Senior Accounts Payable | Automation & Vendor Relations

MITRE; Tampa (FL); On-site; USD 88,000 - 133,000; Full time

Job summary

MITRE is seeking an Accounts Payable professional for an onsite role in the Tampa area. The position emphasizes detailed invoice audits, data analysis, vendor setup, and adherence to internal controls.

You will work with automation tools to improve efficiency and support leadership with actionable AP insights. Applicants should have at least 5 years of related experience with a Bachelor’s degree (or 3 years with a Master’s or a PhD).

Qualifications

• Typically requires a minimum of 5 years of related experience with a Bachelor’s degree; or 3 years and a Master’s degree; or a PhD with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience.
• 2+ years of experience in Accounts Payable or a similar finance operations role, including invoice processing, vendor maintenance, and payment execution.
• Proficiency with Accounts Payable systems and automation tools, with strong attention to detail and accuracy.
• Demonstrated ability to analyze AP data, identify discrepancies or trends, and provide clear, actionable insights or recommendations.
• Strong communication and customer service skills, with experience partnering cross-functionally and working directly with vendors to resolve invoice and payment issues.
• This position requires a minimum of 3 days per week on-site.

Responsibilities

• Perform detailed invoice audits to ensure accuracy, policy compliance, and proper approvals, leveraging existing automation tools rather than manual data entry.
• Analyze accounts payable data to identify trends, exceptions, and process improvement opportunities, providing actionable insights to leadership.
• Support vendor setup and maintenance, ensuring accurate master data, appropriate documentation, and adherence to onboarding controls.
• Monitor and process payments in accordance with terms, cash flow guidelines, and internal controls, resolving any issues quickly and professionally.
• Partner with internal departments and vendors to research and resolve discrepancies, aged items, and complex invoice or payment issues.
• Contribute to the design and refinement of automated workflows, control checks, and reporting dashboards within the AP technology stack.
• Help shape the team’s transition toward account management and high-touch customer service by building strong vendor and stakeholder relationships.
• Participate in continuous improvement and special projects, bringing an audit and analytics mindset to enhance both operational efficiency and customer experience.

Skills

Accounts Payable

Data Analysis

Communication

Cross-functional Collaboration

Vendor Management

Attention to Detail

Education

Bachelor’s degree

Master’s degree

PhD

Tools

ERP Platforms

Workflow Tools

Invoice Automation

Job description

MITRE is seeking an Accounts Payable professional for an onsite role in the Tampa area. The position emphasizes detailed invoice audits, data analysis, vendor setup, and adherence to internal controls.

You will work with automation tools to improve efficiency and support leadership with actionable AP insights. Applicants should have at least 5 years of related experience with a Bachelor’s degree (or 3 years with a Master’s or a PhD).