Exchange Software Engineer

About Bitnomial Bitnomial is building the next generation US-based global derivatives exchange, starting with digital assets and progressively expanding to encompass a full spectrum of commodities worldwide. Bitnomial operates a US CFTC regulated exchange (DCM), clearinghouse (DCO), and brokerage (FCM). Bitnomial offers the Bitcoin Complex comprising physically delivered Bitcoin Futures, Options, Deci Futures, and Hashrate Futures used by brokers, hedge funds, institutions, and trading firms around the world. Role Overview Bitnomial is hiring an engineer to design and own core services across the exchange and clearing stack: matching engines, order lifecycle, margin and risk systems, position netting and settlement, market data, and collateral flows. The codebase is Haskell. The environment is low-latency, high-correctness, and directly connected to regulated capital markets. The work is systems design under regulatory, latency, and failure constraints. This role is designed for two types of candidates: engineers from the trading or prop firm world (typically Java or C++) who want to work in Haskell, and Haskell engineers who want to apply their skills to exchange and clearing infrastructure. Strength in either background is sufficient. Strength in both is exceptional. Core Requirements Engineering Fundamentals Strong software engineering skills in a compiled, statically typed language (Haskell, Java, C++, Scala, OCaml, Rust) Comfort with concurrent and multithreaded systems Experience designing systems where correctness and latency both matter Ability to reason about failure modes, edge cases, and state management Clear written communication: design documents, technical tradeoffs, and architectural decisions Trading Systems or Functional Programming (one or both) Trading systems path: Experience building or operating order execution, risk, margin, settlement, or market data systems, in any language. Understanding of exchange or clearing workflows, position management, or collateral systems. Haskell path: Production Haskell experience or deep familiarity with typed functional programming (strong type systems, effect management, property-based testing). Willingness to learn trading and clearing domain concepts. Infrastructure Linux systems proficiency: debugging, profiling, deployment Comfort with networked systems: TCP, binary protocols, serialization formats Experience with relational databases (PostgreSQL preferred) Familiarity with market protocols (FIX, binary protocols) or message systems (Kafka) is a plus Baseline Expectations Candidates should be able to: Own services end-to-end from design through production, including observability and operational runbooks Debug across application, network, and system layers without waiting for someone else to narrow the problem Make sound technical decisions independently in ambiguous situations Operate with the rigor expected when systems handle real capital in regulated markets Experience with matching engine or OMS internals, real-time risk and margin systems, high-throughput persistence and serialization, or reconciliation and surveillance pipelines is valuable but not required. If a candidate lacks the fundamental technical baseline described above, the role is not a fit.

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