Demo

Senior Blockchain Developer (Need LOCAL)

3Core Systems, Inc
Chicago, IL Contractor
POSTED ON 6/17/2026
AVAILABLE BEFORE 7/17/2026

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources.

3Core Systems is looking for Senior Blockchain Developer for one of our clients in Chicago, IL

Role: Senior Blockchain Developer

Location: Chicago, IL (Hybrid)

Contract: 13 Months

Job Description: Must Have Skills/Attributes: Cryptography, GoLang, Java, NodeJs, Python, SDLC, Spring Boot

Experience Desired: Java SpringBoot experience (5 yrs); Experience working as a Blockchain Developer or a similar role in the IT department (3 yrs); Experience leading to a complete understanding of the software development lifecycle (10 yrs); Expertise in building robust systems (resiliency, fault tolerance, scalability) at scale (10 yrs); Code in various languages such as Solidity, Java, NodeJs, Python, GoLang, Rust and others (3 yrs); Experience in working with various types of cryptography to secure data (3 yrs); Outstanding understanding of data structures and algorithms (3 yrs)

Education: Bachelor s degree in Information Technology or Computer Science

Job Description: Required Qualifications:

  • Java Springboot experience is a must
  • Experience working as a Blockchain Developer or a similar role in the IT department
  • Experience leading to a complete understanding of the software development lifecycle
  • Expertise in building robust systems (resiliency, fault tolerance, scalability) at scale
  • Demonstrate excellent ability to code in various languages such as Solidity, Java, NodeJs, Python, GoLang, Rust and others
  • Experience in working with various types of cryptography to secure data
  • Outstanding understanding of data structures and algorithms
  • Knowledge of various cybersecurity guidelines and protocols
  • Strong understanding and knowledge of various kinds of cyberattacks
  • Ability to work in a team or individually as and when required
  • Possess excellent communication skills
  • Have keen eye for details
  • Manage multiple projects simultaneously

Preferred Qualifications:

  • Experience working with Cloud platforms such as MS Azure, AWS preferred

Senior Blockchain Developer Summary:

  • As a Blockchain Developer, you are responsible for developing application features and interfaces using blockchain technology
  • You will be also responsible for designing and developing a system that is secure, reliable and scalable
  • Your primary goal for this job role will be designing, implementing, and administering a secure blockchain network
  • You should be highly knowledgeable about various blockchain technologies
  • You should also have an excellent understanding of cryptography and its uses in the blockchain network
  • You should be knowledgeable about packing & deploying apps via CI/CD pipelines to a cloud platform

Job Responsibilities:

  • Architect, develop and deploy decentralized applications providing permissioned access to data at both the smart contract and protocol level
  • Develop & Interacting with Smart Contracts implemented on most common Blockchain/DLT technology platforms
  • Oracle development (connecting "off-chain" data to the blockchain)
  • Construct integration libraries to interface with our server and APIs
  • Collaborate closely with the rest of the engineering team to review application requirements, help plan implementation details and estimate delivery timelines
  • Provide mentorship to your peers in the engineering team through education on best practices
  • Preparing documentation on the blockchain development processes
  • Adhering to all the rules and regulations of data protection for digital payments
  • Staying updated with the latest crypto technologies for data protection

Regards, Recruiting Team 3Core Systems Inc 9101 Burnet Road, Suite 207, Austin, TX 78758

Hourly Wage Estimation for Senior Blockchain Developer (Need LOCAL) in Chicago, IL
$47.00 to $59.00
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