Staff Accountant

?? Join the Fight Against Cancer While Advancing Your Accounting Career!Staff Accountant | Hybrid | South Lake Union, WA | Temp-to-Hire

Are you an experienced accounting professional who thrives in a mission-driven environment? Join a leading non-profit organization dedicated to conquering cancer and play a vital role in supporting life-changing research and clinical trials. This is an excellent opportunity for a detail-oriented Staff Accountant looking to make an impact while enjoying a collaborative team culture, hybrid flexibility, and long-term career potential.

About the Opportunity

A respected non-profit organization in South Lake Union is seeking a Staff Accountant on a temporary-to-hire basis. In this highly visible role, you will oversee payroll operations, accounts payable activities, financial reporting, compliance initiatives, and audit support.

This position operates on a hybrid schedule following an initial on-site training period, with in-office attendance required Tuesday through Thursday.

Schedule: Monday-Friday, 8:00 AM - 4:30 PM

What You'll DoPayroll Administration

• Process accurate and timely semi-monthly payroll

• Maintain payroll records and ensure compliance with federal, state, and organizational requirements

• Serve as payroll system administrator and primary liaison with external payroll providers

• Allocate payroll and benefits across multiple funding sources and prepare related journal entries

• Reconcile payroll activity within the accounting system (MIP)

• Generate payroll reports for Accounting and HR teams

• Manage payroll calendars, direct deposit setup, tax filings, and deductions

• Research and stay current on payroll regulations and compliance requirements

• Respond to employee payroll questions and resolve discrepancies

Accounts Payable & Financial Operations

• Process vendor invoices and employee reimbursement requests

• Review, code, and verify all A/P transactions

• Execute check runs and submit positive pay reports

• Reconcile A/P aging schedules and general ledger balances

• Maintain vendor records and compliance with W-9, W-8, 1099, and 1042-S requirements

• Process travel and corporate credit card reimbursements

• Resolve vendor inquiries and payment discrepancies

• Track and record applicable use tax obligations

• Maintain documentation, filing systems, and cash receipt records

Reporting, Compliance & Audit Support

• Prepare monthly, quarterly, and year-end financial reports

• Assist with financial statement, retirement plan, and single audits

• Document accounting procedures and internal controls

• Ensure compliance with organizational policies and regulatory standards

• Monitor education benefit utilization and maintain supporting records

• Process deposits and maintain cash receipt logs

What We're Looking ForRequired Qualifications

? 4-6 years of Staff Accountant experience in a corporate environment

? Experience with the MIP Accounting System

? Strong understanding of payroll administration, regulations, and compliance requirements

? Advanced proficiency in Microsoft Excel, Word, and Access

? Strong attention to detail and reconciliation experience

Preferred Qualifications

• Non-profit accounting experience

• General ledger and journal entry experience

• Project accounting knowledge

• Accounts payable and accounts receivable experience

• Month-end close and reporting experience

• Working knowledge of AP Aging, W-9, W-8, 1099, and 1042-S requirements

Why You'll Love This Opportunity

?? Support an organization making a real difference in cancer research

?? Hybrid work schedule with work-life balance

?? Collaborative and mission-focused culture

?? Opportunity to transition into a permanent role

?? Comprehensive benefits upon permanent hire, including:

• Medical, dental, vision, life, and disability insurance

• Paid holidays and generous PTO

• Retirement plan contributions

• Continuing education reimbursement

• Professional growth opportunities

Ready to put your accounting expertise to work for a meaningful cause? Apply today and become part of a team helping advance the fight against cancer. ??

Job Type & Location

This is a Contract to Hire position based out of Seattle, WA.

Pay and Benefits

The pay range for this position is $34.00 - $36.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: - Medical, dental & vision - Critical Illness, Accident, and Hospital - 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available - Life Insurance (Voluntary Life & AD&D for the employee and dependents) - Short and long-term disability - Health Spending Account (HSA) - Transportation benefits - Employee Assistance Program - Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Seattle,WA.

Application Deadline

This position is anticipated to close on Aug 25, 2026.

About Aston Carter

Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® Platinum Award winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email View email address on click.appcast.io (%View email address on click.appcast.io) for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.