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***********Client is not sponsoring any VISA*********
*********Please don't apply if you are on H1B or on OPT visa***********
Blockchain Developer – Job Description
Role Overview
We are looking for a Blockchain Java Backend Developer responsible for designing, developing, and maintaining backend services that interact with blockchain networks. The ideal candidate should have strong experience in Java backend development, distributed systems, and blockchain technologies such as Ethereum or Hyperledger Fabric.
Key Responsibilities
- Design and develop secure, scalable backend services in Java to interact with blockchain networks.
- Build RESTful APIs and microservices to support blockchain-based applications.
- Develop and integrate smart contracts using blockchain platforms such as Ethereum or Hyperledger Fabric.
- Implement transaction processing, wallet integration, and blockchain node communication.
- Ensure security, cryptography, and data integrity in blockchain applications.
- Optimize system performance for high-throughput distributed environments.
- Collaborate with frontend developers, DevOps teams, and blockchain architects.
- Write unit tests, integration tests, and documentation.
- Participate in architecture discussions and code reviews.
Required Skills & Qualifications
Technical Skills
- Strong experience with Java backend development (Java 8+).
- Experience with frameworks such as Spring Boot or Spring Framework.
- Hands-on experience with blockchain platforms like
- Ethereum
- Hyperledger Fabric
- Corda (optional).
- Experience with smart contracts (e.g., Solidity).
- Knowledge of cryptography, consensus mechanisms, and distributed ledgers.
- Experience building REST APIs and microservices.
- Familiarity with Docker, Kubernetes, and cloud platforms.
- Experience with relational or NoSQL databases.
Preferred Skills
- Experience with Web3 libraries such as Web3j.
- Knowledge of DeFi, NFTs, or token standards (ERC-20 / ERC-721).
- Experience with CI/CD pipelines and DevOps practices.
- Understanding of event-driven architecture and messaging systems.
Education
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.
How do I get a job at DeFi?
Getting a job in the DeFi (decentralized finance) industry can be a competitive process, but there are a few steps you can take to increase your chances of finding a job in this field:
- Build up your skills and knowledge: To work in DeFi, you'll likely need to have a strong understanding of blockchain technology, as well as other related technologies such as smart contracts and cryptocurrency. Consider taking online courses or earning a degree in a relevant field to build up your skills and knowledge.
- Network with industry professionals: Attend meetups and conferences related to DeFi and make connections with professionals in the industry. Networking can be a valuable way to learn about job openings and get your foot in the door at a DeFi company.
- Create a strong online presence: Many DeFi companies will look at your online presence (such as your LinkedIn profile and personal website) when considering you for a job. Make sure to showcase your skills and accomplishments online and keep your profile up to date.
- Apply for relevant job openings: Keep an eye out for job openings at DeFi companies and apply for positions that align with your skills and experience. Apply for DeFi Jobs without Experience. Tailor your resume and cover letter to the specific job you're applying for and highlight any relevant experience or skills you have.
- Consider internships or volunteer work: DeFi Internships or volunteer work can be a great way to get your foot in the door and gain valuable experience in the DeFi industry. Many companies also offer internships to students, so consider applying for an internship if you're still in school.
- Be persistent: keep trying if you don't get a job right away. It can take time to find the right opportunity, but with the right skills and determination, you can land a job in the DeFi industry.