Staff Software Engineer - Corporate Actions & Security Master

Who We Are:

Alpaca is a US-headquartered, global leader in agent-first brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more.

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 10 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 $400 million in funding from top-tier global investors including Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Opera Tech Ventures, SBI Group, Derayah Financial, Unbound, Peak XV, Elefund, and Y Combinator.

Our Team Members:

We're a dynamic team of 400+ 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 Alpaca is looking for a hands-on engineer with deep knowledge of Corporate Actions and Security Master systems.

You understand dividends, reorganizations, splits, mergers, tenders, redemptions, elections, and security lifecycle events. You know that entitlements are determined by validated announcement terms and the applicable stock record—and that vendor data must be enhanced and cross-verified before it can safely affect customer accounts.

You will help build the systems that manage security reference data, validate Corporate Action announcements, calculate entitlements, process resulting cash and position changes, and reconcile outcomes across a global brokerage platform.

Things You Get To Do

• Design systems for Corporate Actions, Security Master, and securities lifecycle processing across U.S. and international markets.

• Ingest, normalize, enhance, and cross-verify security and event data from vendors, depositories, custodians, and other authoritative sources.

• Build entitlement processing using validated announcement records, stock records, elections, withholding, currencies, and fractional-share rules.

• Support dividends, interest, splits, reverse splits, mergers, exchanges, spin-offs, tenders, rights, redemptions, calls, maturities, and elections.

• Manage security setup and changes involving symbols, identifiers, listings, exchanges, currencies, and lifecycle status.

• Build auditable workflows for validation, approvals, processing, corrections, exceptions, and reconciliation.

• Ensure security and event changes propagate accurately across books and records, positions, ledger, trading, margin, tax, and customer-facing systems.

• Write and operate production code while partnering closely with Operations, Product, and other engineering teams.

Who You Are

• 7+ years of professional software engineering experience building complex production systems.

• Hands-on Corporate Actions, Security Master, or securities-processing experience within a broker-dealer, clearing firm, custodian, bank, depository, transfer agent, or financial data vendor.

• Strong understanding of announcement terms, record and effective dates, stock-record eligibility, entitlements, elections, fractions, and reconciliation.

• Experience with financial data ingestion, normalization, versioning, lineage, and cr...