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Senior Smart Contract Developer to design, build, test, and maintain smart contract logic that implements core business rules and financial behaviors

Company

S.i. Systems

Location

Toronto, Ontario

Posted

March 23, 2026

Position Overview

Contract: 6 months
Hybrid
Must Haves:
Hands-on experience writing and maintaining smart contracts
Strong programming skills in:
Python (for Vault smart contracts), and/or
Solidity or other blockchain contract languages
Experience implementing complex business logic in code
Strong understanding of:
Financial rules and calculations (interest, fees, penalties, limits)
Event-driven programming concepts
Experience with testing, debugging, and optimizing production-grade code
Ability to work closely with technical and non-technical stakeholders
Nice to Have
Experience with Thought Machine Vault smart contracts
Background in financial services, fintech, or payments
Familiarity with secure coding practices for smart contracts
Exposure to CI/CD pipelines and automated testing frameworks
Smart Contract Developer
Role O...
        

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Senior Smart Contract Developer to design, build, test, and maintain smart contract logic that implements core business rules and financial behaviors

Position Overview

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