About Bullish

Bullish is an institutionally focused global digital asset platform that provides market infrastructure and information services. These include: Bullish Exchange – a regulated and institutionally focused digital assets spot and derivatives exchange, integrating a high-performance central limit order book matching engine with automated market making to provide deep and predictable liquidity. Bullish Exchange is regulated in Germany, Hong Kong, and Gibraltar. CoinDesk Indices – a collection of tradable proprietary and single-asset benchmarks and indices that track the performance of digital assets for global institutions in the digital assets and traditional finance industries. CoinDesk Data - a broad suite of digital assets market data and analytics, providing real-time insights into prices, trends, and market dynamics. CoinDesk Insights – a digital asset media and events provider and operator of Coindesk.com, a digital media platform that covers news and insights about digital assets, the underlying markets, policy, and blockchain technology.

Reports to:

Engineering Organization & Culture

At Bullish, we are engineering the institutional standard for the digital asset industry. Our mission is to build a platform centered on security and compliance, requiring a commitment to technical excellence that extends beyond delivering code. As a global organization, we set a high bar for those driven to do their best work alongside experienced, deeply specialized peers.

Engineers here treat development as a craft and own the outcome from concept to deployment. Our teams bring structure to ambiguity and shape the frameworks that support a global organization. We refuse to compromise on quality and seek problem solvers who thrive on complex technical challenges with real market consequences.

The Team: Trading Product Engineering

The Trading Product Engineering team builds the core distributed systems that drive the global trading experience on Bullish Exchange. We own the end-to-end order lifecycle, orchestrating a hybrid matching engine that combines a Central Limit Order Book with proprietary Automated Market Making. Our high-throughput APIs enable trading across Spot, Futures, and Options. The work demands absolute correctness in managing complex financial state transitions, translating intricate market structures into scalable solutions.

What You'll Do

• Design and deliver reusable, reliable, low-latency Java code that powers the Exchange.

• Raise the bar on code quality, organization, and automation as the system scales under load.

• Profile and resolve performance bottlenecks in the order-processing path.

• Improve stability through automated tests at the unit, integration, and performance layers.

• Collaborate across a distributed team of engineers, product managers, and project managers.

What You'll Bring

• Strong Java (17+) fluency with experience in performance tuning.

• Track record of designing and building systems for high throughput and low latency.

• Hands-on experience with agentic AI development: LLM integration, prompt engineering, and SDLC automation.

• Solid understanding of middleware and messaging technologies such as Chronicle Queue, RabbitMQ, Aeron, and Kafka.

• Working knowledge of Spring or Micronaut, Docker, and Kubernetes.

• Deep knowledge of testing methodologies, SDLC practices, and CI/CD pipelines.

• Ownership of the components the Exchange depends on.

Nice to Haves

• Experience working on core trading functionality such as order matching and orderbook generation.

• Familiarity with financial derivative products (Options, Futures), the FIX protocol, and related workflows.

• Understanding of blockchain technologies.

Bullish is proud to be an equal opportunity employer. We are fast evolving and striving towards being a globally-diverse community. With integrity at our core, our success is driven by a talented team of individuals and the different perspectives they are encouraged to bring to work every day.