Senior Staff Accountant

ION Storage Systems; Beltsville (MD); Remote; USD 90,000 - 109,000; Full time

Benefits offered by this job

Medical Insurance

Stock options

Floating holidays

17 days of PTO to start

401(k) with 4% match

Wellness allowance $1000

Job summary

Ion Storage Systems is seeking a Senior Staff Accountant in Beltsville, MD to own day-to-day close activities including reconciliations, schedules, AP/AR, payroll and labor data preparation. The role emphasizes strong accuracy, process improvements, and cross-team collaboration in a fast-paced environment.

The successful candidate will manage recurring close deliverables from prep through review, maintain supporting documentation for audits, and work closely with supervision and other

Qualifications

• 3–5 years of progressive accounting experience, including general ledger, month-end close, and account reconciliations.
• Bachelor's degree in accounting or a related field.
• Working knowledge of GAAP and hands-on experience with an ERP or accounting system
• Advanced Excel skills, including lookup functions and pivot tables.
• Strong attention to detail and the ability to deliver accurate work with minimal rework.
• Ability to communicate clearly and effectively with colleagues across departments.

Responsibilities

• Prepare bank and credit card reconciliations and follow up on supporting receipts.
• Maintain the fixed asset schedule and record depreciation
• Maintain the prepaid schedule and record recurring entries.
• Reconcile accrued liabilities and deferred grant balances.
• Prepare debt interest and amortization schedules for manager review.
• Prepare reimbursement reports and the related journal entries.
• Record vendor bills from the AP inbox
• Prepare AP payment runs for approval, reconcile vendor statements, prepare AP aging, and gather year-end 1099 information.
• Record customer invoices, prepare the AR reconciliation, follow up with supply chain on shipping support, and monitor the AR inbox for customer inquiries.
• Pull timekeeping reports, prepare the PTO worksheet and payroll journal entries, and prepare labor distribution data and hourly cost files, including following up on outstanding hours and approvals.
• Gather and organize support for external audit and government compliance requests.
• Verify vendor bank detail changes, update vendor records, maintain vendor change log for manager review
• Follow internal controls, including segregation of duties over vendor setup, bank changes, and payment release.
• Document procedures, support ERP system implementation work such as testing and data validation, and help improve processes.
• Answer accounting questions from other departments.

Skills

GAAP knowledge

Advanced Excel

Attention to detail

Clear communication

ERP/Accounting system experience

Education

Bachelor's degree in accounting

Tools

ERP system

NetSuite (preferred)

Job description

Description

ION is seeking a Senior Staff Accountant to join our Finance and Accounting team in Beltsville, MD. This is a hands-on role for an accountant who can carry day-to-day close activities with little rework, including reconciliations, schedules, accounts payable and receivable, and payroll and labor data preparation.

ION is seeking a Senior Staff Accountant to join our Finance and Accounting team in Beltsville, MD. This is a hands-on role for an accountant who can carry day-to-day close activities with little rework, including reconciliations, schedules, accounts payable and receivable, and payroll and labor data preparation. The successful candidate will own recurring close deliverables from preparation through review, keep supporting documentation organized for audit, and help document and improve processes as our finance systems evolve. You will work closely with your supervisor, who reviews your work, and with teams across the company. The ideal candidate is detail-oriented, comfortable working independently in a fast-paced environment, and an active and open communicator.

Key Responsibilities

• Prepare bank and credit card reconciliations and follow up on supporting receipts.
• Maintain the fixed asset schedule and record depreciation
• Maintain the prepaid schedule and record recurring entries.
• Reconcile accrued liabilities and deferred grant balances.
• Prepare debt interest and amortization schedules for manager review.
• Prepare reimbursement reports and the related journal entries.
• Record vendor bills from the AP inbox
• Prepare AP payment runs for approval, reconcile vendor statements, prepare AP aging, and gather year-end 1099 information.
• Record customer invoices, prepare the AR reconciliation, follow up with supply chain on shipping support, and monitor the AR inbox for customer inquiries.
• Pull timekeeping reports, prepare the PTO worksheet and payroll journal entries, and prepare labor distribution data and hourly cost files, including following up on outstanding hours and approvals.
• Gather and organize support for external audit and government compliance requests.
• Verify vendor bank detail changes, update vendor records, maintain vendor change log for manager review
• Follow internal controls, including segregation of duties over vendor setup, bank changes, and payment release.
• Document procedures, support ERP system implementation work such as testing and data validation, and help improve processes.
• Answer accounting questions from other departments.

Required Qualifications

• 3–5 years of progressive accounting experience, including general ledger, month-end close, and account reconciliations.
• Bachelor's degree in accounting or a related field.
• Working knowledge of GAAP and hands-on experience with an ERP or accounting system
• Advanced Excel skills, including lookup functions and pivot tables.
• Strong attention to detail and the ability to deliver accurate work with minimal rework.
• Ability to communicate clearly and effectively with colleagues across departments.

Desired Qualifications/Skills

• NetSuite experience strongly preferred
• Experience in a manufacturing, government-contract, or fast-paced emerging company environment.
• Familiarity with DCAA or federal grant accounting.

Benefits

In addition to a competitive salary and equity, we offer the following company benefits:

• Medical, dental, vision, disability, and life insurance
• Stock options in an early-stage company
• Company and floating holidays
• 17 days of PTO to start, with increase upon tenure
• 401(k) plan with a 4% company match beginning after first paycheckWellness allowance of $1,000 annually

Department: Finance and Accounting

Salary Range: $90,252 – $108,922

Location: Beltsville, MD (Remote)

Reports to: Nicole Taake

Company Description

ION Storage Systems is commercializing breakthrough solid-state lithium metal battery technology, based on discoveries made at the University of Maryland, that prioritizes performance, safety, and durability. Built on a scalable, modular, three-dimensional ceramic structure, ION's batteries take a sustainable approach to next-generation energy storage and are ready to meet the demands of an increasingly electrified world across defense and aerospace, consumer electronics, electrified transportation, and renewable energy storage. We are backed by leading venture capital firms including Alsop Louie Partners, Clear Creek Investments, VoLo Earth Ventures, and Toyota Ventures. We offer an inclusive environment with growth opportunities and encourage work/life balance, because we believe a thriving workspace leads to a thriving company. Our team is made up of driven, creative people who are passionate about their work, and we hope you'll reach out to learn more and join our diverse, collaborative team.