Blockchain Specialist

Hydrax Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Hydra X is building institutional-grade infrastructure for digital assets. We seek a Blockchain Specialist to own ledger-layer design across public and permissioned networks, covering Canton, EVM-based networks and token movement between ledgers.

Strong capital markets knowledge and experience with Daml and Canton are a plus. You will drive interoperability, validate node operations, and align smart contracts with enterprise-scale requirements while collaborating with our engineering teams to

Qualifications

• 8+ years in software engineering with distributed ledgers in production.
• Hands-on experience with more than one ledger family (e.g., EVM, Canton, Corda, Hyperledger).
• Smart contracts written/reviewed in Solidity, Daml or Rust for production use.
• Knowledge of private keys, HSM and MPC custody models; cross-ledger movement.

Responsibilities

• Own ledger-layer design across Hydra X networks: model lifecycle events on-chain.
• Assess ledger networks for client deployments; advise on trade-offs in privacy, finality, governance, and security.
• Design interoperability between ledgers for cross-ledger settlement and asset movement.
• Set operating model for Hydra X's nodes/validators across deployments.
• Track token standards and interoperability work; recommend adopted standards.
• Set smart contract standards and review contract code across teams.
• Collaborate with Engineering to keep ledger decisions aligned with the system.

Skills

Ledger design

Distributed ledgers

Interoperability

Smart contracts

Wallets and keys

Node operations

Canton Daml

Tools

Solidity

Daml

Rust

Java

Scala

Go

TypeScript

Python

Job description

Hydra X is building institutional-grade infrastructure across custody, exchange, tokenisation and digital asset networks. We are looking for aBlockchain Specialistto own the design of Hydra X’s ledger layer across the public and permissioned networks our clients use, and the connections between them. The role would cover the ledger networks Hydra X supports today and those it may support as client demand changes. A current priority is the Canton Network. The role also covers EVM-based and other networks, and how assets move between them. Strong capital markets knowledge is essential. Experience with Daml and Canton is a strong plus.

Responsibilities

• Own ledger-layer design across the networks Hydra X supports: how instruments and their lifecycle events (issuance, transfers, corporate actions, settlement) are modelled on-chain.
• Assess ledger networks and protocols for client deployments, covering privacy, finality, governance, key management and regulatory fit, and advise Client Solutions, Sales Engineering and clients on the trade-offs.
• Design interoperability between ledgers, including Canton and EVM-based networks, for cross-ledger settlement and asset movement (DvP, PvP).
• Set the operating model for Hydra X's nodes and validators, including Canton validator nodes across self-operated, dedicated and shared set-ups.
• Track token standards and industry interoperability work, and recommend what Hydra X adopts.
• Set smart contract standards and review contract code across our regional engineering teams.
• Work with our Engineering team to keep ledger decisions consistent with the wider system.

Blockchain / Digital Assets

• Ledger experience You have eight or more years in software engineering, including at least four designing or building on distributed ledgers in production.
• Multiple ledger families You have hands-on experience with more than one ledger family, such as EVM-based networks, Canton, Corda or Hyperledger Fabric.
• Smart contracts You have written and reviewed production smart contracts in one or more languages, such as Solidity, Daml or Rust.
• Interoperability You have designed or built asset movement or settlement across ledgers.
• Wallets and keys You understand private keys, HSM and multi-party computation (MPC) custody models, and signing flows.
• Node operations You understand how nodes and validators are run, upgraded and monitored in production.
• Canton and Daml Experience with Daml and the Canton Network, including validator nodes, synchronizers and party-to-party workflows, is a strong plus.

Capital Markets

• Instrument lifecycle You know how securities are issued, settled, held and serviced, including corporate actions.
• Regulated environments You understand the controls banks, custodians and regulators expect of digital asset infrastructure.

Good to have

• Contributions to open-source ledger projects or industry working groups, such as Canton Network or Ethereum token standards.
• Experience on tokenisation programmes at banks, exchanges or central securities depositories.
• Familiarity with MAS Project Guardian or similar industry interoperability initiatives.
• Backend experience in Java, Scala, Go, TypeScript or Python.

Why Join Us?

• Own ledger design for regulated infrastructure that financial institutions use in live markets.
• Work across public and permissioned networks, including live Canton services: validator node operations, Metra and Canton Coin custody.
• Work on cross-ledger settlement for institutional clients.
• Join a team where ledger decisions are weighed against security, regulatory expectations and production readiness.