Java Developers para contratação em Ukraine
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Mostrando 41 resultados
Freelancers Patrocinados
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High Speed, User-Friendly, 100% Complete Solutions! Customer satisfaction is my ultimate goal! With a solid background as a Web Developer and a degree in Computer Science, I’ve developed a strong technical foundation that allows me to deliver top-quality results. As a Full Stack Java Developer and Cross-Platform...High Speed, User-Friendly, 100% Complete Solutions! Customer satisfaction is my ultimate goal! With a solid background as a Web Developer and a degree in Computer Science, I’ve developed a strong technical foundation that allows me to deliver top-quality results. As a Full Stack Java Developer and Cross-Platform Developer, I specialize in building scalable, high-performance applications for both web and mobile platforms. My expertise includes a broad range of technologies and frameworks, with a focus on Java development. Front-end Development: - Core Web Technologies: HTML5, CSS3, JavaScript, JSON/XML - JavaScript Frameworks: React.js/Redux, Vue.js/Vuex, Angular, TypeScript, Next.js, Nuxt.js, Styled Components - JavaScript Libraries: jQuery, DOJO toolkit, D3.js, Pixi.js, Three.js, Socket.IO, AOS, Chart.js, Popper.js, etc. - UI Frameworks: Bootstrap, Material UI, Ant Design, Semantic UI, Vuetify, Element Back-end Development (Java): - Java Technologies: Java SE, Java EE (Jakarta EE), Spring (Spring MVC, Spring Boot, Spring Security), Hibernate - Web Frameworks: JavaServer Faces (JSF), Vaadin, JavaFX, JSP, Servlets, and RESTful APIs - Database: MySQL, PostgreSQL, Oracle DB, MongoDB, SQLite - Java ORM: Hibernate, JPA - Web Servers: Apache Tomcat, Jetty, JBoss Back-end Development (Non-Java): - JavaScript: Node.js/Express.js, Sails.js, Koa.js - Python: Flask, Django - PHP: Custom PHP, Laravel, CodeIgniter, Symfony, CakePHP - Databases: MongoDB, MySQL, PostgreSQL, SQLite3 Cross-Platform Mobile Development: - React Native (JavaScript/TypeScript) - Flutter (Dart) Additional Expertise: - Proficient in DOM manipulation and JavaScript object model - Extensive experience with React.js, Vue.js, and their core principles (e.g., Flux, Redux, Vuex) - Java-based back-end development with Spring and Java EE frameworks - Expertise in database programming and management (e.g., MongoDB, MySQL, PostgreSQL) - Familiarity with RESTful APIs and JSON Web Token for modern authentication - EcmaScript and modern JavaScript standards, including ES6+ - Familiarity with front-end build pipelines and tools like Babel, Webpack, NPM - Experience with version control tools (Git, SVN, Mercurial) - Strong ability to translate business requirements into technical solutions - Performance benchmarking, optimization, and scalability solutions - Knowledge of multi-threading and enterprise-level Java applications With a comprehensive skill set in Java development and cross-platform technologies, I am well-equipped to create high-performance solutions for both web and mobile platforms, ensuring seamless functionality and exceptional user experiences. menos
Contratar topcreator100
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I specialize in projects related with sports betting and casino solution. If you have any idea for taking money with betting system, don't hesitate to contact me plz. I have worked with automated applications of online sports betting sites such as bet365, bwin, betano, stoiximan and etc for 15 years. And I can provide...I specialize in projects related with sports betting and casino solution. If you have any idea for taking money with betting system, don't hesitate to contact me plz. I have worked with automated applications of online sports betting sites such as bet365, bwin, betano, stoiximan and etc for 15 years. And I can provide with casino system including evolution baccarat, blackjack, roulette and slot games. My expert skills: - Developing Valuebet & Copybet bots for betting sites. - Web development using Laravel, AngularJS, ExpressJS, WordPress, MVC5, . Net Core - Window application development and Reversing - Mobile application development for both iPhone and Android platforms menos
Contratar Nazarij5
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Hi, everyone! My name is Alina. I am a Russian, Ukrainian, and Bulgarian native speaker. I am a certified translator (ENG/GER/SPA/POL/RUS/UKR/BLG) with a diploma in Linguistics. I have more than 15 years of translation experience. In addition, I have my own large and strong multilingual team, which can translate...Hi, everyone! My name is Alina. I am a Russian, Ukrainian, and Bulgarian native speaker. I am a certified translator (ENG/GER/SPA/POL/RUS/UKR/BLG) with a diploma in Linguistics. I have more than 15 years of translation experience. In addition, I have my own large and strong multilingual team, which can translate your text from/into all major languages. And what is more, with the aid of wide network of my native partners, all our translations are additionally proofread by a native professional, regardless of target language, so I can guarantee you native-level translation at the last. I like my job because it gives me the opportunity to learn something new every day. And I'll be happy to cooperate with you and provide professional, high quality services, with a reasonable timeline and fair price. Good luck! menos
Contratar dianita24
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✔️ Senior software solution ✔️ Immediate Start ✔️ high quality Guaranty ✔️ on time ! -- I have more than 10+ years of professional experience in Software Development, Backend Development, Frontend Design and Web/Mobile App Development. My skills: 1. Mobile App Development - iOS: swift(UI Kit, Swift UI),...✔️ Senior software solution ✔️ Immediate Start ✔️ high quality Guaranty ✔️ on time ! -- I have more than 10+ years of professional experience in Software Development, Backend Development, Frontend Design and Web/Mobile App Development. My skills: 1. Mobile App Development - iOS: swift(UI Kit, Swift UI), objective-c - Android: Java, Kotlin - React Native - Flutter 2. Web Development - JavaScript, PHP, HTML, CSS - React - Python-Django 3. Backend Development - Python - Express - PHP 4. Database Management - MongoDB - MySQL - Postgre - Firebase 5. Programming Lnaguages - Python, Swift, Java, Kotlin, Objective-C, JavaScript, Java, menos
Contratar nikitohkaDesign
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oleksandrbosyi oleksandrbosyi
$30 Dólares / hora
✅ Top 1% | ⚡ Full Stack | ❤️ Software EngineerUkraineI have a lot of experience of Web and Mobile App development by using PHP, Wordpress, Javascript, Python, unity3d,ionic framework,hybrid and swift.My top skill for mobile app is to make Game App with modern technology, Agumented Reality,OpenCV,etc.I`ve made a lot of game apps such as strategy, standalone and...I have a lot of experience of Web and Mobile App development by using PHP, Wordpress, Javascript, Python, unity3d,ionic framework,hybrid and swift.My top skill for mobile app is to make Game App with modern technology, Agumented Reality,OpenCV,etc.I`ve made a lot of game apps such as strategy, standalone and multiplyer online game and published them to google and app play store. In addition to mobile app development, I have Extensive experience in ERP/CRM systems running on packaged and cloud based systems (Netsuite, Salesforce.com). Strong experience in software development, project management, business modeling, creating operational guidelines, database administration, and business process reengineering. Extensive experience in applications and systems analysis, design, and development using structured, object-oriented, and aspect-oriented methodologies. Adept in software development using Windows and/or Linux/Unix platform. Highly skilled in Web development and design and the use of web based technologies as a means of making branches online. Highly knowledgeable in setting up LAN and WAN, including technical design of network for an enterprise wide application system. Possess years of experience in teaching technical courses. menos
Contratar oleksandrbosyi
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I am a versatile senior developer with 5 years of solid experience. I specialize in creating intelligent solutions that enhance communication, streamline processes, and automate workflows. My expertise spans across Agent Development, Content Generation, CRM Management, and Automation, as well as Web Platform...I am a versatile senior developer with 5 years of solid experience. I specialize in creating intelligent solutions that enhance communication, streamline processes, and automate workflows. My expertise spans across Agent Development, Content Generation, CRM Management, and Automation, as well as Web Platform Development. With a strong technical foundation, I help businesses harness the power of AI and modern technology to achieve their objectives. ? My Key Areas of Expertise ✅ AI Agent Development - Prompt Engineering: Crafting precise and effective prompts for LLMs like OpenAI, Gemini, and Llama - Retrieval-Augmented Generation (RAG): Building intelligent systems with real-time knowledge integration - Vector Databases (Pinecone): Implementing advanced memory and retrieval systems for agents - VoIP Integration (FreeSWITCH, Twilio): Designing AI-powered communication tools for seamless customer interactions ✅ AI Content Generation - Text Generation: Leveraging LLMs for chatbots, marketing content, and creative writing - Image and Video Generation: Advanced tools like Stable Diffusion, DALL-E, YOLO, and OpenCV for visual content creation - AI Models: Developing custom AI models for automated content creation tailored to business needs ✅ CRM Expert - Lead Management and Generation: Automating lead tracking, nurturing, and scoring to optimize sales - Cold Calling and Email Marketing: Implementing AI-driven tools for personalized outreach solutions - CRM Automation: Expertise in Make.com, Zapier, WhatsApp, and Twilio for seamless workflow integration - Custom Solutions: Enhancing CRM efficiency with intelligent automations and tailored tools ✅ Automation Expertise - Workflow Automation: Using platforms like Make.com and Zapier to integrate tools and systems - Web Scraping: Extracting valuable data for lead generation, competitor analysis, and market research - End-to-End Process Automation: Streamlining operations for improved efficiency and reduced costs ✅ Web Platform Development - Frontend Development: Proficiency in React, Next.js, Remix, Solid, Astro, React Native, and Tailwind for dynamic interfaces - Backend Development: Expertise in Django, FastAPI, and Node.js for secure and scalable applications - Database and Deployment: Skilled in databases (SQL, NoSQL) and cloud platforms like AWS, Azure, and Docker ✅ Technical Skills - Programming Languages: Python, JavaScript, TypeScript, C# - VoIP Systems: FreeSWITCH, Twilio, Asterisk, PBX, 3CX - AI and LLMs: OpenAI, Gemini, Llama, LangChain, Pinecone - STT/TTS: ElevenLabs, Deepgram, OpenAI STT/TTS, Gemini STT/TTS - AI Image/Video: Stable Diffusion, DALL-E, Hugging Face, OpenCV, YOLO - Frontend Frameworks: React, Next.js, Remix, Solid, Astro, React Native, Tailwind CSS - Backend Frameworks menos
Contratar maksymhuk5
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winindicator07 winindicator07
$30 Dólares / hora
Next & .NET, C++, Bot & Blockchain & TradingUkraineHi, I am a software developer with 6+ years of experience crafting robust and scalable web applications. I am passionate about turning ideas into reality, I specialize in building efficient and reliable backend systems using Django, Flask, and FastAPI. ✅ Why I am Unique? Service Before Money Full-Stack...Hi, I am a software developer with 6+ years of experience crafting robust and scalable web applications. I am passionate about turning ideas into reality, I specialize in building efficient and reliable backend systems using Django, Flask, and FastAPI. ✅ Why I am Unique? Service Before Money Full-Stack Proficiency Uncompromising Communication Weekend Support Dedicated Freelancer Attention to Detail Problem Solver Client-Centric Approach ✅ My Working Strategies I follow Agile methodologies and Waterfall models to ensure efficient project management and deliver high-quality results. I prioritize clear communication, code quality, and maintainability. My focus is on building scalable, secure, and well-documented applications. ✅ Technical Expertise Python: Core programming language for backend development Django, Flask, FastAPI: Python web frameworks for building robust applications Databases: PostgreSQL, MySQL, SQLite Cloud Platforms: AWS (EC2, S3, Lambda, RDS) API Development: RESTful and GraphQL APIs using Open API specifications Version Control: Git Testing: Unit, integration, and API testing Ready to bring your project to life? Let's connect! Feel free to send me a message or check out my portfolio for more details. I am eager to discuss your project requirements and explore how I can help you achieve your goals. Thanks & Regards menos
Contratar winindicator07
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I’m a developer experienced in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows HTML and CSS3, PHP, jQuery, Wordpress, and SEO Full project management from start to finish Regular communication is important...I’m a developer experienced in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows HTML and CSS3, PHP, jQuery, Wordpress, and SEO Full project management from start to finish Regular communication is important to me, so let’s keep in touch. menos
Contratar serhii41
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⭐ Hello! I'm a dynamic Full-Stack Developer & AI Specialist, passionate about pushing the boundaries in ChatGPT, Langchain, and web technologies. ⭐ ⭐ What I Bring to the Table: - AI & Machine Learning Expertise: • Mastery in ChatGPT & Langchain. • Proficient in OpenAI Embeddings & Generative AI. • Building complex...⭐ Hello! I'm a dynamic Full-Stack Developer & AI Specialist, passionate about pushing the boundaries in ChatGPT, Langchain, and web technologies. ⭐ ⭐ What I Bring to the Table: - AI & Machine Learning Expertise: • Mastery in ChatGPT & Langchain. • Proficient in OpenAI Embeddings & Generative AI. • Building complex Large Language Models. - Full-Stack Development Skills: • Frontend: React, Angular, Vue. • Backend: PHP, Python, NodeJS. • Databases: MongoDB, and more. - Additional Tech Prowess: • Mobile Development with React-Native. • Crafting innovative Google Chrome Extensions. ⭐ My Approach: • Problem-solver and innovation enthusiast. • Committed to quality and efficiency. • Collaboration-friendly with Docker, GIT, GitHub, GitLab. ⭐ Ready to Elevate Your Project: Whether it's an AI-driven solution or a state-of-the-art web application, I'm here to turn your vision into reality. Let's connect and make something amazing! ⭐ Invite me to your project - I'm excited to contribute and collaborate! menos
Contratar serhiiv5
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kovalenkovlad kovalenkovlad
$30 Dólares / hora
✅Full-Stack Developer | Scalable Web & Mobile✅UkraineI am a dedicated and skilled full-stack developer with 8 years of experience and with a passion for creating innovative solutions that align with client goals. My expertise spans frontend frameworks such as React, Angular, and Vue.js, combined with backend technologies like Node.js, Django, Laravel and ASP.NET. This...I am a dedicated and skilled full-stack developer with 8 years of experience and with a passion for creating innovative solutions that align with client goals. My expertise spans frontend frameworks such as React, Angular, and Vue.js, combined with backend technologies like Node.js, Django, Laravel and ASP.NET. This combination enables me to build scalable, secure, and efficient applications tailored to unique requirements. I am also proficient in database management using SQL and NoSQL, cloud services like AWS and Firebase, and blockchain technologies such as Solidity and Ethereum APIs, ensuring I can tackle a wide range of technical challenges. Skilled in mobile app development (React Native, Flutter, Swift) and database management (SQL & NoSQL),I ensure seamless CI/CD workflows and scalable solutions. Beyond my technical skills, I bring a strong sense of responsibility, collaboration, and creativity to every project. I excel at understanding client needs and translating them into practical, user-friendly applications that not only meet expectations but often exceed them. My ability to balance attention to detail with a focus on the bigger picture allows me to deliver results that are both innovative and reliable. What sets me apart is my commitment to continuous learning and adaptability. I thrive on solving complex problems, exploring new technologies, and working in dynamic environments. Whether it’s building a seamless e-commerce platform, creating an intuitive web application, or developing a cutting-edge blockchain solution, I approach every task with enthusiasm, professionalism, and a deep respect for quality and client satisfaction. menos
Contratar kovalenkovlad
