Summary
Work History
Education
Skills
Timeline
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Ariel Sun

Sydney,NSW

Summary

Final-year Master of IT student at UNSW with distinction-level performance and a strong foundation in data engineering, backend systems, and frontend development. Experienced in building scalable ETL pipelines, optimizing SQL queries (15%+ performance gain), and developing interactive single-page applications with JavaScript. Proficient in Python, PostgreSQL, REST APIs, and data visualization. Passionate about solving real-world problems through clean, data-driven solutions. Seeking to contribute to production-grade engineering at Freelancer through rapid learning, technical ownership, and collaboration.

Work History

Database Engineer

University of New South Wales
07.2024 - 08.2024
  • Developed 8 PostgreSQL functions to streamline multi-join and aggregation queries on 100k+ row datasets.
  • Boosted query performance by 15% through use of indexing, views, and procedural logic.
  • Diagnosed and resolved 12+ schema inconsistencies to enforce referential integrity.
  • Delivered 6 reusable SQL views for data exploration and reporting layers.

Web Frontend Developer

University of New South Wales
06.2024 - 07.2024
  • Developed a single-page web application that allows users to create, edit, and present slide-based content like an online PowerPoint platform.
  • Implemented 5 navigable views using JavaScript (ES6), DOM APIs, HTML, and CSS, without using external frameworks.
  • Built 7 reusable components, including text blocks, headings, and media items, and supported full dynamic slide rendering.
  • Achieved under 100ms page transitions with optimised DOM updates on decks of up to 50 slides.
  • Ensured accessibility compliance and responsive layout across desktop and tablet devices.

Data Engineer

University of New South Wales
03.2024 - 05.2024
  • Designed and implemented an ETL pipeline in Python to process 5,000+ job market records with salary and cost-of-living data.
  • Integrated 3 external data sources, handling JSON and CSV formats to build a structured analysis-ready dataset.
  • Applied transformation logic to reduce data mismatches by 10% and improve dataset usability.
  • Produced 4 visualisation dashboards with Matplotlib for salary vs. cost benchmarking across 10+ countries.

Education

Master of Information Technology - Information Technology

University of New South Wales (UNSW)
Sydney, NSW
11.2025

Skills

  • Languages: Python, JavaScript (ES6), SQL, Bash
  • Databases: PostgreSQL, MySQL (basic), Relational Schema Design
  • Tools & Frameworks: Git, Jupyter, HTML/CSS, UNIX/Linux, REST APIs
  • Libraries: Pandas, NumPy, Matplotlib
  • Concepts: Query Optimization, Data Pipeline Development, Component-Based UI Design, Cloud Deployment Fundamentals, Agile Development

Timeline

Database Engineer

University of New South Wales
07.2024 - 08.2024

Web Frontend Developer

University of New South Wales
06.2024 - 07.2024

Data Engineer

University of New South Wales
03.2024 - 05.2024

Master of Information Technology - Information Technology

University of New South Wales (UNSW)
Ariel Sun