Open to opportunities

Jeffrey Kim

@jeffreykim

Message

Versatile full-stack software engineer specializing in Web3, cloud architecture, and AI integrations.

United States

Message

What I'm looking for

I seek an engineering role where I can build scalable, user-centric products using cloud-native architectures, Web3, and AI, within collaborative Agile teams that value continuous delivery and technical ownership.

I am a versatile software engineer with extensive full-stack experience across web, mobile, and cloud platforms, focusing on React, Node.js, Java, Python, and modern DevOps practices. I build scalable systems and have delivered features spanning event tech, gaming, logistics, HR tech, and Web3.

My work includes leading mobile-first and SSR initiatives, integrating blockchain smart contracts and tokenized rewards, and applying generative AI to enhance user engagement. I have migrated services to GCP/AWS, optimized relational and NoSQL databases, and implemented CI/CD, container orchestration, and observability tools to improve performance and reliability.

I work well in Agile, cross-functional teams and emphasize test-driven development, real-time systems, and product-driven engineering to deliver measurable business value and improved user experiences.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Evite

Nov 2024 - Aug 2025 (9 months)

Led development of mobile-first features and SMS invitations using Twilio, migrated backend to GCP, and implemented SSR with Next.js to improve performance and engagement for a freemium event platform.

React Next.js GCP Google BigQuery PostgreSQL MySQL Twilio

Frontend Software Engineer

GameOn Technology

Oct 2022 - Jun 2024 (1 year 8 months)

Spearheaded a Web3 fantasy sports platform using Solidity and Arbitrum, integrated LLM-driven AI features, and built real-time gameplay with WebSockets and wallet integrations to increase user engagement.

React Next.js Solidity Arbitrum Web3.js WebSockets Python MongoDB

Software Engineer

Super League Gaming

Jul 2020 - Oct 2022 (2 years 3 months)

Led development of the Minehut server hosting dashboard with React, implemented MinIO backups, and managed containerized services on GKE to support scalable Minecraft server management for millions of users.

React MongoDB GKE Docker Minio AWS Kubernetes

Software Engineer

ADP

Dec 2018 - Nov 2019 (11 months)

Rebuilt front-end for ADP Workforce Now using React and Angular, migrated to microservices with Spring Boot, and integrated Apache Spark for large-scale analytics to improve performance and reporting.

React Angular Java Spring Boot MySQL Apache Spark AWS Microservices Cloudflare

Software Engineer

Inspective

Aug 2018 - Jan 2019 (5 months)

Developed a cross-platform Electron application with IPC communication and Node.js child processes, optimizing performance and building a scalable SPA with React.

Electron C# .NET Node React Webpack Performance Optimization SPA Architecture

Software Engineer Intern

UPS Supply Chain Solutions

May 2017 - Jan 2018 (8 months)

Modernized a logistics dashboard using AngularJS and GCP, built RESTful Spring Boot APIs, and integrated Apache Kafka for real-time shipment data streaming and improved tracking.