Blockchain Engineer

About Us

In partnership with SBI Group, we aim to bring the majority of Japanese equities on-chain, creating a secure, transparent, and high-performance trading infrastructure that can support institutional volumes while remaining accessible to retail participants. We are building a next-generation decentralized exchange with a fully on-chain order book. Our system is built with a custom state transition function and consensus layer, purpose-designed for high-performance, low-latency trading. The goal is to deliver a trustless platform that matches the speed and efficiency of traditional trading engines while providing full transparency by running execution as close as possible to the blockchain itself.

Position Overview

We are looking for a Senior Rust Engineer with strong expertise in system architecture and execution engines. You will be responsible for designing and implementing the CLOB execution layer, including the order book, matching engine, and blockchain client logic. This role is highly technical and requires end-to-end ownership of critical components, from architecture to optimization. While you’ll primarily collaborate with a remote team of experienced engineers, there will occasionally be opportunities to work onsite during offsite sessions to support onboarding and enable more efficient collaboration.

Joining at this early stage of development offers a unique opportunity to influence critical technical decisions, achieve career growth, and enjoy competitive compensation.

Key Responsibilities

• Architect and implement the on-chain order book and matching engine in Rust.
• Design and extend exchange-specific logic (order execution, risk checks, account/state management).
• Design and develop protocol-level components, such as state transition logic, consensus, validator interaction, and transaction processing pipelines.
• Implement integration with oracles, bridges, and external data providers, ensuring correctness and resilience in adversarial conditions.
• Optimize for low-latency execution, concurrency, and gas efficiency.
• Conduct benchmarking and stress testing to identify and address potential performance/throughput bottlenecks.
• Develop and maintain a comprehensive suite of unit, integration, and end-to-end tests to ensure code reliability and functionality.

Requirements

• 5+ years of systems programming experience, with 3+ years in Rust.
• Proven track record building trading platforms, execution engines, or exchanges (DEX or centralized).
• Contributions to Rust-based L1 protocol projects (e.g., Solana, Cosmos SDK, Substrate).
• Deep understanding of distributed computing principles, including consensus algorithms, peer-to-peer (P2P) networking, and high-performance data structures.
• Deep knowledge of decentralized trading models (on-chain order books, AMMs, hybrid architectures).
• Ability to design and implement complex, production-grade systems independently.

Big Bonus

• Experience with competitive programming or algorithmic problem solving.
• Expertise in low-latency design, concurrency, and performance optimization.