Open to opportunities

Joshua Cho

@joshuacho

Message

Senior full-stack engineer building scalable cloud-native and AI-powered applications.

United States

Message

What I'm looking for

I’m looking for a role where I can lead architecture and delivery for cloud-native full-stack products and AI-powered applications—building reliable production systems, improving scalability/performance, and collaborating cross-functionally to ship confidently.

I’m a Senior Full-Stack Software Engineer focused on designing and building scalable web applications, backend services, REST APIs, and cloud-native systems—especially AI-powered applications. I enjoy turning complex requirements into reliable production software, with strong attention to architecture and system design.

In recent roles, I built AI application platforms supporting 10,000+ users by developing scalable backend services, developer tools, REST APIs, and production AI workflows. I’ve improved LLM workflow reliability by 25%, reduced API latency by 30%, and increased system availability by 20% through distributed systems and monitoring/evaluation pipeline work.

I bring hands-on technical leadership across architecture decisions and delivery. I’ve automated CI/CD pipelines and cloud infrastructure provisioning to reduce deployment time by 40%, and I collaborate with product, engineering, and research teams to design and implement AI capabilities—improving developer experience and feature iteration speed by 25%.

Earlier, I led and built enterprise B2B and secure government-grade systems, modernized legacy services, and optimized database/workflow performance. I’ve supported mission-critical web applications by improving reliability and performance (including 25% and 30% gains), while maintaining strict security and quality standards.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Humanloop

Feb 2025 - Jun 2026 (1 year 4 months)

Developed AI-powered full-stack application platforms and production AI workflows supporting 10,000+ users. Designed and optimized REST APIs, monitoring, evaluation pipelines, and CI/CD/cloud automation to improve reliability, latency, and deployment speed.

Python TypeScript REST APIs fastAPI Microservices API Design Distributed Systems CI CD GitHub Actions Docker Kubernetes Terraform Monitoring Evaluation Pipelines LLM Applications Production Workflows

Project Lead Developer

Orderln

Jun 2024 - Dec 2024 (6 months)

Developed and enhanced an enterprise B2B e-commerce ordering platform with full-stack technologies, RESTful APIs, and cloud/DevOps automation. Led engineering execution through architecture decisions and collaboration to deliver reliable ordering solutions.

REST APIs API Design Frontend Development Backend Services Cloud Infrastructure DevOps Automation Databases CI CD

Full-stack Developer

Ministry of National Defense, Republic of Korea

Sep 2022 - Sep 2024 (2 years)

Developed secure, mission-critical web applications with backend services, RESTful APIs, and database systems supporting defense operations. Modernized legacy systems and streamlined secure development and deployment workflows to improve performance and delivery cycles.

REST APIs Backend Services DataBase Systems Microservices System Integration CI CD Web Security Performance Optimization

Lead Application Developer

Daesang Corporation

Dec 2022 - Mar 2024 (1 year 3 months)

Developed enterprise applications to improve operational efficiency through optimized workflows and scalable software solutions. Led a team of 10 developers and built cloud-backed full-stack applications using Vue/Nuxt.js, REST APIs, databases, and cloud infrastructure.

Vue.Js Nuxt.Js REST APIs Backend Services Mobile Frameworks Databases Cloud Infrastructure Workflow Optimization System Reliability Team Leadership

Technical Lead / Full-Stack Developer

Self-Employed

Jun 2021 - Mar 2022 (9 months)

Developed a COVID-19 vaccine tracking mobile application with optimized backend services and reliable data synchronization for unstable network environments. Built community-driven tools and applications reaching 10,000+ daily users.

Backend Services Synchronization Performance Optimization

Project Intern

Seoul National University Hospital

Feb 2018 - Present (8 years 8 months)

Participated in research on youth hearing loss and impairment and contributed to data-driven analysis. Built a custom Python-based statistics pipeline to automate data collection, processing, and analytical workflows.

Python Data Pipelines Data Processing Statistics Data Analysis

Education

Degrees, certifications, and relevant coursework

University of Washington

Bachelor of Engineering

2017 - 2022

Earned a Bachelor of Engineering with coursework in software engineering, algorithms and data structures, operating systems, distributed systems, and database systems.

Edmonds College

Associate of Engineering

2015 - 2017

Completed an Associate of Engineering with coursework in programming fundamentals, algorithms and data structures, databases, and software engineering principles.