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Smart Contract Engineer Jobs in Washington, DC (NOW HIRING)

SZNS Solutions LLC

Software Engineer

Reston, VA

Work with blockchain and smart contract technologies to create Web3 solutions. * Collaboration: Work closely with designers, project managers, and other engineers to meet project goals. * Code ...

SZNS Solutions LLC

Software Engineer

Reston, VA · On-site

Work with blockchain and smart contract technologies to create Web3 solutions. * Collaboration: Work closely with designers, project managers, and other engineers to meet project goals. * Code ...

SZNS Solutions LLC

Software Engineer

Reston, VA · On-site

Work with blockchain and smart contract technologies to create Web3 solutions. * Collaboration: Work closely with designers, project managers, and other engineers to meet project goals. * Code ...

Apex Informatics

Blockchain Engineer

Manassas, VA · On-site

Blockchain Engineer Remote Design, develop & test SWIFT software using Smart contracts, Typescripts, Solidity, JSON, REST APIs & AWS. Analysis and design of existing components. Support setup of test ...

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 contract structures aligned with applicable laws. * Design and implement legal policies, protocols ...

Circle

Staff Software Engineer

Washington, DC · On-site +1

$195K - $257K/yr

Enterprises, financial institutions, and developers use Circle to power trusted, internet-scale ... Web3, blockchain, smart Contract business logic * RESTful API design and development principles

AnaVation

Senior Cryptocurrency Engineer

Washington, DC · Remote

$118K - $162K/yr

As the Senior Cryptocurrency Engineer, you will serve as the primary technical authority for ... Analyze smart contracts, Solidity bytecode, token behavior, mixing/tumbling activity ...

AnaVation

Senior Cryptocurrency Engineer

Washington, DC · On-site +1

$118K - $162K/yr

As the Senior Cryptocurrency Engineer, you will serve as the primary technical authority for ... Analyze smart contracts, Solidity bytecode, token behavior, mixing/tumbling activity ...

Nava

Senior Cryptocurrency Engineer

Washington, DC · On-site

$150 - $210/hr

As the Senior Cryptocurrency Engineer, you will serve as the primary technical authority for ... Analyze smart contracts, Solidity bytecode, token behavior, mixing/tumbling activity ...

Pwc

Digital Assets_ Crypto_ Manager

Washington, DC · On-site

$99K - $232K/yr

... smart contract solutions using Solidity and Rust programming languages - Embracing change and innovation in blockchain regulatory and compliance environments - Leading enterprise architecture ...

Pwc

Digital Assets_Crypto_ Senior Manager

Washington, DC · On-site

$124K - $280K/yr

... smart contracts using Solidity and Rust programming languages - Promoting the adoption of consortium and permissioned blockchains within the payments industry - Validating blockchain systems for ...

SWIFT

Blockchain Developer

Manassas, VA · On-site

$225K/yr

Write secure, efficient smart contracts using languages like Solidity or Rust * Conduct code ... Mentor junior developers and contribute to technical leadership * Stay updated on emerging ...

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All JobsSmart Contract Engineer JobsSmart Contract Engineer Jobs in Washington, DC

Smart Contract Engineer information

See Washington, DC salary details

$43K

$131.2K

$216.8K

How much do smart contract engineer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for smart contract engineer in Washington, DC is $131,179.00, according to ZipRecruiter salary data. Most workers in this role earn between $94,000.00 and $171,500.00 per year, depending on experience, location, and employer.

What is a smart contract engineer?

A Smart Contract Engineer is a software developer who specializes in designing, developing, testing, and deploying smart contracts on blockchain platforms such as Ethereum. These professionals write code—often in languages like Solidity or Vyper—that runs autonomously on the blockchain and governs transactions or agreements without the need for intermediaries. They also focus on security, auditing, and optimizing smart contract performance to prevent vulnerabilities. Smart Contract Engineers typically collaborate with blockchain architects, front-end developers, and project managers to build decentralized applications (dApps).

What are the key skills and qualifications needed to thrive as a smart contract engineer?

To thrive as a Smart Contract Engineer, you need strong proficiency in blockchain fundamentals, programming languages like Solidity or Vyper, and a solid understanding of cryptographic principles, usually backed by a degree in computer science or related experience. Familiarity with blockchain development frameworks (e.g., Truffle, Hardhat), version control (Git), and security auditing tools is essential. Attention to detail, problem-solving abilities, and effective communication are crucial soft skills for this role. These skills ensure the development of secure, efficient, and reliable smart contracts that underpin decentralized applications and financial systems.

What are some common challenges smart contract engineers face when ensuring contract security?

Smart Contract Engineers often encounter challenges related to identifying and mitigating vulnerabilities such as reentrancy attacks, integer overflows, and unauthorized access. Since smart contracts are immutable once deployed, engineers must rigorously test and audit their code to prevent costly errors or exploits. Collaborating with auditors, using established security frameworks, and staying updated on the latest security threats are essential practices to maintain robust and secure smart contracts.

What is the difference between Smart Contract Engineer vs Blockchain Developer?

AspectSmart Contract EngineerBlockchain Developer
CredentialsKnowledge of blockchain platforms, Solidity, cryptographyBroader programming skills, blockchain fundamentals
Work EnvironmentFocus on smart contract coding, testing, deploymentDeveloping blockchain applications, protocols
Industry UsagePrimarily in DeFi, NFT, and dApp projectsWide range including wallets, exchanges, dApps
Search IntentComparing smart contract roles, coding specificsBroader blockchain development roles

While both roles work within the blockchain industry, a Smart Contract Engineer specializes in designing, coding, and deploying smart contracts on blockchain platforms. A Blockchain Developer has a broader scope, including developing entire blockchain applications and protocols. The Smart Contract Engineer's focus is more technical and contract-specific, whereas the Blockchain Developer's role encompasses a wider range of blockchain solutions.

How to become a smart contract engineer?

A smart contract engineer develops and deploys blockchain-based contracts, requiring knowledge of blockchain platforms like Ethereum, programming languages such as Solidity or Vyper, and understanding of cryptography and decentralized systems. Gaining experience through coding projects, online courses, and certifications can help build relevant skills. Familiarity with development tools like Remix, Truffle, or Hardhat is also beneficial.

What are popular job titles related to Smart Contract Engineer jobs in Washington, DC?

For Smart Contract Engineer jobs in Washington, DC, the most frequently searched job titles are:

What job categories do people searching Smart Contract Engineer jobs in Washington, DC look for?

The top searched job categories for Smart Contract Engineer jobs in Washington, DC are:

Smart Contract Engineer jobs near you
Infographic showing various Smart Contract Engineer job openings in Washington, DC as of August 2026, with employment types broken down into 87% Full Time, 8% Part Time, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $131,294 per year, or $63.1 per hour.

Software Engineer

SZNS Solutions LLC

Reston, VA

Full-time

Re-posted 29 days ago

Job description

"SZNS Solutions (pronounced "seasons") is a technology consulting company and Google Cloud Partner based in Reston VA. We specialize in delivering agentic AI and cloud computing solutions. Founded by ex-Googlers with engineers from Google, Amazon, and Capital One, SZNS differentiates itself particularly in AI, data engineering, blockchain, and cloud-native software application development."

We are looking for an Entry-Level Software Engineer to join our growing team! As a member of our dynamic and fast-paced environment, you'll have the opportunity to contribute to exciting projects in cloud computing, web3, and decentralized technologies. You will work alongside talented engineers, learning from experienced professionals while helping to build innovative solutions for our clients and internal initiatives.

Responsibilities
  • End-to-End Development: Design, develop, and deploy full-stack solutions for web-based, decentralized, and cloud-native platforms.
  • Frontend Excellence: Build intuitive and responsive user interfaces using modern JavaScript frameworks like React, Vue, or NextJS.
  • Backend Development: Implement server-side logic using Node.js, Python, or a similar backend framework.
  • Database Management: Design and manage relational (e.g., PostgreSQL, MySQL) and/or NoSQL (e.g., MongoDB) databases.
  • Cloud Development: Design and deploy infrastructure on cloud services, mainly Google Cloud Platform.
  • API Integration: Develop and consume RESTful or GraphQL APIs to connect different components of the ecosystem.
  • Decentralized Technologies: Work with blockchain and smart contract technologies to create Web3 solutions.
  • Collaboration: Work closely with designers, project managers, and other engineers to meet project goals.
  • Code Quality: Ensure the quality of code through testing, peer reviews, and maintaining clear documentation.

Requirements

  • Experience: 1+ years of professional experience in full-stack development, or a recently earned degree in Computer Science, Engineering, or a related field.
  • Frontend Expertise: Familiarity with JavaScript and modern frameworks (React, Vue, NextJS, etc.).
  • Backend Proficiency: Exposure to backend languages like Node.js, Python, Java, or Go.
  • Database Skills: Understanding of relational and/or NoSQL databases.
  • Cloud Platform Knowledge: Basic understanding of cloud technology, preferably the GCP ecosystem.
  • Problem Solver: Strong analytical and problem-solving skills with a focus on delivering scalable solutions.
  • Team Player: Excellent communication skills and the ability to collaborate in a team-oriented environment.
  • GCP Certification: GCP certified or willing to complete at least 1 certification within 1 month after joining.
  • Engineering Excellence: Willingness to grow and continue learning.
Preferred Qualifications
  • Familiarity with decentralized technologies and blockchain concepts.
  • Experience with version control tools like Git.
  • Internship or personal projects showcasing your development skills.

Benefits

  • Competitive salary and benefits package.
  • Hybrid work environment (MWF in-person in our Reston office).
  • A collaborative and innovative work environment.
  • Continuous learning and development opportunities.

Apply