Accounts Receivable Clerk

Hadrian - Manufacturing the Future

Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts.

We recently raised $260 million dollar Series C to accelerate this mission. We are excited to be launching a new Factory in Mesa, Arizona, a 270,000 square foot facility that will create 350 new jobs immediately. We are opening a new headquarters to support thousands of future hires, launching Hadrian Maritime to serve naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts.

Hadrian works with startups, Tier 1 and Tier 2 suppliers, and major defense contractors across space, shipbuilding, and aviation to scale production, reduce costs, and accelerate delivery on mission-critical programs. We are backed by leading investors including Lux Capital, Founders Fund, and Andreessen Horowitz. Our fast-growing team is united by a shared mission to reindustrialize American manufacturing for the 21st century and beyond!

Overview

We are seeking a detail-oriented and reliable Accounts Receivable Clerk to join our Finance team. The AR Clerk will be responsible for managing incoming payments, maintaining accurate financial records, and supporting the overall billing and collections process. This role plays a key part in ensuring our organization maintains strong cash flow, accurate accounting, and positive relationships with our customers and partners.

Key Responsibilities

• Process and post customer payments (checks, ACH, credit cards, and wire transfers) accurately and in a timely manner.

• Generate and send invoices to clients, ensuring accuracy in billing details and alignment with contracts or purchase orders.

• Upload invoices accurately to client portals and perform weekly reconciliations to ensure all invoices are properly submitted and accounted for

• Monitor accounts to identify outstanding balances and follow up on overdue payments.

• Reconcile accounts receivable transactions and maintain up-to-date aging reports.

• Research and resolve payment discrepancies or short payments.

• Communicate with customers regarding billing inquiries, payment status, and discrepancies.

• Collaborate with the Sales, Operations, and Accounting teams to ensure proper revenue recognition and accurate posting.

• Assist with monthly closing by providing accounts receivable reports, reconciliations, and supporting documentation.

• Maintain organized financial records and documentation in compliance with company policies and accounting standards.

• Support audits and other financial reporting requirements as needed.

Qualifications

• Education: Associate’s degree in Accounting, Finance, or related field (Bachelor’s preferred).

• Experience: 3–5 years of experience in accounts receivable, billing, or general accounting.

• Strong understanding of accounting principles (GAAP knowledge a plus).

• Proficiency with accounting software (e.g., NetSuite, QuickBooks, or similar ERP systems) and Microsoft Excel.

• Excellent attention to detail and accuracy in data entry.

• Strong communication and customer service skills.

• Ability to work independently, manage priorities, and meet deadlines.

Preferred Skills

• Experience with enterprise accounting systems (e.g., NetSuite, SAP, or Oracle).

• Knowledge of AR automation tools or integrations (e.g., Ramp, Bill.com ).

• Familiarity with collections best practices and cash application processes.

Compensation

For this role, the target salary range is $26 - $35/hr (actual range may vary based on experience).

This is the lowest to highest salary we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee's pay position within the salary range will be based on several factors, including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs.

Benefits

• 100% coverage of medical, dental, vision, and life insurance plans for employees

• 401k

• Relocation stipend if you’re moving from outside of LA

• Flexible vacation policy

ITAR Requirements

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here .

Hadrian Is An Equal Opportunity Employer

It is the Company’s policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions