Demo

Senior Blockchain Developer

Medinext Global LLC
Chicago, IL Contractor
POSTED ON 6/5/2026
AVAILABLE BEFORE 7/5/2026
Position Description
 
Position Title - Senior Blockchain Developer                 
Job Location - Chicago, IL, USA                 
Bill Rate Range - $100 - $105                
Estimated Duration (In Months) - 13                 
Work Model - Hybrid
Must have Skills/Attributes - Cryptography, GoLang, Java, NodeJs, Python, SDLC, Spring Boot                 
Shift - M-F First Shift
 
Must have 5 yrs of Blockchain developer experience
Must have 5 Java SpringBoot experience
Must have SDLC experience
Must be able to code in Solidity, Java, NodeJs, Python, GoLand, and Rust
Must have outstanding understanding of data structures and algorithms
 
 
Education: 
• Bachelor’s degree in Information Technology or Computer Science 
 
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

Salary : $100 - $105

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