🌏
Trilingual by default
Native in Korean, English, and Chinese — educated at Shanghai High School International Division, certified with HSK 6 and OPIc AL. I work without language barriers.
Open to new opportunities
Turning customer challenges
into scalable solutions.
Jihwan Park — a trilingual (Korean · English · Chinese) software engineer in Seoul, working across backend systems, data pipelines, and enterprise AI at ThinkingAI.
- 3
- Native languages
- 2+ yrs
- Production backend
- 10+
- Enterprise clients
- 4.05
- GPA / 4.5 at SKKU
About
Three things about me
An engineer shaped by three cultures — comfortable deep in systems, and just as comfortable in front of customers.
⚙️
Systems that scale
Experienced in system design and large-scale data pipelines across the psychological counseling, advertising, and gaming industries — built to be maintainable and observable.
🤝
Customer-facing engineer
From requirements analysis to technical support, I sit between customers and the product — translating real challenges into scalable technical solutions.
Beyond workRunning 80km a monthDaily morning workoutOne book a month
Experience
Where I've built
From production backend systems to enterprise AI deployments.
T
Technical Support Engineer
ThinkingAI · Game Analysis Platform & Enterprise AI
Agentic Engine · Enterprise AI Platform
- Supported 10+ enterprise clients by troubleshooting deployment, infrastructure, and platform issues — including server configuration, installation, firewall settings, and platform usage.
- Designed onboarding and migration strategies for SaaS and on-premise deployments, covering SDK integration, infrastructure configuration, and data migration.
- Translated customer requirements into AI-powered features and product enhancements.
- Built AI-powered internal workflows to automate issue diagnosis and customer support processes.
SaaS & On-premiseSDK IntegrationAI Workflows
S
Backend Developer
Smartdoctor · Hospital CRM & Ad-Reward Platform
Sangdam Today · Psychological Counseling CRM
- Designed an automated data-migration pipeline, reducing customer onboarding time for 10+ enterprise clients.
Cash Review · Ad-Reward Platform
- Led infrastructure and database migration during an M&A using AWS Elastic Beanstalk, RDS, Route 53, and DMS.
- Redesigned the distributed push-notification architecture by centralizing distributed cron jobs into a dedicated scheduler — improving maintainability and observability.
AWSData MigrationScheduler Architecture
Projects
Selected work
From RAG-powered chatbots to a client-commissioned web platform.
🤖
Agentic Kingobot
Personalized academic-information chatbot
Full Stack Developer · Team of 4 · Oct — Dec 2025
- Implemented a RAG system utilizing LangChain and a vector database.
- Integrated a Redis cache to maintain and manage session-based conversation history.
RAGLangChainRedis
🩺
Biolens
Health-checkup analysis chatbot
Backend Developer · Team of 4 · Oct — Dec 2025
- Architected a RAG system to process and store standardized health-checkup data, such as reference ranges for clinical categories.
- Developed citation-based response generation for reliable health-checkup explanations.
RAGVector DBCitations
🏨
Raum Stay
Accommodation facility website
Full Stack Developer · Solo, client project · Feb — Mar 2026
- Adopted a monorepo structure to manage the client homepage, admin dashboard, and portal page.
- Developed a local-storage-based analytics module to track DAU, WAU, and MAU.
MonorepoAnalytics
Skills
What I work with
Shaped by production backend work, cloud migrations, and customer-facing engineering.
🧠
AI & Data
RAG SystemsLangChainVector DatabaseRedisData Pipelines
⚙️
Backend & Systems
System DesignBackend DevelopmentNotification ArchitectureMonorepo Structure
☁️
Cloud & Infrastructure
AWS Elastic BeanstalkRDSRoute 53DMSSaaS & On-premise Deployment
🤝
Customer Engineering
Technical SupportCustomer Requirements AnalysisOnboarding & Migration StrategySDK Integration
Education
Education & credentials
An engineering double major, student leadership, and certifications across three languages and the cloud.
Sungkyunkwan University
GPA 4.05 / 4.5B.S. in Industrial Engineering · Double major in Computer Science
Sep 2020 — Aug 2026 (expected)
- CoMit, SKKU Programming Club — Leader (Sep 2022 – Aug 2023)
- SKKRYPTO, SKKU Blockchain Academy — Leader (Sep 2022 – Aug 2023)
- Industrial Engineering Student Union — Member (Sep 2021 – Jun 2022)
Shanghai High School International Division
High School Diploma
Sep 2014 — Jun 2020
Contact
Let's build something together.
Open to new opportunities and collaborations — in Korean, English, or Chinese.