Application Engineer C#

Chong-Kit (Thomas) Chai

Livingston, NJ. ***** 862-***-**** ********.****@*****.*** https://www.linkedin.com/in/chongkitchai/

Senior Full Stack Application Engineer

Results-driven Senior Full Stack Application Engineer with extensive experience designing, developing, and implementing scalable software solutions. Expertise in system architecture, cloud-based applications, and cross-functional team leadership. Adept at utilizing diverse technologies to optimize system functionality and enhance user experience.

Key Skills

Software

ASP.net Core API, ASP.net, C#, Angular 14, ReactJS, HTML, JavaScript, JSON, MuleSoft, Tableau Report, DataWeave, Crystal Report, NUnit Test, XUnit Test, Ajax, Bootstrap, jQuery, CSS, SCSS, XML/XSLT, XPath

Database

Microsoft SQL Server, Sybase SQL Anywhere, Oracle

Tools

GitHub, TFS, Jira, Agile, Confluence

System

Microsoft Azure, AWS, Windows, Linus, SAN, UNIX

Work Experiences

Wells Fargo - Senior Full Stack Application Engineer January 2022 – Present Islin, NJ, USA

Project: Fund Categorization – Cloud-Based Application (FUNCAT) This cloud-based workflow application allows nationwide bank financial advisors to manage customer loan requests effectively.

Spearheaded the development of the front-end application using Angular, ensuring seamless communication with the microservice APIs.

Successfully implemented Ping Federation Single Sign-On (SSO) for enhanced application security, ensuring compliance with industry standards.

Engineered ASP.net Core microservices with C# backend, reducing data retrieval time by 30% while ensuring efficient API orchestration.

Designed and implemented RESTful APIs within a cell-based microservices architecture, optimizing modular service interactions

Utilized xUnit APIs test to achieve 98% code coverage, significantly improving application reliability.

Collaborated with cross-functional teams to deliver the application within projected deadlines, supporting nationwide deployment.

Achievements:

Increased loan application processing speed by 25% through microservices-based optimizations.

Recognized for developing a secure and scalable solution used by financial advisors nationwide.

Project: Enterprise Testing and Validation (ETAV) ETAV is an internal tool utilized for regulatory compliance testing and validation, streamlining data extraction and workflow processes.

Led daily Scrum meetings, fostering team collaboration and ensuring alignment with project milestones.

Enhanced client UI capabilities using ReactJs, boosting user satisfaction scores by 50%.

Developed C# Core Entity Framework API endpoints to facilitate efficient data retrieval for clients.

Created and executed NUnit test cases and APIs test, ensuring microservices reliability and reducing defects by 90%.

Collaborated on API gateway solutions, supporting secure and efficient request routing across microservices.

Achievements:

Automated regulatory compliance testing, saving an estimated 10 hours per week per user.

Played a pivotal role in implementing workflow functionality, improving operational efficiency for validation teams.

PVH - Senior Software Engineer October 2015 – January 2022 Bridgewater, NJ, USA

Project: Integration & Automate Applications using MuleSoft Collaborated across departments to develop, integrate and automate applications, streamlining workflows and enhancing data processing capabilities through microservices-base API management.

Designed and deployed MuleSoft-base microservices Integration workflows, reducing manual data handling by 50% while enabling scalable API orchestration.

Transformed raw data (JSON, XML, CSV) into actionable insights using DataWeave, improving team efficiency.

Automated data transfer process via SFTP, ensuring error-free delivery to associated teams.

Developed robust API error-handling mechanisms, minimizing downtime and high system reliability.

Achievements:

Led a cross-functional team in integrating multiple cloud environments (Azure, AWS) cutting project timelines by 50%.

Recognized by management for implementing scalable solutions that saved the company fund annually.

Project: Wholesale Decision Support (WDS) Data Entry website Redesigned and developed a responsive website for wholesale vendors, enhancing inventory data management.

Implemented ReactJs and Bootstrap frameworks, delivering a responsive, user-friendly interface compatible with iOS and Android devices.

Integrated third-party frameworks (Infragistics) for advanced data grid functionalities, improving user productivity.

Secured application login processes, increasing security standards.

Migrated legacy data to Oracle, ensuring seamless data retrieval and storage.

Achievements

Increased user engagement by 25% with the redesigned UI/UX.

Successfully delivered the project within budget and ahead of the deadline, earning team accolades.

Project: Assortment Advice (AA) Developed and enhanced administrator web pages, providing vendors with secure login and user management capabilities.

Designed a secure, scalable interface using AngularJS and .NET, boosting login success rates by 20%.

Implemented third-party frameworks (Infragistics), increasing efficiency in data manipulation tasks.

Achievements:

Recognized for reducing system downtime by 15% with backend optimizations.

Improved user data security compliance to meet corporate standards.

Cisco Systems February 2014 – August 2015 Whippany, NJ, USA

Software Engineer

Project: Develop and automate testing for Solid State Storage Array System (SSA) Conducted software-automated regression test of SSA, including troubleshooting and reporting the results; designed and reviewed test plans, test cases, scripts and procedures; developed automated testing scripts for manual test cases, with the goal of 100% automation; updated automated test scripts to ensure currency; and participated in product design reviews to provide input on functional requirements, scheduling, and potential problems.

Created and cloned Windows 2008/2012 virtual machine (VM).

Cloned and reconfigured the IQN and IP in the Red Hat Linux host system.

Installed and reconfigured the multipath IO profile in the Red Hat Linux host system.

Used .Net 4.0+ framework and Microsoft Studio C# environment for the regression automation.

Created SSA automation test script using Microsoft PowerShell.

Automated SSA Logic Unit Number (LUN) mounting either to Windows and Linux host system using Microsoft C#.

Calculated the LUN input and output (IO) performance, data latency.

Used the GIT Extension to save and share the code for teams.

Used the Linux SSR SCSI command to manual re-produce and troubleshoot the issue.

Used the Selenium web driver command to design and automate GUI performance.

Submitted software defects using Bugzilla tracking system with appropriate priority and severity and report defects to software developers.

Assisted colleagues in debugging and fixing code issues.

Trained new colleagues on sanity and regression automation procedures.

Project: Create and develop local intranet website Developed and managed a dashboard for product teams to publish all test results and for management team to review key performance indicators for decision-making. The dashboard is mobile agnostic thus can be accessed by all mobile devices, such as iOS and Android phones.

Used .Net 4.0+ framework, ASP.Net and C# for code development.

Implemented jQuery and associate CSS to enhance the website.

Used Bootstrap 3.0 client-side framework design for mobile-friendly UI.

Saved and retrieved data using Microsoft SQL Server 2012 database.

Program Microsoft SQL Server Store procedures to manipulate data.

Rymax Marketing Service Inc. May 2010 – February 2014 Pine Brook, NJ, USA

Web Application Developer

Project: Redesign of Corporate Web Site (http://www.rymaxinc.com)

Project: eCommerce Client Websites

Micro Graphic Information Services Corp August 1999 – April 2010 Saddle Brook, NJ, USA

Project Leader

Project: Web Content Management

Education

Bachelors of Science, B.S. in Computer Science 1995 - 1999

New Jersey institute of Technology

Certifications

Microsoft Azure Fundamentals Cloud – AZ-900 12/28/2022

Credential ID: CE6B448D48F1DF2

Certification number: 5M7417-E8A8B4

Microsoft Artificial Intelligence – AI-900 09/09/2024

Credential ID: A4A89C71BED78225

Certification number: 23614B-795G09

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