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 deploy smart contracts using Solidity on Ethereum and compatible EVM blockchains.
Build and maintain dApps, including wallets, exchanges, and DeFi protocols.
Integrate blockchain technologies with 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 with blockchain frameworks such as Truffle, Hardhat.
Strong understanding of cryptographic principles, decentralized networks, and consensus mechanisms.
Desired Skills
Exposure to Polkadot, Cosmos, or Solana ecosystems.
Experience with Layer 2 solutions (e.g., Arbitrum, Optimism).
Understanding of zero-knowledge proofs (zk-SNARKs / zk-Rollups).
Payments, lending, or blockchain experience
Regulatory or compliance knowledge
Familiarity with containerization (Docker) and CI/CD pipelines.
Benefits
Job Benefits
Competitive base salary plus crypto or equity incentives
Flexible remote-first work environment
Competitive salary and bonus potential
Health, dental, and vision insurance
Equity or incentive programs (role dependent)
Comprehensive health and wellness support
Numbers & Facts
Location
Seattle, Washington
Website
https://mastarrec.com
Skills
Analysis Skillsunmatched
Application Programming Interface (API)unmatched
Best Practicesunmatched
Blockchainunmatched
Cloud Computingunmatched
Communication Skillsunmatched
Continuous Deployment/Deliveryunmatched
Continuous Integrationunmatched
Cryptographyunmatched
Dental Insuranceunmatched
Dockerunmatched
Earned Value Management (EVM)unmatched
Ecosystemsunmatched
Ethereumunmatched
Financial Systemsunmatched
Loansunmatched
Regulationsunmatched
Regulatory Complianceunmatched
Riskunmatched
Software Developmentunmatched
Vision Planunmatched
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