Dabin Jung

Experience

Avanade Inc. [Permanent]

Dec 2023 - Present

Senior Analyst / Backend Developer

Tokyo, Japan

Internal Data Analytics Platform for Semiconductor Manufacturer (Nov 2024 - Present)
- Internal manufacturing analytics platform for data processing, ETL workflows, dashboards, and reporting.
- .NET Core, EF Core, Angular, SQL Server
- Team of 6 to 20, ~115k LOC, 18 dashboard pages, 44 API endpoints
- Built Angular dashboard pages, implemented C# application services, supported ETL and data-processing workflows, and tuned SQL Server queries for aggregation-heavy workloads with indexing and execution plan optimization.
Enterprise System Design & Digital Transformation Project (Apr 2024 - Oct 2024)
- Web-based system design project that systematized complex client workflows previously handled manually in Excel.
- Requirements analysis, system design, database design, application service design, Waterfall methodology
- Team of 6 to 20 with offshore development teams; 100+ screens and 50+ database schemas
- Led requirements analysis and upstream system design, translating complex client requirements and Excel-based workflows into a practical web system; defined database schemas, application service specifications, and screen designs, and managed delivery progress with offshore development teams.

Growth & Communications Inc. [Permanent]

Oct 2021 - Nov 2023

Software Engineer

Tokyo, Japan

Used Car Trading & Export Platform Development & Maintenance (Jan 2023 - Nov 2023):
- Developed new features for and maintained a legacy web platform that had been in production for over 10 years.
- ASP.NET, .NET Framework, SQL Server, Redis, Jenkins, GCP
- Team of 5; long-running production platform with 1M+ registered users
- Designed and developed new pages, optimized features, and managed automated testing and deployment workflows.
Financial Investment Analysis System Backend Rebuild (May 2022 - Dec 2022):
- Rebuild project for a legacy financial investment information backend system.
- ASP.NET, .NET Framework, SQL Server, VBA, GAS
- Team of 3; 20+ API endpoints
- Migrated and rebuilt existing features, and created automated test tools using C# and Google Apps Script to support testing and reduce manual validation work.
Banking System OTP Development (Oct 2021 - Mar 2022):
- OTP authentication feature development for a major banking system.
- ASP.NET, .NET Framework, JavaScript, Oracle DB
- Team of 5; 5 screens
- Developed OTP authentication features and delivered changes in a security-sensitive environment under strict banking security and quality standards.

W2 Solution Co., Ltd. [Permanent]

Dec 2020 - Sep 2021

Software Engineer

Tokyo, Japan

E-Commerce Product Development (Dec 2020 - Aug 2021):
- Proprietary e-commerce platform for launching online stores, offered as both a standard product and client-specific customized editions.
- ASP.NET, C#, .NET Framework, SQL Server
- Customized product team of 3; standard product team of 20; 20+ client-specific customized editions
- Primarily developed new features and bug fixes for customized client editions, while also contributing to feature development and maintenance of the standard product.

AVAIL Corporation [Permanent]

Aug 2019 - Nov 2020

Junior Software Engineer

Tokyo, Japan

Apparel Management System Development (Aug 2019 - Nov 2020):
- Maintenance and customization of core business systems for apparel operations.
- VB.NET, C#, SQL
- Team of 2
- Conducted root cause analysis for data defects and optimized SQL queries to improve system stability and maintainability.