Freelance Remote Blockchain Developer Jobs in Washington, DC

Data Management Services, Inc. (DMS International) is a professional services firm headquartered in Silver Spring, Maryland, with work locations throughout the continental United States. We prepare managers and executives to lead their workforce through customized learning solutions that drive the standards of an ever-changing world. We build creative, unique, and engaging learning experiences for commercial, civilian and defense organizations. Our high-caliber talent, delivery methodology and innovative solutions contribute to preparing a workforce that is ready for the future. You can join us on this journey to bring efficiency and creativity to our customers.

At DMS, we are the catalyst for effective workforce transformation. To achieve this, we hire professionals who take pride in doing quality work and who are excited about contributing to the professional development of tomorrow's leaders.

DMS seeks candidates that possess and display the attributes that reflect our Core Values of:

• Quality in delivering solutions
• Leadership
• Teamwork
• Innovation
• Integrity in conduct
• Responsiveness to our customer's mission.

DMS International is an Equal Opportunity Employer. We make employment decisions without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, pregnancy, childbirth, lactation and related medical conditions, genetic factors, military/veteran status, or other characteristics protected by law. We encourage individuals from all backgrounds to apply.

Job Description
DMS is seeking a Blockchain Application Developer Intern to join our technical team. The intern will support the design, development, testing, and implementation of blockchain-enabled applications and digital solutions. This position will provide hands-on experience with blockchain, Web3, distributed ledger technologies, smart contracts, APIs, and modern software development practices.

Responsibilities

• Assist with the design and development of blockchain-based applications and decentralized applications (dApps)
  Support the development, testing, and deployment of smart contracts using platforms such as Ethereum, Polygon, Hyperledger, or similar technologies
• Assist with integrating blockchain services with web and mobile applications through APIs and software development kits
  Support applications involving digital identity, secure document verification, supply-chain traceability, asset tokenization, digital payments, and records management
• Assist with front-end and back-end development for blockchain applications
• Participate in code reviews, debugging, testing, and application security activities
• Assist with blockchain networks, wallets, nodes, and development environments
• Research emerging blockchain technologies, decentralized identity, interoperability standards, and Web3 architectures
• Prepare technical documentation, system diagrams, prototypes, and demonstrations
• Collaborate with software developers, data scientists, AI engineers, designers, and subject matter experts

Required Skills & Experience

• Basic knowledge of software development and programming principles
• Familiarity with programming languages such as JavaScript/TypeScript, Python, Java, Solidity, or similar
• Familiarity with blockchain technologies such as Ethereum, Solidity, Web3.js, Ethers.js, Hardhat, Remix, Hyperledger, or similar platforms
• Knowledge of web development technologies such as React, Node.js, REST APIs, HTML/CSS is a plus
• Familiarity with Git/GitHub, Docker, Visual Studio Code, Linux environments, and/or SQL or NoSQL databases is a plus
• Strong analytical, problem-solving, and research skills
• Strong attention to security, data integrity, and application reliability
• Ability to learn new technologies quickly and work independently and collaboratively
• Experience through coursework, personal projects, hackathons, research, or internships involving blockchain, smart contracts, decentralized applications, or full-stack development is preferred
• GitHub portfolio or sample blockchain project is encouraged

Education

• Currently pursuing or recently completed a Bachelor's or Master's degree in Computer Science, Software Engineering, Information Technology, Cybersecurity, Computer Engineering, Information Systems, Data Science, or a related technical field

Position Type

• Part-time Internship

Location

• Remote