Available to hire
Hi, I’m Haram Lee, a full-stack developer with expertise in backend technologies and frontend frameworks. I’m proficient in CI/CD, Docker, and AWS, enabling independent MVP development. I’ve contributed to startup MVPs and commercial service launches, and I’m skilled at understanding client and team needs to deliver effective solutions in Agile environments.
I enjoy turning ideas into robust, scalable software and collaborating with product and design teams to ship high-quality experiences. I’m always eager to learn new tools and practices to improve efficiency, reliability, and impact.
Skills
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Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Expert
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Expert
Expert
Expert
Expert
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Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
Korean
Fluent
English
Advanced
Work Experience
Full-Stack Developer at James Worldwide Inc
March 1, 2025 - August 1, 2025Led end-to-end development of an AI tool for extracting key logistics data (B/Ls, invoices), cutting manual input time by ~70%. Built a modular LangChain + FastAPI pipeline with batch upload, fallback handling, and prompt-based field controls. Integrated Qdrant to enhance company name matching and reduce CRM duplication. Embedded extraction features into the internal portal, enabling operations teams to review and validate data faster, streamlining verification workflows.
Full-Stack Developer at Deepscience
September 1, 2023 - January 1, 2024Built an MVP for a startup project aimed at delivering actionable investment insights. Developed the full-stack components and integrated the Korea Investment & Securities (KIS) OpenAPI to provide real-time market data, demonstrating experience with secure, enterprise-level API integration. Deployed the platform on AWS EC2, configured load balancing, and set up Route 53 for domain management and traffic routing to ensure scalability and high availability.
Back-End Developer at PAWSOMEDAY
September 1, 2024 - December 1, 2024Developed a notification and scheduling app for dog daycare centers based on field research. Built RESTful APIs using Node.js and Express, integrated Firebase Auth for secure authentication, and AWS S3 for file storage. Implemented booking management, photo-sharing, and notification features to enhance communication between daycare centers and clients. Automated deployment and delivery using CI/CD pipelines with PM2 and GitHub Actions.
Front-End Developer at Mango Diary
July 1, 2024 - August 1, 2024Developed the frontend of an AI-powered emotional diary service using ReactJS, Zustand, React Query, and MUI (emotion). Integrated AI-generated feedback to provide users with insights on emotional states and patterns. Participated in the Like Lion Hackathon with 1,600+ participants, hosted by Korea's largest developer community.
Back-End Developer at CareerCup
September 1, 2022 - February 1, 2023Built a real-time coffee chat matching platform with Spring Boot, Flyway, PostgreSQL, WebSocket, and STOMP. Designed RESTful APIs for matching and user management, implemented real-time messaging, and built an admin dashboard for monitoring activities.
Education
Bachelor of Science at Kookmin University
March 1, 2021 - February 1, 2025Qualifications
Industry Experience
Software & Internet, Media & Entertainment, Education, Professional Services
Skills
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Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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