Lyndon Zhong

Experience

• 

  Toronto Water

  Jan 2018 - Apr 2018

  IT Trainee

  - Independently implemented, tested and debugged internal application for successful deployment - Effectively applied high-level SQL skills to synthesize compelling and clear data visualizations- Deeply understood Oracle database design pattern by creating self-contained practical databases - Demonstrated strong interpersonal and teamwork skills through multiple projects composed of diverse inter-department and intercultural colleagues. - Indepthly applied key principles about database structure and modeling, also acquired comprehensive knowledge on Oracle Application Express Show less

• 

  Loblaw Companies Limited

  Sept 2018 - Dec 2018

  Data Developer

  - Optimized data processing and cleaning utilizing solid Python and Numpy techniques - Adapted machine learning packages and Jupyter application to attain project-specific analysis - Utilized strong programming skills to execute efficient project-focused algorithms - Technical proficiency of Unity application to build a stable Mixed Reality program on Hololens- Presented great ability in absorbing and understanding new technologies through multiple successes in designing, developing and deploying projects- Synthesized concise monthly work summaries to track progress and documentations to finalize updates and record potential future designs Show less

• 

  Scotiabank

  May 2019 - Aug 2019

  Data Engineer

  • Detected a catastrophic historical data loss from 2015 and recovered 98% of the lost data• Restructured and validated long-standing buggy bash pipeline to ensure timely data flow• Produced flow reports and documentation for complex data pipelines to improve onboarding

• 

  Loblaw Digital

  Jan 2020 - Apr 2020

  Data Scientist

  • Conducted detailed performance evaluations of search engine rankings outputs, based on a sample of 14000 records over 20 chosen types of products• Utilized ElasticSearch, TF-IDF score, fine-tuned BERT and LambdaMart model to optimize searching performance for long queries• Automated testing process with Python by implementing working pipelines, generating milestone files and analyzing final performance using metric scoring• Created dashboard in Data Studio to visualize sale change percentage over days with SQL Show less

• 

  Praemo

  Sept 2020 - Dec 2020

  Data Scientist

  - Detected anomalies at 90% accuracy and understood patterns in multi-dimensional timestamped data by utilizing and customized GaussianMixture package from sklearn- Implemented a classifier to generate data-based comments by combining anomaly detection techniques with TF-IDF and OPTICS based cluster templating- Created real-time Grafana dashboards to monitor Kubernetes usage, MongoDB occupancy and failure logs

• 

  Uplift Inc.

  Aug 2021 - Dec 2023

  - Optimized business critical pipeline by 40% on runtime, proficiency, and stability by redesigning and migrating from AWS lambda functions to Databricks DLT jobs- Led cross-functional group to review current engineering systems and practices to seek opportunities to adopt industry best practices, remove development blockers, and offer insights from the Data Engineering team- Managed the migration of the data platform from Snowflake to Databricks, including but not limited to secrets management, pipeline migration, access control, and downstream instructions - Standardized Databricks pipeline design and deployment process by migrating from DBX to DAB- Supported in managing production third-party platforms and provided guidelines to external teams - Fostered a collaborative and agile work environment by mentoring co-op students and new hires Show less

  • Senior Data Engineer

    Jul 2023 - Dec 2023

  • Data Engineer

    Aug 2021 - Jul 2023
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  Upgrade, Inc.

  Dec 2023 - Apr 2024

  Data Engineer

  Acquired Uplift

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  Robinhood

  Apr 2024 - now

  Data Engineer