CRYSTAL WILLIAMS
Summary
Trusted partner to executive teams and boards, leading finance transformation, ERP integrations, and cross-functional growth strategy in mission-driven and startup environments. Over a decade of experience in building and scaling financial infrastructure, aligning diverse teams, and embedding operational discipline to drive sustainable impact. Known for turning complexity into clarity and forging collaboration across Finance, Ops, and People teams to support equitable economic advancement and organizational health.
Overview
11
11
years of professional experience
Work History
AP/P2P Manager Consultant
Rootstock
11.2024 - 05.2025
- Brought in as finance transformation lead to architect scalable workflows during startup's critical growth phase. Reported directly to CFO and advised leadership on P2P optimization.
- Led a cross-functional initiative across Finance, People Ops, and Engineering to resolve a 6-month backlog and realign P2P workflows, cutting invoice cycle time from 15 days to 3 and capturing $150K in early-payment discounts.
- Owned the end-to-end design and implementation of scalable AP and P2P infrastructure, including approval matrix, vendor onboarding, invoice ticketing, and ERP migration (100 vendors / $5M spend), reducing manual work by 75%.
- Directed Lean process improvements that eliminated bottlenecks and freed 200+ staff hours annually.
- Acted as finance advisor to department leads, embedding fiscal discipline into operational decision-making.
AP Manager Consultant
Truepill
03.2024 - 08.2024
- Appointed to lead AP operations stabilization and financial controls enhancement amid rapid expansion.
- Led stabilization of AP operations during a rapid growth phase, aligning payment strategies with finance leadership to cut overdue balances by 60%.
- Directed month-end close improvements by aligning AP timelines with reporting deadlines, reducing reconciliation errors by 40%.
- Oversaw AP tech stack upgrade, improving invoice tracking accuracy and team productivity.
Independent Consultant
Williams Consulting
02.2023 - 03.2024
- Served as interim finance lead for multiple startups and nonprofits; developed scalable systems and coached leadership teams.
- Advised startup and nonprofit clients on financial operations, building workflows and compliance frameworks that improved audit readiness and reduced financial risk.
- Designed and led implementation of scalable P2P systems tailored to organizational goals, reducing invoice processing time by up to 50%.
- Acted as trusted advisor to founders and executive directors on strategic budgeting, cash flow forecasting, and regulatory compliance.
Global Financial Operations / AP Manager
Juul Labs Inc.
08.2022 - 02.2023
- Directed global AP operations across multiple markets; aligned systems to improve vendor satisfaction and financial transparency.
- Led cross-border AP workflows and process alignment to ensure consistency and compliance.
- Developed financial tracking models to improve budget visibility and enable proactive cost management.
Accounts Payable Supervisor
Juul Labs Inc.
08.2020 - 08.2021
- Managed team of 5 AP specialists and offshore partners; implemented controls and insights that shaped financial operations.
- Transformed AP operations, increasing processing efficiency by 30% and reducing errors through tighter controls.
- Conducted financial analysis that uncovered cost-saving opportunities, cutting discretionary spend by 5%.
Financial Operations / Accounting Consultant
Williams Consulting
03.2019 - 08.2020
- Directed accounting process redesigns for SME clients; enhanced fiscal transparency and control.
- Led internal audits and reporting redesigns to identify cost savings and improve financial operations.
- Built cash forecasting models and trained staff on tools for budget monitoring and expense management.
Senior Accounts Payable Accountant
Square, Inc. (Bloc)
08.2017 - 12.2018
- Project lead for AP automation and SOX compliance initiatives in collaboration with Procurement and Finance.
- Managed AP automation rollout, reducing processing time by 30% and increasing reporting transparency.
- Aligned invoice approval workflows with audit standards to improve compliance readiness.
Senior Accounts Payable Specialist
Yelp
03.2016 - 08.2017
- Oversaw AP operations and system upgrade implementation for improved efficiency and reporting.
- Managed end-to-end AP cycle and led invoice exception resolution to maintain vendor satisfaction.
- Collaborated cross-functionally on system improvements that enhanced financial reporting and controls.
Accounts Payable Specialist
Restoration Hardware
01.2015 - 03.2016
- Championed AP system upgrade, resulting in a 20% increase in processing speed.
- Worked with Purchasing and Finance to ensure clean month-end reconciliations.
Shared Services – Payroll Specialist
University of California, Berkeley
01.2014 - 12.2015
- Managed payroll for over 500 staff/faculty, implementing process changes that reduced processing errors by 15%.
- Led internal audits of timekeeping and payroll records to ensure compliance with state and federal standards.
Education
B.S. - Business Administration – Business Communications/Finance
California State University, Sacramento
Skills
- NetSuite
- QuickBooks
- Billcom
- Expensify
- Concur
- MS Excel (Advanced)
- Notion
- Zip
- Oracle Fusion
- Team leadership
- Strategic planning
- Operations management
- Project management
- Cross-functional teamwork
- Policy implementation
- Salesforce management
- Policy and procedure development
Websites
Leadership Highlights
- Built and led multi-functional teams across Finance, Ops, and HR to deliver scalable AP/P2P systems supporting $50M+ in growth.
- Partnered with executive teams to realign financial processes with strategic goals, cutting operating inefficiencies by up to 40%.
- Led financial operations through ERP migrations, AP automation, and Series A readiness at multiple high-growth startups.
- Trusted advisor to leadership, board committees, and founders on fiscal planning, compliance, and organizational health.
Timeline
AP/P2P Manager Consultant
Rootstock
11.2024 - 05.2025
AP Manager Consultant
Truepill
03.2024 - 08.2024
Independent Consultant
Williams Consulting
02.2023 - 03.2024
Global Financial Operations / AP Manager
Juul Labs Inc.
08.2022 - 02.2023
Accounts Payable Supervisor
Juul Labs Inc.
08.2020 - 08.2021
Financial Operations / Accounting Consultant
Williams Consulting
03.2019 - 08.2020
Senior Accounts Payable Accountant
Square, Inc. (Bloc)
08.2017 - 12.2018
Senior Accounts Payable Specialist
Yelp
03.2016 - 08.2017
Accounts Payable Specialist
Restoration Hardware
01.2015 - 03.2016
Shared Services – Payroll Specialist
University of California, Berkeley
01.2014 - 12.2015
B.S. - Business Administration – Business Communications/Finance
California State University, Sacramento
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