Senior AI System Software Developer

Build something people love

Wealthsimple's mission is to help everyone achieve financial freedom – by making financial services simple, transparent, and low-cost. We're Canada's largest fintech, trusted by over 3 million clients with more than $100 billion in assets. We move fast, we own our work, and we care deeply about the people using our products. If that sounds like you, keep reading.

We're proud of what we've built — and we're just getting started. Read our Culture Manual and learn more about how we work.

About the team

The AI Systems team is focused on building Wealthsimple's first-party AI tools and platforms. We design, develop, and operate the systems that bring AI capabilities directly into the hands of our teams and clients - from intelligent assistants and workflow automation to internal productivity tools powered by large language models.

We're looking for software developers who are excited about building production-grade AI systems end-to-end: from frontend interfaces to backend services, infrastructure to deployment. This isn't a research role - it's a hands-on engineering role where you'll ship real products, collaborate with stakeholders across the company, and continuously evolve our AI platform as the technology and our needs grow.

In this role, you'll have the opportunity to:

• Design, build, and operate first-party AI tools and platforms that serve internal teams and Wealthsimple clients.

• Develop full-stack features across React frontends and Golang backend services, delivering complete, production-ready systems.

• Work closely with stakeholders across product, engineering, operations, and business teams to identify opportunities for AI-driven features and translate them into working software.

• Build and maintain containerized microservices, ensuring our AI platforms are reliable, scalable, and easy to deploy.

• Integrate large language models and other AI capabilities into our tools through well-designed APIs and service layers.

• Contribute to platform architecture decisions, helping shape how AI systems are built and operated at Wealthsimple.

• Iterate quickly on new features and prototypes, balancing speed of delivery with long-term maintainability.

• Establish patterns and best practices for AI system development that other teams can adopt.

Our technologies:

• React for frontend development

• Golang for backend services

• Container-based architecture (Docker, Kubernetes)

• AWS infrastructure

• PostgreSQL and Redis for data persistence and caching

• LLM APIs and AI/ML tooling

• Datadog, Sentry, and Mixpanel for monitoring and observability

• AI-assisted development workflow

What you bring:

• Experience building and shipping production software as a full-stack or backend-focused developer.

• Strong proficiency in Golang and React, or demonstrated ability to ramp quickly on both.

• Hands-on experience with containerized architectures (Docker, Kubernetes) and cloud-native deployment patterns.

• Interest in or experience with AI/ML systems, LLM integrations, or building AI-powered products.

• Ability to work across the full stack - from crafting user interfaces to designing APIs and backend services.

• A product-oriented mindset: you care about the end-user experience and work with stakeholders to deliver features that solve real problems.

• Clear communication with both technical and non-technical teams.

• Comfort operating in a fast-moving environment where pri