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Freelance Software Engineer – Blockchain

Twine
Be an Early ApplicantContractmidHybrid
Markham, Ontario, CAPosted April 7, 2026

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Job Description

Join a dynamic team focused on advancing decentralized technology solutions as a Blockchain Software Engineer. This role is based in Markham, Canada, and offers a hybrid work arrangement with some on-site presence preferred. You will contribute to the development and implementation of blockchain-based applications, collaborating with cross-functional teams to deliver secure and scalable solutions. Occasional travel may be required to support project needs and team collaboration.

Responsibilities

  • Design, develop, and maintain blockchain-based software solutions
  • Collaborate with product managers and other engineers to define technical requirements
  • Implement smart contracts and decentralized applications (dApps)
  • Ensure the security and integrity of blockchain integrations
  • Participate in code reviews and contribute to best practices
  • Troubleshoot, debug, and optimize blockchain applications
  • Stay updated on emerging trends and technologies in blockchain

Skills And Requirements

  • Proven experience with blockchain development (e.g., Ethereum, Hyperledger, or similar platforms)
  • Proficiency in programming languages such as Solidity, JavaScript, or Python
  • Understanding of cryptographic protocols and decentralized systems
  • Familiarity with smart contract development and deployment
  • Experience with version control systems (e.g., Git)
  • Strong problem-solving and analytical skills
  • Ability to work in a hybrid setting with some on-site presence in Markham, Canada
  • Willingness to travel occasionally as required
  • Excellent communication and teamwork abilities

About Twine

Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally.

Our Mission

Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

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