Software Engineer, Backend

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🕒 January 13

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Cumberland Labs

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2022

🔌 API

☁️ SaaS

API • Software • SaaS

Cumberland Labs is a technology company focused on developing innovative software solutions that enhance operations and user experiences across various industries. They leverage cutting-edge programming technologies to create efficient, scalable applications tailored to the needs of their clients.

📋 Description

• Build core exchange logic: markets, users, collateral, fees, order routing • Implement professional liquidity sources, on-chain matching, margining, liquidation, and risk enforcement • Help design the end-to-end architecture of a perpetuals exchange • Ensure on-chain and off-chain systems operate as a cohesive, low-latency stack • Optimize systems for latency, throughput, and compute efficiency • Write thorough tests and maintain clear, living documentation • Improve developer tooling and onboarding experience • Design, implement, and deploy production-grade Solana smart contracts in Rust

🎯 Requirements

• 3+ years of professional software development experience • Strong Rust proficiency (production experience preferred) or willingness to learn • Strong backend fundamentals (APIs, distributed systems, async systems) • Experience with low-latency or performance-sensitive systems • Familiarity with DeFi, trading systems, or derivatives • Ownership mindset and comfort working in an early-stage environment • Strong English communication skills • **Bonus Points ** • Solana runtime optimizations and CU profiling • Previous work experience with matching engines, order books, or execution systems • Perpetuals, margin trading, funding rates, or ADL • Market-making or trading infrastructure experience**

🏖️ Benefits

• No bureaucracy — just fast shipping and real impact • High ownership and real impact from day one • Competitive base + meaningful token/equity upside. Early team members receive ownership aligned with long-term protocol success. • Fully remote • IRL meetups and company offsites