Accounting Assistant, Part-Time

Trilon Group

Part-time Accounting Assistant supporting Alta, a sustainable community planning and design company. Reconciling employee expenses and outstanding invoices while preparing AR reports and resolving discrepancies.

Posted 8/11/2026part-timePortland • Oregon • 🇺🇸 United StatesMid-LevelSenior💰 $24 per hourWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in reconciling financial transactions and reviewing expense reports while maintaining organized documentation for audit purposes. Proficient in Microsoft Excel and experienced with ERP systems to manage accounts receivable and resolve billing issues effectively.

Highest-signal resume keywords

Expense Report ReconciliationMicrosoft Excel ProficiencyAccounts Receivable ExperienceERP Software ExperienceAttention to Detail

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Financial Transaction ReconciliationExpense Report ReviewAging Report PreparationData SortingData FilteringFormulasPivot Tables

Soft Skills

Strong Problem-Solving SkillsExcellent Written CommunicationExcellent Verbal CommunicationOrganizational SkillsCustomer Service Mindset

Tools & Technologies

Deltek VantagepointOracleSAP

Industry Keywords

AccountingBookkeepingAccounts ReceivableExpense ComplianceAudit Documentation

Tech Stack

Tools & technologies

ERPOracle

About the role

Key responsibilities & impact

Review and reconcile employee expense reports for accuracy and compliance with company policies
Verify receipts, coding, approvals, and supporting documentation
Identify discrepancies and work with employees to resolve outstanding issues
Assist with month-end reconciliation of expense-related accounts
Maintain organized documentation and records for audit purposes
Monitor and reconcile outstanding customer invoices
Contact clients regarding past-due invoices through email and phone
Research payment discrepancies and resolve billing issues with project managers and accounting staff
Prepare aging reports and assist with AR follow-up activities
Perform other related tasks

Requirements

What you’ll need

High school diploma or equivalent required
1–3 years of accounting, bookkeeping, or accounts receivable experience preferred
Experience reconciling financial transactions and reviewing expense reports
Microsoft Excel proficiency, including sorting, filtering, formulas, and pivot tables
Experience with accounting or ERP software preferred
Strong attention to detail and organizational skills
Excellent written and verbal communication skills
Ability to handle confidential information with discretion
Ability to work independently and manage multiple priorities
Experience with ERP systems such as Deltek Vantagepoint, Oracle, SAP, or similar preferred
Strong problem-solving and analytical skills
Customer service mindset when communicating with employees and clients

Benefits

Comp & perks

$24.00 per hour compensation
Part-time schedule of approximately 20–24 hours per week