Senior Ledger Architect: Cross-Chain Interop

Hydra X; Singapore; On-site; SGD 180,000 - 280,000; Full time

Job summary

Hydra X is building institutional-grade digital asset infrastructure. We seek a Blockchain Specialist to own ledger-layer design across public and permissioned networks, including Canton and EVM-based chains.

You will oversee instrument lifecycles on-chain, interoperability, and node operations while coordinating with engineering and client solutions teams. The role demands eight+ years in software engineering with distributed ledgers, plus hands-on experience with multiple ledger families and

Qualifications

• Eight+ years in software engineering with at least four designing or building on distributed ledgers in production.
• Experience with more than one ledger family, such as EVM-based networks, Canton, Corda or Hyperledger Fabric.
• Written and reviewed production smart contracts in Solidity, Daml or Rust.
• Designed or built asset movement or settlement across ledgers for interoperability.
• Understand private keys, HSM and MPC custody models, and signing flows.
• Understand how nodes and validators are run, upgraded and monitored in production.
• Experience with Canton and Daml, including validator nodes and party-to-party workflows.

Responsibilities

• Own ledger-layer design across Hydra X's networks: model instruments and lifecycle events on-chain.
• Assess ledger networks for client deployments, advising on trade-offs and regulatory fit.
• Design interoperability between ledgers for cross-ledger settlement and asset movement.
• Set operating model for Hydra X's nodes and validators, across setups.
• Track token standards and interoperability work, recommending adoptions.
• Set smart contract standards and review code across regional engineering teams.
• Collaborate with Engineering to keep ledger decisions aligned with the system.

Skills

Ledger experience

Multiple ledger families

Smart contracts

Interoperability

Wallets and keys

Node operations

Canton and Daml

Tools

Java

Scala

Go

TypeScript

Python

Job description

Hydra X is building institutional-grade digital asset infrastructure. We seek a Blockchain Specialist to own ledger-layer design across public and permissioned networks, including Canton and EVM-based chains.

You will oversee instrument lifecycles on-chain, interoperability, and node operations while coordinating with engineering and client solutions teams. The role demands eight+ years in software engineering with distributed ledgers, plus hands-on experience with multiple ledger families and