Software Engineer - Database - Bitnomial

As a Software Engineer in the Database team at Bitnomial (part of Payward, the parent company of Kraken), you will build the services and data models that record every order, fill, and settlement at a CFTC-regulated exchange and clearinghouse. Bitnomial's exchange, clearinghouse, and brokerage systems are written largely in Haskell, with the database as a first-class part of the design.

What you'll do

• Build, test, and ship well-typed, well-reviewed features and fixes in Haskell services across the exchange, clearinghouse, and brokerage
• Understand the order, trade, clearing, and settlement flows end to end
• Design schema, constraints, and indexes for new features, using exact numeric types and audit trails so financial values cannot drift
• Write migrations that are lock-safe and reversible on large tables, and review the migrations of other engineers
• Read execution plans, find slow queries from production metrics, and fix the cause in the query, the index, or the access pattern
• Monitor systems, respond to alerts, and support daily operations such as settlement cycles
• Fix the cause of production issues and document what you learned

What you bring

• 3+ years of professional software engineering experience with a functional or strongly typed programming language such as Haskell, Rust, or C++
• Strong SQL and PostgreSQL skills, including transactions and isolation levels
• Solid computer science fundamentals, including data structures, concurrency, and distributed systems (replication, consistency, retries and idempotency, and how services keep shared data correct when parts fail)
• Willingness to take part in on-call and operational shifts
• Care and rigor with code and data that move money. You measure before you tune
• Good judgment with AI tools. You use them to work faster, and you read, test, and understand what they produce before you ship it
• A habit of asking why before changing something
• Sound judgment under pressure, with a calm and methodical approach when production is live
• Ability to collaborate across engineering, operations, risk, and compliance, with a habit of documenting

Nice to have

• Financial knowledge or experience in trading, markets, or financial services
• Bachelor's degree in computer science or a related field, or equivalent experience
• Haskell experience, particularly with PostgreSQL-backed services
• Production experience with AWS Aurora PostgreSQL
• Experience with time series or market data at volume, such as tick data, order books, or event streams
• Experience with Atlas or another declarative schema management tool

About Bitnomial

Bitnomial, part of Payward, is building the next generation US-based global derivatives exchange starting with digital assets. Bitnomial operates a US CFTC regulated exchange (DCM), clearinghouse (DCO), and brokerage (FCM), offering crypto-settled derivatives including futures, options, and perpetual futures to brokers, hedge funds, institutions, and trading firms worldwide.