---
title: 'Staff Fullstack Engineer at Alpaca'
canonical: 'https://feeny.ai/job/staff-fullstack-engineer-alpaca-americas-eu-61bqwz8takt2'
type: 'job'
last_seen: '2026-10-15'
---

# Staff Fullstack Engineer at Alpaca 

- **Company:** Alpaca 
- **Location:** Americas / EU
- **Work type:** remote
- **Posted:** 2026-10-13
- **Last confirmed live:** 2026-10-15
- **Apply:** https://job-boards.greenhouse.io/alpaca/jobs/6223595004

## Job description

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.

## About the Role

We are seeking a Staff Full Stack Engineer to lead the technical direction of the team that builds Alpaca's Trading API product. Trading API serves developers, traders, and institutions who trade directly with Alpaca. The team owns that customer experience end to end: how customers access the platform, how their accounts are structured and secured, and the applications they use to trade.

The work spans the stack: customer-facing trading applications, the identity, account, and permission systems behind them, and integrations for partner apps and AI agents. The team also builds customer-facing trading features end to end, across our API.

This is a high-trust domain. These systems decide who can act on an account and what they are allowed to do. A defect can expose customer data, let the wrong person place a trade or move money, or lock a customer out at the moment they need to trade. The customer-facing surfaces also carry real-time trading: an order ticket or positions view that shows stale or wrong data can lead to a bad trade. We are looking for an engineer who has built and owned systems like this — identity and authorization, account models, and trading or financial applications — and who is as comfortable designing an authorization model as shipping the interface built on top of it.

You will not manage people directly. You will lead through architecture, code, design reviews, and mentorship, and you will remain a principal contributor. You will be the senior technical anchor for the team, partnering with the engineering manager, Product, and Design, and working closely with the trading, margin and risk, and platform teams behind the API.

## Key Responsibilities

- Own the architecture and technical roadmap for how customers access and use Trading API: identity and authentication, authorization and permissions, account and sub-account models, partner OAuth, and customer-facing trading and account-management applications.
- Design the access model for increasingly complex account structures — multiple users per account, sub-accounts, entity and advisor accounts, and delegated API and agent access — so that permissions are explicit, auditable, and enforced on the server.
- Lead technical delivery of next-generation Trading API customer applications, including real-time market data, order entry, and positions and order views, as the product expands to new customer surfaces.
- Drive the move from legacy monolith endpoints to a dedicated application backend, with clear API contracts between customer applications and platform services such as trading, accounts, transfers, ledger, and market data.
- Set the security bar for customer-facing systems: session and credential handling, MFA and passkeys, OAuth flows, rate limiting, input validation, and fast, durable responses to security findings.
- Set the standard for safe delivery: feature flags, staged rollouts, preview environments, testing strategy, and production observability.
- Partner with Product, Design, Compliance, Security, Brokerage Operations, and adjacent engineering teams to define behaviour and integration boundaries.
- Lead design reviews, mentor senior and mid-level engineers, and raise the engineering bar as the team grows.
- Act as a technical point of escalation for production issues on customer-facing Trading API systems, and drive durable prevention after incidents.

## Qualifications

- 8+ years of software engineering experience, with significant time on both backend services and customer-facing applications. Evidence of scope and ownership matters more than a strict year count.
- Proven ownership of a production system where a defect could expose customer data, grant the wrong access, or cause financial loss.
- Deep experience with authentication and authorization: OAuth 2.0 and OpenID Connect, session and token management, MFA, and role- or attribute-based permission models.
- Strong backend expertise in Go, or deep experience in Java, Kotlin, C#, or Rust and a clear willingness to work primarily in Go.
- Strong frontend experience with TypeScript and React, including complex, state-heavy applications. Experience with real-time data over WebSockets or other streaming protocols is strongly preferred.
- Solid knowledge of relational databases (PostgreSQL preferred), API design (REST and gRPC), and service-oriented systems running on Kubernetes.
- Demonstrated care for correctness and security: threat modelling, testing strategy, edge-case analysis, and safe production rollout.
- Clear communication with engineers, designers, product managers, and compliance and security partners, including when requirements are ambiguous or still being defined.
- Track record of technical leadership and mentorship across teams. Product-minded: you care what the customer sees and why, and you are effective as a teammate.

## Preferred Skills

- Experience building trading, brokerage, or other financial applications: order entry, positions and P&L, charting, or real-time market data.
- Experience with identity platforms or building identity in-house (for example, Amazon Cognito, Keycloak, or Auth0), passkeys and WebAuthn, or delegated access for third-party applications.
- Experience with API platforms and developer products: API keys, scopes, rate limits, SDKs, or developer dashboards.
- Experience with agentic AI integrations, such as MCP servers or tooling that lets AI agents act safely on a user's behalf.
- Familiarity with FIX or institutional trading workflows.
- Experience leading migrations off a legacy monolith in production-critical environments.

How We Take Care of You:

- Competitive Salary & Stock Options
- Health Benefits
- New Hire Home-Office Setup: One-time USD $500
- Monthly Stipend: USD $150 per month via a Brex Card

Alpaca is proud to be an equal opportunity workplace dedicated to pursuing and hiring a diverse workforce.

[Recruitment Privacy Policy](https://files.alpaca.markets/disclosures/AlpacaRecruitmentPrivacyPolicy.pdf)

## About Alpaca 

## Company Overview
- **One-liner**: Alpaca provides developer-first APIs and brokerage infrastructure that enable fintechs, institutions, and individual developers to build and scale investing and trading applications across stocks, options, and crypto.
- **Entity Type**: Private (backed by $320M in total funding)
- **Headquarters**: Silicon Valley, California, USA (globally distributed remote company)
- **Founded**: 2015
- **Founders**: Yoshi Yokokawa (CEO) and Hitoshi Harada (CPO)

## Core Business
- **Primary industry/industries**: Financial Technology (Fintech), Brokerage Infrastructure, API Services
- **Target customers**: B2B (fintechs, global financial institutions, broker-dealers, registered investment advisors) and B2C (algo traders, quant funds, retail investors, developers)
- **Mission statement**: "Open financial services to everyone on the planet" — allowing 8+ billion people to access financial markets.

## Products & Services
- **Broker API**: Full-stack, end-to-end brokerage infrastructure service that empowers global fintechs and institutions to build customizable investing applications and platforms. Includes clearing, custody, compliance, and regulatory setups.
- **Trading API**: Allows programmatic traders, retail investors, hedge funds, and prop firms to develop algorithms that automate trading strategies across stocks, options, and crypto. Features REST/FIX integration, real-time market data, and 1.5ms order processing via OMS v2.
- **Tokenization Network**: Enables tokenized equities to trade as one connected market with instant in-kind mint/redeem, deep liquidity, and 24/7 API access.
- **High Yield Cash**: Competitive APY on uninvested USD cash with up to $2.5M in FDIC sweep coverage.
- **Fully Paid Securities Lending**: Enables clients to lend securities for additional yield.
- **24/5 Trading**: Always-on trading with automatic session-aware order routing and real-time overnight data.
- **Self-Clearing Operations**: Full self-clearing broker-dealer (member of DTCC, FICC, OCC, Nasdaq Exchange) providing reduced costs for partners.
- **Paper Trading & Backtesting**: API sandbox environment and backtesting with historical market data.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Total Funding of $320 million from top-tier investors
- **Notable Investors**: Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Eldridge, Y Combinator, and angel investors including Joshua S. Levine (former CTO/COO of ETRADE), Nate Rodland (former COO of Robinhood), Patrick O’Shaughnessy, Jacqueline Reses, Asiff Hirjii (former President/COO of Coinbase), Aaron Levie (CEO of Box), and founders of Plaid and Wealthsimple.
- **Growth Signals**: 
  - Over 7 million brokerage accounts opened across 40+ countries
  - 61,000+ monthly active developers (MAD)
  - 250+ employees in 25 countries
  - Self-clearing since 2024; member of DTCC, FICC, OCC, and Nasdaq Exchange (2025)
  - ISO 27001:2022 certified, SOC 2 Type II, GDPR, EU US DPF, CSA Level 1, ICO compliant
  - Excess SIPC coverage up to $30M in securities and $1M in cash per customer

## Competitive Advantages
- **Developer-first approach**: Easy-to-use APIs with SDKs in Python, .NET/C#, Go, Node, and more; 99.99% system uptime as of January 2026.
- **Full-stack regulatory infrastructure**: FINRA-registered broker-dealer, self-clearing, SIPC member with excess coverage, and multiple international regulatory licenses (Bahamas, Japan, FinCEN MSB).
- **Multi-asset support**: Stocks, ETFs, options, crypto, fixed income, tokenized equities — all via a single API.
- **Global reach**: Powers financial institutions across 40+ countries including Australia, Chile, Denmark, France, Mexico, UK, UAE, Saudi Arabia, Thailand, Turkey, and more.
- **Proprietary technology**: Builds its own technology stack rather than relying on legacy vendors (e.g., open-source MarketStore database for financial time-series data).

## Strategic Focus
- **Global expansion**: Actively working on new product offerings such as global stocks and index options.
- **Deepening regulatory moat**: Continued investment in self-clearing capabilities and international licensing to serve partners worldwide.
- **Tokenization & digital assets**: Expanding the Instant Tokenization Network and digital asset offerings for 24/7 liquidity.
- **Embedded finance**: Helping fintechs and institutions embed investing features directly into their own platforms.
- **Scaling the developer community**: Growing the 61,000+ monthly active developer base through open-source contributions, community platforms, and educational resources.

## Why Work Here
- **100% remote-first**: Globally distributed team across 20+ countries and almost every time zone; no central office requirement.
- **Global, multicultural team**: "Melting pot of diverse backgrounds" from tech startups to deep financial experience; team members in 25 countries.
- **Culture**: Goal-oriented, radical honesty, empathy-driven, and focused on solving hard problems. Described as "ambitiously creative" with a "last 10% of effort" mentality.
- **Career growth**: Fast-scaling startup with "limitless opportunities" for those looking to challenge themselves and advance.
- **Impact**: Directly shaping the future of finance by disrupting a legacy industry; building infrastructure that enables millions of people to access financial markets.
- **Leadership**: Founded by Yoshi Yokokawa (former Lehman Brothers, Endeavor Entrepreneur) and Hitoshi Harada (former Lead Architect at Greenplum/EMC, PostgreSQL contributor); executive team from Robinhood, Strike, TD Securities, TMX Group.
- **Notable perks**: Competitive compensation, equity, and the chance to work on open-source projects (e.g., MarketStore).

## Sources
1. [alpaca.markets - About Us](https://alpaca.markets/about-us)
2. [alpaca.markets - Homepage](https://alpaca.markets/)
3. [alpaca.markets - Careers/Hiring](https://alpaca.markets/hiring)
4. [LinkedIn - Alpaca](https://www.linkedin.com/company/alpacamarkets)
5. [docs.alpaca.markets - About Alpaca](https://docs.alpaca.markets/us/docs/about-alpaca)

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