Hire the best Java Developers in Sumy, UA

Check out Java Developers in Sumy, UA with the skills you need for your next job.
Clients rate Java developers
Rating is 4.8 out of 5.
4.8/5
based on 1,667 client reviews
  • $30 hourly
    Hello, my name is Roman,. I'm a Python 🐍 developer with 6+ years of experience in web scraping and automation of different boring stuff. also have 10+ years of experience in JAVA back-end development ⭐ I am looking for a part-time project that could be converted into long-term relationships :) 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 𝑾𝒆𝒃 𝒔𝒄𝒓𝒂𝒑𝒊𝒏𝒈 𝒂𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏: ☑ web scraping, data mining, data extraction, data transformation, ☑ multiple browser automation (for example with multilogin or similar tools) ☑ mobile app data scraping, and automation (uiautomator2) ☑ scraping info from websites into SQL-like DB (SQLite, MySQL, Postgres), NoSQL, or any other format (txt, CSV, EXCEL, JSON, etc). 𝑹𝒐𝒖𝒕𝒊𝒏𝒆 𝒂𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏: ☑ automation of routine stuff, copy-past, folder creation, etc. ☑ writing scripts and utilities, ☑ image/file downloading. ☑ file transformation. 🕷️𝐖𝐞𝐛 𝐬𝐜𝐫𝐚𝐩𝐢𝐧𝐠 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐬: ☑ Selenium Webdriver - create autotest, scraping information from different websites, creating a script for automation login process (amazon/google, other websites) ☑ Scrapy - a gathering of information from a variety of websites like Amazon, airbnb, etc (python) ☑ Xpath - analysis and using XPath to navigate in an XML document/DOM ☑ beautiful soup + requests - collecting information from the given websites. 𝗦𝗸𝗶𝗹𝗹𝘀𝗲𝘁: ☑ Java – advances (new tools implementation, web applications creation, bug fixing, code review) ☑ JavaScript – basic (new script creation, support existing solution). ☑ Groovy – basic (creation of simple CRUD web application using Grails Framework). ☑ Python (knowledge: PyGame, Django, scrapy, beautiful soup) ☑ Spring (Core, MVC, Security, JPA) – new application creation, support existing web applications. ☑ Oracle SQL – creating new scripts, supporting and tuning existing scripts. ☑ HTML + CSS – simple page creation/support existing Keywords: autotest development, web scraping, data mining, python, java, spring-boot, spring-wvc, beautiful soup, scrapy, XPath, regexp, selenium, csv, Google Sheet, Airbnb, bs4, SQLite, bitbucket, scrapinghub/zyte, boto3, s3, dynamoDB, ETL, MySQL, Amazon review, Amazon inventory scraping, scrapyd, CSS selector, XPATH selector, olx, api, json, shopify scraping, missive, google API, woocommerce-rest-api, spread, scripting. PostgreSQL, isort, black, oracle DB, bid-scraping, multilogin, gologin
    vsuc_fltilesrefresh_TrophyIcon Java
    Selenium
    Lead Generation
    Automation
    Web Crawling
    Data Extraction
    Web Scraping
    Spring Framework
    Spring Boot
    Data Mining
    Scrapy
    Data Scraping
    Data Entry
    Python
  • $50 hourly
    🚀 Transform Your Vision into Exceptional Web & Mobile Experiences with Expert MERN Stack and React Native Development 🚀 I’m an experienced full-stack developer, specializing in both web and mobile application development. With React, Next.js, Node.js, and MongoDB, I build scalable and high-performing websites, while leveraging React Native to craft top-tier mobile apps for iOS and Android. With over 4 years in React, 2.5 years in React Native, and 1 year in Next.js, I bring a well-rounded skill set that delivers cross-platform solutions to meet any business need. 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: 🌐 MERN Stack Website Development: Specializing in React for dynamic, responsive user interfaces, Next.js for server-side rendering and improved SEO, and Node.js for creating scalable back-end services. I build custom websites with a focus on speed, security, and user experience. 📱 React Native Mobile App Development: Expert in creating high-performance, cross-platform mobile apps that work seamlessly on both iOS and Android. Whether it’s an e-commerce app, a social platform, or a business tool, I ensure smooth user experiences with native-like performance. 🚀 𝗞𝗲𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: Custom Web Solutions: From responsive websites to complex SaaS platforms, I develop solutions tailored to your specific business needs using the MERN stack. Mobile App Development: Using React Native, I build robust mobile applications that work flawlessly across different devices, providing native-like performance and smooth animations. Server-Side Rendering with Next.js: Boost your website’s SEO and load speeds with Next.js, ensuring optimal user experience and higher search engine rankings. Performance Optimization: I specialize in optimizing both web and mobile apps, delivering smooth 60fps experiences that feel natural and fast. Ongoing Support & Maintenance: My commitment doesn’t end with project delivery. I offer long-term support and updates to ensure your site or app stays secure and current. 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲❓ 🌐 MERN Stack Expertise: Custom website development using React, Next.js, Node.js, and MongoDB. ⚛️ React Native Mastery: High-quality mobile apps with native-like experiences on both platforms. 🤝 Client-Centric Approach: I’m dedicated to meeting your project needs, providing high-quality work on time. Let’s build something great together! Ready to bring your web or mobile project to life? 𝙂𝙚𝙩 𝙞𝙣 𝙩𝙤𝙪𝙘𝙝, 𝙖𝙣𝙙 𝙡𝙚𝙩'𝙨 𝙙𝙞𝙨𝙘𝙪𝙨𝙨 𝙝𝙤𝙬 𝙬𝙚 𝙘𝙖𝙣 𝙘𝙧𝙚𝙖𝙩𝙚 𝙖𝙣 𝙤𝙪𝙩𝙨𝙩𝙖𝙣𝙙𝙞𝙣𝙜 𝙥𝙧𝙤𝙙𝙪𝙘𝙩 𝙛𝙤𝙧 𝙮𝙤𝙪𝙧 𝙪𝙨𝙚𝙧𝙨! ⚡
    vsuc_fltilesrefresh_TrophyIcon Java
    AI Mobile App Development
    Expo.io
    API Integration
    Tablet
    User Authentication
    Firebase
    iOS Development
    Android App Development
    JavaScript
    Smartphone
    Mobile App Development
    React Native
    Android
    iOS
  • $40 hourly
    I am a talented full stack web developer with a passion for creating innovative and dynamic web applications. My expertise spans the entire web development stack, from front-end design to back-end arcitecture and everything in between. With a strong focus on clear communication and efficient project management, I deliver high-quality results that exceed client expectations. My main stack & skills: ✔ Front-End -HTML 5, CSS 3, Bootstrap, Jquery, JavaScript -React, NextJS, TypeScript, Redux, Redux Thunk, Redux Saga, Redux Hooks, React Rouer -VueJS, Angular -Material-UI, Tailwind CSS -Figma, Adobe XD ✔ Back-ENd -PHP, Laravel, CI -NodeJS, Express JS -Flask, Django -Websocket -Promise, middleware, JWT, routing ✔ Database -MySQL, PostgreSQL, GraphQL -MongoDB -AWS Lambda, DynamoDB ✔ other(CMS) -WordPress, Shopify, Squarespace -Webflow, Learnworlds So if you are looking for a skilled, reliable full stack web developer to take your project to the next level, look no further than me.
    vsuc_fltilesrefresh_TrophyIcon Java
    Shopify
    Webflow
    Vue.js
    API Integration
    CSS 3
    HTML5
    Angular
    Laravel
    WordPress
    Python
    React
    Node.js
    JavaScript
    PHP
  • $40 hourly
    Hello!🙋‍♂‍ I am a senior full stack & blockchain developer with 8+ years of experience supporting High Quality work and the fastest support. Specialize in creating websites and minting NFTs, which are customized and fully enriched for ultimate digital experience. I create highly user-friendly static and dynamic types of websites and products without compromising the overall look and feel of the website. Why choose me? ★ 8+ Years of experience ★ 100% satisfaction assured ★ Technological Excellence across platforms ★ Thoughtful and futuristic software and web development ★ 100% trusted team ★ Long term relationships!! ★ Enough work experience in working with Price Comparison website , Buy & Sell currency Exchange website, Doctor / Service Provider Website, E-Book Website, Property Website, Hotel, Restaurant Booking and Shopping website ... Professional Skills: ✔️Fullstack ✓ frontend: HTML, CSS, Javascript, Bootstrap, Sass, React/Redux, Typescript, Vue, Angular ✓ backend: Nodejs, PHP, Python, C# ✓ Database: MongoDB, MySQL, PostgreSQL ✓ framework: WordPress/WooCommerce, Laravel, MERN, MEAN, Django ✓ Design: Logo, Web Responsive , Mockup, Brochure ✓ Github, Heroku ✓ Software Analysis, UI/UX Design, Graphic Design ✓ AWS, Google cloud ✔️Blockchain: ✓ Smart contract, Ethereum, Solana, Cryptocurrency, Secure wallet ✓ ERC-721, ERC-20, BEP-721, BEP-20 ✓ Tokenomics management, ICO, IDO ✓ DeFi (Pancakeswap, Uniswap, Staking, Liuiqidy Pools) ✓ NFT marketplace (Opensea integration, Auction, Lottery, Lazy Mint) I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work. Best Regards!
    vsuc_fltilesrefresh_TrophyIcon Java
    Smart Contract
    Ecommerce
    Search Engine Optimization
    RESTful API
    Elasticsearch
    Python
    C#
    Ruby
    PHP
    Laravel
    React
    Node.js
    Angular
    Vue.js
  • $35 hourly
    I will support high quality, very honest and fast delivery for working. - Flutter / Dart : Mobile app development for 4 years. - Java, Kotlin / Android Studio: Mobile app development for 7 years. - Swift, Obj-C / Xcode : Mobile app development for 7 years. - Express, React: Web app and backend development for 3 years. Thanks.
    vsuc_fltilesrefresh_TrophyIcon Java
    ExpressJS
    Mobile App Development
    Flutter
    Android
    Kotlin
    React
    Swift
  • $15 hourly
    My skills: - JavaScript (2+ years) - TypeScript (1+ year) - HTML, CSS (2+ years) - Svelte, SvelteKit (1+ year) - Writing clean, maintainable code My notable projects: - Co-Founder and lead developer of a startup that became Product Hunt's #1 Web3 product of the week / #2 Web3 product of the month. - Trade finance document management system with automation (Quorum Blockchain, ERC721) - Blockchain-based corporate messenger MVP (Kaleido App2App)
    vsuc_fltilesrefresh_TrophyIcon Java
    Solidity
    Blockchain Architecture
    Blockchain
    API
    Business
    Object-Relational Mapping
    Svelte
    API Development
    RESTful API
    RESTful Architecture
    Spring Boot
    JavaScript
    Vue.js
    Node.js
  • $35 hourly
    Hi i am professional full stack developer and mobile application developer having experience of 12+ years in Web/Mobile/Linux/Reverse engineering/Speed optimization/QA & testing/Logic building/Automation/Internet marketing/SEO. I am man who prides his work as professional software engineer and developer. I am the long term solutions of your IT problems. i have built many web & mobile applications ranging from simple to complex (B2B & B2C),CRM apps, ERP, Web automation, E commerce, Web bots, Cron jobs, Live chat systems & chat bots, CMS, Custom web solutions, Management systems, Social Engine Development, Web engines, Social media development,Scrapping Bots building using Selenium & node, Rest web services, native mobile apps. Web Development : HTML,CSS, Java script, JQuery , React.js,Next.js, Tailwind CSS, Bootstrap , Material designs , vue cli , React native, Ionic , type script , Node js ,Mootools , Core PHP , PHP oop, Laravel , Wordpress , Open cart, oscommerce, Symfony, Mogo DB, Mysql DB, Indexed DB,SQL server, Doctrine,Server side Apache,Web socket, socket programming , Live web communication,Socket io, Mail chimp,restful api,s ,apiagility, Swagger,Api development, Api integration, Payment gateways(Paytm, paypal, 2checkout , Stripe, Payumoney). Mobile development : Java , Ionic, Cordova , android, React native Dataase: Mysql, PostgreSQL, Monogodb, Indexdb Server managment: AWS , HostGator, Godaddy , Nigix , Digital ocean,Cloud. Operating systems : Linux,Macintosh, windows. Version control : GitHub , Bit bucket, Git lab, Git stack. I promise only the top quality, fast turnaround and great communication. You will be reported with the intermediate deliveries and project status every day and you will be able to take control over the whole progress.
    vsuc_fltilesrefresh_TrophyIcon Java
    React Native
    Spring Boot
    Laravel
    Ionic Framework
    Angular
    React
    Next.js
    Node.js
    PHP
  • $30 hourly
    I'm a talented and skilled Senior Full Stack Web & Mobile & AI/ML Developer with over 9 years of experience specializing in a wide array of Web application, Mobile application, AI/ML software development technologies. Skilled in both front-end and back-end development, with expertise in responsive design and database management. A professional collaborative developer with a passion about researching and implementing new technologies, and a strong commitment to optimizing application performance and scalability.
    vsuc_fltilesrefresh_TrophyIcon Java
    App Development
    C++
    C#
    Python
    JavaScript
    Angular
    React
    Back-End Development
    Front-End Development
    Web Development
    Web Application
    iOS Development
    Android App Development
    Mobile Game
  • $28 hourly
    Software Developer with heavy focus on Android development. Over the last 5 years I was building Android applications on daily basis (8 years total in programming on different languages: Java, C++, PHP, Ruby, Go, JS). Very often it's client-server applications for which I also develop back-end with unique solutions. Gratefully, Denys.
    vsuc_fltilesrefresh_TrophyIcon Java
    User Interface Design
    API Development
    Google App Engine API
    Software Testing
    Android App Development
  • $36 hourly
    I started mine iPhone/iPad applications development career since 2008. Over than 30 different projects have been completed for iPad/iPhone. My overall software development experience are over 9 years and more related to JAVA2EE platform. Development areas I am most qualified: - excellent UIKit knowledges and good understanding of all UI Components - mobile application interaction with Server Side API (WebServices, JSON, custom XML responses, pLists, CSV) - local data store using SQLite, PLists or XML and synchronization with server - applications with video playback, broadcasting, video overlays, custom video controls - integration with FaceBook, Twitter, other popular social networks including russian: Odnoklassniki, vKontakte - Push Notifications, In App Purchase, Maps and Location, iAd/AdMob - knowledge of C++/C languages from my previous experience, C++/C applications/libraries porting to iOS platform - Android applications porting to iPhone I have all required devices for testing (iPhone/iPad) I am registered apple developer can work on a hourly basics as soon as on a project basics (in case of clear requirements). ready to work with an end clients: can help with requirement analysis, time estimation or architectural approaches, can make mockups before development.
    vsuc_fltilesrefresh_TrophyIcon Java
    XHTML
    iPad App Development
    WordPress
    JSON
    iOS Development
    Android App Development
    Apache Cordova
    Objective-C
    PHP
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