Brokerage Accounting Manager (Japan Securities Entity)

Who We Are: Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Our recent Series D funding round brought our total investment to over $320 million, fueling our ambitious vision. Amongst our subsidiaries, Alpaca is a licensed financial services company, serving hundreds of financial institutions across 40 countries with our institutional-grade APIs. This includes broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, totalling over 9 million brokerage accounts. Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to achieve our mission of opening financial services to everyone on the planet . We're deeply committed to open-source contributions and fostering a vibrant community, continuously enhancing our award-winning, developer-friendly API and the robust infrastructure behind it. Alpaca is proudly backed by top-tier global investors, including Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Unbound, SBI Group, Derayah Financial, Elefund, and Y Combinator. Our Team Members: We're a dynamic team of 380+ globally distributed members who thrive working from our favorite places around the world, with teammates spanning the USA, Canada, Japan, Hungary, Nigeria, Brazil, the UK, and beyond! We're searching for passionate individuals eager to contribute to Alpaca's rapid growth. If you align with our core values—Stay Curious, Have Empathy, and Be Accountable—and are ready to make a significant impact, we encourage you to apply. Your Role: We are seeking an experienced accounting professional to oversee the full spectrum of accounting activities for our Japan entity. In this role, you will be responsible for both securities accounting for our regulated securities business and general corporate accounting for the operating company. You will play a critical role in supporting the financial and accounting functions of the Japan entity through regulatory capital management, regulatory reporting, financial close processes, cash management, payment operations, and financial reporting. In addition to calculating and monitoring the Capital Adequacy Ratio (CAR), you will contribute to capital planning and capital strategy development to support business growth and new business initiatives. Working closely with senior management and global finance teams, you will help build and maintain a strong financial foundation that supports sustainable growth while ensuring compliance with regulatory requirements. You will also collaborate with global finance teams and stakeholders across multiple jurisdictions to drive operational excellence and continuous improvement. In our fast-growing startup environment, we are looking for someone who can not only execute core accounting responsibilities with accuracy and ownership, but also contribute to building new processes, supporting system implementations and migrations, and providing accounting and finance support for new business initiatives and product launches. Things You Get To Do: Securities Accounting Manage accounting operations for a regulated securities business Perform accounting for securities transactions and customer assets Calculate, monitor, and validate the Capital Adequacy Ratio (CAR) Support the development of capital plans and capital strategies aligned with business growth objectives Partner with management and global teams on capital management and regulatory capital optimization Prepare and submit regulatory reports and filings to the Financial Services Agency (FSA), Japan Securities Dealers Association (JSDA), and other regulatory bodies Support accounting and finance activities related to regulatory compliance requirements General Accounting and Finance Manage general accounting operations for the corporate entity Perform monthly, quarterly, and annua