Blockchain Developer

MastarRec; Remote; USD 80,000 - 100,000; Full time

Job summary

A specialist recruitment agency is seeking a Blockchain Developer to support innovative financial platforms in the US. This role involves designing and deploying smart contracts on Ethereum and maintaining decentralized applications. Ideal candidates will have strong FinTech knowledge, experience with blockchain frameworks, and the ability to collaborate with cross-functional teams. The position offers a flexible remote-first work environment along with a competitive salary and benefits.

Benefits

Competitive base salary plus crypto or equity incentives

Flexible remote-first work environment

Health, dental, and vision insurance

Comprehensive health and wellness support

Qualifications

• Solid understanding of decentralized networks and consensus mechanisms.
• Experience in FinTech environments.
• Strong analytical skills to assess risk.

Responsibilities

• Design, develop, and deploy smart contracts using Solidity.
• Build and maintain dApps, including wallets and exchanges.
• Integrate blockchain technologies with systems and APIs.
• Collaborate with engineering, product, and compliance teams.

Skills

FinTech or financial systems knowledge

Data, risk, or software development expertise

Strong analytical and communication skills

Experience with blockchain frameworks

Understanding of cryptographic principles

Tools

Truffle

Hardhat

Job description

Seattle, United States | Posted on 05/02/2026

MastarRec is a specialist recruitment and staffing agency supporting high-growth and technology-driven industries across the United Kingdom, the United States, and global markets. We partner with organizations to deliver tailored staffing solutions focused on quality, integrity, and long-term value for both clients and candidates.

Job Description

MastarRec is hiring a Blockchain Developer to support innovative financial technology platforms operating across the United States. This role focuses on building, scaling, and securing modern financial systems in a fast-paced environment.

Key Responsibilities

• Design, develop, and deploysmart contractsusingSolidityonEthereumand compatible EVM blockchains.
  
• Build and maintaindApps, including wallets, exchanges, and DeFi protocols.
  
• Integrateblockchain technologieswith existing systems, APIs, and cloud infrastructures.
  
• Design, build, or manage FinTech platforms and solutions
  
• Collaborate with engineering, product, and compliance teams
  
• Ensure regulatory and security best practices
  
• Support scalability, performance, and reliability
  

Requirements

Required Skills

• FinTech or financial systems knowledge
  
• Data, risk, or software development expertise
  
• Strong analytical and communication skills
  
• Experience withblockchain frameworkssuch asTruffle,Hardhat.
  
• Strong understanding ofcryptographic principles,decentralized networks, andconsensus mechanisms.
  

Desired Skills

• Exposure toPolkadot,Cosmos, orSolanaecosystems.
  
• Experience withLayer 2 solutions(e.g., Arbitrum, Optimism).
  
• Payments, lending, or blockchain experience
  
• Regulatory or compliance knowledge
  
• Familiarity withcontainerization(Docker) andCI/CD pipelines.
  
• Competitive base salary pluscrypto or equity incentives
  
• Flexible remote-firstwork environment
  
• Competitive salary and bonus potential
  
• Health, dental, and vision insurance
  
• Equity or incentive programs (role dependent)
  
• Comprehensivehealth and wellness support