Senior 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 3+ million users who trust us with more than $100 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 Senior Software Developer Role As a Senior Crypto Software Developer, you'll be instrumental in building Wealthsimple's non‑custodial crypto infrastructure from the ground up. You'll work at the intersection of traditional fintech and decentralized protocols, helping to bridge the gap between complex blockchain technology and intuitive user experiences. This role offers the unique opportunity to shape how over a million crypto clients interact with decentralized finance while maintaining Wealthsimple's high standards for security, reliability, and user experience. In this role, you’ll have the opportunity to Build and architect new on‑chain non‑custodial products that give users full control over their crypto assets Design and implement integrations with leading DEXs, DeFi protocols, and wallet providers Enhance our existing custodial crypto offerings by expanding asset selection and improving product functionality Work with cutting‑edge blockchain technology and contribute to the evolution of decentralized finance Collaborate with cross‑functional teams to deliver seamless crypto experiences to over a million users Help establish technical standards and best practices for crypto development at Wealthsimple What you’ll bring Proven experience working in the crypto/blockchain industry with hands‑on development experience Deep familiarity with integrating DEXs, wallet providers, and smart contract protocols Strong understanding of blockchain fundamentals, including transaction mechanics, gas optimization, and security considerations Experience with Ethereum and other major blockchain networks, including Layer 2 solutions Working knowledge of smart contract development and interaction (EVM/SVM) Knowledge of DeFi protocols, AMMs, and decentralized exchange mechanisms Understanding of crypto security best practices, including key management and multi‑signature implementations Experience with Web3 libraries and tools (ethers.js, web3.js, etc.) Solid background in backend development with languages like Ruby on Rails, Java, Kotlin, or Python Strong problem‑solving skills and ability to navigate the rapidly evolving crypto landscape Passion for decentralized finance and its potential to democratize financial services Why Wealthsimple?