Staff Accountant

OPEN Healthcare US (OHUS) is an advanced laboratory committed to enhancing the quality of life for our patients. Our laboratory is equipped with state-of-the-art technology, aiming to deliver sustained quality of services. At OHUS, we provide high-quality, reliable, and affordable laboratory and diagnostic services, ensuring accurate and rapid test results. Our extensive test menu is designed to meet your health and wellness needs.

OHUS specializes in esoteric clinical tests including allergy, molecular testing, and other custom assays with mass spectrometry. Learn more aboutOHUS at

We are seeking a detail-oriented and motivated Staff Accountant to support daily accounting operations, assist with the month-end close process, and maintain accurate financial records in accordance with U.S. GAAP. This role provides an excellent opportunity for an early-career accounting professional to grow within a fast-paced, mission-driven healthcare organization.

• Prepare and post accurate journal entries, including month-end accruals, prepaids, reclasses, and fixed asset transactions.
• Reconcile general ledger accounts, including daily bank reconciliations, and investigate variances as needed.
• Manage accounts payable: process vendor invoices, ensure appropriate coding, and support timely payment execution.
• Support accounts receivable functions, including invoicing, cash application, and collections follow-up.
• Perform monthly P&L and balance sheet flux analysis and provide clear, insightful commentary.
• Assist with the preparation of financial reports, internal schedules, and documentation required for audits and tax filings.
• Support quarterly reviews and the annual external audit with timely and complete deliverables.
• Collaborate cross-functionally to understand business drivers and ensure financial accuracy.
• Assist with ad hoc analysis, process improvement initiatives, and other special projects as assigned.
• Help identify and implement improvements in internal processes, systems, and reporting workflows.

• Bachelor's degree in Accounting, Finance, or a related field study or equivalent work experience
• 0–2 years of relevant accounting experience (internship experience accepted).
• Strong attention to detail with excellent organizational and analytical skills.
• Basic understanding of U.S. GAAP and accounting controls.
• Proficiency in Microsoft Excel (VLOOKUP, pivot tables, formulas).
• Experience with accounting software (e.g., Quick Books, Net Suite, or similar) preferred.
• Clear verbal and written communication skills.
• Ability to prioritize tasks and meet deadlines in a dynamic, high-growth environment.
• Ability to adapt to a fast-paced and evolving work environment
• Must be able to work on-site in our Gardena laboratory/office.

• N/A

• Planning to pursue CPA certification
• Prior industry experience in healthcare or related sector a plus.
• Knowledge of U.S. GAAP and internal control best practices.
• Strong analytical and problem-solving abilities; able to interpret and communicate financial data clearly.
• Effective communicator with the ability to work independently and cross-functionally.
• High level of accountability, organization, and attention to detail in a fast-paced environment.

• 9:00 AM to 5:30 PM from Monday to Friday

• Health, Vision, Dental, and Life Insurance.
• 401(k) retirement savings plan with up to 4% matching
• Paid vacation and sick time-off
• Paid holidays
• Flexible spending account
• Discounts offered by ADP

OPEN Healthcare US offers a competitive salary and benefits package. The reasonable estimated salary for this role ranges from $60,000 to $69,000 per year. Actual compensation is based upon factors such as the candidate's education, skills, qualifications, related work experience, and etc.

OPEN Healthcare US is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. OPEN Healthcare prohibits discrimination on any basis protected under federal, state, or local law, regulation, or ordinance or company policies. All employment decisions are based on individual qualifications and business need.

Check out our website to learn more about our company at  Pursuant to the California Consumer Privacy Act, please review the notice available on our website, (Use the "Apply for this Job" box below). to understand our online and offline practices regarding the collection, use, and disclosure of “personal information” of job applicants who reside in California.

The position responsibilities outlined above are intended to define the general contents and requirements to perform this job. It is not to be taken as a complete statement of responsibilities or requirements. This job description does not restrict the Company’s right to assign or reassign duties and responsibilities to this job as needed.