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Trendon Cato
ASP.NET Core 後端工程師 With MCSA BI Development | MCSA SQL Development | MCSE Data | Azure
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Trendon Cato

ASP.NET Core 後端工程師 With MCSA BI Development | MCSA SQL Development | MCSE Data | Azure
Self-driven, highly motivated and conscientious .NET Developer with a proven track record of success in developing and implementing web-based solutions, maintaining and updating applications, and improving the full system lifecycle. With 4+ years’ experience in areas spanning Database and Application Development, DevOps, and Cloud development, I can be relied upon to deliver everything that I set out to achieve, whilst always seeking ways to help my company grow, and giving customers and clients that smoothest user experience.
Funday Asia
Tamkang University
Taichung, Taiwan

Professional Background

  • Current status
    Employed
  • Profession
    Back-end Engineer
    Software Engineer
  • Fields
    Software
  • Work experience
    6-10 years (4-6 years relevant)
  • Management
    None
  • Skills
    ASP.NET Core
    ASP.NET MVC
    ASP.NET Web API
    MSSQL
    MySQL
    Entity Framework Core
    Dapper
    AJAX
    Github
    GitLab
    Azure DevOps
    Vue.js
    C#
    IdentityServer4
    RabbitMQ
    Docker
    Docker Compose
    Kubernetes
    GCP Compute Engine
    Azure
    AWS EC2
    Nginx
    NodeJS/Express
    Mongoose/MongoDB
  • Languages
    English
    Native or Bilingual
    Chinese
    Intermediate
  • Highest level of education
    Bachelor

Job search preferences

  • Desired job type
    Full-time
    Interested in working remotely
  • Desired positions
    C#.net Development 全端/後端工程師
  • Desired work locations
    Taipei City, Taiwan
    New Taipei City, Taiwan
  • Freelance
    Part-time freelancer

Work Experience

ASP Net Core Developer

Funday Asia
Full-time
Apr 2022 - Present
• Spearheaded the creation of Web APIs and a robust back-end Admin Portal for Funday's Online Learning Platform using ASP.Net Core 5/6, Dapper, and SSMS. Adopted a microservices architecture, improving scalability, and facilitated team-wide comprehension through detailed database schema diagrams and comprehensive documentation, enhancing productivity and collaboration. • Designing, migrating and developing MS SQL Server Databases • Database Design and Development: Designed schemas for SQL Server and MongoDB in support of 10+ Web APIs development, while consulting on schemas and queries for another 5 colleagues' projects, which bolstered overall team efficiency. • Boosted data retrieval by 40% in legacy systems through query optimization and implemented system upgrades that reduced execution time by 60%, enhancing overall database performance by 25% using SQL Profiler and Database Tuning Advisor. • Evaluate requirements while following through on project deliverables and performance of applications. • Transitioned application deployments from Windows Server to GCP Compute Linux VMs using Docker, Nginx, and Docker Compose, improving load balancing and caching. Managed Cloud DNS subdomain configurations and implemented SSL certificates, boosting security and performance. Additionally, established CI/CD pipelines with GitLab Runner. • Regularly mentoring my team of 6 in the use of Gitlab, Docker, Serilog, Elasticsearch, and MS SQL query optimization techniques, improving overall team capabilities. • Leveraged Serilog, ElasticSearch, Kibana, Prometheus, and Grafana, enhancing exception tracking and performance monitoring. Identified bottlenecks via K6 load testing, increasing system throughput by 3-4x through strategic code and query optimizations.

Back End Developer ( ASP.NET Core 後端工程師)

Sep 2020 - Mar 2022
1 yr 7 mos
• Implemented an ASP.NET Core 3.1 MVC, N-Tier architectured CRM Web Application with Razor views utilizing Repository and Unit-of-Work patterns, and Dapper for Data Access. In addition to Razor Views with Ajax for the for the Presentation Layer, and identity user, role, and claims management for security. • Built and designed the base architecture for an ASP.NET Core 5.0 N-Tier architectured Web API using Entity Framework Core code first approach and LINQ-to-SQL for Data Access and implementing JWT Token based authentication for security for a VUE based HR Web Application • Built extensive 100% test coverage for all controllers using XUnit Testing and Moq for our ASP.NET Core 5.0 Web API • Setup, implemented and managed version control for my team of 6 using both Gitlab and Azure DevOps • Communicated with internal teams and stakeholders, working to determine solutions for the user experience • Created an ASP.NET Core 3.1 MVC SaaS Reporting Web Application using Razor Views, Ajax, Apache ECharts and Dapper based on 5 million + records

SQL Database Developer

Jun 2018 - Jun 2020
2 yrs 1 mo
An education services organization that offers over 40 courses in various subjects for both children and adults with 40+ employees that spans four branches. Spearheaded the creation of several SQL Server database systems in collaboration with managers of different departments, in addition to providing ad-hoc queries on request. • Design database systems based on requirements: Collaborated with managers to analyze the prior Excel based database to formulate proper business rules, and logic, in order to create an improved, fully normalized SQL Database. ER diagrams were further used to create tables and foreign keys relations. • Creating Views/Stored Procedures/Triggers: Stored procedures and Triggers used in concert with C# Winforms to provide data entry capabilities to the interface used by Front Desk Staff. • Utilizing CTEs, Pivots, Merges, Dynamic SQL: CTEs, Pivots, Merges and Dynamic SQL facilitated the display of information for more complex queries and requests that were required by different departments • Migrating SQL Instances: Migration from initial SQL SERVER 2017 to 2014 Express and MDFs from versions 869 to 782, and SqlLocalDB from v14 to v12 in order to install on Windows 7 machine.

Education

Bachelor of Science (BS)
Bachelor of Science Aerospace Engineering
2012 - 2016
Activities and societies
Tamkang UAV Team