Remote Rust Software Engineer - Crypto Backend

Optimum Source Inc.; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Optimum Source Inc. is seeking a Software Engineer specializing in Rust for a fully remote role with Kraken.

You will design and implement robust Rust services and libraries, collaborating with Product, Design, and Frontend Engineering to deliver high‑quality features for a global crypto platform. Join a world‑class distributed team that values security‑first thinking, end‑to‑end ownership, and the ability to debug across the stack.

Qualifications

• 4+ years of software engineering experience.
• Proficient in network services or asynchronous Rust.
• Security-first mindset during system design.
• Ability to autonomously debug issues across OS, network, and application.
• Collaborate with product teams to gather requirements and constraints.
• Take complete end‑to‑end ownership of systems and libraries.

Responsibilities

• Express your crypto passion.
• Design and implement robust Rust services and libraries.
• Collaborate with cross‑functional teams including Product, Design, and Frontend Engineering to ensure seamless integration of new features and improvements.
• Write reusable, testable, and highly efficient code.
• Collaborate on large‑scale distributed systems architecture.
• Work side by side with hundreds of experienced Rust engineers.

Skills

Rust

Asynchronous services

Security-minded design

End-to-end ownership

Debugging across stack

Cross-functional collaboration

Job description

Optimum Source Inc. is seeking a Software Engineer specializing in Rust for a fully remote role with Kraken.

You will design and implement robust Rust services and libraries, collaborating with Product, Design, and Frontend Engineering to deliver high‑quality features for a global crypto platform. Join a world‑class distributed team that values security‑first thinking, end‑to‑end ownership, and the ability to debug across the stack.