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Temporary Full Stack Blockchain Developer Jobs in New Jersey

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 ...

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 ...

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 ...

Navtech, Inc.

Full Stack Developer

Livingston, NJ · On-site

I have an opportunity for "Full Stack Developer" and looking for a candidate who can join Immediately if you are interested reply me with your updated resume or consultant's contact details and if ...

Lorven Technologies

Full Stack Developer Location: Hanover, NJ * Bachelor's degree in related field. * Design develop and maintain end to end web applications frontend backend * Build responsive user friendly UI ...

DHD Consulting

Full Stack Developer

Secaucus, NJ

Full Stack Developer We are looking for a full stack developer who is eager to work with cutting-edge technologies and architectures in a forward-thinking company that consistently pushes the limits.

Staffingine LLC

Net Full Stack Developer

Newark, NJ · On-site

$58 - $68/hr

Job Title: .Net Full Stack Developer Job Location: Newark, NJ Job Type: Contract * Design, develop, and maintain full-stack web applications using .NET technologies (e.g., C#, ASP.NET Core, .NET ...

Stratacent

Full Stack Developer

Jersey City, NJ · On-site

Looking for a strong full stack application developer to build and integrate custom web applications. This role involves user interfaces for scalable web based solutions using Angular frame work ...

Stratacent

Full Stack Developer

Jersey City, NJ · Hybrid

Looking for a strong full stack application developer to build and integrate custom web applications. This role involves user interfaces for scalable web based solutions using Angular frame work ...

CGI Inc.

AI Full Stack Developer

New Brunswick, NJ · On-site

AI Full Stack Developer Category: Software Development/ Engineering Main location: United States, New Jersey, New Brunswick Position ID:J0726-1342 Employment Type: Full Time U.S. - What we do matters ...

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All JobsFull Stack Blockchain Developer JobsTemporary Full Stack Blockchain Developer JobsTemporary Full Stack Blockchain Developer Jobs in New Jersey

Temporary Full Stack Blockchain Developer information

What is the difference between Temporary Full Stack Blockchain Developer vs Blockchain Software Engineer?

AspectTemporary Full Stack Blockchain DeveloperBlockchain Software Engineer
CredentialsRelevant coding certifications, blockchain coursesAdvanced degrees in computer science or related fields, blockchain certifications
Work EnvironmentProject-based, short-term contracts, startups, tech firmsLong-term projects, R&D teams, tech companies
Industry UsageFrequent in blockchain startups, consulting firmsEstablished tech companies, blockchain development firms
Search & ComparisonOften compared for contract roles, project scopeCompared for full-time roles, technical depth

In summary, a Temporary Full Stack Blockchain Developer typically works on short-term projects with a focus on full-stack development, while a Blockchain Software Engineer often holds a more specialized, long-term role involving deeper technical expertise in blockchain systems.

What are the most commonly searched types of Full Stack Blockchain Developer jobs in New Jersey? The most popular types of Full Stack Blockchain Developer jobs in New Jersey are:
What are popular job titles related to Temporary Full Stack Blockchain Developer jobs in New Jersey? For Temporary Full Stack Blockchain Developer jobs in New Jersey, the most frequently searched job titles are:
What job categories do people searching Temporary Full Stack Blockchain Developer jobs in New Jersey look for? The top searched job categories for Temporary Full Stack Blockchain Developer jobs in New Jersey are:
What cities in New Jersey are hiring for Temporary Full Stack Blockchain Developer jobs? Cities in New Jersey with the most Temporary Full Stack Blockchain Developer job openings:
Temporary Full Stack Blockchain Developer jobs near you
Infographic showing various Temporary Full Stack Blockchain Developer job openings in New Jersey as of July 2026, with employment types broken down into 95% Full Time, 1% Part Time, 2% Contract, and 2% Nights. Highlights an 69% Physical, 3% Hybrid, and 28% Remote job distribution.

Blockchain Developer

Fynbosys Inc

Jersey City, NJ • On-site

$54.75 - $70.75/hr

Other

Posted 10 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

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