Design and operate secure blockchain systems that handle customer assets
Own on-premises custody architecture, including HSM-backed key management, transaction signing, access controls, redundancy, backups, and disaster recovery
Lead custody integrations and migrations while maintaining security and transaction continuity
Develop, deploy, and maintain production-grade smart contracts and DEX integrations
Build multi-chain transaction infrastructure across EVM-compatible networks, Solana, and other non-EVM ecosystems
Build and operate RPC integrations, blockchain nodes, indexers, reorg-aware chain listeners, and on-chain data pipelines
Own the transaction lifecycle from policy checks and signing through confirmation, reconciliation, and recovery
Establish strong practices for observability, incident response, operational security, and failure recovery
Work closely with product, security, and engineering teams to deliver reliable financial infrastructure
Strong software engineering experience building and operating critical production systems, ideally in financial services, digital assets, brokerage, or exchange environments
Hands-on experience with RPC integrations, node operations, indexers, chain listeners, wallets, custody systems, and transaction signing
Experience designing, operating, or migrating on-premises custody infrastructure using HSMs
Strong knowledge of key lifecycle management, cryptographic signing, access controls, backup strategies, and disaster recovery
Production experience across both EVM-compatible and non-EVM networks, ideally including Solana
Experience developing and operating smart contracts; strong Solidity knowledge is expected, while Rust or Solana development experience is valuable
Experience integrating DEXs, DeFi protocols, or other on-chain financial workflows
Understanding of node synchronization, RPC reliability, transaction models, finality, reorg handling, backfills, fees, and network-specific failure scenarios
Knowledge of distributed systems, asynchronous processing, idempotency, data consistency, and observability
Ability to independently own complex, security-sensitive projects from design through production
Job details are sourced from the employer's original posting.
Open job postingAbout the company
Midas is a financial technology company that provides a platform for managing and optimizing digital assets.