Sr. Blockchain Developer
SEQUERE —Mississauga, ON
- JavaScript
- Contracts
- APIs

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Sr. Blockchain Developer

SEQUERE
Mississauga, ON

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Job details

Qualifications

Node.js
Blockchain
Encryption
JavaScript
Contracts
APIs
TypeScript

Full job description

About Our Company

We are pioneers in blockchain technology and innovative IT solutions, committed to delivering excellence and empowering businesses worldwide.

Our culture thrives on collaboration, creativity, and continuous learning, making us the perfect place to grow your career while shaping the future of technology.

Build Your Future with Us

At our company, your ideas and skills shape the future. Join a passionate team committed to innovation and growth.

Explore exciting opportunities to challenge yourself, learn, and thrive in a collaborative environment.

Sr. Blockchain Developer

Experience: 3–5 Years

Tech Stack: Solidity, Hardhat, Ethers.js, Node.js

About the Role

We’re looking for a highly skilled Senior Blockchain Developer with 3–5 years of hands-on experience in building decentralized applications and smart contracts. You’ll work closely with our product and engineering teams to bring secure, scalable, and innovative blockchain solutions to life.

Responsibilities

Design and implement smart contracts on Ethereum and EVM-compatible blockchains.
Develop and maintain decentralized applications (dApps) using web3.js, ethers.js, or similar libraries.
Integrate blockchain systems with existing infrastructure and APIs.
Conduct audits and ensure the security of all blockchain-based components.
Stay updated on the latest trends in DeFi, Layer 2 solutions, and emerging blockchain protocols.

Requirements

3–5 years of experience in blockchain development, especially Ethereum or Solidity.
Proficiency with smart contract standards (ERC-20, ERC-721, ERC-1155).
Strong background in JavaScript/TypeScript and at least one modern frontend framework.
Experience with Hardhat, Truffle, Remix, or other blockchain development tools.
Understanding of cryptography, consensus mechanisms, and Layer 1/Layer 2 architectures.

Why Join Us?

Friendly work environment
Career acceleration & growth
Work on global client projects
Continuous learning & upskilling
Attractive compensation packages

95%

Team Satisfaction

500+

Clients Served

Apply Now

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Sr. Blockchain Developer

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About Our Company

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Sr. Blockchain Developer

About the Role

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Why Join Us?

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