Principal Engineer

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Zcash Open Development Lab (ZODL)

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2026

₿ Crypto

💳 Fintech

Crypto • Fintech

Zcash Open Development Lab (ZODL) is the team and project behind Zodl, a privacy-first mobile wallet built for shielded Zcash (ZEC). Zodl provides a consumer-facing, self-custodial wallet that emphasizes strong on-chain privacy (shielded transactions), 1-click shielding of transparent funds, private cross-chain payments (CrossPay), private swaps between assets, hardware wallet (Keystone) cold-storage support, and merchant payments via partners like Flexa. The product is developed by original Zcash protocol creators and mobile engineers focused on usability, privacy-by-default design, and minimizing data collection and tracking.

📋 Description

• Build and maintain Zallet (our CLI wallet) and Zcash’s Rust-based core libraries • Implement protocol features based on existing specifications and guidance • Developing and maintaining specifications to enhance, document, and support security analysis of the Zcash protocol, either led by ZODL or in collaboration with third-party developers. • Develop wallet infrastructure and features • Improve performance, reliability, and developer ergonomics of core systems • Support downstream teams (e.g. Zodl mobile) with developing features, and investigating issues • Participate in code reviews, testing, and release processes • Respond to bugs and security issues with urgency

🎯 Requirements

• Experience with Rust, and with developing secure and reliable code in modern programming languages similar to Rust, Swift, Kotlin, and Go. • Experience building reliable, secure backend or systems-level software • Ability to work from technical specifications • Solid understanding of security fundamentals • Experience with testing, debugging, and performance optimization • Comfortable working in a fast-moving startup environment • Experience with cryptography libraries or blockchain systems • Deep knowledge of cryptography is not required, but a willingness to learn and an appreciation for the importance of security are essential. • Familiarity with Zcash concepts • Experience with mobile-integrated backends or SDKs • Open-source contributions