 1099 reporting, sales/use tax compliance, and audit support
• Track record of building or improving AP processes and controls
• Excellent attention to detail and ability to manage competing priorities
• Strong communication skills for vendor management and cross-functional collaboration

Responsibilities

• Process 800-1,300+ invoices monthly across multiple systems
• Review, code, and approve invoices ensuring proper GL account assignment, project codes, and class accounting
• Perform manual three-way matching across disconnected systems until ERP implementation
• Handle employee and candidate reimbursements, corporate card reconciliations, and ad-hoc payment requests
• Manage vendor setup, W-9 collection, and vendor master data maintenance
• Execute payment runs to capture early payment discounts and avoid late penalties
• Serve as primary point of contact for 150+ active vendors; resolve inquiries, disputes, and statement reconciliations
• Coordinate with Procurement on vendor onboarding, contracts, and payment terms
• Monitor aging reports and resolve payment holds or exceptions
• Build scalable AP infrastructure with automations where possible
• Design and document AP policies, procedures, and workflows for a scaling organization
• Implement approval matrices, segregation of duties, and fraud prevention controls
• Build audit-ready documentation and support external audits
• Maximize functionality of existing tools: Ramp Pro automation, ION workflows, QuickBooks coding rules
• Document current-state processes and pain points to inform 2026 ERP requirements
• Lead AP workstream for ERP selection, implementation, and data migration
• Maintain 1099 vendor tracking and support sales/use tax compliance and annual filings
• Partner with Supply Chain and Receiving on purchase order workflows and vendor management
• Train employees on policies, Ramp usage, and invoice submission requirements

Skills

Accounts payable

High-volume AP

Three-way match

ERP systems

AP automation tools

Vendor management

Internal controls

Tools

QuickBooks

ION

Ramp

Job description

Radiant, based in El Segundo, CA, seeks an AP Manager to own end-to-end accounts payable across QuickBooks, ION, and Ramp. You’ll process 800–1,300 invoices monthly, implement scalable controls, and partner with Supply Chain and Finance on cash strategy and ERP readiness.

This hands-on role requires a builder mindset, attention to detail, and the ability to scale AP processes in a fast-growth environment focused on nuclear technology for critical infrastructure.