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

SZNS Solutions LLC

Senior Software Engineer

Reston, VA · On-site

$127K - $168K/yr

... * DevOps: Ensure operational efficiency when developing and delivering completed systems. * Web3 Technologies: Drive the development of decentralized applications and smart contracts in the ...

SZNS Solutions LLC

Senior Software Engineer

Reston, VA · On-site

$127K - $168K/yr

... * DevOps: Ensure operational efficiency when developing and delivering completed systems. * Web3 Technologies: Drive the development of decentralized applications and smart contracts in the ...

Peraton

Smart Hands Technician

Ashburn, VA

$66K - $106K/yr

This role works closely with remote engineering teams, customers, and vendors to ensure reliable ... and contract considerations. Depending on the position, employees may be eligible for overtime ...

Peraton

Smart Hands Technician

Ashburn, VA · On-site

$66K - $106K/yr

This role works closely with remote engineering teams, customers, and vendors to ensure reliable ... and contract considerations. Depending on the position, employees may be eligible for overtime ...

Peraton

Smart Hands Technician

Ashburn, VA

$66K - $106K/yr

This role works closely with remote engineering teams, customers, and vendors to ensure reliable ... and contract considerations. Depending on the position, employees may be eligible for overtime ...

ICF

Contracts Manager (non-supervisory) - Remote

Reston, VA · On-site +1

$92K - $123K/yr

Our CET division helps clients achieve smart, resilient, and low-carbon-growth by leveraging our ... Lead the contract review and negotiation process for new proposals, RFP awards, amendments to ...

ICF

Contracts Manager (non-supervisory) - Remote

Reston, VA · On-site +1

$92K - $123K/yr

Our CET division helps clients achieve smart, resilient, and low-carbon-growth by leveraging our ... Lead the contract review and negotiation process for new proposals, RFP awards, amendments to ...

Merrick Design and Build

Project Developer

Kensington, MD · On-site

$100K/yr

Lead and manage the residential design from contract through handoff. * Build and maintain strong ... Smart How to Apply * Please apply by submitting your most recent updated resume. We have a formal ...

Hirekeyz Inc

Web Application Developer

Andrews, MD · On-site

Joint Base Andrews, MD (On-site) Duration: Long Term Contract Active Secret Security Clearance ... Develop and maintain smart decision trees and interactive tools that guide applicants through ...

DANE LLC

Software Developer

Chantilly, VA · On-site

$85K - $100K/yr

... and support our incredibly smart, talented team. We offer aggressive PTO from day one ... NET Core, Spring Boot, or NestJS; document contracts with OpenAPI/Swagger. * Develop and test ...

DANE LLC

Software Developer

Chantilly, VA · On-site

$85K - $100K/yr

... and support our incredibly smart, talented team. We offer aggressive PTO from day one ... NET Core, Spring Boot, or NestJS; document contracts with OpenAPI/Swagger. * Develop and test ...

DANE LLC

Software Developer

Chantilly, VA · On-site

$85K - $100K/yr

... and support our incredibly smart, talented team. We offer aggressive PTO from day one ... NET Core, Spring Boot, or NestJS; document contracts with OpenAPI/Swagger. * Develop and test ...

USM

Documentum/xCP Developer

Washington, DC

Washington, DC Duration: 6 -12 months +contract OVERALL PURPOSE OF POSITION: The purpose of this ... 2011 Smart CEO Award Winner By SMART CEO Magazine, Baltimore, U.S.A Inc5000 Recognized Fastest ...

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Showing results 41-60

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

Smart Contract Developer information

See Washington, DC salary details

$45.1K

$145.9K

$178.8K

How much do smart contract developer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for smart contract developer in Washington, DC is $145,950.00, according to ZipRecruiter salary data. Most workers in this role earn between $119,600.00 and $177,200.00 per year, depending on experience, location, and employer.

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

AspectSmart Contract DeveloperBlockchain Developer
CredentialsKnowledge of Solidity, Ethereum, smart contract securityKnowledge of blockchain protocols, cryptography, and development tools
Work EnvironmentFocus on writing, testing, and deploying smart contracts on blockchain platformsDevelops entire blockchain applications, including smart contracts and decentralized apps
Industry UsagePrimarily in DeFi, NFT, and blockchain-specific projectsBroader blockchain solutions, including infrastructure and application development

While both roles work within the blockchain industry, a Smart Contract Developer specializes in creating and securing smart contracts, whereas a Blockchain Developer has a broader scope, including building entire blockchain systems and applications.

What is a smart contract developer?

Smart Contract Developers are professionals who design, write, and deploy self-executing contracts on blockchain platforms such as Ethereum. These contracts encode rules and agreements into code, enabling automated and trustless transactions between parties. Smart Contract Developers are skilled in blockchain technologies and programming languages like Solidity, and they ensure that contracts are secure, efficient, and function as intended. They often work with decentralized applications (dApps) and participate in the broader ecosystem of blockchain development.

What are the key skills and qualifications needed to thrive as a smart contract developer, and why are they important?

To thrive as a Smart Contract Developer, you need a strong grasp of blockchain fundamentals, proficiency in programming languages like Solidity or Vyper, and experience with decentralized application (dApp) development. Familiarity with tools such as Truffle, Hardhat, Remix, and knowledge of smart contract auditing and security best practices is essential. Analytical thinking, attention to detail, and strong problem-solving skills are critical soft skills for this role. These abilities ensure the creation of secure, efficient, and reliable smart contracts that underpin trustworthy decentralized systems.

What are some common challenges smart contract developers face when working on blockchain projects?

Smart Contract Developers often encounter challenges such as ensuring code security, avoiding vulnerabilities like reentrancy attacks, and dealing with the immutability of deployed contracts, which makes fixing bugs post-deployment difficult. Additionally, they must stay updated on rapidly evolving blockchain frameworks and tools, and work closely with auditors and project managers to ensure compliance and correctness. Collaborating with front-end and back-end developers is also key, as smart contracts often form the backbone of decentralized applications requiring seamless integration.
What are popular job titles related to Smart Contract Developer jobs in Washington, DC? For Smart Contract Developer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Smart Contract Developer jobs in Washington, DC look for? The top searched job categories for Smart Contract Developer jobs in Washington, DC are:
Smart Contract Developer jobs near you
Infographic showing various Smart Contract Developer job openings in Washington, DC as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $146,445 per year, or $70.4 per hour.

Senior Software Engineer

SZNS Solutions LLC

Reston, VA • On-site

$127K - $168K/yr

Full-time

Re-posted 13 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 seeking a talented Senior Software Engineer to join our growing team. As a Senior Engineer, you will lead the development of cutting-edge solutions in cloud computing, web3, and decentralized technologies, while mentoring junior engineers. You will play a critical role in shaping our client-facing and internal projects, helping us build scalable, innovative products in a dynamic and fast-paced environment.

Responsibilities
  • End-to-End Development: Lead the design, development, and deployment of full-stack solutions for cloud-native and decentralized applications.
  • Frontend Leadership: Architect and develop highly responsive, user-friendly interfaces using modern frameworks such as React, Vue, or NextJS.
  • Backend Architecture: Implement robust server-side logic with technologies like Node.js, Python, Java, or Go.
  • Database Design: Lead the design and management of both relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
  • Cloud Infrastructure: Architect, deploy, and manage scalable cloud infrastructure primarily within Google Cloud Platform (GCP).
  • API Development: Design and implement efficient RESTful and GraphQL APIs for seamless integration between various components.
  • DevOps: Ensure operational efficiency when developing and delivering completed systems.
  • Web3 Technologies: Drive the development of decentralized applications and smart contracts in the blockchain space.
  • Team Leadership & Collaboration: Mentor junior engineers, conduct code reviews, and collaborate closely with designers, project managers, and other stakeholders.
  • Code Quality & Best Practices: Ensure that the team follows best practices for testing, code quality, and documentation.
  • Innovation: Stay ahead of industry trends, introducing new technologies and tools that can improve our development processes.

Requirements

  • Experience: 5+ years of professional experience in full-stack software development.
  • Technical Expertise: Advanced knowledge of JavaScript and modern frontend frameworks (React, Vue, NextJS).
  • Backend Proficiency: Strong experience developing backend technologies using modern programming languages such as Node.js, Python, Java, or Go.
  • Database Expertise: Proficient in designing and managing relational and NoSQL databases.
  • Cloud Platform Expertise: Deep understanding of cloud platforms, particularly Google Cloud Platform (GCP).
  • DevOps Expertise: Strong experience in DevOps including deploying cloud native services, designing and implementing automated testing, and setting up monitoring for highly available systems.
  • Problem-Solving: Excellent problem-solving skills with a focus on scalable, high-performance solutions.
  • Leadership: Strong leadership skills, with the ability to mentor and guide junior engineers.
  • Collaboration: Ability to communicate effectively and work cross-functionally with various teams.
  • 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
  • Experience working in a startup or fast-paced environment.
  • Familiarity with Figma or similar design tools for translating UI/UX into code.
  • Knowledge of security best practices in cloud development, web development, and blockchain integration.
  • Passion for decentralized technologies and innovative web solutions.

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