Open to opportunities

Jay Yoo

@jayyoo

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Software engineer specializing in scalable web applications and frontend architecture.

United States

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What I'm looking for

I seek a software engineering role at a growth-oriented company where I can build scalable web applications, improve UX, and contribute to clean architecture, testing, and CI/CD practices.

I am a software engineer with over eight years of experience across SaaS, mobile device, finance, and technology sectors, focused on delivering maintainable, high-performance web applications.

I specialize in frontend frameworks including Angular, React, and Vue, and backend technologies such as Java Spring and ASP.NET, having built microservices, RESTful APIs, and CI/CD pipelines to support millions of users.

My accomplishments include designing large-scale network visualizations, contributing to 100% retention for 7M+ affiliate users, delivering microservices to financial institutions, and managing technical approval processes for mobile devices.

I value clean architecture, test-driven development, and cross-functional collaboration, and I seek opportunities where I can innovate, improve user experience, and scale robust web platforms.

Experience

Work history, roles, and key accomplishments

Current

Angular Frontend Developer

Current

Tellabs

Dec 2024 - Present (10 months)

Developed and maintained a scalable Angular web application for EMS servers in a Passive Optical Network, built large-scale Cytoscape.js topology visualizations, and implemented secure authentication and role-based authorization to improve maintainability and access controls.

Angular TypeScript Cytoscape RESTful APIs Authentication CI CD Responsive Design

Java Full Stack Developer

Impact Radius

Apr 2021 - Sep 2022 (1 year 5 months)

Developed and debugged Java Spring web applications on Tomcat, managed web services and repositories for 7M+ affiliate users, improved UI responsiveness by resolving regular bugs, and maintained Jenkins CI/CD pipelines for biweekly deployments.

Java Spring MVC Apache Tomcat Jenkins SQL Junit RESTful APIs JavaScript

C# .NET Developer

Alkami Technology

Jul 2017 - Sep 2020 (3 years 2 months)

Designed and implemented ASP.NET MVC applications and microservices using C#, applied TDD with NUnit and dependency injection to accelerate deployments, and optimized CI/CD pipelines and database migrations for financial institutions.

C++ASP.NET MVC Entity Framework NHibernate NUnit Dependency Injection Jenkins Microservices

Full Stack Developer

HaulMe

Jan 2017 - Jun 2017 (5 months)

Revamped frontend architecture with AngularJS, developed a Java-based real-time notification service with Maven, and enhanced ExpressJS RESTful endpoints, collectively reducing errors and improving performance and reliability.

AngularJS Java Maven ExpressJS RESTful APIs Frontend Architecture

Project Manager

Samsung

Jul 2012 - Feb 2016 (3 years 7 months)

Managed technical approval for new Samsung mobile devices, coordinated cross-regional engineering and support teams, analyzed 1,000+ technical requirements per device, and secured approvals for eight devices from multiple vendors.

Project Management Technical Approvals Vendor Management Release Management