Sr Manager, Accounts Payable - Accounting

Relativity Space; Long Beach (CA); On-site; USD 138,000 - 208,000; Full time

Benefits offered by this job

Equity

PTO & sick leave

Parental leave

Learning stipend

Job summary

Relativity Space in Long Beach, CA, seeks an experienced Accounting Operations leader to manage daily AP and accounting functions, ensuring accurate invoicing, timely payments, and aging analysis.

You will oversee month-end and year-end close, reconciliations, and audits, while partnering with GL, Data, Procurement, HR, and Engineering on cross-functional initiatives.

Relativity Space offers equity, generous PTO, parental leave, a learning stipend, and a collaborative, fast-paced environment.

Qualifications

• Bachelor's degree or higher in accounting or finance.
• 8+ years accounting operations experience in a fast-paced environment, including 3+ in a supervisory role.
• Strong understanding of P2P, 2- and 3-way matching, credit strategy, and vendor management.
• Experience with statement reconciliations, process implementation, and scaling systems.
• Proficiency with ERP systems and MS Office suite.

Responsibilities

• Manage daily Accounts Payable & Accounting Operations: ensure accurate invoice entry, weekly payments, aging reporting, and vendor management.
• Oversee Month-end and Year-end activities: reconciliations, tax filings, 1099 reporting, and audit support.
• Support cross-functional initiatives with GL & Data teams, Procurement, HR, and Engineering on ad-hoc projects.
• Manage vendor communications and relationships with timely inquiries and resolution of disputes.
• Lead strategic growth by implementing process improvements, training, metrics, and automation.

Skills

Accounting operations

AP & AR management

Vendor management

Month-end close

Cross-functional collaboration

Education

Bachelor's degree or higher in accounting/finance

Tools

Infor LN ERP

Microsoft Excel

Job description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you’re not just executing tasks; you’re solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team:

The Accounting team at Relativity spans tax and compliance, financial operations, general ledger, and business data strategy. While each group brings unique insights, they are united by a shared goal of protecting the financial integrity of Relativity, while also enabling smarter, faster decisions to help the company scale. You’ll collaborate deeply with teams across the business, ask the right questions, and become a trusted partner, not just a processor. With a focus on enabling growth, you’ll bring both structure and creativity to a highly dynamic environment.

About the Role:

• Manage daily Accounts Payable & Accounting Operations Functions: Ensure execution of all recurring Accounts Payable functions, including accurate invoice entry, weekly payment disbursements, and aging reporting and analysis. Oversee AR and Credit operations to allow for proper vendor management, customer invoicing, supplier onboarding, and general strategy
• Oversee and Execute Month-end and Year-end Activities: Review and approve monthly account reconciliations and vendor statement reconciliations, account flux analysis, monthly and quarterly sales & use tax filings, 1099 reporting, and annual financial audit support
• Support Cross-Functional Initiatives Partner with our General Ledger & Data teams, as well as various internal stakeholders (Procurement, HR, Engineering), to execute on recurring cross-functional tasks as well as supporting the Director, Accounting Operations in ad-hoc projects
• Manage Vendor Communications and Relationships Maintain strong vendor relationships through timely responses to inquiries, resolution of payment and account disputes, and collaboration with Procurement teams to proactively anticipate resolution of issues
• Drive Strategic Growth and Continuous Improvement Responsible for leading the strategic vision and growth of the Accounting Operations team by implementing and maintaining process improvements, training materials & performance metrics, and leveraging automations and best practices to optimize team performance

About You:

• Bachelor's Degree or higher, preferably in accounting or finance-related fields
• 8+ years of accounting operations experience in a fast-paced and high-volume environment, including 3+ in a supervisory role
• Strong understanding of end-to-end procurement (P2P) process, 2 & 3-way matching, credit strategy & vendor management, and Accounts Receivable
• Experience with statement reconciliations, process implementation & documentation, scaling existing systems and processes
• Proficiency with ERP systems, Microsoft Office Suite, and other invoicing or vendor management tools
• Acute attention to detail, ability to prioritize effectively, and reliability to execute on both technical and strategic tasks

Nice to haves but not required:

• Certified Public Accountant (CPA), active or inactive, or advanced degree
• Fast-growing start-ups and/or manufacturing industry experience – space manufacturing even better!
• Infor LN ERP specific experience
• Experience in building scalable processes and systems in a hypergrowth and fast-paced environment

Compensation and Benefits:

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range: $138,000—$208,000 USD

Equal Opportunity Employer:

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at [e-mail].