Senior Software Developer, Product Engineering (Full Stack)

About Wealthsimple

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 $70 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.

As we prepare for an exciting 2026, we're making bold investments across our Engineering organization, with a focus on growing both new and existing teams within our core pillars: Banking, Investing, and the Financial Operating System (FOS). Each of these pillars plays a critical role in helping us achieve our mission of building a more accessible, transparent, and human financial system.

We're looking for talented developers who are excited by complex technical challenges, motivated by impact, and eager to shape the future of financial services in Canada. Whether you're passionate about backend systems, product engineering, platform scalability, or everything in between, there's a place for you here.

Employment Type: Permanent Full Time

What You'll Do

• Collaborate with our cross-functional teams of talented software developers, data scientists, product managers, and designers to give Wealthsimple clients delightful web and mobile experiences.
• Ship impactful projects and solve interesting problems on a regular basis leveraging cutting edge technology.
• Work across the entire tech stack to iteratively build, test, deploy and monitor high quality software.

Our Technologies

• Architecture: Service oriented architecture with over 100+ services.
• Backend: Roughly half of these services are Ruby on Rails, with the other half being Java/Kotlin. The teams we are hiring for here are mostly using Ruby on Rails, and a few use Python.
• Frontend: Our front-end application is a mix of React/Angular.
• Cloud & Infrastructure: We host our services on Amazon Web Services and use things like RDS, Aurora, SQS, SNS, S3, Kafka, etc.
• AI: We have amazing infrastructure & security teams, and provide access to the latest enterprise-grade AI technologies.
• Practices: We follow best practices and have great tools for profiling, logging, tracing, tracking and experimenting.

What You'll Bring

• Proven track record of scoping and building medium to large features for distributed systems in production.
• Proficiency in code reviews and troubleshooting design or performance issues.
• Solid understanding of common design patterns, relational databases (SQL), and experience working with backend and frontend development frameworks.
• Comfortable with on-call duties and system maintenance.
• Effective at communicating with technical and non-technical stakeholders.
• The drive to help improve team documentation, champion operational excellence, and make meaningful improvements to the codebase.
• Experience working with React or React Native, Ruby on Rails, Java, Kotlin, and/or Python.
• Working knowledge of GraphQL and Kafka.
• Familiarity with frameworks such as Kubernetes and tools such as Temporal and DataDog.
• Experience working on mobile development.
• Experience working with banking or financial technology companies.
• Background in financial technology or B2C applications.
• Experience with interviewing, onboarding, and mentoring junior team members.

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.