Hire the Best UML Developers in Jakarta, ID

Hi, I am experienced Software Quality Assurance with years hands-on experience in the field. Having graduated with a degree in Computer Science. About me: • Experience in implementing and creating test plan, scenarios and cases. • Manual testing experience – regression, functional, exploratory. • Familiar with Agile methodology • Good analytical skills and an inquisitive mind • Detect, log and take ownership of issues and defects • Write automated test cases with Katalon • Testing web and mobile applications • Experience in APIs & Performance testing. (Postman & JMeter)

🚀 Full-Stack Developer | QA Automation Engineer | Playwright Expert Hi there! I’m a passionate Full Stack Developer and Automation Engineer with a track record of building high-quality web applications and ensuring seamless performance through thorough manual and automated testing. I specialize in: ✅ Developing responsive and dynamic apps with ReactJS, Node.js, TypeScript, and MongoDB, and other stack as well. ✅ Manual & Automation Testing using Playwright, Postman, and other modern tools ✅ Creating and maintaining scalable backend systems with clean, efficient code ✅ API testing, bug reporting, cross-browser testing, and regression testing ✅ Building smooth UI/UX experiences while catching edge cases before they reach production ✅ End-to-end website and web application development from the ground up ✅ Seamless API integrations (RESTful and third-party services) ✅ Secure payment gateway integration – PayPal, Stripe, and more ✅ Real-time chat functionality for one-on-one and group conversations ✅ Smart matching systems and review/rating features

Hi, Clients! I help founders, agencies, and product teams transform requirements into clear scope, actionable documentation, and efficient process workflows. I’m a Technical Business Analyst with 5+ years as a Java Backend Engineer and 2+ years specializing in scoping, technical documentation, and process analysis for web, mobile, and AI SaaS projects. I ensure your projects are well-documented, feasible, and ready for development. I use tools like Mermaid, Lucidchart, Draw.io, PlantUML, JIRA, Notion, Xmind, Screen Studio, and AI (and my own brain, of course!) to support this work. Here’s how I can support your project: ✅ Scoping & Requirements Analysis – Define detailed scope, clarify features, and align expectations. ✅ Process Analysis (As-Is & To-Be) – Map current workflows and design optimized future-state processes. ✅ Technical Documentation – Deliver precise, developer-ready docs that keep teams aligned. 📄 Typical Deliverables: - Business Requirements Document (BRD) - Functional Requirements Document (FRD) - Functional Specification Document (FSD) - Technical Specification Document (TSD) - Statement of Work (SoW) - Test Case Scenarios - Agile User Stories - API Documentation - SaaS Product Documentation (User Guide, Knowledge Base, and Feature Docs) 📊 UML & Diagram Design: - Process Flow Diagram - Use Case Diagram - Swimlane Diagram - Architecture Diagram - Class Diagram - Entity-Relationship Diagram - Sequence Diagram I care deeply about clarity, precision, and delivering documentation that development teams can rely on from day one. Whether you’re launching a new product or improving an existing one, I can help you turn ideas into complete, actionable documents that move your project forward. So… what’s the biggest challenge you’re facing right now? Let’s talk and find the best solution together! Cheers, Nau 🤍

Full-Stack Developer shipping production web apps end-to-end from database schema and API design to polished React/Next.js interfaces. I own features across the whole stack, not just the UI layer, and I use an AI code assistant (Claude Code) to move faster without cutting corners. My stack: Frontend: React, Next.js, TypeScript, Tailwind CSS, TanStack Query Backend: Node.js, Express, NestJS, Supabase, PostgreSQL AI: Claude, OpenAI, DeepSeek What I build: - Full-stack web apps and SaaS products, from schema to final interface - Auth & integration systems SSO, KYC/EKYC flows, third-party API integrations - AI-integrated products, end to end - Clean REST APIs and bug fixes that reduce team downtime - Pixel-perfect, responsive UI when frontend polish is the priority AI features I build: - LLM integrations (Claude, OpenAI, DeepSeek) — chatbots, assistants, content generators - AI-powered SaaS built from scratch, including schema design and multi-tenant architecture Real-world proof: - Built an SSO + dashboard system (Betapass) integrated across frontend and backend for a Web3 ecosystem - Implemented EKYC and background-check API integrations for a fintech lending platform - 7+ years across fintech, blockchain/Web3, and enterprise environments