Asher Haroon

Software Engineer at Wealthsimple

Developed and maintained backend services for the Money Movements team using Ruby on Rails, supporting high-volume regulated financial transactions, contributing to a 90% reduction in withdrawal failures. Improved reliability of core money movement systems by leading sustained improvements across critical validation and calculation paths, increasing successful asset movement request completion rates to 95%+ at scale. Led modernization of the Income Fund backend, redesigning withdrawal calculation flows to ensure numerical precision, regulatory compliance for LIF/RRIF, and long-term maintainability.

Software Engineer Co-op at Shopify

Developed key features for the Flow app, used by 1,000+ merchants, including template validation, data preview systems, and workflow configuration tools, while leveraging AI agents like Claude-4-Opus and GPT-5 to accelerate development. Contributed to the development of MCP agent-based automation, enabling prompt-driven generation of syntactically correct workflows with full read/write capabilities. Engineered GraphQL pagination logic using the friendCursor method to map cursor-based node responses into indexed table ranges, reducing query overhead by 40% and improving data navigation speed for large datasets.

Full Stack Developer Co-op at Royal Bank of Canada

Developed and maintained end-to-end backend services for online banking applications for customers and businesses using Spring Boot and Java, leading to a successful acquisition of HSBC and introducing 780,000+ clients. Identified methods to segregate bot traffic from user traffic to avoid polluting logs and created complex queries in SPL and DQL, identifying and resolving potential weaknesses to reduce downtimes in 1000+ APIs and services by 80%. Developed a backend service for creating ephemeral deployments, enabling developers to perform testing in parallel across multiple repositories, speeding up the development process by 10x.