Principal Engineer, R&D
Z
ZODLBlockchain
United StatesFull-TimePrincipal
Salary180000 - 250000 USD per year
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Job Details
- Required Skills
- PythonBlockchainKotlinSwiftTypeScriptRust
Requirements
- Significant experience building in the blockchain/crypto space
- Understanding of wallets, key management, transaction construction, and on-chain/off-chain tradeoffs
- Ability to pick up languages and frameworks as needed (polyglot builder)
- Shipped code in at least three languages in a professional context
- Strong product intuition
- Ability to articulate why something should be built and originate product ideas
- Excellent written communication
- Comfort operating independently with high ambiguity
- Experience with privacy-preserving technologies (zero-knowledge proofs, shielded transactions, viewing keys, threshold signatures/FROST)
- Familiarity with the Zcash ecosystem or adjacent privacy-focused protocols
- Experience with cross-chain interoperability (bridges, intents-based architectures, atomic swaps)
- Background in consumer wallet or payments UX
- Experience with web-based wallet architectures (browser extensions, progressive web apps, embedded wallets)
- Experience evaluating and integrating third-party SDKs and partner technologies
- Prior experience at an early-stage startup wearing multiple hats
Responsibilities
- Identify and evaluate new product opportunities across Zodl's product suite and beyond
- Build working prototypes in various stacks (Rust, TypeScript, Swift, Kotlin, Python) to validate feasibility and demonstrate value
- Evaluate partner and ecosystem technologies (cross-chain protocols, hardware wallet integrations, DeFi primitives, payment rails) in collaboration with Head of Partnerships
- Work with the CEO/Head of Product to align R&D exploration with product strategy and company direction
- Consult with mobile engineering on R&D activities to ensure alignment with platform constraints
- Leverage core and mobile engineering teams to assist and collaborate on prototypes as their bandwidth permits
- Produce clear handoff artifacts (specs, architectural recommendations, and prototype code) for engineering teams
- Assess protocol-level feasibility independently, engaging Head of Protocol R&D for deeper validation when necessary
- Present findings and recommendations to the CEO and broader team with conviction and clarity
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