11.03.2026 aktualisiert
100 % verfügbar
Senior Full-Stack Engineer | Backend Specialist (Java, NestJS) | 10+ Years Exp.
Paju-si, Südkorea
Weltweit
Computer science, BachelorÜber mich
10+ years of Backend Excellence. I bridge the gap between complex business requirements and scalable architecture. As the founder of AgravityLabs, I deliver not just code, but production-ready services. Expert in Java/NestJS and AI-assisted engineering for maximum efficiency.
Skills
FlutterJavaAPIsKünstliche IntelligenzAutomatisierter HandelAmazon Web ServicesArchitekturAutomatisierungMobile Application DevelopmentSoftware QualityDatenbankenCursor (Graphical User Interface Elements)Datenbank-SchemaFinanzenGitHub
Senior Full-Stack Engineer | Backend Architect | 10+ Years Experience
Core Technical Expertise:
Backend: Java (Spring Boot, Spring Cloud, Legacy Frameworks), NestJS, Node.js, Python
Frontend: ReactJS, Vue.js, Flutter (Cross-platform Mobile Development)
Database & Infrastructure: MySQL, PostgreSQL, Redis, MongoDB, Docker, Kubernetes, AWS/GCP
AI & Automation: Advanced proficiency in AI-driven development (Cursor, GitHub Copilot, LLMs) to ensure high-speed delivery and robust code quality
Professional Highlights:
Legacy Modernization: Specialized in analyzing and migrating complex legacy Java systems into modern microservices architectures (NestJS/React)
Full-Cycle Ownership: Proven track record in managing the entire product lifecycle—from DB schema design and API architecture to deployment and SEO
Data-Driven Solutions: Developed automated crypto trading systems (Python/Binance API) and high-performance financial charting tools
Business Experience:
Founder of AgravityLabs: Successfully launched and operating global services like https://www.google.com/search?q=fortune.agravitylabs.com, handling everything from system architecture to monetization (AdSense/AdMob)
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2021
Sprachen
EnglishverhandlungssicherKoreanMuttersprache
Projekthistorie
• Founder of AgravityLabs, an AI-driven product lab transforming ideas into scalable digital solutions.
• Developing "AgravityLabs Fortune" (Web & iOS), a data-driven Saju-Myeongri platform.
https://fortune.agravitylabs.com
• Implementing complex metaphysical algorithms through modern UI and algorithmic five-element analysis.
• Tech Stack: Next.js (Frontend), Flutter & Dart (Mobile), Python (Backend logic), and AWS.
• Focus on de-framing traditional concepts into practical, action-oriented insights using probabilistic data models.
Developed a modular REST API for a teacher-student matching platform.
AWS Serverless Architecture: Built scalable infrastructure using Lambda, API Gateway, and Route 53.
Automation: Integrated Stripe (Payment) and Google Calendar API (Scheduling) for a seamless user lifecycle.
Implemented RBAC and Google OAuth 2.0 for high security.
Tech-Stack: NestJS, TypeScript, MariaDB, TypeORM, AWS (Lambda/S3), Stripe, Google API.
Internalized development processes that were previously outsourced to Vietnam.
Led the backend and infrastructure development for the "BatonMarket" app.
Managed AWS infrastructure and implemented new core features.
Tech-Stack: AWS Lambda, TypeScript, Infrastructure Management.