Christopher Parker

Back End Developer @Leap Tools

Toronto, ON, CA

Developed and maintained scalable backend APIs using Python, Django, PostgreSQL, and DynamoDB to support a high-performance e-commerce and visualization platform• Led performance optimization projects that reduced key API response times from 2–3 seconds to under 500ms using query tuning, database partitioning, and profiling at both the application and database layers• Designed and implemented core advertising infrastructure, enabling new monetization features and cross-team integrations• Designed and maintained normalized and denormalized data models to support fast read access patterns for internal and customer-facing services• Implemented asynchronous task processing (e.g. with Celery or equivalents) to offload non-critical workloads and improve user-facing performance• Conducted in-depth query analysis and optimization, using EXPLAIN plans, index tuning, and materialized views where appropriate• Introduced or improved caching layers (e.g, Redis or in-memory Django caching) to reduce database load and latency for frequently accessed endpoints• Participated in code reviews, team design discussions, and sprint planning to uphold high engineering standards and mentor peers• Wrote unit and integration tests to ensure API correctness and prevent regressions during feature development and refactoring• Contributed to API documentation and maintained internal tooling for service observability, monitoring, and debugging (e.g, logging, tracing, APM tools)• Collaborated with frontend developers, product managers, and QA engineers to deliver high-quality features on a consistent release cycle• Helped define and implement database migration strategies to safely evolve schemas with zero downtime in production

DeGroote School of Business - McMaster University

Master of Business Administration - MBA, Business Analytics

McMaster University

Bachelor of Engineering - BE, Mechatronics, Robotics, and Automation Engineering