Hire the best Java developers

Check out Java developers 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 27,630 client reviews
  • $50 hourly
    My name is Saul Hidalgo, a Computer Engineer with a passion for developing Java and .Net software. I have been fortunate to work with exceptional teams and have had the opportunity to contribute to various sectors, including National Security/Defense in the United Kingdom, Oil companies, and Universities such as Harvard Business Publishing. The software I have created is currently being successfully utilized by these organizations. I thrive on new challenges and continuously seek opportunities to expand my skills. You can explore my public contributions on my GitHub account: saulhidalgoaular. Currently, I reside in Turkey and possess fluency in both English and Spanish. Below are my areas of expertise and skills: 1. Code Translation and Conversion: - Proficient in translating code across various languages, with expertise in Python, Java, Delphi, C++, and C#. 2. Document Management System (DMS) - OpenKM: - Extensive experience in developing workflows, automations, cron tasks, and integrations using the Java/PHP API. - Configuration of daily backups. - Skilled in utilizing OpenKM as a DMS. 3. Algorithms and Programming: - Strong command over algorithms and programming skills, particularly in C/C++ and Java. - In-depth knowledge of data structures, strings, sorting, arithmetic and algebra, combinatorics, number theory, backtracking, graph traversal, algorithms for graphs, dynamic programming, and computational geometry. 4. Accounting: - Well-versed in managing material movement between stores and shops. - Proficient in handling retail-related accounting tasks. 5. Point of Sale (POS) Area: - Experience in integrating POS software with label printers, fiscal printers, barcode readers, fingerprint scanners, and keyboards.
    vsuc_fltilesrefresh_TrophyIcon Java
    Core Java
    Microsoft Excel
    Document Management System
    API
    Algorithm Development
    Data Structures
    API Development
    Hibernate
    Object-Oriented Programming
    .NET Framework
    MySQL
    Desktop Application
    C++
  • $105 hourly
    ** HubSpot Design Certified ** Recently recognized as a HubSpot Champion User Worked on many different types of applications and with many different technologies. Quickly learn new programming languages and technologies. Can also read and understand existing code to find and fix bugs. Have 26 years experience in IT. Have a Bachelors Degree in Math as well as an MBA. I have worked with many programming languages including COBOL, Visual Basic, C, C++ and Java. Currently working on projects utilizing Angular, JQuery, Java Script, CSS, HTML5, Hubspot and Flex. I am familiar with content management systems. I have worked on front end designs/pages and back end services. Have done responsive development, desktop applications, and mobile applications.
    vsuc_fltilesrefresh_TrophyIcon Java
    CSS
    HTML
    Content Management System
    HubSpot
    CMS Development
    Website Customization
    Agile Software Development
    Blog Development
    Inbound Marketing
    Templates
    Business with 100-999 Employees
    iOS Development
    Android App Development
    JavaScript
  • $120 hourly
    10 years of experience working on native Android applications for high profile clients and businesses. 100% Job Success | 11,000+ Hours | Top Rated Plus | 5 Star Reviews Exclusively From planning, developing and publishing to maintaining and supporting high quality Android applications. I hope you see the experience displayed in my profile as an indication of my reliability. ✔︎ Constantly updating my knowledge with the most recent design patterns and code conventions; ✔︎ The delivery of a product that respects the highest standards of usability, performance and appearance is guaranteed; ✔︎ Great cost-benefit by delivering faster and higher quality products than the average; ✔︎ Flexible availability to always meet the client's needs. Vast experience managing development teams located in different places around the world. As an example, I've been managing a team that averaged 7 developers located in different countries, such as Canada, Ukraine, Pakistan, India and Brazil. ✅ Mobile Development Leader; ✅ Native Development; ✅ Kotlin and Java Expert; ✅ Clean code, DRY and KISS principles; ✅ Unit and automated testing; ✅ Well documented code; ✅ UI/UX Best Practices; ✅ NoSQL and SQL Databases; ✅ API Integration; ✅ Web Services Development. MySQL, SQLite, PostgreSQL, SQL Server, Firebase, Java, Kotlin, Android Studio, Android SDK, Android NDK, Device Owner, Play Store...
    vsuc_fltilesrefresh_TrophyIcon Java
    RESTful Architecture
    Android
    MySQL Programming
    Material Design
    Android SDK
    SQLite
    PHP
    Firebase Cloud Firestore
  • $40 hourly
    I have a passion for taking the web and making it mobile. Over last 10 years I got mobile development experience in a broad range of industries, including social gaming, education, sports entertainment, dating, restaurant management and rental solutions. I have solid understanding of full mobile and software development life cycles, UIX, web analytics, changing web standards, and Agile methodologies. Dedicated to continuously developing, implementing, and adopting new technologies to maximize development efficiency and produce innovative applications.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Maps API
    CSS
    Git
    SQL
    GPS
    Android SDK
    Smartphone
    Android App Development
    Android
    Kotlin
    User Authentication
  • $90 hourly
    I’m a programmer with more than 10 years of experience who can work in different programming langauges using different frameworks. I can create any application type: ● web based ● desktop If I don’t know any programming language or framework which you want to use to build your application then I can learn it in couple days. SKILLS ● PHP ● Javascript ● jQuery ● Bootstrap ● AJAX ● MySQL/PostgreSQL ● REST API ● HTML/HTML5 ● CSS/CSS3 ● C/C++ ● Ruby (and framework Ruby On Rails) ● Python ● Java ● CUDA Computation ● OCR (on C/C++, Python, Java) EXPERINCE ● Freelance 5+ years (up to July 2014). I was working hard to learn what clients want to see, to learn different programming languages and frameworks. Those years taught me to learn new things everyday to provide high-quality solutions for my client. Here's some of my works (PHP, MySQL, HTML, CSS, JavaScript): ○ dev.louepartout.com ○ kilosolution.com ● Swiss Interactive Software GmbH (August 2014 - December 2014). Front-End and Back-End developer for gambling platform and websites (using the platform). Here's you can see some of the websites we built (PHP, MySQL, HTML, CSS, JavaScript, Bash): ○ betboro.com ○ sports.flutterclub.com ○ sports.princessstar.com ○ globalbet.eu ● Ad.net (February 2015 - Present).
    vsuc_fltilesrefresh_TrophyIcon Java
    HTML5
    CSS 3
    C++
    MySQL
    React
    Bot Development
    Automation
    Data Scraping
    Python
    PHP
    Data Extraction
    Web Crawling
    JavaScript
    Selenium
  • $75 hourly
    I am a professional software developer with 25 years of experience. I focus on mobile app development for Android and iOS, web development, and cloud services. Throughout my career I have gained experience in many different technologies, from modern cloud, mobile, and web development architectures all the way back to mainframe systems. My app development experience includes location services, map integration, user authentication and user profile management, payment functionality, media playback including both audio and video, and in-app purchases. I can work with many services available from Amazon Web Services (AWS) and Google Cloud Platform (GCP). I am committed to producing a quality product. I always stand behind my work and communicate as much as I can. The more my client and I both know about what is being done, the happier everyone is.
    vsuc_fltilesrefresh_TrophyIcon Java
    ChatGPT
    Google Cloud Platform
    User Profile Creation
    Location-Based Service
    Firebase
    Amazon Web Services
    Node.js
    Kotlin
    Swift
    iOS Development
    iOS
    Android App Development
    Android
    Mobile App Development
  • $55 hourly
    Hi. I’m a native Android developer with 7+ years of software development experience. I’m working with modern development stack: Android Jetpack, AndroidX, Coroutines, LiveData, DataBinding, Room, Rx, DI, MVVM, Git, etc. I also have experience in​ using Flutter/Dart to build cross-platform solutions. Some areas in which I have extensive experience: - Media processing (photo, video, audio). - Geolocation. - Integration of third-party API like Facebook, Google, Twitter, Dropbox, Amazon. - Firebase services (FCM, Analytics, Crashlytics, AdMob, etc.). - Machine learning. - In-App Purchase. - Converting Web/IOS apps to Android. - And more… Please feel free to contact me and I'll help you at any stage, from an idea or small app to a full-scale solution. Thanks!
    vsuc_fltilesrefresh_TrophyIcon Java
    Android SDK
    Mobile App Development
    Android App Development
    Firebase
    Smartphone
    Android
    Flutter
    Kotlin
  • $30 hourly
    Hi, I am one of the best freelancer for web scraping / crawling / automated data extraction solutions on Upwork. I am doing web scraping jobs only and completed over 500 jobs and served hundreds of clients. My prices are more than reasonable and affordable compared to the service quality you will get, so please do not hesitate to request a quote if you need an expert scraper / crawler. I am developing my own custom program for each website I am going to scrap / crawl. I'm not using a pre-built software so i can adapt my program to any format and any website easily. There is no exceptional case, i can scrape any website using any technology (captchas, ajax requests etc.). I can provide scraped data in whatever format you want: csv, excel, xml, mysql etc. I can also provide you the program i used to scrape that website. I am developing my programs in java and you may run them on windows, mac and linux/unix machines. Up to now I developed applications to extract data from well known e-commerce marketplaces, search engines, business and local directories, real estate listings and many other websites. The work on Upwork is my full time job and not a side gig, so I dedicate a lot of attention to my clients, available to respond throughout the day, and work full days to complete the projects as fast as possible. You won't regret choosing to work with me. Thanks Taras H
    vsuc_fltilesrefresh_TrophyIcon Java
    CSS
    HTML
    Ruby on Rails
    JavaScript
    Data Scraping
    Python
  • $40 hourly
    Creative back-end developer dedicated to building elegant solutions that meet business demands. Over 10 years of experience developing software of different scales ranging from small startups to large enterprise applications. Implemented back-end as well as front-end with the main focus on the former. Good communication skills proven through work experience in distributed team projects. 𝗕𝗮𝗰𝗸-𝗘𝗻𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Java, Kotlin JavaEE, Spring, Guice JDBC, JPA, Hibernate JUnit, Mockito, Cucumber, FitNesse Maven, Ant Git, SVN Jenkins, Sonar TypeScript, JavaScript Node.js Jest Webpack 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, MariaDB, Oracle MongoDB, AWS DynamoDB 𝗖𝗹𝗼𝘂𝗱 𝗣𝗿𝗼𝘃𝗶𝗱𝗲𝗿𝘀: Amazon Web Services 𝗦𝗲𝗮𝗿𝗰𝗵 𝗘𝗻𝗴𝗶𝗻𝗲𝘀: Solr, AWS Elasticsearch 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Vue HTML, CSS, Bootstrap Should you need any further information, please do not hesitate to contact me.
    vsuc_fltilesrefresh_TrophyIcon Java
    Distributed Computing
    Node.js
    Microservice
    Amazon Web Services
    NoSQL Database
    Spring Framework
    TypeScript
    JavaScript
    SQL
    MongoDB
  • $55 hourly
    Distributed and highly concurrent software with 10+ years of experience. BSc and MSc in Computer Science. Former Nokia employee. I have served in the telecommunication industry for a decade and was responsible for products serving millions of users daily.
    vsuc_fltilesrefresh_TrophyIcon Java
    Chatbot
    Large Language Model
    Distributed Computing
    Multithreaded Programming
    JDBC
    Spring Boot
    Python
  • $50 hourly
    Native Android Developer | Java & Kotlin 🚀 Top Rated Plus 💯 100% Job Success Score 8+ years of experience working on native Android applications for high profile clients and businesses. I've strong Java/Kotlin programming skills including low-level performance optimizations and memory management. ✔ Ml-kit, OpenCv, TensorFlow, Camera, Image Processing ✔ Clean Architecture, MVVM, Firebase, Coroutines, Live data, DataBinding, Dagger2/Hilt, Room, Retrofit, Glide, Payments 🚀 Why Choose Me? 8+ Years of Servicing High-Profile Clients Strong Java/Kotlin Programming Skills Developer with a Keen Eye on Technological Advancements Detail-Oriented and Timely Deliveries
    vsuc_fltilesrefresh_TrophyIcon Java
    Android App
    Android Studio
    Native App Development
    Firebase
    Android App Development
    Kotlin
    Android
    Mobile App Development
    SQLite
    Camera Operation
    NFC
    Mobile App
    Android SDK
    OpenCV
  • $40 hourly
    I have strong experience in web applications using .NET Web Forms, MVC, Java Spring MVC, Primefaces, Richfaces and other Java Server Faces frameworks. In addition, I have worked as a programmer in Unity, and using C++, Lua, and C# programming languages. I have been working as a developer for seven years and currently I am a EPiServer Certified Developer and pursuing a Sitecore certification. Knowledge: C++, C#, .NET 4.0, Web Forms. MVC .NET, Java, Swing, Angular JS, Python, JSF, JPA, EJB, Bootstrap, Unity 3D, SQL Server, MySQL, Oracle, MongoDB, Scrum, Power Designer, WCF, UML, Windows Phone and Android. Episerver MVP 2019
    vsuc_fltilesrefresh_TrophyIcon Java
    Jakarta Messaging
    CSS
    API Integration
    AJAX
    Microsoft SQL Server
    ASP.NET Core
    RESTful Architecture
    API
    Python
    C++
    C#
    Visual Basic
    ASP.NET
    ASP.NET MVC
  • $60 hourly
    Fundamentals: Experienced Android Developer 20+ released projects 7+ years of Android development experience English: Fluent I've been developing high-quality mobile apps for more than 7 years now. I've been working on a broad variety of projects: mobile banking apps, mobile clients for enterprise systems, educational and entertaining apps, b2b and b2c projects. I've worked with applications requiring different technologies and skills. I especially want to note the experience of fixing errors made by previous developers.
    vsuc_fltilesrefresh_TrophyIcon Java
    RESTful Architecture
    In-App Purchases
    Mobile App Development
    Android NDK
    Google Maps API
    Material Design
    Firebase
    Mobile UI Design
    Websockets
    Android SDK
    Android App Development
    GraphQL
    SQLite
    Kotlin
  • $15 hourly
    👋 Greetings! I'm Naveed Khan, a passionate and skilled full-stack developer with a proven track record in crafting efficient and elegant digital solutions. With a diverse skill set ranging from frontend to backend technologies, databases to DevOps, and cloud platforms, I bring a comprehensive approach to every project. 🚀 Technical Expertise: On the frontend, I specialize in turning design concepts into interactive, user-friendly interfaces using React JS, Next JS, Vite JS, HTML, CSS, and JavaScript. I also have a keen eye for aesthetics and a knack for creating responsive designs with Tailwind CSS. In the backend realm, I have hands-on experience building robust APIs and server-side applications using Spring Boot, Express JS, and Django. My backend solutions are designed for high performance, security, and scalability. 💾 Database Proficiency: I'm well-versed in working with a variety of databases, including Oracle, MySQL, PostgreSQL, and MongoDB. Whether it's relational or NoSQL, I can design efficient database structures and optimize queries to ensure seamless data management. 🛠️ DevOps & Cloud Mastery: My expertise extends to the DevOps landscape, where I've worked with tools like Jenkins, Circle CI, and Team City to automate and streamline the development and deployment processes. I'm also proficient in containerization using Docker and orchestration with Kubernetes. Monitoring and troubleshooting are second nature to me, thanks to my experience with Splunk. As for cloud platforms, I've successfully deployed applications on Oracle Cloud, Azure, AWS, and GCP. I can help you choose the right cloud solution for your project's needs and ensure a smooth migration if required. 🌟 Why Choose Me? I'm not just a developer; I'm a problem solver. I take pride in understanding the unique challenges each project presents and tailoring solutions that align with business goals. My dedication to clean code practices, attention to detail, and commitment to staying up-to-date with the latest industry trends ensures that the solutions I deliver are of the highest quality. 📢 Let's Collaborate: Whether you need a dynamic web application, a seamless API integration, or assistance with your DevOps strategy, I'm here to help. Let's discuss your project requirements and create something amazing together. Feel free to reach out to me, and let's turn your vision into reality!
    vsuc_fltilesrefresh_TrophyIcon Java
    Tailwind CSS
    CI/CD
    Kubernetes
    Docker
    Redux
    React
    Spring Boot
    JavaScript
    Python
  • $22 hourly
    I have been working as Software Developer for the last 8+ years, mainly FullStack. I'm an autodidact, disciplined person and I enjoy developing software. I'm very skilled with Java, been working with Java in a corporate environment since 2011, and also I'm very good with JavaScript and frameworks such as Angular and React Native. Using Git, mostly, for version control and relational and non-relational database experience.
    vsuc_fltilesrefresh_TrophyIcon Java
    Android App Development
    C#
    Ionic Framework
    Xamarin
    JavaScript
    Swift
    AngularJS
  • $10 hourly
    I am Java/Kotlin android developer with 2 years of experience. I can make a solid and maintainable android application with clean architecture principles and modern technology stack. Jetpack Compose, Dagger/Hilt, Kotlin Coroutines, etc.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Play
    Android Room Persistence
    Android App Development
    Retrofit
    Unit Testing
    Android SDK
    Android App
    Model View Intent
    Dagger
    Android
    Coroutine
    Model View ViewModel
    Kotlin
    Clean Architecture
  • $40 hourly
    Have significant experience in analysis, design and development activities for new web applications using Java and J2EE,HTML,JS,CSS,solr, elasticsearch,AWS,FCM, Twilio , Helm chart, K8S technologies along with performing day-to-day maintenance and enhancement activities of existing applications for a period of 6 years.
    vsuc_fltilesrefresh_TrophyIcon Java
    Firebase
    Apache Solr
    MySQL
    Microservice
    Spring Boot
    Twilio API
    Docker
    Jenkins
    Kubernetes
    Node.js
  • $30 hourly
    I am an expert in creating Native Android and iOS apps. I follow modern software development practices. I write high-quality Android apps by following standard practices so my apps always have the best performance and present a smooth user experience. If you have an app idea and want to turn it into reality or you already have an app and you want to improve it, I can help you with that. I am listing my skills below for you. Programming Languages and Frameworks • Java • Kotlin • Swift • SwiftUI • RxJava • RxKotlin • Android NDK • SceneForm(Framework to add AR in your app) Android Jetpack Components • ViewModel • LiveData • Room(Sqlite) • JUnit • Mockito • Navigation Components Dependency Injection • Dagger • Kodein Databases: • Room(Sqlite) • Firebase (Realtime database, notifications, Crashlytics…etc) • MongoDB Realm • MySql • Core Data Software Development Tools: • Version control (git) • Continuous Integration • Slack • Trello Other than that I have experience with APIs like Twilio, Sinch, Agora, Facebook, Twitter etc. I also have experience with Android Bluetooth. I can build apps that can communicate with devices like household items through Bluetooth. These are just a few of the skills I have experience with. Please contact me if you're interested and I'll help you build the next big thing like Airbnb, Snapchat etc.
    vsuc_fltilesrefresh_TrophyIcon Java
    SQL
    RxJava
    Apple Xcode
    Android SDK
    Android App Development
    Flutter
    Swift
    Kotlin
    React Native
    C++
  • $30 hourly
    I've worked with many Clients across the world to bring their projects from idea to completion and profitability. What sets me apart from everyone else? - Self motivated mobile app developer and I have built multiple mobile apps from the ground up. I learned what users care the most is how the mobile app looks and feels (UI/UX). Through my experience of over 10 years building out my own mobile app ideas below and building my clients apps, I've gained massive amounts of knowledge on how to create beautiful looking mobile apps that look and run great. Why me? - Guaranteed project success, on time, every time. There's nothing worse than flakey developers, poor communication, missed deadlines and overstretched budgets. - Top quality code and architecture, built and secured to the highest professional standards - Supporting platforms that get millions of monthly hits. - Very experienced in jumping in and rescuing failing/failed projects. - Responsive and communicative with regular updates. - Highly qualified and experienced. Dozens of testimonials on Upwork - Driven, responsive and efficient, known for going the extra mile and solving the “impossible”. La Tribune - It is French News Application. It has all categories like Sports, Social, Current Affairs, Politics etc. Tibtop Connect - Application will allow your mobile to connect via Bluetooth to your Tibtop-Connect tracker shin guards and this allow you to view and analyze most of your performance from a multitude of data.
    vsuc_fltilesrefresh_TrophyIcon Java
    Business with 1-9 Employees
    Firebase
    Camera
    Android
    Android Studio
    Android App Development
    Kotlin
    Android SDK
    UI/UX Prototyping
    PayPal Integration
    Google Glass
    Web Service
  • $160 hourly
    I am an experienced, versatile, and creative full-stack software engineer with extensive experience in designing and building innovative technology solutions to solve complex problems. HireRight, 8/3/23, EFE, DF9742BFF305B507A30CB5BC320A2E71
    vsuc_fltilesrefresh_TrophyIcon Java
    Quantitative Analysis
    API Development
    Vue.js
    JavaScript
    React
    HTML5
    AngularJS
    TypeScript
  • $75 hourly
    Experienced iOS/Android Developer in Swift / Java who has successfully delivered several apps to the App Store (Apple and Google Play Store) on time and on budget. I am familiar with most of popular design patterns (MVC, MVVM). I have vast experience working w/ Social networking apps, Location/Map based apps, Fitness apps, Food ordering apps, Mobile games, ARKit, CoreLocation, Alamofire, as well as several other popular 3rd party SDKs. As a reliable Top-Rated Plus developer with over 8 years of experience, I’m committed to the highest industry standards in all the work I do. I also pride myself on possessing a high level of professionalism, maintaining excellent communication, meeting and exceeding client expectations, and providing solutions for problem-solving in a timely manner. I come highly recommended from all my previous clients and hope that I can continue to do so if you choose to hire me for your project. Got an idea for the next big thing? Have you been dreaming about creating your own application? If you have wireframes and need to turn them into a functional application or perhaps just a notebook with drawings of your designs, I can assist you in turning that creativity into a polished and published application for both Android and iOS platforms.
    vsuc_fltilesrefresh_TrophyIcon Java
    Shopify
    Web Development
    AR Application
    App Development
    JSON
    Chat & Messaging Software
    Push Notifications
    Android
    ARCore
    MySQL
    Swift
    Native App Development
  • $45 hourly
    I'm an experienced and professional mobile and software developer doing freelance, working remotely (telecommute) and looking for great projects to work on. I love to make your ideas alive. I care about every single line of my code. Summary of Qualifications • Expert understanding of core mobile technologies standards • Development of software, mobile web apps • Solid understanding of how the android OS works for the best performance • Passionate about all aspects of development • Modern tooling and workflow • Ability to write high-performance, maintainable and reusable code • Appreciation for quality, usability, user experience (UX), accessibility and compatibility • 5+ years of experience • Highly motivated, self-starter, fast learner, hard worker, organized, attentive to details and a team player • Good communication skills. Fluent in English , both written and verbal • Sense of aesthetic and design • Always up-to-date with the latest technologies, techniques, optimizations and best practices Hire me!
    vsuc_fltilesrefresh_TrophyIcon Java
    Core Java
    Mobile App Development
    Android App Development
    In-App Purchases
    Camera
    Social Media Account Integration
    Android
    Firebase
  • $70 hourly
    I am software developer with a Bachelor of Systems Engineering with more than 10 years of experience, 4 years experience in web-scraping/extraction using python frameworks and other tools. I can scrap any website and provide scraped/extracted data in any format you want: xls/csv/xml,json,mysql, etc. My experience and skills: - Data scraping / extraction, Data mining, Web-scraping - Scripting for Zoho, Googlesheets, AutoIt, AutoHotKey, PowerShell, Shell, Excel Macro VBA - Database: PostgreSQL, MySQL, Oracle, SqlServer, MS Acces, Sql Lite, FireBird - Docker - Linux: Fedora, CentOS, Debian, Ubuntu - Programming: Java, PHP, Python, JavaScript, Angular, React, Vue, Electron JS, NodeJS, TypeScript - FrontEnd: JSF, PrimeFaces, RtichFaces, IceFaces, Extjs - Persistence: Hibernate, JPA - Frameworks: Spring, Tapestry, Struts - Developer with Frameworks like Mendix, OutSystem
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Apps Script
    App Development
    Database Administration
    PrimeFaces
    Scripting
    Hibernate
    ETL
    SQL Programming
    Spring Framework
  • $30 hourly
    Known Skills :- Core JAVA , JavaFX, SpringBoot, REST Api Expert in Core Java. Expert in creating any kind of Desktop Applications using JavaFX. 100 % accuracy and 100 % client satisfaction.
    vsuc_fltilesrefresh_TrophyIcon Java
    Data Scraping
    XML
    Online Research
    Web Crawling
    HTML
    ETL
    JavaFX
    Desktop Application
    MongoDB
  • $40 hourly
    10+ Skills | 15+ Years experience in Engineering field Android, Java/Kotlin/Python/C/SQL, UI/UX, Git, GitHub/GitLab/Bitbucket, Android Studio/IntelliJ IDEA/Eclipse, Trello/GitLab board, SOLID Firebase and much more - developing projects from scratch (setup, architecture, features development) - deveopment for embended devices - support legacy projects - integration of new technologies - working with Google guidelines I can just do any job for you, no matter how difficult the task you describe I do
    vsuc_fltilesrefresh_TrophyIcon Java
    Firebase
    Coroutine
    Retrofit
    Android Studio
    SQLite
    Kotlin
    Android App Development
    Mobile UI Design
  • $25 hourly
    I'm a senior developer with 5+ years of experience in developing apps on iOS and Android. And now I'm very happy to see my profile is TOP RATED PLUS on Upwork. I have created many apps with high quality and affordable prices. Over the past 4 years, I have satisfied all of my clients when making their ideas come to life with really great apps. Please review my portfolio and client's feedback to see the testimonials. My experience with iOS and Android development: - Swift / Objective-C - Java - SDK and API add for the native app - Social Networking app - UIKit, CoreFoundation, CoreData, iAd, MapKit, CoreLocation, CoreGraphics, StoreKit - Ads - Payment gateway and In-App purchase - Location tracking - Image/Video processing - Other frameworks I was a creative person before I became a developer. As such, I have an eye for design, mobile analytics and QT/Testing. Hope you will contact me for your project! Thanks
    vsuc_fltilesrefresh_TrophyIcon Java
    iPad App Development
    Business with 1-9 Employees
    iOS SDK
    Android SDK
    Android App Development
    iOS Development
    In-App Purchases
    In-App Advertising
    Swift
    Objective-C
  • $25 hourly
    🏆 TOP RATED PLUS on Upwork 🎯 100% Job Success 🥇Certifed Developer 💎 Master in Computer Science ✔️ 100% Commitment I am Liferay DXP Professional Certified Developer with a demonstrated history of working in the information technology and services industry and Strong engineering professional with a Master's Degree focused in Computer Science. As a Liferay developer, I have worked with a wide range of businesses and sectors, including Fortune 500 corporations, non-profits, colleges and universities, the healthcare industry, e-commerce, collaborative platforms, sports domains and many more. Why Choose Me❓ ✔️Proven Track Record: 100% job success, Top rated profile on upwork. I have successfully completed numerous Liferay projects for clients worldwide, earning positive feedback and building long-lasting relationships. ✔️Exceptional Communication: I believe in clear and timely communication. I keep my clients updated throughout the project lifecycle, ensuring transparency and trust. ✔️Tailored Solutions: I understand that every project is unique, and I take a personalized approach to cater to your specific business needs. ✔️Problem-Solving Attitude: Complex challenges don't intimidate me. I enjoy finding creative solutions to overcome hurdles and deliver outstanding results. ✔️On-Time Delivery: I value your time as much as mine. You can count on me to deliver your projects on or before the agreed-upon deadlines. ✔️Client Satisfaction: My ultimate goal is your satisfaction. I am committed to providing a seamless experience and exceeding your expectations. 🎯 Skilled in ➜ Liferay DXP Professional Backend Certified Developer ➜ 9+ Years of experience in Liferay ➜ Worked with Liferay 7.x, 6.x, 5.x ➜ Expert in OSGI development ➜ Liferay Angular Portlet development ➜ Liferay 7/DXP Customisation ➜ Liferay 7/DXP Theme Development ➜ Liferay Plugin Development with the old version ➜ Enterprise Portal Solutions ➜ Content Management Solution ➜ SSO with Liferay ➜ Liferay integration with LDAP, CAS, keyclock ➜ Liferay Portal Performance tuning ➜ Liferay migration and upgrade ➜ Liferay workflow management ➜ Liferay Elastic search integration ➜ Liferay clustering ➜ Liferay Headless Implementation Expert 📞Let's Connect: Ready to take your Liferay project to new heights? I am excited to discuss your requirements and offer a tailored solution to meet your business objectives. Feel free to message me.
    vsuc_fltilesrefresh_TrophyIcon Java
    Database
    Liferay
    RESTful API
    Microservice
    TypeScript
    Spring MVC
    CSS
    Spring Framework
    Angular
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How to Hire Top Java Developers

What is a Java developer?

Java developers write universally compatible and scalable applications using Java code and tools. They can build and maintain high-traffic server-side apps, develop mobile apps, and handle security, software debugging, quality control, testing, and much more.

How do you hire a Java developer?

You can source Java developer talent on Upwork by following these three steps:

  • Write a project description. You’ll want to determine your scope of work and the skills and requirements you are looking for in a Java developer.
  • Post it on Upwork. Once you’ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview Java developers. Once the proposals start coming in, create a shortlist of the professionals you want to interview. 

Of these three steps, your project description is where you will determine your scope of work and the specific type of Java developer you need to complete your project.  

How much does it cost to hire a Java developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions. Learn about the cost to hire a Java developer.

How do you write a Java developer job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

Job post title

Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample Java developers job post titles:

  • Java developer needed for poverty action application
  • Seeking Java developer for real-time music jamming app
  • Looking for a Java developer to help with a Shopify website

Project description

An effective Java developers job post should include: 

  • Scope of work: From Android apps to big data analytics, list all the deliverables you’ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain industries, software, or coding languages, mention this here. 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Java developer job responsibilities

Here are some examples of Java developers job responsibilities:

  • Develop and implement high-volume, low-latency applications to meet organizational goals
  • Ensure implementation of best security practices for users and networks
  • Define application objectives and functionality to deliver high availability and performance
  • Manage programming projects to design, test, and debug software

Java developer job requirements and qualifications

Be sure to include any requirements and qualifications you’re looking for in Java developers. Here are some examples:

  • Experience with server-side technologies such as Apache, JBoss, Geronimo, GlassFish, etc.
  • Familiarity with Android apps, enterprise software, scientific computing, and/or data analytics
  • Background in database management, software development, and computer architecture
  • Profound insight of Java and relational databases, SQL, and ORM technologies
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