Senior Software Engineer - Backend

Build the Future of Global Markets At Arcus, we're democratizing access to financial opportunity. The team behind Arcus previously built dYdX, one of the world's largest decentralized exchanges, helping power over $1.5 trillion in trading volume across more than nine years of experience building crypto trading infrastructure. Now we're applying that expertise to an even bigger opportunity: bringing the world's financial markets on-chain. Today, access to markets is still limited by geography, market hours, and legacy financial infrastructure. We believe anyone, anywhere should be able to trade the assets they care about, whenever they want. Built in partnership with Robinhood Chain and backed by a direct investment from Robinhood Crypto, Arcus is creating a unified, self-custodied trading platform where crypto, stock tokens, commodities, and perpetual futures can all be traded seamlessly from a single account, 24/7. Our vision is simple: to make the world's markets open, always-on, and universally accessible. Join us in shaping the next generation of global financial markets. About Arcus Our team has previous experience at Google, Meta, Citadel, DRW, IMC Trading, Stripe and other top companies We're a world-class team with top backers and advisors, including Andreessen Horowitz, Polychain Capital, Brian Armstrong, Fred Ehrsam, Naval Ravikant, Elad Gil and more → Learn more about working at Arcus RESPONSIBILITIES: Contribute to the core trading engine. Optimize for throughput, latency, and correctness under high-concurrency across many trading pairs. Own real-time market infrastructure. Build the pipelines that process, aggregate, and distribute order book updates, trades, and market events to traders. Build for 24/7 uptime. The exchange doesn't rest. Design systems for seamless upgradeability, horizontal scalability, and zero-downtime deploys. Shape the architecture as we scale. Make foundational technical decisions about how the platform evolves as we add asset classes and increase throughput. REQUIREMENTS: 5+ years experience working as a full-time developer You write secure, efficient, high quality code and have a good understanding of CS fundamentals Experience building or integrating with trading systems. Deep understanding of distributed systems and software architectures, excellent coding skills, and strong debugging capabilities. Fast learner who can quickly master new technologies. NICE TO HAVES: Experience or interest in decentralized finance. Salary range for this role is $210K to $300K USD (NY). Compensation subject to experience and location. Published salary bands pursuant to transparency laws, and do not include possible variable compensation such as annual merit increases, bonus eligibility, commission, or equity incentive.