Vendor Master Data Specialist - Accounts Payable

Title: Vendor Master Data Specialist

Type: Contract To Hire

Location: Washington, D.C

Compensation:· $20–$30/hr

Benefits: This position is eligible for medical, dental, vision, 401k, and PTO

Schedule: Mon–Fri, 8AM–5PM 5 days on site

About the role

Join a large, dynamic organization as their next Vendor Master Data Specialist, a high-impact role where precision meets purpose! As the trusted steward of vendor master data and supplier onboarding, you'll be the backbone of accuracy, integrity, and compliance across two critical platforms within the Accounts Payable function. If you thrive on detail, love bringing order to complex data ecosystems, and want your work to directly power smarter, more reliable financial operations, this is your opportunity to make a real difference.

Key responsibilities

• Maintain vendor master data integrity in Workday, ensuring records meet standards for accuracy, consistency, and regulatory compliance
• Manage vendor onboarding and maintenance workflows within PaymentWorks, validating supplier-submitted data before approval and activation
• Administer vendor access through Workday Supplier Portals, enabling supplier self-service for invoice submission and status tracking

What we're looking for

• 3–5 years in Accounts Payable, Procurement, or vendor management
• Associate's or Bachelor's degree preferred; strong experience accepted in lieu
• Workday experience highly preferred; PaymentWorks or similar tool a plus
• Basic to intermediate Excel; comfortable with Outlook and varied IT tools
• Strong written and verbal communication skills
• Solutions-oriented, takes initiative, accountable, and a strong team player

Contract position · No remote work during contract period · Hybrid schedule available after conversion · Position is based in Washington, DC (accessible via Metro)

Why choose Addison Finance & Accounting?

• Benefits & Bonuses: You are eligible for medical, dental, vision insurance benefits, 401K, and monetary bonuses

• Permanent Employment: Many of Addison’s Finance & Accounting job openings lead to potential permanent employment

• Connections: You connect directly with hiring managers from renowned organizations

• Options: You are presented multiple employment options near your home

• Professional Development: You are provided hiring process advice, resume revision, and employment term negotiation

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. Reasonable accommodation is available for qualified individuals with disabilities, upon request.