Hire the best Glassfish developers

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Clients rate Glassfish 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 Glassfish Developers
    Core Java
    Microsoft Excel
    Document Management System
    API
    Algorithm Development
    Data Structures
    API Development
    Hibernate
    Object-Oriented Programming
    Java
    .NET Framework
    MySQL
    Desktop Application
    C++
  • $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
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    Android App
    Android Studio
    Native App Development
    Firebase
    Java
    Android App Development
    Kotlin
    Android
    Mobile App Development
    SQLite
    Camera Operation
    NFC
    Mobile App
    Android SDK
    OpenCV
  • $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!
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    Android SDK
    Mobile App Development
    Android App Development
    Firebase
    Smartphone
    Android
    Flutter
    Java
    Kotlin
  • $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.
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    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
    Java
  • $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.
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    ChatGPT
    Google Cloud Platform
    User Profile Creation
    Location-Based Service
    Firebase
    Amazon Web Services
    Node.js
    Java
    Kotlin
    Swift
    iOS Development
    iOS
    Android App Development
    Android
    Mobile App Development
  • $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.
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    Distributed Computing
    Node.js
    Microservice
    Amazon Web Services
    NoSQL Database
    Spring Framework
    TypeScript
    Java
    JavaScript
    SQL
    MongoDB
  • $30 hourly
    I am Osemwingie Oshodin, I am a value driven mobile engineer. I am proficient in Kotlin, Kotlin multiplatform, android architecture, Jetpack libraries, backend development using Ktor, and building cross-platform applications using Flutter I have successfully deployed multiple mobile applications built from scratch to the google play store. I have also contributed to many projects by working in a team. I have gone on to further my skills in software engineering by taking relevant courses and acquiring a google associate developer certificate. 
I am excited about learning new technologies. My utmost priority is to satisfy my clients by delivering optimal products that satisfy the expectation of the end-users. In my free time, I like to watch sports and listen to music.
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    Flutter
    Java
    Android App Development
    Kotlin
    JetPack
    Model View ViewModel
    Android
  • $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).
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    HTML5
    CSS 3
    C++
    Java
    MySQL
    React
    Bot Development
    Automation
    Data Scraping
    Python
    PHP
    Data Extraction
    Web Crawling
    JavaScript
    Selenium
  • $30 hourly
    I have 11 years experience in software development. My technology stack are as follows: - VueJS/Next.js/React/Astro - TypeScript - NodeJS - PHP - Custom/Laravel - TailwindCSS - Bootstrap - JQuery - Docker - CircleCI (CI/CD) - Github Actions - Serverless - AWS Services - Java (Android development) - Server Management - Ubuntu & Windows - Shell/Bash Scripting (deployment automation) I am keen to details, and I work hard to provide beyond expectations. Let's work together.
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    Docker Compose
    AWS CloudFormation
    Amazon ECS
    AWS Lambda
    Next.js
    React
    CircleCI
    PHP
    Vue.js
    Laravel
    Amazon Web Services
    Java
    Docker
    JavaScript
    Node.js
  • $16 hourly
     Able to Help in QA Manual and Automation and Project Management Profile Overview  I have been a professional Automation Engineer for nine years; I have experience in both Manual testing and Automation Testing.  Availability 24*7 on Skype or Phone  Single women freelancer  Good Knowledge of agile and Scrum methodology  Good Experience working with large remote team Application Tested  eCommerce Application(Magneto,WordPress,OpenCart and etc)  Game Application,  ERP Application,  Mobile Application and Game  Facebook Game  Healthcare application  Travel Domain  Social Networking website  WordPress website (Front end and Backend),  WordPress Plugin,  WordPress Theme  Server Testing  Magento  508 compliance Testing  HTML and CSS validation  API Testing Type  Manual Testing  Functional Testing  Usability Testing  Regression Testing  Integration Testing  Compatibility Testing  Database Testing  Beta Testing  Security Testing Automation Testing  Functional Automation Testing:HP-QTP, Selenium and Rational tool  Load Testing:HP Loadrunner,jMeter,Silkperformer  Security Testing:IBM-Appscan,HP-Webinspect,ZAP Proxy  Test Management Tool: JIRA,Mantis Forgbugz,Assembala,Asana,Teambox and Readbooth  Compatibility Testing: Browserstack  A/B Testing: Google Analytics, Optimizely Project Management  Test case  Test Plan  Use Cases  All Checklist Design  WireFrame Design  Requirement analysis document design  User Manual Design  Able to manage development and Testing Team Devices available for testing  Windows XP(32bit,64 bit )-Browser IE(7,8,9) ,Firefox, Chrome,Safari  Windows 7 (32bit, 64 bit)-Browser IE (9,10,11) ,Firefox Chrome,Safari  Windows 8(64 bit)-Browser IE(9,10,11),Firefox Chrome,Safari  Windows 8.1(64 bit)-Browser IE (9,10,11),Firefox Chrome,Safari  Windows 10(64 bit)-Browser Edge,Firefox Chrome,Safari  MAC OS X 10.10(64 bit) Yosemite –Browser Firefox ,Chrome,Safari Mobile and Tablet  Samsung Galaxy Tab 2, Tab 4  Android Mobile (2.3,3.1,4.1,4.0.2,4.4.4.5.1)
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    Functional Testing
    Cucumber
    Appium
    Mobile QA
    Selenium WebDriver
    MySQL
    Jenkins
    Java
    Manual Testing
    API Testing
    Selenium
    Git
    Continuous Integration
    Automated Testing
    Azure DevOps
  • $90 hourly
    A coder with 12 years of experience in web development. I've worked on Java (6 to the latest), Grails (1.3.7 to latest), CakePHP 2/3/4, and PHP5, PHP7, and PHP8 having very good knowledge of HTML, Javascript, and its libraries (jQuery, Reactjs, ReactNative, Nodejs, etc), and CSS/SCSS. Worked in the team as well as individually. Very good at handling subversion and coordination with different version controls like SVN, and GIT. Qualities: 1. Excellent logical and problem-solving skills 2. Very good learner 3. Excellent communication skills 4. Helping nature 5. Scheduled and smart worker Languages, tools, and platforms: 1. Java (6 to latest) 2. Groovy on Grails (1.3.7 to latest) 3. PHP, CakePHP 2/3/4 4. JQuery, JQuery mobile, Bootstrap, Foundation CSS, D3.js, AngularJs, KnockoutJs, ReactJs, ReactNative 5. Google Apps Integration 6. Amazon Web Service (Ec2, RDS, Transcoder, S3, SQS, SNS, etc.) 7. Heroku 8. MySQL, Postgres Have experience in implementing functionality like: 1. Dynamic form builder 2. Reports generation 3. Business Intelligence applications 4. CRM applications 5. Firearms management applications 6. Calendar applications 7. Wedding management application 8. Dating websites 9. Google Marketplace Application integration 10. PayPal, Mollie, and other payment integration 11. Video Streaming
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    XML Web Services
    JavaScript
    Google Maps API
    Apache Groovy
    Grails
    CodeIgniter
    PHP
    Java
    SQL
    Bitbucket
    CakePHP
    MySQL
    RESTful API
  • $30 hourly
    Are you looking for a creative Android developer? Someone who can deliver all the details of your project exactly the way you want? A professional individual who promises above expectations? He has done a bunch of Android developer jobs and He can manage applications with +1M users with 99% crash-free such as YallaShoot app. He will deliver an application with high performance, best practices, and amazing user experience. Also, he takes pride in his ability to ask the right questions about your project to understand the requirements clearly and suggest features and resolutions that benefit both of you. By the way, he will finish any Android project no matter what it is and eager to complete high-end projects in deadline-oriented environments. Compliance with up-to-date Google designs standard is in principle, bringing passion to perfect UI and UX into every project. His main goal is to create high-quality, efficient applications and he is looking for a long-term partnership. Skills: ------- ✔️ Android components (Activities, Services, Content Providers, Broadcast Receivers). ✔ M: Material design, Multiple-screen support, Multiple-language support. ✔️ Java Core, Threads, Collections. ✔ Gradle for Android and Java. ✔️ CVS: Git, Bitbucket, GitHub. ✔ Databases: SQLite, MySQL. ✔️ Fragments API, Intents, etc. ✔ IDE: Android Studio. ✔️ UI: JSON, XML. ✔ Restful API, Web Service, PHP, Laravel. ✔️ Login: Facebook, Gmail. ✔ GPS, Google map, real-time location. Libraries used as follows: ------------------------------------- 1️⃣ Tools: Fabric, LeakCanary, Timber. 2️⃣ Payment; Braintree SDK. 3️⃣ Firebase: Crashlytics, Cloud Messaging, Authentication, Analytics. 4️⃣ Testing: Espresso, JUnit, Mockito. 5️⃣ Network: Retrofit, Gson, OkHttp. 6️⃣ Media: Exo-player, Media player, FFmpeg. 7️⃣ Ads: AdMob, Leadbolt, Airpush. 8️⃣ UI: Butterknife, Picasso, Glide. 9️⃣ Push notification: One Signal, FCM. 🔟 VPN: OpenVPN, VPS servers. 🔟 VPN: OpenVPN, VPS servers. His process contains the following: ------------------------------------------ ➡️ Knowing your business goals and needs. ➡️ Designing a prototype for the application that meets your business goals. ➡️ Turning the final prototype into a fully functional Android app. ➡️ Test it to ensure that it's functioning well across different Android versions, and screen sizes. ➡️ Supporting your application to ensure everything is functioning in the best way possible. I would love to look at your project requirements and prove to you that your satisfaction is my satisfaction. Feel free to contact me anytime! I'll be happy to help with a consultation. Thanks for visiting! Kind regards,
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    Object-Oriented Programming
    GPS
    Google Maps API
    XML
    Web Service
    Laravel
    Android SDK
    Android
    Firebase
    Java
  • $50 hourly
    I'm an Oracle-certified Java expert with much experience in backend technologies, including but not limited to Spring Framework, JPA, MongoDB, etc. I'm also an AWS-certified and Kubernetes-certified DevOps engineer; hence, I can help if you need additional infrastructure resources. With 15,000+ hours of work on Upwork alone, I believe I can make a meaningful contribution to your project. As a side note, if you do a Google search with the keywords "spring bean", "spring boot interview questions", or "maven integration testing", you'll find my writing at the top spots.
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    Terraform
    Docker
    Web Service
    Hibernate
    RESTful API
    MySQL
    API
    Kubernetes
    Amazon Web Services
    Spring Framework
    Spring Boot
    Java
  • $25 hourly
    Minecraft Server Developer Extraordinaire Hello, I'm Pawel, a seasoned Minecraft server developer with over 7 years of experience in crafting and optimizing immersive gaming environments. Expertise: 🛠️ Minecraft Server Development: Crafting robust servers and plugins, staying updated with the latest trends. 💻 Java Programming: Creating efficient, secure, and high-performance code. 🧰 Development Tools: Skilled in IntelliJ IDEA and managing databases with T-SQL and PL/SQL. ⚙️ Systems Management: Expert in managing and optimizing Minecraft server systems. 🌐 Server Technologies: Proficient in Paper (Spigot) and BungeeCord configuration. 🚀 Redis: Extensive knowledge in using Redis for caching, pub/sub messaging, and synchronizing multiple servers for real-time data consistency. 🔌 API Integration: Enhancing functionality and connectivity with API integrations. 🖥️ Swing Applications: Developing modern and functional Swing applications. 🤖 Additional Skills: Web scraping, automation, algorithm optimization, and bot development. Collaboration: Passionate about creating seamless Minecraft experiences. Let's collaborate to bring your Minecraft vision to life. Contact: Ready to transform your Minecraft project? Contact me today and let's craft extraordinary adventures together.
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    SQL
    Plugin Development
    JetBrains IntelliJ IDEA
    Minecraft
    phpMyAdmin
    Java
    Linux
  • $20 hourly
    I have 14 years of software development experience overall. • Motivated and reliable Android Developer with an excellent work ethic and programming language knowledge base • Able to build applications from concept to final product to the client's or project's specifications • Experienced in object-oriented programming; development, testing, and debugging code; design UI • Able to work well independently or as part of a professional development team in order to meet and achieve project goals I have experience with: - Java - Kotlin - Android SDK - Android architecture components - Google Play Services - Firebase, Parse, Backendless, Cloudinary SDKs - Retrofit - RxJava 2 - Dagger 2 - MVP, MVC, MVVM - Testing - UI design with Material Design - Social media integration (Twitter, Facebook, Google plus, VK) - Git
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    Tablet
    Smartphone
    Android
    Dagger 2
    Java
    Android App Development
    Mobile App Development
    JSON
    Kotlin
    Android SDK
    Firebase
  • $20 hourly
    I'm a Java Developer with 4+ years of experience. I love learning new things and developing hard projects:) I am experienced in: • Java, Kotlin, Databases(MySQL, SQLite, Redis, MongoDB) • Plugin development: Bukkit/Spigot/Paper and Proxy(bungee,waterfall etc), modifying Proxy core • Minecraft mod development with Forge (any version) • Modification of server and client cores from oldest Alpha mc versions to 1.12.2 release • Pterodactyl panel • Creation and maintenance of Minecraft and Web servers on Linux or hosting provider • Spring services
    vsuc_fltilesrefresh_TrophyIcon Glassfish Developers
    Plugin Development
    JetBrains IntelliJ IDEA
    Kotlin
    Gradle
    Database
    phpMyAdmin
    Apache Maven
    Java
    Minecraft
    API
    Unix Shell
    Linux
  • $80 hourly
    I am a software engineer with 20 years of experience in multiple industry. I am a very passionate and an excellent problem solver. I work with Java 11 using Spring, Elastic Search, Jersey, Hibernate, Postresql , Mysql and ActiveMQ. I also have a lot of experience in AWS services such as Cloudformation, DynamoDB, Lambda, SQS , RDS. I have the AWS developer associate certification.
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    PostgreSQL Programming
    Linux System Administration
    Apache ActiveMQ
    Amazon Elastic Beanstalk
    AWS Lambda
    Hibernate
    Java
    Oracle Database
    Docker
    RESTful API
  • $15 hourly
    Hi, I'm a software engineer with several years of professional and development experience, working on JAVA backend development. Currently, I am integrated into the backend development team.
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    JSON API
    Swagger
    Computer Skills
    Hibernate
    Web Application
    Java
    Spring MVC
    Spring Boot
    Grails
    Jakarta Server Faces
    Jakarta Server Pages
    Apache Groovy
  • $56 hourly
    I'm a full-stack developer and a team lead at Githubit, a professional web, and mobile development agency. I lead a team of 20 middle/expert front/back-end and mobile developers. Our main focus area is E-commerce development, modification and support. Some of our work is available for purchase on Envato markets (please, look up our products on Envato for more information - GoShops, Sundaymart and Foodyman). Our team has middle/expert-level skills and extensive experience in a wide range of technologies, including: My skill set: - JavaScript | ReactJs | React Native | NextJs | NodeJs - Redux | Redux-saga | Redux-persist | Redux-Thunk | Mobx | React-Router, - PHP | Laravel | Yii | Twig | Symphony, Codeigniter - Dart | Flutter | Bloc | Riverpod | Getx | Provider - HTML5 | CSS3 | SASS | Tailwind. - Mocha, Jest, React Testing Library. - Jquery| Bootstrap. - MySQL | MariaDB | PostgreSQL | SqlLite | MongoDB | Prisma. - RESTful API - Firebase | Crashlytics | Google Analytics | Admob | Push notifications - Amazon Web Services, Digital Ocean, Heroku. In addition to rich technical and domain knowledge, my team members are excellent communicators - everyone you work with will speak either English, Russian, or Uzbek. We would love to hear from you and discuss the details of your project!
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    Flutter
    SQL Programming
    NodeJS Framework
    API
    Web Application
    Laravel
    React
    Next.js
    Vue.js
    PHP
    Java
    SQL
    WordPress
    Node.js
    JavaScript
  • $55 hourly
    ⭐⭐⭐⭐⭐ "Surafel is a legend! he is awesome. Worked fast, strong communicator, found solutions, offered suggestions, pixel perfect work. Don't hesitate, the legends are true, hire him and you will rest better knowing he's on your team. The Ronaldo of React Native, the LeBron James of front end, the Tom Brady of Github, look no further." - A satisfied client on Upwork As a top-rated Plus freelancer on Upwork, I bring over 8+ years of rich experience in mobile and web application development, boasting a track record of $100K+ earned and consistent 5-star reviews. My expertise spans across various platforms and languages including React-Native, React, Firebase, NodeJs, HTML/CSS, Java, Swift, Android Studio, Xcode, MySQL, and SQLite. ⭐ Here's what I offer to your project ⭐ ✅ Profound knowledge in a wide array of technologies and frameworks. ✅ Exceptional focus on delivering tailored solutions that resonate with business goals. ✅ A proven history of developing high-performance applications. ✅ Commitment to seamless communication, offering daily updates, and engaging in weekly standups and planning sessions. ✅ A passionate dedication to over-delivering, ensuring every client is astounded by the value I add. ✅ Unwavering support, analysis, and troubleshooting to integrate seamlessly into current environments. ⭐ Why choose me? ⭐ ✅ Unmatched client reviews highlighting my ability to transform visions into reality. ✅ A relentless problem-solving approach, leveraging community wisdom and continuous research. ✅ An unwavering commitment to client satisfaction, responsiveness, and resilience in facing challenges. ✅ Responsiveness: being extremely responsive and keeping all lines of communication readily open with my clients. ✅ Kindness: one of the main aspects of my life that I implement in every facet. Treating everyone with respect, understanding all situations with empathy, and genuinely wanting to improve my client's situations. 🏆 Reviews and feedback from past clients 🏆 The client reviews below (also in my work history section) describe the quality of work and value that you can expect from working with me. "Surafel is fantastic. He takes the time to understand your project, and gets started on thinking about how to make you and your idea successful before he even wins the contract. He has incredible attention to detail and is very autonomous. Needless to say, we are working with him on a much bigger project now!" - Himadri, CheckMath "Surafel is everything that is good about Upwork! I have never worked with a professional like him before and would recommend to anyone. His work was fast and reliable. Did more than I expected him to do and excelled at it. Not only did he meet deadlines, but he also communicated efficiently and suggested the best options for me. More than delighted and will hire again!!! Thank you" - Mario, Tencargo "I really recommend this young developer to consider for your project, you would not be disappointed. He has all rounded knowledge about mobile development. His react native exposure is amazing. He has completed my react native project exactly as per the requirement with great quality and even earlier than the agreed time." Noah Caleb
    vsuc_fltilesrefresh_TrophyIcon Glassfish Developers
    iOS Development
    Laravel
    Swift
    React
    Push Notifications
    Database Development
    Mobile UI Design
    React Native
    Vue.js
    Firebase Cloud Firestore
    HTML5
    JavaScript
    MongoDB
    Java
    CSS
  • $55 hourly
    IT-Specialist with more then 17 years experience in software development. Over last 15 years I'm working on web development using Java and related techs: Spring Boot, Spring Cloud, Docker, Dropwizard, Kafka, Zookeeper, RabbitMQ, AWS, JPA, Hibernate, Maven, HTML, CSS, JavaScript, Node.js, Angular, JBoss, Tomcat, SOAP, JSON. I know how-to design and implement complex system from scratch. I can support / revamp existing (legacy) systems. I like to research new software in terms of possible use. I love documenting things and every my project has comments and javadocs in code and Confluence / Wiki pages with implementation details, howto-s (start new module, add data, Ci/CD), environment descriptions etc. I love tests - 90% of public methods, exposed endpoints covered with unit tests. Performance tests for application and modules (if they are microservices). Team and goal oriented, challenge seeking, work well under pressure. If you look for Quality and Experience - you have come to the right place!
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    Oracle PLSQL
    Amazon Web Services
    Microservice
    Spring Cloud
    Requirements Specification
    Software Architecture & Design
    J2EE
    Database Modeling
    RESTful Architecture
    SQL
    Java
    MongoDB
    Spring Framework
    Spring Security
    MySQL
    Hibernate
  • $75 hourly
    12+ years of developing Android applications, leading teams, and delivering successful products. I provide high-quality mobile, Android TV, Android Auto, and Android Automotive OS apps using the latest tech stack like Jetpack Compose, MVVM, Hilt, Room, and ExoPlayer. Professional skills and technologies: • Fluency in Java and Kotlin • AndroidX/JetPack, Compose, Leanback • MVVM/MVP/MVI • Experience in RESTfull APIs, OAuth • SQLite/Room, Realm • ExoPlayer, optimization and performance tuning, offline playback, caching • Creating media apps for Android Auto and Android Automotive OS • Security/Encryption, biometric • Firebase Auth/Cloud functions/Database/Storage • Troubleshooting performance problems • Knowledge of best practices for developing secure software, mobile application vulnerabilities, and how to prevent them.
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    Reverse Engineering
    Android Room Persistence
    Android Debug Bridge
    SQLite
    Realm Database
    Firebase
    Git
    Google Maps API
    Google Play
    JetPack
    Android
    Android App Development
    Java
    Kotlin
    Android SDK
  • $60 hourly
    I am TOP RATED, a strong Java and PHP developer from the United States. In the past, I worked for the biggest companies such as Oracle, Accenture, First Data, Barclays Bank, etc. I have 20+ years of experience in web development and I highly specialize in - Java (Java EE, Spring, Spring Boot, Spring Annotations, Spring MVC, Spring Security, JMS, Java Struts, Java Servlets, JSP, Hibernate, MyBatis, REST, ActiveMQ). - PHP (Laravel, WordPress) - Javascript (React, Angular, JQuery, Vue.js) - HTML, CSS, Bootstrap, Tailwind CSS - MySQL, Postgres, Oracle, NOSQL, MongoDB. - AWS, WildFly, Apache Tomcat I have built more than 200 systems and I am comfortable working with both existing and new projects. I helped hundreds of clients in their business and I am here to help you as well!
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    Vue.js
    Web Service
    J2EE
    AngularJS
    HTML
    React
    Laravel
    PHP
    SQL
    Microservice
    Java Persistence API
    Spring MVC
    Spring Boot
    Spring Framework
    Java
  • $30 hourly
    *Available for Work* All-in-one problem solver for Mobile, Desktop, and Web software in any language or framework! I provide services related to ✅Desktop Apps, ✅Web Apps (Frontend), ✅Web APIs (Backend), ✅Data Processing,✅ Mobile Apps and much more to tech companies all around the world in the technologies such as ✅C#,✅ Java,✅ Python,✅ ReactJs, ✅React Native, ✅Flutter and ✅NodeJS My Expertise: ✔️ Front-end Development: I excel in Angular, Flutter, and HTML/CSS development. I create interactive and responsive user interfaces that provide an exceptional user experience. ✔️ Back-end Development: I am proficient in ASP.NET Core, ASP.NET MVC, ASP.NET Web Forms, Spring Boot, Java, Python, FastAPI, and ExpressJS. I have experience building robust APIs, handling server-side logic, and integrating with databases. ✔️ Database Management: I have a strong command of SQL and extensive experience working with MySQL, SQL Server, SQL CE, MongoDB, PostgreSQL, Timescale DB, SQLite, Firebase, and AWS DocumentDB. I can design efficient database structures and write optimized queries. ✔️ Desktop Application Development: I specialize in WPF, WinForms, and Electron, SwingUI enabling me to build powerful and intuitive desktop applications that run seamlessly across multiple platforms. ✔️ Mobile App Development: I develop cross-platform mobile apps using Flutter and React Native, enabling you to reach a wider audience and deliver engaging user experiences. ✔️ Database Management: I excel in designing data models, connecting to data sources, importing data, and performing advanced calculations to extract valuable insights for your business. ✔️ Software Consultancy: If you need guidance or expert advice on software-related matters, I am here to provide reliable and valuable consultancy services. ✔️ Migration: If you need to migrate your project of Dot Net from 4 to 5,6,7 or 8, I am here to provide you reliable migration service without any loss to the code quality. I'm dedicated to delivering high-quality products and ensuring client satisfaction. I value open communication and collaboration throughout the project lifecycle. If you have any questions or would like to discuss your project, feel free to message me. I typically respond within an hour or promise to get back to you within 12 hours. Thank you for considering my profile. Let's create amazing software solutions together! Have a nice day, Hussain Murtaza Keywords: C# expert C# developer C# programmer Dotnet expert Dotnet developer Dotnet programmer .NET expert .NET developer .NET programmer Java expert Java developer Java programmer PHP expert PHP developer PHP programmer .NET Core expert .NET Core developer .NET Core programmer NET Framework expert NET Framework developer NET Framework programmer Spring expert Spring developer Spring programmer Dart expert Dart developer Dart programmer Javascript expert Javascript developer Javascript programmer JS expert JS developer JS programmer WEB API expert WEB API developer WEB API programmer MYSQL expert MYSQL developer MYSQL programmer Angular expert Angular developer Angular programmer React expert React developer React programmer React Native expert React Native developer React Native programmer Flutter expert Flutter developer Flutter programmer CrossPlatform expert CrossPlatform developer CrossPlatform programmer Cross Platform Mobile expert Cross Platform Mobile developer Cross Platform Mobile programmer Cross Platform Desktop expert Cross Platform Desktop developer Cross Platform Desktop programmer Desktop expert Desktop developer Desktop programmer Winform expert Winform developer Winform programmer WPF expert WPF developer WPF programmer Window Form expert Window Form developer Window Form programmer Rider Sharing expert Rider Sharing developer Rider Sharing programmer LMS expert LMS developer LMS programmer Wallet expert Wallet developer Wallet programmer POS expert POS developer POS programmer IMS expert IMS developer IMS programmer CRM expert CRM developer CRM programmer Android expert Android developer Android programmer IOS expert IOS developer IOS programmer Python expert Python developer Python programmer Django expert Django developer Django programmer NextJS expert NextJS developer NextJS programmer NestJS expert NestJS developer NestJS programmer FastAPI expert FastAPI developer FastAPI programmer
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    FastAPI
    Nuxt.js
    NestJS
    Python
    SaaS
    Angular
    Java
    React Native
    Desktop Application
    Mobile Web
    Mobile App
    Flutter
    C#
  • $40 hourly
    Greetings! I'm a senior web developer and certified java programmer with 20+ years of experience incorporating user and business requirements into cost-effective, secure and user-friendly solutions. I have a strong background in IT, Manufacturing & Business Process Automation, Neural Networks. I'm currently focused on full-stack software development, building projects from ground up. Technology Summary Java, J2EE, JavaScript, HTML5, Node.js, MongoDB, SQL, Linux, AWS, C++, AngularJS, React, D3.js, XML
    vsuc_fltilesrefresh_TrophyIcon Glassfish Developers
    Back-End Development
    Amazon ECS
    Angular 2
    RESTful API
    Node.js
    React
    Spring Boot
    API
    JavaScript
    Java
    SQL
    C++
    MongoDB
  • $65 hourly
    Seasoned software developer with broad experience and skills: • Web application and server development, from proprietary C++ to J2EE to LAMP. • WordPress plugin; Laravel application • Adoption/integration of thirdparty components into applications. • Single page web applications with Javascript; HTML/CSS; Bootstrap, Vue.js • Web site setup and administration. • Porting C++ code from Unix to Windows. Write clean, robust, and well documented code.
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    Multithreaded Programming
    Amazon ECS
    Laravel
    OAuth
    RESTful API
    LAMP Stack
    API Development
    Web Development
    WordPress
    C++
    Java
    JavaScript
    PHP
  • $18 hourly
    Hii, I am working on high-quality iOS/Android applications for different industries, including medicine, marketing, advertisement, etc as a developer. I have overall 6 years of experience. It's important to me to create supportable and upgradable applications. I prefer to build long-term relations with my customers. When they come back to add support for new mobile devices or new features - I am always glad to see that application continue its life. My Skill Set: ------------------- - Flutter, Dart - Swift, Xcode, iOS SDK - Java, Kotlin, Android Studio - Super Level UI Customization, Suggestion of Best User-Friendly and elegant UI/Graphic design - Google Map Service, Real-time tracking, Geo-location, GPS, Geo-fencing - Web services, REST/SOAP, XML/JSON Domains on which i developed apps ------------------------------------------------- On-Demand Marketplace Utility Social networking/Chat/messaging Mini-games E-commerce Bluetooth/beacons Taxi/booking Fitness/health Coding Strategy: ------------------------- *Well-optimized, clean, robust, and well-commented code with qualified naming conventions. * Multi-Language Support * Localization And Internationalization support * API /Web Service Integration Thanks!
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    RESTful API
    Apple Xcode
    Android App Development
    iOS Development
    Firebase
    Kotlin
    Java
    PHP
    Firebase Realtime Database
    Swift
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