Full Stack .NET Developer

HUDSON H CHOI

Palisades Park, NJ 201-***-**** ***********@*****.*** LinkedIn

FULL STACK .NET DEVELOPER

Results-driven full stack .net developer with extensive experience in designing, developing, and maintaining scalable web applications, APIs, and ETL solutions in AWS and .NET environments for healthcare, finance, government and entertainment. Adept at full SDLC support, from requirement gathering, architecting, developing to production support, in a small and a large team. Strong expertise in building intuitive UI and automating workflows to enhance operational efficiency. Proficient in developing high-performance applications w/ C#, ASP.NET, MVC, JavaScript, jQuery, Web API, SQL Server, and AWS services. Detail-oriented and highly motivated to deliver reliable, maintainable, and efficient software solutions overcoming any challenges thrown at.

CORE PROFICIENCIES

C# .NET Framework & Core ASP.NET MVC ASP.NET Web API JavaScript & jQuery SQL Server SSIS Entity Framework

WCF Silverlight WPF AWS Lambda, API Gateway, Step Functions, RDS, DynamoDB, S3, ECR, IAM, Cognito, SQS and SNS Node.js

Docker Classic ASP Python (Pandas, NumPy) Perl (Poet, Mason) Java (Struts) Bootstrap (D)HTML CSS Crystal Reports

MySQL Oracle 9i RESTful Services Serverless Microservices Architecture OAuth2 & JWT Authentication ETL

EDI Agile & Scrum Software Development Life Cycle (SDLC) Performance Tuning & Optimization CI/CD IIS JIRA Git TFS

PROFESSIONAL EXPERIENCE

AstraZeneca Gaithersburg, MD Nov 2021 to Present

Software/Data Engineer

Develop and maintain AWS-based instrument data applications supporting laboratory automation being involved in full SDLC. Design and implement scalable solutions for experiment management, data processing, and secure file handling. Build RESTful APIs, ETL pipelines, and interactive web applications to improve data accessibility and workflow efficiency.

Developed a web app for experiment design with drag-and-drop process recipes, file uploads, and automated PDF report generation (C#, ASP.NET MVC, jQuery, Telerik, EF, Web API, AWS S3 and RDS SQL Server).

Built a serverless ETL system applying SOLID design principles (to improve maintainability) to parse various types of instrument data files including PDF format storing parsing logic in JSON configuration data (C#, AWS S3, Lambda, API Gateway, RDS, DynamoDB, SQS, SNS, ECR and Docker)

Implemented a JWT-authenticated REST API to upload file w/ metadata data tagging and download file/folder (C#, AWS S3 and RDS).

Designed a REST API to automate experiment processes between Hamilton and DLIMS, reducing manual effort (C#, AWS API Gateway, DynamoDB & C#).

Created an interactive visualization web app for absorbance data mapping, enhancing automation between Tecan and Hamilton (Python, Plotly Dash, Pandas and Numpy etc.).

Infotree Global Solutions Corp Plymouth, MI Nov 2020 to Nov 2021

Application Engineer

Analyzed laboratory data challenges and developed AWS solutions to streamline automated instrument data processing as a member of Data Science and Modeling Department in AstraZeneca

Developed a high performance multi-threaded instrument data lake processing app for large-scale data ingestion handling TBs of data, tagging files with metadata to enhance accessibility and retrieval (C#, Windows Form, Windows Services, AWS S3 and RDS)

Created an automated toxic material data sync application between AstraZeneca and ITRAX consuming APIs (C# and SQL Server)

ConnectiveRx Whippany, NJ Apr 2016 to Sep 2020

Engineer, Application Development

Designed and developed enterprise applications, ETL pipelines, and API solutions supporting healthcare data management. Ensured compliance with business requirements through Agile methodologies and DevOps integration. Built robust data processing applications and scalable services to streamline patient enrollment, transcription, and claims processing.

Developed a document processing API to merge PDFs and generate CSVs using C# .NET Core, AWS Lambda, S3, and DynamoDB.

Engineered a patient mastering system that integrates client APIs for accurate data sync with Amgen.

Created a transcription system for automated voice data processing using Node.js, AWS Lambda, AWS Step Functions, and DynamoDB.

Designed ETL solutions for patient data import utilizing Node.js, AWS Lambda, AWS Step Functions, and DynamoDB.

Implemented EDI (835 & 837 formats) claim processing for pharma clients in C#, enabling two-way patient data interchange via SSIS

Built multiple ASP.NET MVC websites for patient data collection to showcase new drugs.

Blue Sky MLS, Inc Parsippany, NJ Dec 2015 to Apr 2016

Application Developer

Designed and implemented regulatory compliance web-based software for electronic filing and PDF report generation. Developed asynchronous multi-document printing and XML-based reporting solutions using .NET and Crystal Reports. Created a web-based compliance system integrating XML submission and Crystal Report PDF generation for mutual funds regulatory filing.

VideoBank Northvale, NJ Nov 2011 to Dec 2015

Software Developer

Developed large-scale video and digital asset management solutions for government, educational, and non-profit clients.

Created an intelligence surveillance and reconnaissance web app featuring media ingestion, attribute tagging/search, admin monitoring, batch upload, drag-and-drop playlist creation, and real-time chat (C# Web Forms/MVC, Silverlight, WCF, EF and SQL Server).

Developed an online collaboration system for remote meetings with media ingestion, searching, live chat, real-time annotation/whiteboard, video camera PTZ control, video redaction, and ESRI map integration (C#, Silverlight, jQuery, AJAX, WCF and SQL Server).

UGO Entertainment Inc. NYC Jun 2008 to Aug 2011

.NET/CMS Developer

Developed custom full-stack CMS systems and .NET applications for advertisers.

Created a custom .NET CMS to publish articles, DVD titles, characters and image galleries per genre (C#, jQuery and SQL Server).

Developed middle-tier XML applications for Flash, sweepstakes registration, comment systems, and Modern Day Warrior Game built w/ Silverlight featuring moving around and shooting enemies as one of the Microsoft Windows Consumer Ad Campaign Deals.

Built a ugo.com CMS, adapted from the Hearst CMS, for publishing articles by type and channel (Perl, Mason, Poet, MySQL and AJAX).

Axis360 Inc. NYC Jun 1999 to May 2008

Senior Programmer

Developed full-stack web applications for retail, entertainment, healthcare and financial clients.

Built a custom e-commerce system for Briggs & Riley with a real-time XML UPS shipping calculator, shopping cart, product/order/tax manager, and PayPal/Authorize.net integration (C# Web Forms, jQuery and SQL Server).

Created a style guide CRM system for Major League Baseball, managing licensed team style digital assets, customer specific permissions to assets, download tracking, site analytics, and an email blaster for members (C# Web Forms, jQuery, Web Service and SQL Server).

Developed a member-based dynamic website for Thompson Professional Postgraduate with a custom UI, search functionality, ActiveX COM integration to update PowerPoint files, daily Reuters health news, and ad banner tracking etc.

Developed a letter management intranet system for Citibank, enabling local financial centers to order letters for customers combining the customer data and the letter meta data FTPing data to a local printing shop to print (Perl, DBI:DBD, Oracle 9i on Solaris).

EDUCATION & CERTIFICATIONS

The University of Georgia Athens, GA

Master’s in Computer-Based Education 1995 GPA - 3.92/4.00

INHA University South Korea

Bachelor of Science 1991, Received Scholarship

Microsoft Certified Professional – Developing and Implementing Web Applications

Sun Certified Java Programmer 1.1 IBM Certified Solutions Expert – Net.commerce

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