Principal Software Developer, Crypto

Your career is an investment that grows over time!
Wealthsimple is on a mission to help everyone achieve financial freedom by reimagining what it means to manage your money. Using smart technology, we take financial services that are often confusing, opaque and expensive and make them transparent and low-cost for everyone. We’re the largest fintech company in Canada, with over 4 million users who trust us with more than $80 billion in assets.
Our teams ship often and make an impact with groundbreaking ideas. We're looking for talented people who keep it simple and value collaboration and humility as we continue to create inclusive and high-performing teams where people can be inspired to do their best work.
About the Crypto Team  The Crypto team is at the forefront of Wealthsimple's expansion into decentralized finance, working to democratize access to crypto for millions of Canadians. We're a passionate group of crypto-native engineers and product experts building the next generation of non-custodial crypto products. Our team combines Wealthsimple's commitment to simplicity and transparency with cutting-edge blockchain technology to create secure, user-friendly crypto experiences that put users in full control of their digital assets.
About the Principal Software Developer RoleAs a Principal Crypto Software Developer, you'll be a leading force in building Wealthsimple's non-custodial crypto infrastructure from the ground up. You'll operate at the intersection of traditional fintech and decentralized protocols, setting the technical direction and bridging the gap between complex blockchain technology and intuitive user experiences. This role offers the unique opportunity to define how over a million crypto clients interact with decentralized finance while championing Wealthsimple's high standards for security, reliability, and user experience.

In this role, you’ll have the opportunity to

• Lead the design and architecture of new on-chain non-custodial products that give users full control over their crypto assets
• Drive the design and implementation of integrations with leading DEXs, DeFi protocols, and wallet providers
• Strategize and enhance our existing custodial crypto offerings by expanding asset selection and improving product functionality
• Pioneer the adoption of cutting-edge blockchain technology and significantly contribute to the evolution of decentralized finance
• Collaborate with and mentor cross-functional teams to deliver seamless crypto experiences to over a million users
• Establish and champion technical standards and best practices for crypto development at Wealthsimple

What you’ll bring

• Extensive proven experience working in the crypto/blockchain industry with a strong track record of hands-on development and technical leadership
• Deep familiarity with integrating DEXs, wallet providers, and smart contract protocols, including advanced use cases
• Expert understanding of blockchain fundamentals, including transaction mechanics, gas optimization, and security considerations
• Extensive experience with Ethereum and other major blockchain networks, including Layer 2 solutions, and the ability to evaluate new protocols
• Expert knowledge of smart contract development and interaction (EVM/SVM), with experience in auditing and optimizing contracts
• In-depth knowledge of DeFi protocols, AMMs, and decentralized exchange mechanisms, including emerging trends
• Comprehensive understanding of crypto security best practices, including advanced key management and multi-signature implementations
• Extensive experience with Web3 libraries and tools (ethers.js, web3.js, etc.), and the ability to contribute to open-source tools
• Strong background in backend development with languages like Ruby on Rails, Java, Kotlin, or Python, with experience in designing scalable systems
• Exceptional problem-solving skills and the ability to navigate and strategically influence the rapidly evolving crypto landscape
• Passion for decentralized finance and its potential to democratize financial services, with a vision for its future

Why Wealthsimple?🤑 Competitive salary with top-tier health benefits and life insurance📈 Retirement savings matching plan using Wealthsimple for Business🌴 20 vacation days per year and unlimited sick and mental health days📚 Up to $1,500 per year towards wellness and professional development budgets respectively 🛫 90 days away program: Employees can work internationally in eligible countries for up to 90 days per calendar year 🌎 A wide variety of peer and company-led