Available to hire
Hi, I’m Jiayang Sun, a software engineer and data enthusiast based in Edmonton, Alberta. I blend software development with data analytics to build scalable platforms and data-driven insights that help teams make informed decisions.
I’ve delivered full-stack web applications, designed robust ETL pipelines, and built real-time data workflows across cross-functional teams. I’m always exploring new technologies and enjoy solving problems that create value for users and businesses.
Skills
Language
English
Fluent
Work Experience
Junior Data Scientist (Part Time) at The Mantis Group
April 1, 2025 - September 18, 2025Developed and maintained robust ETL pipelines using Databricks, automating daily data ingestion from Google BigQuery and Salesforce Marketing Cloud, ensuring data integrity and reducing manual processing. Engineered streaming data workflows with Databricks Autoloader, handling continuous real-time data ingestion, schema inference, and maintaining state checkpoints to ensure reliability and fault tolerance. Designed comprehensive data transformation layers (Bronze, Silver, Gold) for data standardization, KPI computation, and advanced analytics, improving data usability and accessibility for downstream applications. Implemented scalable solutions to calculate business-critical KPIs such as Net Present Worth (NPW), Return on Ad Spend (ROAS), and user engagement metrics, significantly enhancing marketing decision-making and ROI.
Junior Data Scientist (Part Time) at The Mantis Group
April 1, 2025 - September 18, 2025Developed and maintained robust ETL pipelines using Databricks, automating daily data ingestion from Google BigQuery and Salesforce Marketing Cloud, ensuring data integrity. Engineered streaming data workflows with Databricks Autoloader for real-time ingestion, schema inference, and state checkpoints to ensure reliability. Designed Bronze, Silver, Gold data layers for standardization and KPI computation, improving KPI calculation and ROI analysis.
Full Stack Engineer Intern at Fintelics
September 1, 2022 - September 18, 2025Developed a high-concurrency online course trading platform with a decoupled architecture using React.js (front-end) and Node.js/Express (back-end), implementing JWT authentication and a responsive UI with Redux-managed state. Optimized MongoDB performance by applying aggregation pipelines and composite indexes, cutting database I/O by 60% and reducing course search API latency from 850ms to ≤200ms.
Full Stack Engineer Intern at Fintelics
September 1, 2022 - September 18, 2025Developed a high-concurrency online course trading platform with a decoupled architecture using React.js (front-end) and Node.js/Express (back-end), implementing JWT authentication and responsive UI with Redux-managed state. Optimized MongoDB performance using aggregation pipelines and composite indexes, reducing course search API latency from 850ms to ≤200ms and cutting database I/O by 60%.
Education
Master of Engineering in Software Engineering and Intelligent System at University of Alberta
September 1, 2023 - May 1, 2025Bachelor of Science: Honors in Computing Science at University of Alberta
September 1, 2019 - May 1, 2023Master of Engineering in Software Engineering and Intelligent System at University of Alberta
September 1, 2023 - May 1, 2025Bachelor of Science: Honors in Computing Science at University of Alberta
September 1, 2019 - May 1, 2023Qualifications
Industry Experience
Software & Internet, Computers & Electronics, Professional Services, Media & Entertainment, Education
Skills
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