Full-Time
Senior Corporate Accountant
Posted on 9/30/2025
Anthropic
5,001-10,000 employees
Develops reliable, interpretable AI systems
Compensation Overview
$160k - $190k/yr
H1B Sponsorship Available
San Francisco, CA, USA
Hybrid
Location-based hybrid policy: staff in office at least 25% of the time.
 Accounting (1) |
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- 7+ years of accounting experience, preferably in startup or high-growth environments with 2+ years of experience in a public company
- Bachelor’s degree in Accounting or Finance
- CPA or equivalent preferred
- Exhibit strong organizational and time-management abilities
- Possess a keen attention to detail and commitment to accuracy
- Self-starter able to work independently and meet deadlines
- Act as the primary preparer in month-end and quarter-end close calendar, checklist, and reconciliations.
- Prepare materials for monthly and quarterly flux presentations validating P&L and adding deep insight that connects to stories in the business
- Ensure and build proper accounting procedures, internal controls, and compliance with accounting policies and regulations, and ultimately ensure accuracy of financial statements and related reports
- Take ownership and accountability over accurate and timely financial reporting to stakeholders
- Support the preparation of financial statements, supporting schedules, and reports in compliance with US GAAP and relevant reporting standards
- Leverage AI and accounting tools to automate accounting processes where possible
- Support system implementations (ERP, lease accounting software, asset lifecycle management)
- Assist with and prepare technical accounting areas including ASC 842. Partner with Technical Accounting on technical memos and prepare and operate lease schedules
- Assist in preparing accounting policies as needed by leveraging technical accounting guidance and collaborating with cross-functional stakeholders to obtain relevant information in order to form a basis for conclusions
- Collaborate with external auditors, prepare audit schedules, and ensure on-time completion of such timelines
- Experience working in a fast-paced startup environment
- Ability to meet deadlines without sacrificing the quality of work product
- Be comfortable with handling ambiguity and working with minimal supervision
- Take the initiative to apply knowledge of processes and systems and recommend well-considered improvements
- Exhibit knowledge of how to implement a change and good instinct in predicting its effects, and knowledge of how to 'get it right' the first time
Anthropic focuses on AI research to build reliable, interpretable, and steerable AI systems. Its main product, Claude, is an AI assistant designed to handle tasks at any scale for clients across industries, delivered through deployment and licensing along with specialized AI R&D services. Claude works by combining natural language processing, human feedback, reinforcement learning, and interpretability techniques to produce a capable, controllable AI assistant that can assist with a wide range of tasks. The company differentiates itself from competitors by prioritizing safety, transparency, and controllability—emphasizing reliability, interpretability of model behavior, and user-controlled steerability in its AI systems. Anthropic’s goal is to make AI systems that people can trust and efficiently use to improve operations and decision-making across sectors.
Company Size
5,001-10,000
Company Stage
Late Stage VC
Total Funding
$77.3B
Headquarters
San Francisco, California
Founded
2021
Simplify's Take
What believers are saying
- Japan's megabanks access Claude Mythos by May 2026 end for operations.
- Launched 12 legal plugins May 12, 2026, attracting 20,000 professionals.
- Thomson Reuters integrates Claude with CoCounsel for 1 million users summer 2026.
What critics are saying
- Japan FSA working group delays Mythos banking deployments within 3-6 months.
- Voided Forge and Hiive trades trigger Delaware litigation in 6-12 months.
- EU AI Act audits halt Claude Mythos European sales by Q3 2026.
What makes Anthropic unique
- Anthropic pioneers Constitutional AI and RLHF for model alignment.
- Responsible Scaling Policy mandates safety thresholds before deployments.
- Claude Platform on AWS operates independently outside hyperscaler boundaries.
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Benefits
Flexible Work Hours
Paid Vacation
Parental Leave
Hybrid Work Options
Company Equity
Growth & Insights and Company News
6 month growth
↓ -3%1 year growth
↓ -3%2 year growth
↑ 1%Mozilla has discovered 271 security vulnerabilities in Firefox 150 using early access to Anthropic's Mythos Preview AI model. The findings represent a significant increase from the 22 bugs detected by Anthropic's Opus 4.6 model in Firefox 148 last month. Firefox CTO Bobby Holley said Mythos is "every bit as capable" as the world's best security researchers, whilst eliminating the need to "concentrate many months of costly human effort to find a single bug". He believes AI tools like Mythos tilt the cybersecurity balance towards defenders by making vulnerability discovery cheaper. Anthropic released Mythos Preview to a limited group of industry partners earlier this month. Mozilla CTO Raffi Krikorian argues such tools are particularly crucial for open source projects, which often rely on insufficient volunteer maintenance for security.
Anthropic's new AI model Mythos has sparked concern amongst policymakers at International Monetary Fund meetings over its potential to accelerate sophisticated cyberattacks on the global financial system. However, its developers argue the technology could provide banks with their strongest defence yet. What distinguishes Mythos is its ability to chain multiple security weaknesses into coordinated attacks, effectively automating complex cyber intrusions. This capability could significantly expand the pool of potential attackers in the near term. The model's creators emphasise a longer-term benefit: the same technology could enable banks to detect and patch vulnerabilities faster than ever, potentially shifting the balance towards defenders if widely adopted. The dual-use nature of Mythos has created both panic and optimism in boardrooms and governments regarding global financial system security.
Indian fintech companies including One97 Communications, Razorpay Software and Pine Labs are pushing Anthropic for early access to Mythos, the AI model that has raised global concerns about cyberattack risks. The firms want to test Mythos on their own systems to detect vulnerabilities following Anthropic's announcement of a limited rollout. The San Francisco-based AI developer considers the model too dangerous for wider release but major Indian financial technology companies are seeking early access to assess potential security threats to their platforms.
The US government is preparing to provide major federal agencies with access to Anthropic's new AI model, Mythos, according to a memo reviewed by Bloomberg News. Gregory Barbaccia, federal chief information officer at the White House Office of Management and Budget, informed Cabinet department officials on Tuesday that OMB is establishing protections to enable agencies to use the closely guarded AI tool. The move comes amid concerns that the powerful model could significantly increase cybersecurity risks. OMB is working to set up appropriate safeguards before rolling out access to the system across government departments.
Anthropic's new Mythos AI model is causing concern among banks, tech giants and governments over its potential implications for cybersecurity and the internet's future. The model has prompted a scramble amongst major institutions to understand its capabilities and risks. Details about the specific features raising alarms were not disclosed in the source material.