Senior Software Engineer, Risk and Margin

<div class="content-intro"><p><strong>Who We Are:</strong></p> <p>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 <a href="https://alpaca.markets/blog/alpaca-raises-150-million-at-a-1-15b-valuation-to-build-the-global-standard-for-brokerage-infrastructure/">recent Series D funding round</a> brought our total investment to over $320 million, fueling our ambitious vision.</p> <p>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.</p> <p>Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to achieve our mission of <strong>opening financial services to everyone on the planet</strong>. 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.</p> <p>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.</p> <p> </p> <p><strong>Our Team Members:</strong></p> <p>We're a dynamic team of 230+ 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!<br><br>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.</p></div><h3><strong>Your Role: </strong></h3> <p>We are seeking a highly skilled Senior Software Engineer to join our Risk and Margin Team. This team is responsible for designing and maintaining the critical infrastructure that powers our trading systems – from order routing and execution engines to market connectivity and real-time risk controls. You will work closely with traders, quants, and other engineers to deliver high-performance, reliable, and scalable trading platforms.</p> <p>This role is ideal for someone who thrives in high-stakes, low-latency environments, has strong systems-level engineering experience, and enjoys tackling performance bottlenecks and large-scale distributed systems problems.</p> <h3><strong>Key Responsibilities:</strong></h3> <ul> <li>Design and implement high-performance trading infrastructure, including order management systems, execution gateways, and market data distribution.</li> <li>Optimize low-latency systems for throughput, determinism, and fault tolerance.</li> <li>Integrate with global exchanges, brokers, and ECNs, ensuring robust FIX/FAST/OUCH/ITCH connectivity.</li> <li>Build real-time risk checks and margin controls aligned with compliance requirements.</li> <li>Develop and maintain core libraries, APIs, and frameworks used across trading desks.</li> <li>Collaborate with quants and traders to prototype and productionize new strategies.</li> <li>Monitor, debug, and optimize production systems to ensure high availability and rapid recovery.</li> <li>Mentor junior engineers and set engineering standards for code quality, testing, and deployment.</li> </ul> <h3><strong>Qualifications:</strong></h3> <ul> <li>Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.</li> <li>7+ years of software engineering experience, with at least 3 years in trading, fintech, or high-performance systems.</li> <li>Strong programming skills in Go, C++, or Java; Python experience.</li> <li>Deep understanding of operating systems, networking, and conc ... (truncated, view full listing at source)