Team Lead  •  Linker Vision                                                                                                              2022/10 - Present

Software Engineer                                                                                                                               2022/2 - 2022/10

Led DataVerse's comprehensive development lifecycle, from conceptualization to deployment. Orchestrated the platform's architecture, curated the technology stack, and engineered pivotal features from the ground up. Provided adept guidance, fostering a collaborative team culture with a strong sense of ownership. Instrumental in creating critical services and guiding cross-functional teams to successful project implementation.

• Effectively led the DataVerse Team in successfully launching the SaaS product on AWS Marketplace
• Implemented advanced functionality, enabling users to execute intricate queries on datasets containing millions of records within milliseconds.
• Optimized existing CI/CD pipelines, resulting in a remarkable 5x increase in deployment efficiency. Pioneered the implementation of an ML training system in collaboration with data scientists, empowering users to fine-tune models.
• Prioritized the creation of a positive developer experience through rigorous code reviews, strategic pair programming sessions, and regular one-on-one reviews. Ensured team members had ample opportunities for skill growth and development.
• Skillfully analyzed complex and ambiguous requirements, proposing multiple solutions after a thorough evaluation of the pros and cons of each option.
• Acted as the primary point of contact, maintaining transparent communication with supervisors to keep them informed of progress and development updates.

Back End Engineer •  UNNO Technology Ltd.                                                                        2020/3 - 2022/2

In charge of leading report structure refactoring, handle things related to database, e.g. designing appropriate table relationships, performance tuning, making custom role structure combined with the way of project deployment for defending the attack. Additionally, make the website safe even under the DDoS attack by zero-database-IO captcha library which is rewritten by me and defense mode.

• Microservice projects (with Django Rest Framework) development and maintenance
• Design database role structure combined with project deployment for data security
• Rewrite django-simple-captcha library from database IO version to fully cache involved version
• Refactor report structure, modeling the way to build reports, improve 10x performance with cache
• Deploy blockchain smart contracts, develop deposit/withdraw crypto currency automation
• Design multi-database structure with Django Ninja for data integration (ETL) project
• Prevent the server from being attacked by setting up WAF, throttling APIs with one-click defense mode.
  
• Analysis of over 1 billion-level rows of data in PostgreSQL for reports
• Stress testing, performance testing and generating related reports with Locust
  
  
  

Back End Engineer  •  Aoyue Design                                                                                            2019/2 - 2020/3

Fully remote with the Hong Kong office, mostly focus on the main project (C#) development, database performance tuning, creating sales reports using Telerik libraries and making reports published automatically.

• Generating reports with Telerik Reporting, using Hangfire as background schedule tasks manager 
• Automatically publish reports with Azure Logic Apps as the task scheduler
• Replace LINQ with MSSQL optimized Stored Procedure (T-SQL)
• Handle frontend (Telerik Kendo UI) and Controller simultaneously
• Database design, handling relationships and normalization