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Internship Full Stack Blockchain Developer Jobs in Dunellen, NJ

Fynbosys Inc

Blockchain Developer

Jersey City, NJ · On-site

$54.75 - $70.75/hr

Blockchain Developer Location: 388 Greenwich Street, New York, NY 10013 / 480 Washington Boulevard ... Help identify and resolve technical issues across the Web3 stack, escalating where appropriate to ...

TekShapers

Blockchain Developer

Jersey City, NJ · On-site

Job Title - Blockchain Developer Location - Jersey City, NJ or NYC, NY Duration- Fulltime Experience level-- 7+ Years of exp Mandatory Skills : Web3 and blockchain, Java/Spring, Node.js, or ...

New

TMS

Blockchain Developer

Edison, NJ · Remote

$90 - $95/hr

Role: Blockchain Developer (DeFi and Cryptography) Location: NC (Remote) Duration: 12+ Months ... As a specialist in DeFi and Cryptography, you will take ownership of the full development lifecycle ...

TecTammina

Full Stack Web Developers

New York, NY

$90K - $150K/yr

Full Stack Web Developers Industry:- Fintech (Startups in Silicon Alley) Location: NYC Salary range ... edge Blockchain technology for the Capital Markets space. They are looking for focused and ...

TecTammina

Full Stack Web Developers

New York, NY · On-site

$90K - $150K/yr

Full Stack Web Developers Industry:- Fintech (Startups in Silicon Alley) Location: NYC Salary range ... edge Blockchain technology for the Capital Markets space. They are looking for focused and ...

De Circle

Cybrid - Full Stack Engineer

New York, NY · On-site +1

$120K - $140K/yr

We bridge the gap between traditional financial rails and blockchain-native payments, helping ... The Opportunity We're expanding rapidly and looking for a Full Stack Engineer to join our growing ...

OpenSea

Full-Stack Software Engineer

New York, NY · On-site +1

An inside view in the evolving blockchain industry and connections to the SF crypto startup ... Requirements: * 2+ years experience with full-stack web development * Fast learner * Comfortable ...

OpenSea

Full-Stack Software Engineer

New York, NY

An inside view in the evolving blockchain industry and connections to the SF crypto startup ... Requirements: * 2+ years experience with full-stack web development * Fast learner * Comfortable ...

N1

Software Engineer (Full Stack)

New York, NY · On-site

$100K - $180K/yr

N1 is the first hyper-performant and horizontally scalable blockchain network designed to enable ... We are seeking a Software Engineer, Full-Stack to join our engineering team full-time. This role ...

MLabs

Senior Full Stack Engineer

Jersey City, NJ · Remote

$175K - $225K/yr

Senior Full Stack Engineer Location: Jersey City, United States (Hybrid) Hybrid | Full-time ... Hands-on experience in the blockchain/crypto space (e.g., on-chain libraries, blockchain ...

MLabs

Senior Full Stack Engineer

Jersey City, NJ · On-site

$175K - $225K/yr

Senior Full Stack Engineer Location: Jersey City, United States (Hybrid) Hybrid | Full-time ... Hands-on experience in the blockchain/crypto space (e.g., on-chain libraries, blockchain ...

MLabs

Senior Full Stack Engineer

Jersey City, NJ · On-site

$175K - $225K/yr

Senior Full Stack Engineer Location: Jersey City, United States (Hybrid) Hybrid Full-time ... Hands-on experience in the blockchain/crypto space (e.g., on-chain libraries, blockchain ...

MLabs

Senior Full Stack Engineer (Platform)

New York, NY · On-site +1

$144K - $164K/yr

Senior Full Stack Engineer - (Platform) Location :Remote - Preference for NYC - Or Remote USA OR ... modern DevOps workflows. * Interest in or curiosity about DeFi and blockchain technologies.

MLabs

Senior Full Stack Engineer (Platform)

New York, NY · On-site +1

$144K - $164K/yr

Senior Full Stack Engineer - (Platform) Location :Remote - Preference for NYC - Or Remote USA OR ... modern DevOps workflows. * Interest in or curiosity about DeFi and blockchain technologies.

MLabs

Senior Full Stack Engineer (Platform)

New York, NY · Remote

$144K - $164K/yr

Senior Full Stack Engineer - (Platform) Location :Remote - Preference for NYC - Or Remote USA OR ... modern DevOps workflows. * Interest in or curiosity about DeFi and blockchain technologies.

Next Step Systems

Full Stack Developer

Weehawken, NJ · On-site

Full Stack Developer, Weehawken, NJ Have 2 openings for the Full Stack Developer opening. These are 12 month contracts. These positions are not open for Sponsorship. US Citizen/Green Card Holder only ...

Next Step Systems

Full Stack Developer

New York, NY · On-site

Full Stack Developer, New York City, NY Have 2 openings. These Full Stack Developer positions are 12 month contracts. These positions are not open for Sponsorship. US Citizen/Green Card Holder only ...

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All JobsFull Stack Blockchain Developer JobsInternship Full Stack Blockchain Developer JobsInternship Full Stack Blockchain Developer Jobs in Dunellen, NJ

Internship Full Stack Blockchain Developer information

See Dunellen, NJ salary details

$25

$62

$90

How much do internship full stack blockchain developer jobs pay per hour?

As of Jul 29, 2026, the average hourly pay for internship full stack blockchain developer in Dunellen, NJ is $62.45, according to ZipRecruiter salary data. Most workers in this role earn between $51.92 and $71.97 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Internship Full Stack Blockchain Developer, and why are they important?

To thrive as an Internship Full Stack Blockchain Developer, you need a solid understanding of programming languages (such as JavaScript, Python, or Solidity), web development fundamentals, and basic blockchain concepts, often supported by coursework or personal projects. Familiarity with blockchain platforms like Ethereum, smart contract development tools (e.g., Truffle, Hardhat), version control systems like Git, and decentralized application (dApp) frameworks is highly beneficial. Strong problem-solving, collaboration, and willingness to learn new technologies are standout soft skills in this role. These capabilities are important to effectively build, debug, and deploy secure blockchain applications while adapting to the evolving landscape of blockchain technology.

What is the difference between Internship Full Stack Blockchain Developer vs Blockchain Developer?

AspectInternship Full Stack Blockchain DeveloperBlockchain Developer
Experience LevelEntry-level, internship positionMid to senior level, full-time role
CredentialsLimited or no professional experience, often students or recent graduatesRelevant degrees, certifications, and professional experience
Work EnvironmentStartups, tech companies, or blockchain projects, often in a learning capacityEstablished companies, blockchain firms, or R&D teams
ResponsibilitiesAssisting in development tasks, learning blockchain tech, supporting senior developersDesigning, developing, and maintaining blockchain applications and smart contracts

The main difference between an Internship Full Stack Blockchain Developer and a Blockchain Developer lies in experience, responsibilities, and career stage. Internships are designed for learners gaining foundational skills, while Blockchain Developers are experienced professionals handling complex projects.

What types of projects and technologies can an Internship Full Stack Blockchain Developer expect to work on during their internship?

As an Internship Full Stack Blockchain Developer, you can expect to work on a variety of projects that combine both front-end and back-end development with blockchain technologies. Typical tasks may include building decentralized applications (dApps), integrating smart contracts using platforms like Ethereum or Hyperledger, and connecting blockchain nodes to web interfaces. You will likely collaborate with senior developers, UI/UX designers, and QA testers in an agile team setting. This role provides hands-on experience with modern web frameworks and blockchain protocols, which is highly valuable for future career growth in the industry.

What does an Internship Full Stack Blockchain Developer do?

An Internship Full Stack Blockchain Developer assists in designing, developing, and maintaining blockchain-based applications, working on both the front-end and back-end components. They typically help build user interfaces, interact with smart contracts, and integrate blockchain technologies with web or mobile platforms. Interns collaborate with senior developers to gain hands-on experience with blockchain protocols, decentralized applications (dApps), and tools like Solidity, Web3.js, and Node.js. This role helps interns develop a strong understanding of both blockchain fundamentals and full stack development.
What cities near Dunellen, NJ are hiring for Internship Full Stack Blockchain Developer jobs? Cities near Dunellen, NJ with the most Internship Full Stack Blockchain Developer job openings:
Internship Full Stack Blockchain Developer jobs near you
Infographic showing various Internship Full Stack Blockchain Developer job openings in Dunellen, NJ as of July 2026, with employment types broken down into 91% Full Time, 5% Part Time, 3% Contract, and 1% Nights. Highlights an 74% Physical, 3% Hybrid, and 23% Remote job distribution, with an average salary of $129,904 per year, or $62.5 per hour.

Blockchain Developer

Fynbosys Inc

Jersey City, NJ • On-site

$54.75 - $70.75/hr

Other

Posted 9 days ago

Job description

Hi 

Job Description

Role: Blockchain Developer

Location: 388 Greenwich Street, New York, NY 10013 / 480 Washington Boulevard, Jersey City, NJ 07310

 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

Competencies / Skills

  • Web3 Engineering Depth: Strong command of the Web3 technology stack — from smart contract development to on-chain/off-chain integration patterns and blockchain node interaction
  • Backend Engineering Fundamentals: Solid grounding in enterprise software engineering — API design, microservices, data structures, algorithms, and design patterns
  • Security Mindset: Awareness of common smart contract vulnerabilities (reentrancy, front-running, integer overflow, etc.) and best practices for secure on-chain development
  • Curiosity & Adaptability: Genuine enthusiasm for the Web3 ecosystem and the ability to rapidly learn and apply new protocols, standards, and tooling
  • Collaborative Spirit: Strong team player who communicates clearly and constructively with engineers, architects, and non-technical stakeholders
  • Delivery Orientation: Ability to manage personal delivery commitments, prioritize effectively, and produce high-quality output within sprint cycles
  • Attention to Detail: Rigorous approach to testing, code quality, and documentation — particularly important given the immutable nature of on-chain deployments
  • Tooling Proficiency: Working knowledge of engineering tools including Git, Jira, Jenkins, Hardhat/Foundry, Docker, Helm, and observability platforms

Apply