Senior AI System Software Developer

About the Role

The AI Systems team is focused on building Wealthsimple's first-party AI tools and platforms, including intelligent assistants, workflow automation, and internal productivity tools powered by large language models. As a Senior AI System Software Developer, you will have the opportunity to work on a wide range of projects, from frontline interfaces to backend services, infrastructure to deployment.

Wealthsimple is committed to fostering a culture of innovation, collaboration, and continuous learning. As a Senior AI System Software Developer, you will be expected to contribute to platform architecture decisions, establish patterns and best practices for AI system development, and iterate quickly on new features and prototypes.

What You Will Do

• 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
• Collaborate with cross-functional teams to drive business growth and deliver exceptional user experiences
• Participate in code reviews, ensuring high-quality code and adherence to best practices

What We Are Looking For

• 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 priorities and technology evolve quickly
• Experience with AWS infrastructure, PostgreSQL, and Redis for data persistence and caching
• Familiarity with Datadog, Sentry, and Mixpanel for monitoring and observability

Nice to Have

• Experience building developer tools, internal platforms, or productivity software
• Familiarity with LLM APIs (OpenAI, Anthropic, etc.), prompt engineering, or retrieval-augmented generation (RAG) patterns
• Background in building event-driven or streaming architectures
• Experience with CI/CD pipelines and infrastructure-as-code
• Background in financial services or regulated industries

Benefits and Perks

• Competitive salary range:
  51,200 -

  89,000
• Top-tier health benefits and life insurance
• Long-term group savings with employer match, through Wealthsimple for Business
• 20 vacation days per year
• Flexible working hours and remote work arrangements
• Opportunities for professional growth and development
• Access to cutting-edge technologies and tools
• Collaborative and dynamic work environment
• Recognition and reward for outstanding performance

• To stand out in your application, be prepared to showcase your experience with containerized architectures, cloud-native deployment, and AI/ML systems.
• Highlight your ability to work across the full stack, from frontend interfaces to backend services, and demonstrate your understanding of platform architecture decisions.
• Emphasize your product-oriented mindset and ability to deliver features that solve real problems, and be prepared to discuss your experience with Agile development methodologies.
• Make sure to research Wealthsimple's technology stack and be prepared to discuss your experience with React, Golang, and AWS infrastructure.
• Be prepared to provide examples of your experience with AI/ML systems, LLM integrations, or building AI-powered products, and demonstrate your ability to communicate complex technical concepts to non-technical stakeholders.