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Blockchain Developer; Java Springboot

Job in Chicago, Cook County, Illinois, 60290, USA
Listing for: Judge Group, Inc.
Full Time position
Listed on 2026-06-06
Job specializations:
  • IT/Tech
    Blockchain / Web3, Cybersecurity
Salary/Wage Range or Industry Benchmark: 70 - 90 USD Hourly USD 70.00 90.00 HOUR
Job Description & How to Apply Below
Position: Blockchain Developer(Java Springboot)
Location: Chicago, IL
Salary: $70.00 USD Hourly - $90.00 USD Hourly
Description:
Our client is currently seeking a Blockchain Developer(Java Springboot)

Key Responsibilities
  • Architect, develop, and deploy decentralized applications (dApps) with permissioned access at both smart contract and protocol levels
  • Design, build, and interact with smart contracts across major blockchain/DLT platforms
  • Develop blockchain oracles to integrate off-chain data with on-chain systems
  • Build and maintain integration libraries to connect blockchain systems with backend servers and APIs
  • Collaborate with cross-functional teams to gather requirements, define architecture, and estimate delivery timelines
  • Ensure system robustness, including scalability, resiliency, and fault tolerance
  • Provide technical mentorship and promote best practices within the engineering team
  • Develop and maintain comprehensive documentation for blockchain processes and workflows
  • Ensure compliance with data protection regulations, particularly in digital payments
  • Stay updated with the latest advancements in blockchain, cryptography, and cybersecurity
Required Qualifications
  • Bachelor's degree in Computer Science, Information Technology, or a related field
  • Proven experience as a Blockchain Developer or in a similar role
  • Strong hands-on experience with Java Spring Boot (mandatory)
  • Solid understanding of the software development lifecycle (SDLC)
  • Proficiency in one or more programming languages such as Solidity, Java, Node.js, Python, Go, or Rust
  • Strong knowledge of data structures and algorithms
  • Experience with cryptographic techniques and secure system design
  • Understanding of cybersecurity principles, standards, and common attack vectors
  • Ability to design scalable, high-performance systems
  • Strong problem-solving skills and ability to work independently or within a team
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Contact:

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