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Core Blockchain Developer Jobs in Washington (NOW HIRING)

Circle

Staff Software Engineer

Washington, DC · On-site +1

$195K - $257K/yr

The Staff Software Engineer is responsible for extending Circle's in-house blockchain systems ... core. We consider a wide variety of elements when crafting our compensation ranges and total ...

Circle

Senior Counsel, Arc

Washington, DC · On-site +1

$230K - $297K/yr

Partner with Product, Engineering, Compliance, and Policy to shape blockchain features and smart ... Core Requirements * J.D. degree with strong academic credentials and active membership in good ...

Circle

Senior Software Engineer, Frontend

Washington, DC · On-site +1

$152K - $205K/yr

Experience with Node.js, developer platforms, SDKs, Web3 products, or blockchain technologies. Circle is on a mission to create an inclusive financial future, with transparency at our core. We ...

Circle

Senior Software Engineer

Washington, DC · On-site +1

$152K - $205K/yr

The Senior Software Engineer is responsible for extending Circle's in-house blockchain systems ... Circle is on a mission to create an inclusive financial future, with transparency at our core. We ...

VivSoft Technologies

Software Developer

Herndon, VA · Remote

These factories deliver AI/ML Applications, data science platforms, blockchain, and Microservices ... Ability to support core collaboration hours aligned to the Eastern time zone Preferred ...

Circle

Manager, Software Engineering

Washington, DC · On-site +1

$195K - $257K/yr

... and programmable blockchain infrastructure. Circle's platform includes the world's largest ... core. We consider a wide variety of elements when crafting our compensation ranges and total ...

Barrow Wise Consulting

Cybersecurity Engineer

MD · On-site

$90K - $155K/yr

Provide expertise in cryptography, including encryption, zero-knowledge proofs, blockchain, digital ... Our employees stand behind Barrow Wise's core values of integrity, quality, innovation, and ...

SZNS Solutions LLC

Cloud Engineer

Reston, VA · On-site

$58 - $77.50/hr

... blockchain, and cloud-native software application development." Role Summary The Cloud Solutions ... While you will lead the design, you remain a "builder at core," capable of initiating the ...

SZNS Solutions LLC

Cloud Engineer

Reston, VA · On-site

$58 - $77.50/hr

... blockchain, and cloud-native software application development." Role Summary The Cloud Solutions ... While you will lead the design, you remain a "builder at core," capable of initiating the ...

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All JobsCore Blockchain Developer JobsCore Blockchain Developer Jobs in Washington

Core Blockchain Developer information

What is a core blockchain developer?

Core Blockchain Developers are specialized software engineers responsible for designing, developing, and maintaining the foundational architecture of blockchain systems. They create and optimize the core protocols, consensus algorithms, and security mechanisms that enable decentralized networks to operate effectively. Unlike application developers who build on top of blockchain platforms, core developers work directly on the blockchain’s underlying infrastructure. Their work ensures the network’s efficiency, scalability, and security, making them essential for the evolution and stability of blockchain technology.

What are the key skills and qualifications needed to thrive as a core blockchain developer?

To thrive as a Core Blockchain Developer, you need deep expertise in computer science, cryptography, and distributed systems, often supported by a degree in a related field and experience with blockchain protocols. Proficiency with programming languages such as C++, Go, or Rust, as well as familiarity with blockchain frameworks and tools like Ethereum and Hyperledger, is typically required. Strong problem-solving skills, attention to detail, and effective communication are crucial soft skills for collaborating with other developers and addressing complex technical challenges. These skills ensure secure, efficient, and scalable blockchain infrastructure that meets the needs of users and organizations.

What are some common challenges core blockchain developers face when working on protocol-level changes?

Core Blockchain Developers often encounter challenges such as ensuring backward compatibility during protocol upgrades, maintaining network security, and achieving consensus among distributed stakeholders. Testing and deploying changes require rigorous peer review and extensive collaboration with other developers and the broader community to prevent disruptions. Additionally, developers must stay updated with evolving cryptographic standards and scalability solutions to keep the blockchain secure and efficient.

What is the difference between Core Blockchain Developer vs Blockchain Software Engineer?

AspectCore Blockchain DeveloperBlockchain Software Engineer
Primary FocusDeveloping and maintaining blockchain protocols, consensus algorithms, and core infrastructureBuilding blockchain applications, smart contracts, and user-facing solutions
Required SkillsDeep understanding of blockchain architecture, cryptography, consensus mechanismsProficiency in programming languages, smart contract development, API integration
Work EnvironmentTypically in blockchain development teams, R&D, or core protocol projectsIn software development teams, creating decentralized apps and tools
Industry UsageUsed by blockchain protocol projects, core infrastructure providersUsed by dApp developers, fintech companies, and blockchain startups

While both roles require blockchain knowledge, Core Blockchain Developers focus on building and optimizing the underlying blockchain protocols, whereas Blockchain Software Engineers develop applications and smart contracts on top of existing blockchain platforms.

What cities in Washington are hiring for Core Blockchain Developer jobs?

Cities in Washington with the most Core Blockchain Developer job openings:

Infographic showing various Core Blockchain Developer job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 17% Part Time, and 2% Contract. Highlights an 93% Physical, 3% Hybrid, and 4% Remote job distribution.

Blockchain Application Developer Intern

Silver Spring, MD • Remote

DMS International
51 - 200 employees
Learn more about DMS Internationalexternal

$20 - $26/hr

Part-time, Internship

Posted 19 days ago

Key responsibilities

  • Support the design, development, testing, and implementation of blockchain-enabled applications and digital solutions.

  • Assist with integrating blockchain services with web and mobile applications through APIs and software development kits.

  • Participate in code reviews, debugging, testing, and application security activities.

Job description

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

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