Blockchain Engineer – Tokenization & Digital Assets

Iris Software Inc.

Jersey City (NJ)

On-site

USD 150,000 - 190,000

Full time

5 days ago

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Job summary

Iris Software Inc. in Jersey City, with teams across the US, is seeking a Blockchain Engineer (Digital Assets & Tokenization) to design and build reusable Web3 platform services for tokenization, blockchain connectivity, wallet integration, and token lifecycle management.

You will develop backend services interfacing with blockchain nodes, smart contracts, custody platforms, and signing systems, and implement security best practices to deliver production-ready enterprise digital asset solutions.

Qualifications

Experience designing Web3 platforms and tokenization solutions.
Proficiency in building scalable backend services for blockchain ecosystems.

Responsibilities

Design and build reusable Web3 platform services for tokenization, blockchain connectivity, wallet integration, transaction processing, event ingestion, indexing, and token lifecycle management.
Develop backend services that interact with blockchain nodes, smart contracts, custody platforms, signing systems, and off-chain enterprise applications.
Build common blockchain abstraction layers supporting Ethereum/EVM, Hyperledger Besu, Canton/Daml, Layer 2 solutions, permissioned networks, and consortium blockchains.
Implement blockchain integrations using JSON-RPC, WebSocket subscriptions, smart contract queries, transaction submission, status tracking, and event log processing.
Engineer and maintain connectivity solutions for Hyperledger Besu, Ethereum-compatible networks, and permissioned EVM-based blockchain ecosystems.
Support Canton/Daml-based blockchain workflows including participant connectivity, transaction authorization, application lifecycle management, and workflow integration.
Manage Daml application packages, including deployment, versioning, validation, installation, and production enablement processes.
Design, develop, integrate, and review smart contracts for tokenized assets, programmable workflows, and digital asset platforms.
Build smart contract interaction frameworks for ABI encoding/decoding, transaction simulation, calldata generation, event processing, and contract state management.
Establish engineering standards for smart contract development, testing, deployment, version control, governance, rollback planning, and production releases.
Implement smart contract security best practices including threat modeling, static code analysis, fuzz testing, invariant testing, and secure deployment pipelines.
Integrate institutional wallet, custody, signing, and authorization platforms to support blockchain-based asset management and transaction workflows.
Design transaction orchestration services covering validation, approval routing, policy enforcement, signing, submission, confirmation tracking, exception handling, and audit logging.
Develop and maintain address management, transaction limit controls, allowlists, approval workflows, signing policies, and operational governance mechanisms.
Collaborate with platform, infrastructure, security, and operations teams to design scalable, secure, and production-ready Web3 solutions for enterprise digital asset and tokenization platforms.