Accounts Payable Specialist

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 analytical Accounts Payable Specialist to join our growing team. This role is focused on expense coding and requires strong critical thinking skills to properly classify and record non-PO invoices across multiple entities. The ideal candidate has experience in a large company environment, is comfortable working with complex general ledger structures, and can adapt to an evolving business with new entities and changing processes.

Key Responsibilities :

Review and process non-PO invoices, applying judgment to determine whether expenses should be coded as fixed assets (e.g., office equipment), prepaids (leases, subscriptions), or operating expenses (events, sponsorships, services).

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

Support the ongoing centralization of Accounts Payable processes within a dynamic environment involving multiple databases and ERPs, requiring extensive reconciliation and manual matching

Code invoices to the correct GL sub-accounts across multiple entities, cost centers, departments, and locations, using documentation as guidance while exercising critical thinking for exceptions.

Research, document, and resolve complex items such as intercompany chargebacks and expenses that don’t fit standard templates.

Maintain accurate vendor and expense records; take detailed notes on coding decisions and field definitions to support consistency and knowledge sharing.

Leverage OCR invoice technology to review prepopulated fields while ensuring manual accuracy and compliance.

Collaborate with team members to resolve open questions efficiently by compiling and addressing issues in batches with supervisors.

Assist in month-end close activities as needed, including reconciliations and reporting.

Qualifications :

3+ years of accounts payable experience; large company or multi-entity experience strongly preferred.

Strong understanding of expense coding, accruals, prepaids, and fixed assets.

Experience working primarily with non-PO invoices (beyond standard 2 / 3-way match processes).

Ability to navigate complex GL structures and apply critical thinking to new or unique transactions.

Excellent organizational skills with a habit of documenting processes and decisions clearly.

Strong Excel skills (VLOOKUP, PivotTables) required; Oracle and international AP (VAT, FX) experience a plus, but not required.

Comfortable working in a dynamic environment with evolving 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