Trading Systems Engineer (New York, Portland, Chicago or San Francisco)


Full time

San Francisco, CA, USA

Nov 14

Help us Build the Future of Money

Gemini Trust Company, LLC (Gemini) is a licensed digital asset exchange and custodian. We built the Gemini platform so customers can buy, sell, and store digital assets (e.g., Bitcoin, Ethereum, and Zcash) in a regulated, secure, and compliant manner.

 Digital assets and blockchain technology have the power to transform the world for good. This truth, along with our core values, form the bedrock of our company and culture. At Gemini, no job is too small and no project too big as we endeavor to build the future of money. We are a mission-driven, team-based, inclusive, and determined community of thought leaders who invest in each other and the long game. Join us in our mission!

The Department : Engineering

Gemini is regulated and licensed like a bank, but it’s run like a tech startup, and engineering is the core of the company. There’s a wide range of tough problems to solve at Gemini – from properly securing hundreds of millions of dollars worth of customer funds, to developing innovative new blockchain products, to finding new techniques to combat fraud, to shaving microseconds off our API response times, and everything in between.

All of Gemini’s engineers are able to work across the software platform, not just on their own specialization or sub team. We value a thoughtful, collaborative software development process, coupled with a pragmatic approach to problem solving and delivering software.

Role: Trading Systems Engineer

Work with our team of core trading systems developers to improve and expand the functionality of our matching engine, order entry mechanisms, and market data publication. We design, develop, deploy, and support real-time systems for our digital asset trading platform. Time is measured in microseconds and we aim to start measuring in nanoseconds. Reliability, fault tolerance, recoverability, throughput, and latency are what we look for in our systems. If something on the spaceship is broken we aim to fix it, if something can be automated we automate it, and we ship our code weekly.


  • Use engineering principles to identify and measure risk and to implement quantitative and technical risk management solutions in software
  • Understand business needs, facilitate and develop process workflows, data requirements, and specifications required to support implementation of our real time exchange
  • Develop scalable architecture for the current new version of our exchange as well as any future state while contributing towards improving the trading infrastructure
  • Write robust code and APIs to support the company’s vital business
  • Build systems to monitor the status and health of the trading platform.
  • Identify and advocate for changes vital to the stability and supportability of the system.
  • Mentor and advise teammates to ensure new features are efficient, highly available, and fault tolerant.
  • Provide continuity and stability to the production environment.
  • Provide quick response to production issues to help eliminate down time thereby ensuring high availability and performance of our trading platform.
  • Coordinate, prioritize and plan the changes to our trading software thereby ensuring smooth exchange migrations, quick time to market for new features and software.


  • 4+ years developing exchange or trading systems with C++, Java or Scala
  • Delivers testable code using unit testing frameworks such as Googletest and JUnit
  • 3+ years working with order handling or matching engines
  • 3+ years working with FIX or other market data/order protocols
  • 3+ years in building real-time Linux systems
  • In-depth understanding of networking protocols and some experience programming with low-level sockets APIs

Preferred Qualifications:

  • Multithreading and concurrency experience
  • Binary or custom protocols (e.g. ITCH/OUCH, SBE etc.)
  • Linux kernel tuning and optimization
  • Experience with margins/derivatives products
  • Experience with continuous integration tools like Jenkins
  • Experience working with multi-language build tools such as Bazel
  • Low latency/lock-free development and design
  • Experience supporting a low-latency, containerized production environment
  • Experience working with modern message brokers such as Apache Kafka or Apache Pulsar 

It Pays to Work Here

We take a holistic approach to compensation at Gemini, which includes:

  • Competitive base salaries across all departments
  • Ownership in the company via profit sharing units
  • Amazing benefits, 401k match contribution, and flexible hours
  • Snacks, Perks, Wellness Outings & Events


Gemini is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a disability or special need that requires accommodation, please let us know.

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