Senior Software Engineer

WHO WE ARE

Founded in 2012, 3iQ is one of the world's leading alternative digital asset managers, pioneering institutional-grade investments. 3iQ launched the world’s first Digital Assets Managed Account Platform (QMAP), a hedge fund investment solution, offering innovative risk-managed investment solutions to gain exposure to digital assets. 3iQ was also the first to launch a Bitcoin and Ethereum ETP listed on a major global stock exchange, integrate staking into its Ethereum and Solana ETPs boosting investor returns, and offering other regulated ETPs. In 2024, Monex Group, a leading Japanese financial group, took a majority stake in 3iQ. Since 2012, 3iQ has been at the forefront of innovation in digital asset investment management. To learn more about 3iQ, visit 3iq.io.

W: https://www.3iq.io/
L: https://www.linkedin.com/company/3iq-corp/
X: https://x.com/3iq_corp

OUR CULTURE

At our company, we lead with Kyōdō — putting “we before me” and winning as a team. We stay humble, curious, and always learning, lifting each other up and celebrating shared success. We move fast, adapt boldly, and focus on what’s possible rather than what’s familiar. We speak with honesty and care, practicing radical candor to help each other grow. And when we commit, we follow through — with accountability, integrity, and real ownership. If you thrive in a supportive, ambitious, growth-minded culture, you’ll belong here!

THE ROLE

The Senior Software Engineer sits at the intersection of exchange connectivity, execution and market data for 3iQ’s trading technology team. You will own the trading core, including order and execution management, exchange integrations and market data pipelines, which risk, the ledger and our client apps all build on. You will be a hands-on builder and an owner: designing, building, deploying and operating what you ship, sharing in the on-call rotation for systems that trade 24/7, and helping set the technical standard for how we build as we scale.

WHAT WILL YOU BE DOING?

• Design and evolve the core trading architecture for throughput, latency and failure isolation

• Build and maintain venue gateways over REST, WebSocket and FIX: order entry, cancels, amendments and drop copy
• Own order and execution management: one order per client, client order IDs aligned with the venue, no missed or hidden trades
• Run market data ingestion and normalization across 10,000+ instruments, with redundancy and failover between feeds and gateways
• Automate the instrument lifecycle: listing, delisting, expiries and option rotations
• Onboard new venues and instrument types, and absorb their quirks so clients never see them
• Be the technical reference for the engineers building risk, ledger and client apps on top of the core
• Lead incident response on the trading path, and write the runbooks so others can too

WHAT ARE WE LOOKING FOR?

• 7+ years building production backend systems, with at least 3 in trading, market infrastructure or exchange connectivity
• Deep experience with exchange or broker APIs (REST, WebSocket, FIX), order lifecycles and market data
• Strong command of a systems or backend language used in production trading, such as C++, Rust, Java or Go
• Solid distributed systems fundamentals: concurrency, idempotency, back-pressure, failover and consistency
• Experience designing for high message rates (tens of thousands per second and up) at millisecond latency
• A track record of owning a production system end to end, including on-call for a 24/7 market
• Clear written and spoken English

NICE TO HAVE

• Crypto derivatives: perpetuals, funding, options lifecycle, margin and liquidation on Binance, Deribit or similar

• OMS/EMS or smart order routing experience
• Functional programming or JVM experience (Clojure, Scala, Kotlin)
• Experience leading architecture decisions across several teams

WHAT DO WE OFFER?

• Competitive compensation including discretionary bonus
• Opportunity to work at the forefront of an innovative, fast-growing industry
• Remote-first team with a flexible work environment focused on results
• Collaborative, low-ego culture with a strong execution mindset
• Annual company offsites to connect, collaborate, and recharge
• Birthdays off to celebrate your day your way!
• Unlimited Vacation
• Supportive parental leave policy designed to prioritize family and well-being
  

3iQ is an equal opportunity employer. We encourage people from all backgrounds to apply but must be eligible to work in the country to be considered. We are committed to ensuring that our products and services are made available and accessible to everyone. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.

3iQ welcomes applicants with disabilities. Accommodation is available on request at every stage of our recruitment process, including applications, interviews, assessments and onboarding. If you need accommodation, or would like this posting in an accessible format, please contact People & Culture at peopleandculture@3iq.io. We will work with you to meet your needs, and anything you share will be kept confidential.