Senior Blockchain Engineering

As a Senior Blockchain Engineer at Arukah Capital, you will architect the blockchain infrastructure for Attest, our proprietary dMRV (Digital Monitoring, Reporting, and Verification) system that integrates industrial biochar and biogas production into global agrifood supply chains. You'll work on tamper-proof digital infrastructure and high-frequency remote monitoring to scale carbon removal across the Global South, ensuring institutional-grade carbon credits move from sequestration data ingestion through permanent retirement with full compliance and transparency.

What you'll do

• Develop and maintain the smart contract suite for Project Attest, with a focus on ERC-721 and ERC-1155 standards and upgradeable contract patterns (UUPS/Transparent)
• Architect the lifecycle of "Investment Grade" credits, from initial sequestration data ingestion to permanent retirement, ensuring compliance with leading registry methodologies including Puro.earth and Gold Standard
• Implement the logic for Arukah's 50% gross carbon revenue allocation, building the rails that ensure transparent, auditable disbursement to participating smallholder farmers and agricultural partners
• Build secure adapters and relayers that synchronize on-chain state with global carbon registries and Singapore's Article 6-aligned trading hubs
• Handle off-chain data ingestion from KMS-signed IoT payloads or AI inference results, and verify it on-chain via Oracle logic or Merkle Proofs

What you bring

• Expert proficiency in Solidity (EVM) with deep understanding of ERC-721 and ERC-1155 standards
• Experience successfully leading smart contracts through Tier-1 audits and a security-first mindset
• Strong knowledge of role-based access control (RBAC) in institutional finance contexts
• Strong command of Node.js and TypeScript
• Experience with PostgreSQL
• Experience handling off-chain data ingestion and on-chain verification patterns

Nice to have

• Familiarity with the CosmWasm/Provenance ecosystem or Polygon CDK, reflecting Arukah's multi-chain approach to RWA infrastructure

About Arukah Capital

Arukah Capital is scaling gigaton-scale carbon removal in the Global South by integrating industrial biochar and biogas production into agrifood supply chains. The company operates Southeast Asia's largest biochar plant and has achieved formal digital MRV integration with global registries. Arukah shares 50% of gross carbon credit revenues directly with smallholder farmers, combining advanced technology with an equitable business model.