Particle Technology Labs
Particle Technology Labs is looking for a sharp, self-motivated Account Clerk & Office Assistant who takes ownership of their work and brings genuine critical thinking to every task. This role is built for someone who does not wait to be told what needs fixing — they spot it, think it through, and act. If you thrive on accuracy, move with purpose, and take pride in keeping operations running smoothly behind the scenes, we want to hear from you.
Key Responsibilities
Accounting Support
- Process customer invoices and payments with precision, catching errors before they become problems
- Proactively maintain and audit customer records, identifying gaps or outdated information and resolving them without prompting
- Reconcile accounts and scrutinize financial documents, applying sound judgment to flag inconsistencies and determine appropriate follow-up
- Respond to account inquiries with confidence and clarity, serving as a reliable resource for internal teams who depend on accurate financial data
- Anticipate routine accounting needs and stay ahead of deadlines rather than reacting to them
HR & Administrative Support
- Independently manage employee file organization and documentation uploads, ensuring records are complete, current, and compliant
- Coordinate candidate communications and phone screens with professionalism, keeping the hiring process moving without hand-holding
- Take initiative in posting job advertisements and maintaining applicant tracking records with minimal oversight
- Identify inefficiencies in administrative workflows and suggest or implement practical improvements
- Handle document preparation, scheduling, and general office support with a solutions-first mindset
Qualifications
- Associate's degree or higher in accounting, business, or a related field
- Experience in an accounting support or office operations role
- Proficiency in QuickBooks Online and Microsoft Office (Excel, Outlook, Teams)
- Demonstrated ability to work independently, prioritize effectively, and meet deadlines without close supervision
- Strong analytical and critical thinking skills — you connect the dots, not just complete the checklist
- Clear, professional communication and strong phone etiquette
- Proven integrity when handling sensitive financial and personnel information
- A proactive mindset: you look ahead, ask the right questions, and solve problems before they escalate
Job Type: Full-time
Pay: $46,000.00 - $48,000.00 per year
Benefits:
- 401(k)
- 401(k) matching
- Dental insurance
- Employee assistance program
- Flexible spending account
- Health insurance
- Health savings account
- Life insurance
- Paid time off
- Vision insurance
Application Question(s):
- Please confirm that you are okay with the salary listed in the job ad.
- Please feel free to describe any invoicing or HR support experience that you feel may be relevant to this position.
- This is an in-person position. Please confirm that this works for you.
Experience:
- General Office: 1 year (Preferred)
- Bookkeeping: 1 year (Preferred)
Ability to Commute:
- Downers Grove, IL 60515 (Required)
Work Location: In person
