Full Stack Developer

What you'lldo • Design and implement backend REST APIs using Java + SpringBoot • Build Dashboard frontend features using Next.js / React /TypeScript / Tailwind CSS, including data views, forms, charts (Recharts), and PDF export interactions • Design data models and write migration scripts on PostgreSQL(with pgvector) + MyBatis-Plus / Flyway • Work with AWS cloud infrastructure (RDS, ElastiCache, SQS, S3, Secrets Manager), including deployment and operational troubleshooting • Write unit tests (JUnit 5 / ArchUnit) and end-to-end tests(Playwright) to uphold code quality and architectural constraints • Collaborate with product, finance, and operations teams to turn PRDs into maintainable, extensible technical solutions Requirements • Bachelor's degree or above in Computer Science or a related field, or equivalent work experience • 5+ years of full-stack or front-/back-end engineering experience, able to independently deliver complete features from frontend pages to backend endpoints • Proficient in Java + Spring Boot (MyBatis-Plus, Spring Security, RESTful API design) • Proficient in React / Next.js + TypeScript, with a solid understanding of the App Router, componentization, and state management • Strong command of PostgreSQL relational database design and SQL tuning, and of migration tools such as Flyway • Hands-on experience with AWS services, covering at least two of RDS, S3, SQS, ElastiCache, and Secrets Manager • Proficient with AI coding tools (e.g. Claude Code, Cursor, GitHub Copilot) to accelerate day-to-day development, and able to review and validate AI-generated code before safely integrating it into production • Excellent engineering fundamentals: clean code, design patterns, automated testing, Git-based collaboration • Able to work from a PRD / technical design doc to independently break down requirements and turn them into a technical solution • Hands-on experience with Docker and GitHub Actions CI/CD • Able to read and write Chinese, and comfortable reading Chinese technical docs/PRDs • Good written and spoken English Nice to have • Hands-on experience building and integrating a Node.js /TypeScript + LangChain / LangGraph AI agent service (knowledge-base retrieval, conversational workflows, business tool calling) • Experience with LLM agent orchestration frameworks such as LangChain / LangGraph / LlamaIndex, or with RAG (retrieval-augmentedgeneration) application development • Experience with vector databases (e.g. pgvector) or semantic search • Experience integrating with the WhatsApp Business API /Meta Cloud API or other messaging platforms • Background in finance/property management/ERP-style SaaS product development