Blockchain Developer / Block chain Engineer

Full Timejunior

USPosted 6 days ago

Role Overview

JC CORPORATIONS is hiring a entry-level Blockchain Developer / Block chain Engineer. This is a full-time role in US. Part of JC CORPORATIONS's Lifecycle hiring, posted 6 days ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.

Salary Context

Salary is not disclosed in this posting. Market median for Junior-level Lifecycle roles is $89k-$134k (based on 115 comparable listings). Many employers share specifics during the interview process or after an initial screen.

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JavaNode.jsSpringDockerKubernetesKafkaRabbitMQAgile

Job description

Job Summary

Key Responsibilities

Design, develop, and deploy Web3 components and integrations for Citi's Digital Asset Platform, including smart contracts, on-chain event listeners, wallet integrations, and blockchain protocol connectors
Build and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Corda, or equivalent)
Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiency
Integrate Web3 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/or Node.js backend services
Implement asynchronous, event-driven architectures to handle on-chain events, transaction lifecycle management, and blockchain state synchronization
Collaborate with architects and senior engineers to contribute to the design of scalable, secure, and resilient Web3 infrastructure
Participate in code reviews, providing and receiving constructive technical feedback to maintain high engineering standards
Support the integration of digital asset custody solutions, tokenization frameworks, and DeFi/TradFi bridging components
Contribute to technical documentation, including smart contract specifications, integration guides, and architecture notes
Stay current with the rapidly evolving Web3 ecosystem tracking protocol upgrades, new token standards, Layer 2 solutions, and emerging tooling relevant to institutional use cases
Work within Agile/Scrum frameworks, participating in sprint planning, stand-ups, and retrospectives within a distributed global team
Help identify and resolve technical issues across the Web3 stack, escalating where appropriate to ensure delivery quality and timelines

Qualifications / Experience

Bachelor's degree in Computer Science, Engineering, or a related discipline; MS is a plus
8+ years of overall software engineering experience, with a strong backend development foundation
2 to 4 years of hands-on experience in Web3 and blockchain application development, including smart contract development and blockchain protocol integration
3 to 5 years of experience with backend development using Java/Spring, Node.js, or equivalent enterprise frameworks
Proficiency in Solidity smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices
Hands-on experience with Web3 libraries such as Web3J, Web3JS, Ethers.js, or Viem
Solid understanding of blockchain fundamentals consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management
Experience with token standards (ERC-20, ERC-721, ERC-1155, ERC-3525, or equivalent) and tokenization patterns
Familiarity with permissioned blockchain networks (Hyperledger Besu, Fabric, Corda, or R3) is a strong plus
Experience with asynchronous programming, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent)
Familiarity with DevOps practices, containerization (Docker, Kubernetes), and CI/CD pipelines
Understanding of cryptographic concepts digital signatures, hashing, PKI, and secure key management as applied to blockchain systems
Exposure to Layer 2 scaling solutions (Polygon, Optimism, zkSync, etc.) and cross-chain interoperability protocols is a plus
Experience in financial services or regulated industries is a plus
Familiarity with Agile/Scrum methodologies and distributed team collaboration tools

About JC CORPORATIONS

JC CORPORATIONS

LifecycleOn-site

1 other open role at JC CORPORATIONS on TryApplyNow.

View all 2 roles at JC CORPORATIONS

Frequently Asked Questions

How do I apply for the Blockchain Developer / Block chain Engineer position at JC CORPORATIONS?

Use the Apply button above to submit your application directly to JC CORPORATIONS. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Blockchain Developer / Block chain Engineer position at JC CORPORATIONS located?

This position is based in US. JC CORPORATIONS has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Blockchain Developer / Block chain Engineer at JC CORPORATIONS earn?

JC CORPORATIONS has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Blockchain Developer / Block chain Engineer role at JC CORPORATIONS posted?

This role was posted on July 17, 2026 (6 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.

Is the Blockchain Developer / Block chain Engineer role at JC CORPORATIONS entry-level?

Yes. This is an entry-level position. Strong candidates typically have 0-2 years of relevant work experience, internships, or significant project work. Read the full description for any specific qualification requirements JC CORPORATIONS has listed.