Sr. Accountant
El Segundo, CA
Operations /
Full Time (Salaried) /
On-site
We are looking for a proactive, detail-oriented Sr. Accountant to make a tangible impact in a dynamic, high-growth environment. You’ll play a critical role in driving process improvements, enhancing financial accuracy, and supporting Arbor’s operational efficiency.
This is an onsite role in El Segundo.
Arbor’s team of world-class engineers and scientists are developing a scalable, low-cost approach to Bioenergy with Carbon Capture and Storage (BECCS) based on modern rocket engine technology. BECCS is a carbon dioxide removal (CDR) approach that uses biomass to produce energy and remove CO₂ from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected. Our modular technology leverages the power density of supercritical CO2 to enable compact gasification, oxy-combustion, and high-pressure turbo-expansion to convert abundant waste biomass into clean electricity, water, and high-purity CO2, capturing and sequestering all emissions from the process. Our team brings together a passion for science, technology, and global stewardship to make low-cost, high-quality carbon removal and baseload power a reality.
Responsibilities
- Lead the month/quarter/year-end close processes, including preparing journal entries, reconciliations, and variance analysis.
- Analyze complex financial reports, maintain the general ledger, and prepare financial statements.
- Assist with audits, including documentation, preparing schedules, and liaising with auditors.
- Manage AP, AR and Fixed Asset accounting.
- File periodic tax returns (Sales and Use, Unsecured Property)
- Evaluate, document, and improve internal controls and accounting processes.
Requirements
- Bachelor’s degree in Accounting, Finance, or related field.
- 5+ years of professional accounting experience (public accounting/audit and/or corporate accounting) in a high-growth, fast-paced environment.
- Advanced proficiency in Microsoft Excel (VLOOKUP, pivot tables).
- Strong knowledge of US GAAP and financial reporting standards.
- Experience with ERP/accounting systems and financial reporting software.
- Exceptional analytical, organizational, and problem-solving skills with the ability to manage multiple deadlines effectively.
- Strong written and verbal communication skills with experience presenting to senior stakeholders.
Preferred Qualifications
- Master’s degree (MBA).
- Certified Public Accountant (CPA) certification.
- Payroll accounting experience.
- Experience with ERP integrations and accounting system automation.
- Experience working in hardware,renewable energy, deep-tech, and/or manufacturing environments.
Benefits
- Stock options
- Medical, dental, and vision insurance (Arbor covers 90% for employees)
- Basic life insurance fully covered
- Health savings account (HSA) with matching
- Flexible savings account (FSA)
- Unlimited PTO
- 12+ company holidays, including Earth Day!
- 401(k)
- Commuter benefits
- Annual learning and development stipend
- And more!
$90,000 - $110,000 a year
The salary is subject to the applicant’s skills, qualifications, and experience.
Arbor is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, religion, national origin, gender identity or expression, sexual orientation, age, marital or veteran status, disability, or any other protected characteristic under applicable law. Solving global energy challenges requires a wide range of perspectives and experiences, and we are committed to building a team that reflects the world we serve.
