Java Developers para contratação em Indonesia
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Mostrando 9 resultados
Freelancers Patrocinados
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larasatik4 larasatik4
$50 Dólares / hora
Preferred Verified Engineer | Web, Mobile, DesktopIndonesia🚀 I design and build production-grade software across web, mobile, desktop, and blockchain — with AI used where it genuinely improves speed, usability, and decision-making. I don’t just ship features. I build systems that survive real users, real data, and real business pressure. 🧠 My background spans full-stack web...🚀 I design and build production-grade software across web, mobile, desktop, and blockchain — with AI used where it genuinely improves speed, usability, and decision-making. I don’t just ship features. I build systems that survive real users, real data, and real business pressure. 🧠 My background spans full-stack web development, cross-platform mobile apps, desktop software, and practical blockchain integration. That means I can take a product from early concept through architecture, implementation, optimization, and deployment — without hand-offs or fragile glue code. 🌐 Web: High-performance apps with React, Next.js, and TypeScript, focused on scalability, clean state management, and well-designed APIs. 📱 Mobile: Maintainable Flutter or React Native apps with careful attention to performance, platform behavior, and long-term upgrades. 🖥️ Desktop: Fast, reliable software built with C++ and C#, including internal tools and system-level utilities where performance and OS integration matter. ⛓️ Blockchain: Smart contracts and Web3 backends built with security and real-world reliability in mind. I work with Rust and Solana development, and I build EVM smart contracts where correctness, testing, and audit-ready structure matter. I also handle the “boring but critical” parts: wallet flows, signing, backend integration, indexing, and monitoring — so blockchain features behave like real product features, not demos. ⚙️ Behind the UI, I design robust backend systems using Node.js, Python, or PHP/Laravel, backed by PostgreSQL or MySQL, and Supabase or Firebase when appropriate. I care deeply about data modeling, authentication flows, background jobs, and CI/CD — the unglamorous parts that decide whether a product scales or breaks later. 🤖 AI is something I integrate practically, not as a buzzword. I’ve built AI chat systems, content generation tools, workflow automation, and data-driven features that reduce manual work and unlock real product value. The focus is always reliability, predictability, and measurable impact. 🛠️ Clients work with me when they want a developer who thinks like an engineer, not just a coder. I help clarify requirements, spot architectural risks early, debug complex issues, and improve existing systems without breaking what already works. 🔧 Tech stack: React, Next.js, TypeScript, Node.js, Python, PHP, Laravel, Flutter, React Native, C++ / C#, PostgreSQL, MySQL, Supabase, Firebase, Solana (Rust), Smart Contracts (EVM), AI model integration, automation, GitHub Actions, CI/CD. ✅ What you get: Clear communication, honest timelines, clean code, and software built to last — with AI and blockchain used where they truly add product value. 🎯 If you want one developer who can own web, mobile, desktop, blockchain, and AI end-to-end, you’re in the right place. menos
Contratar larasatik4
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FreelancerTechX FreelancerTechX
$14 Dólares / hora
Web Scraping Expert | 100% Success ScoreIndonesiaCaptura de dados na web, Arquitetura de software, Excel, Processamento de Dados, Processamento de dadosWe are a small company specializing in low cost web scraping projects. We are a team of 5 professionals.We are a small company specializing in low cost web scraping projects. We are a team of 5 professionals. menos
Contratar FreelancerTechX
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cindyviorinar cindyviorinar
$20 Dólares / hora
Verified Web | Mobile | Desktop App | Chatbot DevIndonesiaI’m a Full-Stack Developer who builds web, mobile, and desktop applications end-to-end — from UI to backend, database, and deployment. I focus on clean, maintainable code, stable releases, and clear communication. What I can help you build • Web apps & dashboards: Next.js/React, responsive UI, admin panels,...I’m a Full-Stack Developer who builds web, mobile, and desktop applications end-to-end — from UI to backend, database, and deployment. I focus on clean, maintainable code, stable releases, and clear communication. What I can help you build • Web apps & dashboards: Next.js/React, responsive UI, admin panels, multi-role systems • Backend & APIs: PHP (Laravel), Python (FastAPI/Django), .NET (C#), REST/GraphQL, webhooks • Mobile apps: Flutter / React Native (or mobile-ready web/PWA when needed) • Desktop apps: Windows desktop tools with .NET (C#), internal utilities, offline workflows • Databases & performance: PostgreSQL/MySQL, migrations, caching, query optimization • Integrations: payments, email/SMS, third-party APIs, authentication, file uploads, reporting/export (CSV/PDF) How I work • Clarify requirements → create a simple plan and milestones • Frequent updates and clean documentation/README • Strong attention to security basics, error handling, and testing where it matters Whether you need an MVP, bug fixes, feature upgrades, or a complete rebuild, I can jump in and deliver a reliable result. menos
Contratar cindyviorinar
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Experienced in fullstack web development using PHP (Laravel), Java (Spring Boot), JavaScript/TypeScript with React and Angular. Built and maintained SaaS platforms, e-commerce sites, and Django-based projects. Skilled in creating RESTful APIs, integrating frontend-backend systems, and delivering responsive, secure,...Experienced in fullstack web development using PHP (Laravel), Java (Spring Boot), JavaScript/TypeScript with React and Angular. Built and maintained SaaS platforms, e-commerce sites, and Django-based projects. Skilled in creating RESTful APIs, integrating frontend-backend systems, and delivering responsive, secure, and scalable web applications. menos
Contratar rifau3
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JavaScript, OCR, IA (Inteligência Artificial) HW/SW, Desenvolvimento de Chatbot com IA, Desenvolvimento de IAI am an AI engineer specializing in Computer Vision, Large Language Models (LLMs), and Voice AI. With expertise in object detection, segmentation, and video processing, I have hands-on experience using META AI's Segment Anything Model (SAM) to enhance moving object detection. In NLP & LLMs, I work with models like...I am an AI engineer specializing in Computer Vision, Large Language Models (LLMs), and Voice AI. With expertise in object detection, segmentation, and video processing, I have hands-on experience using META AI's Segment Anything Model (SAM) to enhance moving object detection. In NLP & LLMs, I work with models like GPT-4o, Mistral, Llama, Claude, and Gemini, integrating RAG, LangChain, LlamaIndex, and vector databases (Pinecone, Weaviate, Qdrant, OpenSearch) for advanced AI applications. I also deploy solutions on AWS, Azure, and GCP. In Voice AI, I have developed: Real-time voice cloning & voice changer (RVC + React Native + FastAPI) Medical interview analysis AI (Whisper + Claude 2) Voice authentication & speaker recognition API (SpeechBrain + FastAPI) AI voice agent for customer support (Deepgram STT + GPT-3.5 + ElevenLabs TTS + Twilio) Research on speaker diarization improvements (Pyannote) Skilled in Python, Java, and C, I thrive in solving complex problems, optimizing AI workflows, and building real-world applications that push technological boundaries. menos
Contratar rakam26
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1. Front-end Development - React.js, HTML/CSS/JavaScript/Vue.js 2. Back-end Development - Node.js/Express.js (MERN) - Django/Flask (Python) - PHP/Laravel, Wordpress 3. Database Management - MongoDB, SQL (PostgreSQL/MySQL) 4. API Development - RESTful and GraphQL APIs 5. Full-stack Application...1. Front-end Development - React.js, HTML/CSS/JavaScript/Vue.js 2. Back-end Development - Node.js/Express.js (MERN) - Django/Flask (Python) - PHP/Laravel, Wordpress 3. Database Management - MongoDB, SQL (PostgreSQL/MySQL) 4. API Development - RESTful and GraphQL APIs 5. Full-stack Application Development - SPAs, PWAs, and third-party integrations 6. Deployment and Hosting - Cloud services (AWS, Heroku, Azure) - CI/CD and Docker 7. Maintenance and Support - Performance, security, and scalability updates 8. Mobile App Development - React Native, Flutter - Android, iOS menos
Contratar moha262
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elishadiah326 elishadiah326
$30 Dólares / hora
✧ ᵛᵉʳᶦᶠᶦᵉᵈ JS || Vue.js || React || LaravelIndonesiaHello, everybody. This is Diah Elisha from Indonesia, a high-skilled Fullstack developer with skills including ReactJS, VueJS, Angular, Noe.js, Laravel, PHP, Python, Blockchain, JavaScript and so on. I consider myself the right choice for you because I have the right skills and potential to match your needs as a...Hello, everybody. This is Diah Elisha from Indonesia, a high-skilled Fullstack developer with skills including ReactJS, VueJS, Angular, Noe.js, Laravel, PHP, Python, Blockchain, JavaScript and so on. I consider myself the right choice for you because I have the right skills and potential to match your needs as a senior developer who has full experience in building pixel-perfect & responsive UI with ReactJS and Vue.js. As a senior Web developer who has 6 + years of experience in web development, I've built a lot of projects for Dapp, PWA, Admin panels and Web content using ReactJS, Vue.js, Tailwind CSS, etc. My working area includes implementing pixel-perfect UI with a good sense of design and a keen eye for details of the project, implementing API integration, making functionalities, fixing bugs, TDD, SEO and etc. I have the skill to execute all visual designs from concept to finalized engineering in a reasonable amount of time. My well-known skills: - React/Next/Vue/Nuxt/Gatsby - React Native / Android Studio / iOS - HTML5, CSS/CSS3, Bootstrap, TailwindCSS, MUI. -Wordpress, Shopify - JavaScript( ES6, 7, ...), Typescript, Ajax, jQuery, OAuth - PHP, Laravel, Ruby on Rails, Blockchain - Node.js, Python, Django, Express, RUST - MySQL, Oracle, PostgreSQL, SQLite, MongoDB. - Github, GitLab, Bitbucket, Trello, Jira, - AWS, DigitalOcean, Cloudways, Vercel, Netlify I can start your working immediately and dedicate full time. Please feel free to contact me if you want a great deal for your business and beautiful life. Thank you. Diah Elisha. menos
Contratar elishadiah326
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Professional Embedded System Engineer with 10 years of experience on hardware and embedded software development. PCB Tools : - Altium - KiCAD - Eagle - EasyEDA Microcontroller : - AVR - STM32 - ESP8266 / ESP32 - NXP - Texas Instrument - Arduino - Raspberry / Banana / Orange Pi SBC Wireless Communication - NFC...Professional Embedded System Engineer with 10 years of experience on hardware and embedded software development. PCB Tools : - Altium - KiCAD - Eagle - EasyEDA Microcontroller : - AVR - STM32 - ESP8266 / ESP32 - NXP - Texas Instrument - Arduino - Raspberry / Banana / Orange Pi SBC Wireless Communication - NFC (MF classic, desfire, ultralight, NTAG424, NTAG213, NTAG21x, ICODE) implemented on payment, membership, access control with various NFC reader on desktop such as ACR122U, ACR120U, castle tech QP8000 to android custom reader - RFID short / long range - WiFi, Bluetooth, LoRa Wired Communication - UART, SPI, I2C, CAN, LIN, RS232, RS485 Protocol Data - MODBUS RTU / ASCII - HTTP, MQTT, TCP, UDP menos
Contratar edi45
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I am a Full-Stack Developer and AI/OpenAI Specialist with more than 6 years of proven experience designing and delivering scalable, secure, and user-friendly digital products. I have collaborated with both software companies and international clients, successfully completing projects that range from responsive...I am a Full-Stack Developer and AI/OpenAI Specialist with more than 6 years of proven experience designing and delivering scalable, secure, and user-friendly digital products. I have collaborated with both software companies and international clients, successfully completing projects that range from responsive websites to sophisticated AI-powered platforms. My mission is simple: transform complex ideas into elegant, functional solutions that generate measurable business value. 💻 Full-Stack Web Development - Frontend: React.js, Next.js, TailwindCSS - Backend: Node.js, Python (Django/Flask) - Databases: MySQL, PostgreSQL, MongoDB - APIs: REST & GraphQL, authentication, third-party integrations - Focus: Clean, maintainable, and scalable code 🤖 AI & OpenAI Solutions - GPT/LLM Integration: Chatbots, knowledge assistants, content generation - Machine Learning: TensorFlow, PyTorch, Scikit-learn for predictive analytics & NLP - Computer Vision: Image recognition, OCR, real-time analysis 🔑 Why Clients Work With Me ✔️ End-to-end delivery - from concept to production-ready solution ✔️ Balanced expertise - bridging AI research with practical product development ✔️ Future-ready systems - scalable, maintainable, and secure architecture ✔️ Transparent communication - regular updates, clear milestones, and fast responses ✔️ Proven results - helped startups, enterprises, and entrepreneurs launch apps and AI solutions that save time, cut costs, and open new opportunities 🚀 Let’s Build Together Whether you need a custom AI assistant, predictive model, high-performing web application, or mobile app with intelligent features, I can help bring your vision to life with precision, creativity, and technical excellence. menos
Contratar ihsan191
