> Markdown version of [/jobs/ext/2038785-blockchain-web3-java-engineer-digital-assets-platform-vp](https://www.wearedevelopers.com/jobs/ext/2038785-blockchain-web3-java-engineer-digital-assets-platform-vp). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Blockchain/Web3 Java Engineer - Digital Assets Platform - VP - **Company:** Citigroup, Inc. - **Location:** New York, NY, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Code Review, Collaborative Software, Continuous Integration, DevOps, Digital Assets, Digital Signature, Key Management, Node.Js, Public Key Infrastructure, Scrum Methodology, Queueing Systems, RabbitMQ, Blockchain, Software Engineering, Systems Integration, Backend, Event Driven Architecture, Hyperledger, Kubernetes, Information Technology, Ethereum, Solidity, Apache Kafka, Web3.js, Asynchronous Programming, Docker - **Published:** August 12, 2026 - **Apply:** https://us.experteer.com/career/view-jobs/blockchain-web3-java-engineer-digital-assets-platform-vp-new-york-ny-usa-58918261 ## About the Role Citi's focusing on security and gas efficiency * Integrate Web3 libraries and SDKs (Web3J, Web3JS, Ethers.js, Viem) into Java/Node.js backends * Implement asynchronous, event-driven architectures for on-chain events and state synchronization * Collaborate with architects and senior engineers to design scalable, secure Web3 infrastructure * Participate in code reviews to maintain high engineering standards * Support integration of digital asset custody, tokenization frameworks, and DeFi/TradFi bridging components * Contribute to technical documentation (contracts, integrations, architecture) * Stay current with Web3 ecosystem developments and relevant protocol/tooling * Work in Agile/Scrum, contributing to sprint planning and retrospectives in a distributed team * Identify and resolve technical issues across the Web3 stack and escalate as needed Tasks * Bachelor's degree in Computer Science, Engineering or related discipline; MS is a plus * 12+ years of software engineering experience aa of strong backend foundation * 3-5 years hands-on Web3 and blockchain app development (smart contracts and protocol integration) * 4-6 years backend development experience (Java/Spring, Node.js or equivalent) * Proficiency in Solidity smart contracts, testing frameworks (Hardhat, Foundry, Truffle) and security best practices * Hands-on experience with Web3 libraries (Web3J, Web3JS, Ethers.js, Viem) * Solid understanding of blockchain fundamentals (consensus, gas, wallets, key management) * Experience with token standards (ERC-20, ERC-721, ERC-1155, ERC-3525) and tokenization patterns * Familiarity with blockchain networks (Hyperledger Besu, Solana, Canton) is a strong plus * Experience with asynchronous programming, event-driven systems and message queues (Kafka, RabbitMQ) * Familiarity with DevOps, containers (Docker, Kubernetes) and CI/CD * Cryptographic concepts (digital signatures, hashing, PKI) as applied to blockchain * Exposure to Layer 2 scaling solutions and cross-chain interoperability is a plus * Experience in financial services or regulated industries is a plus * Familiarity with Agile/Scrum and distributed collaboration tools Key requirements * medical, dental & vision coverage * 401(k) with company contributions * life, accident, and disability insurance * wellness programs * paid time off including vacation and holidays * flexible/hybrid work options (implied by global team) ## Description Experteer Overview In this role you design and build Web3-native components for Citi's digital asset platform, enabling secure, scalable on-chain integration across tokenization, smart contracts, and settlement. You'll work with a global, cross-functional team to evolve the CIDAP ecosystem and bridge decentralized patterns with enterprise-grade software. The role offers exposure to cutting-edge institutional blockchain use cases and a path to shape Citi's digital finance capabilities. You will be at the forefront of a strategic platform with real business impact. Compensation / Benefits * Design, develop and deploy Web3 components and integrations for Citi's Digital Asset Platform, including smart contracts, on-chain listeners, wallet integrations, and protocol connectors * Build and maintain backend services interfacing with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Solana, Canton) * Develop, test and audit smart contracts (Solidity, DAML or equivalent) focusing on security and gas efficiency * Integrate Web3 libraries and SDKs (Web3J, Web3JS, Ethers.js, Viem) into Java/Node.js backends * Implement asynchronous, event-driven architectures for on-chain events and state synchronization * Collaborate with architects and senior engineers to design scalable, secure Web3 infrastructure * Participate in code reviews to maintain high engineering standards * Support integration of digital asset custody, tokenization frameworks, and DeFi/TradFi bridging components * Contribute to technical documentation (contracts, integrations, architecture) * Stay current with Web3 ecosystem developments and relevant protocol/tooling * Work in Agile/Scrum, contributing to sprint planning and retrospectives in a distributed team * Identify and resolve technical issues across the Web3 stack and escalate as needed Tasks * Bachelor's degree in Computer Science, Engineering or related discipline; MS is a plus * 12+ years of software engineering experience with strong backend foundation * 3-5 years hands-on Web3 and blockchain app development (smart contracts and protocol integration) * 4-6 years backend development experience (Java/Spring, Node.js or equivalent) * Proficiency in Solidity smart contracts, testing frameworks (Hardhat, Foundry, Truffle) and security best practices * Hands-on experience with Web3 libraries (Web3J, Web3JS, Ethers.js, Viem) * Solid understanding of blockchain fundamentals (consensus, gas, wallets, key management) * Experience with token standards (ERC-20, ERC-721, ERC-1155, ERC-3525) and tokenization patterns * Familiarity with blockchain networks (Hyperledger Besu, Solana, Canton) is a strong plus * Experience with asynchronous programming, event-driven systems and message queues (Kafka, RabbitMQ) * Familiarity with DevOps, containers (Docker, Kubernetes) and CI/CD * Cryptographic concepts (digital signatures, hashing, PKI) as applied to blockchain * Exposure to Layer 2 scaling solutions and cross-chain interoperability is a plus * Experience in financial services or regulated industries is a plus * Familiarity with Agile/Scrum and distributed collaboration tools Key requirements * medical, dental & vision coverage * 401(k) with company contributions * life, accident, and disability insurance * wellness programs * paid time off including vacation and holidays * flexible/hybrid work options (implied by global team) ## Related Videos - [Smart Contract fundamentals - My first DApp](https://www.wearedevelopers.com/videos/52-smart-contract-fundamentals-my-first-dapp) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [7 tips on how to become a blockchain developer](https://www.wearedevelopers.com/magazine/53-7-tips-on-how-to-become-a-blockchain-developer) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)