Senior Blockchain Engineer

About Lumina Lumina is building private trading infrastructure for institutional and high-value assets. We're a Miden Pioneer building on zero-knowledge technology, with live integrations across multiple venues and a roadmap that spans crypto and real-world assets. About the Role We need a senior engineer who can take architectural direction and run with it. You'll be working directly with the CTO, translating system design into working code. This isn't a ticket-taker role – you'll be expected to understand thxe why, not just the what. You'll be building across our Miden integration, external venue connectors, and settlement infrastructure. If you need a detailed JIRA ticket to start work, this isn't the role. Remote – async-friendly, but occasional overlap with SAST (Cape Town) appreciated You 5+ years engineering experience, at least 2 in blockchain/crypto Strong Rust – this is non-negotiable Strong TypeScript for frontend and tooling Systems thinking – you see how pieces connect, not just the piece in front of you Comfortable with ambiguity – startup pace, evolving requirements Self-directed – you ask good questions, then go build Opinions on architecture – you'll push back when something's wrong Nice to Have ZK/cryptography exposure (Miden, Noir, Circom, etc.) Trading systems / DeFi experience Experience with Hyperliquid, XRPL, or similar venues Understanding of settlement, custody, compliance patterns How to Apply Send a short note on why you're interested and a link to something you've built that you're proud of. No cover letter templates. No recruiter spam.