Remote Full-Stack Engineer — Solana DEX & DeFi

The Bitcoin Street Journal; Flint (MI); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Fully remote

Job summary

Flint Labs is building a high-performance on-chain DEX on Solana. You will design and build across Flint’s full stack, from on-chain and backend systems to the frontend trading interface.

This is a high-ownership role with aggressive timelines; you will implement core exchange logic, wallet integrations, and real-time UI systems, while shaping the architecture from smart contracts to the frontend.

Qualifications

• 3+ years of professional software development experience.
• Comfortable across the stack: Rust for backend and on-chain systems, React and TypeScript for frontend.
• Experience building complex, data-intensive web applications.
• Strong backend fundamentals including APIs, distributed systems, and async systems.
• Experience with low-latency or performance-sensitive systems.
• Familiarity with DeFi, trading, or financial applications.
• Ownership mindset and comfort in an early-stage environment.
• Experience building trading interfaces or orderbook->
• Experience integrating Solana wallets and transaction flows in web apps.
• Solana runtime optimizations and CU profiling.
• Previous experience with matching engines, order books, prop AMMs, or execution systems.
• Familiarity with perpetuals, margin trading, funding mechanics, or ADL.
• Market-making or trading infrastructure experience.

Responsibilities

• Build core exchange logic: markets, users, collateral, fees, and order routing.
• Build the trading interface: order entry, positions, balances, charts, and real-time market data.
• Implement on-chain matching, margining, liquidation, and risk enforcement.
• Integrate Solana wallet flows and backend services into real-time UI systems.
• Help design the end-to-end architecture of the exchange, from smart contracts to the frontend.
• Implement low-latency data streaming and state management across the stack.
• Improve developer tooling and onboarding experience.
• Optimize systems for latency, throughput, and compute efficiency.
• Write thorough tests and maintain clear, living documentation.
• Own features end to end, from design to production.

Skills

Rust

React/TypeScript

Distributed systems

Low-latency

DeFi familiarity

Trading/finance experience

Ownership mindset

Tools

Solana wallets integration

Solana runtime optimizations

Matching engines

Job description

Flint Labs is building a high-performance on-chain DEX on Solana. You will design and build across Flint’s full stack, from on-chain and backend systems to the frontend trading interface.

This is a high-ownership role with aggressive timelines; you will implement core exchange logic, wallet integrations, and real-time UI systems, while shaping the architecture from smart contracts to the frontend.