Senior Ledger Operations Engineer
Role summary
Gemini is seeking a Senior Ledger Operations Engineer to join their Customer Support team. This role focuses on building and maintaining robust data reconciliation systems for crypto products. Responsibilities include designing and optimizing data pipelines, automating ETL processes, and enhancing SQL query performance. The engineer will collaborate with various teams and vendors to develop next-generation reconciliation tools and support critical projects like blockchain reconciliation. The position requires 5+ years of experience in implementing reconciliation systems and building real-time data solutions, with strong SQL skills and expertise in technologies like Python, Spark, Kafka, and Airflow. This hybrid role requires in-office presence twice a week in San Francisco or New York City.
About the Company
Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.
The Department: Trading Systems (Ledger Operations)
The team is data driven and customer-centric. Team members work closely with data scientists, engineers, product managers, and corporate operational stakeholders to reconcile data. Projects range from the very urgent, short sprint to redesigning long-term solutions to improve scalability and automation. Ledger Operations primary goal is to ensure high quality, scalable data reconciliation with proactive monitoring and reducing delays for reactive corrections. This team is responsible for building the “next generation” of reconciliation tools to maintain and expand Gemini’s internal reconciliation processes.
The Role: Senior Ledger Operations Engineer
This role is required to be in person twice a week at our New York City, NY office.
Responsibilities:
Minimum Qualifications:
Preferred Qualifications:
Salary Range: The base salary range for this role is between $126,000 - $180,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.
In the United States, we offer a hybrid work approach at our hub offices, balancing the benefits of in-person collaboration with the flexibility of remote work. Expectations may vary by location and role, so candidates are encouraged to connect with their recruiter to learn more about the specific policy for the role. Employees who do not live near one of our hubs are part of our remote workforce.
At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and 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. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.
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Sample Gemini interview questions
- 1
Build a service for log management across distributed systems.
system designmedium - 2
Perform a vertical order traversal of a binary tree. Input: root = [1,2,3,4,5,6,7] Output: [[4],[2],[1,5,6],[3],[7]] Explanation: Traverses the tree maintaining column indices, seamlessly grouping nodes that share the exact same vertical alignment.
codingmedium - 3
Palindromes in Base-10 and Base-k Return the first n integers that are palindromes in both base-10 and base-k. Input: n = 2, k = 4 Output: [1, 5] Explanation: 1 is '1' in base 4, and 5 is '11' in base 4. Both are perfect palindromes in decimal and base 4 simultaneously.
codingmedium - 4
Valid Word Abbreviation Determine if a string matches a valid word abbreviation. Input: word = "apple", abbr = "a2e" Output: FALSE Explanation: The abbreviation claims exactly 2 characters are skipped between 'a' and 'e', but "ppl" is actually 3 characters long.
codingmedium - 5
Alien Dictionary Order Derive the alien dictionary order from a sorted list of alien words. Input: words = ["z","x","z"] Output: "" (Empty String) Explanation: The letter 'z' cannot come before 'x' and then suddenly after 'x', creating a cycle and making the dictionary invalid.
codingmedium
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