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Freelance Glassfish developers

Name: Glassfish developers
Brand: Upwork
Rating: 4.8 (27630 reviews)

Check out freelance Glassfish developers on Upwork, with the skills you need for your next job.

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$105 hourly
Dawn M.
- 4.7/5
- (738 jobs)
** 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.

Glassfish Developers
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
$50 hourly
Turgay U.
- 5.0/5
- (58 jobs)
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

Glassfish Developers
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
$39 hourly
Olena I.
- 4.9/5
- (78 jobs)
I’m a team leader of the team of java full stack developers capable of solving tasks of any complexity at every stage of the software development life cycle, from analyzing requirements and building architectures for startups to supporting and changing legacy projects. We specialize in developing a backend for mobile (rest/soap) and enterprise web applications or specific tasks that are better implemented by those tools that are supported by the Java language. We also have sufficient expertise and experience to develop a UI in Angular or React. We work with various relational databases (MySql, Postgresql, Oracle) and NoSQL databases (Mongo, Cassandra, Redis). As the primary tool, we use the Spring Framework. However, we have experience working with others (Vert.x, Micronaut, etc.) We monitor the quality of our code using tools for unit testing, static code analysis, and continuous integration/delivery. Also, we continuously review the code for vulnerabilities and performance issues. We develop cloud solutions with automatic deployment both on Amazon AWS or other cloud providers and on the physical servers of the customer.

Glassfish Developers
Architectural Design
Performance Optimization
Enterprise Software
CI/CD
Test-Driven Development
DevOps
Angular
Cloud Computing
Database Management
Microservice
REST API
Spring Framework
Micronaut
PostgreSQL
Java
$50 hourly
Andriy S.
- 5.0/5
- (10 jobs)
Creative back-end developer dedicated to building elegant solutions that meet business demands. Over 15 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, Elasticsearch 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Vue HTML, CSS, Bootstrap Should you need any further information, please do not hesitate to contact me.

Glassfish Developers
Reactive Programming
Docker
Kubernetes
CI/CD
Terraform
Distributed Computing
Node.js
Microservice
Amazon Web Services
Spring Framework
TypeScript
Java
JavaScript
SQL
MongoDB
$40 hourly
Tarik M.
- 5.0/5
- (16 jobs)
Hello, I am Tarik Mujčić, a Full-Stack Software Developer with a strong focus on Java and Angular. Got a challenge ❓ I've got the solution ✅ I specialize in developing, fixing, optimizing, and delivering high-quality software solutions that streamline processes, enhance user experience, and provide reliable results. My goal is to create software that is both robust and user-friendly, effectively meeting your business needs with efficiency and precision. I am committed to delivering solutions on time ⌛, ensuring your project stays on track and achieves success 🎯 Skills and technologies I'm proficient at: ✅ Java/JEE, JavaFX ✅ Spring (MVC, AOP, Data, Security, Reactive...), Spring Boot ✅ Maven, Gradle ✅ JDBC, Hibernate ✅ TypeScript, Angular, HTML, CSS ✅ Database design and implementation ✅ PostgreSQL, MySQL, MSSQL, OracleSQL ✅ CI/CD tools (Jenkins, Nexus, GitHub actions, GitLab pipelines) ✅ Unit & Integration testing (JUnit, Mockito, Jasmine,...) ✅ REST APIs Feel free to reach out if you have any questions or would like to discuss how I can help with your project. I look forward to collaborating with you!

Glassfish Developers
CSS
HTML
Java
API Development
Angular
C
Database Management System
Hibernate
Desktop Application
RESTful API
Spring Boot
Database
RESTful Architecture
MySQL
PostgreSQL
$20 hourly
Atendra S.
- 4.9/5
- (53 jobs)
🌟 Top-Rated Upwork Professional 🧑🏻‍💻 10+ years of experience 📱 Android | Kotlin | Java | Jetpack Compose | Kotlin-Multiplatform| Flutter | WearOS | AndroidTV | 🚀 AI | ChatGPT | 💻 Firebase | VoIP | Linphone With over 10 years of extensive experience as an Android Developer, I specialize in native Android application programming with a strong focus on SCRUM/Agile workflow.    I have a proven track record of delivering high-quality mobile applications in various domains, including:  * Airline Domain * Banking Domain * Cargo Management Domain * Logistics Domain * Financial Domain * Social Media/Dating Domain with Video/Audio Chats * Location Tracking Domain  My expertise in mobile development includes:  * Programming Languages: Java, Kotlin * Architectural Patterns: MVVM, MVP, MVC * Design Patterns, Custom Controls, and REST API integration * Material Design, Mobile UI/UX, and Firebase integration (AdMob, Analytics, A/B testing, etc.) * Jetpack Compose, Jetpack Navigation * Firebase Realtime Database and Storage * Android SDK, NDK, Open Source, Support Libraries * Reactive Programming with rxJava and rxAndroid * Dependency Injection using Dagger, Kodein, and Hilt * Databases: SQLite, Room, Realm, Page * Network Libraries: Retrofit, OkHttp, Volley, ktor * Image Loading Libraries: Picasso, Glide * Crash Reporting and Analytics Tools: Crashlytics, Firebase, Fabric, LeakCanary, Timber * Other Libraries: Gson, AutoValue, JodaTime, AndroidJob, Google Services * Sockets/SignalR * Kiosk Mode * SonarQube code coverage * Kotlin-Multiplatform (One POC)  * Wear OS & Smartwatch development * Mqtt In addition, I am an expert in the Linphone SDK, a powerful tool for building voice and video communication applications. I have in-depth knowledge of integrating and customising the Linphone SDK to create high-quality, real-time voice and video chat functionalities within Android applications. I am experienced in implementing Linphone's advanced features, including call management, audio/video codecs, encryption, push notifications, and more. Whether you need to develop a VoIP application from scratch or enhance an existing app with Linphone capabilities, I can provide the expertise you require.  I have integrated various features and technologies into Android applications, including:  * Beacons integration for proximity-based interactions * Calendar API integration for managing events and schedules * QR Code integration for scanning and processing QR codes * OCR (Optical Character Recognition) integration for text recognition and extraction  For multimedia capabilities, I have integrated Video Chat using WebRTC, ZegoClould, Twilio, and Agora, as well as Audio Streaming. I am familiar with ExoPlayer for HLS Video Streaming (HTTP Video Streaming), RTSP Video Streaming, and DASH Video Streaming.  Other skills and features I offer include Custom Calendar development, Media Gallery implementation, Background Download and Upload functionality, Tiff file format handling in Android, Live Streaming using Agora and ZegoCloud SDK, Deep Linking, LeakCanary for memory leak detection, and code annotations to improve the linting process.  Experienced Kotlin Multiplatform Developer with a track record of delivering efficient cross-platform solutions. Proficient in Kotlin Multiplatform Mobile (KMM) and skilled in creating high-performance apps for Android, iOS, web, and more. Experienced Jetpack Compose Developer, proficient in creating dynamic, interactive, and modern Android UIs. Skilled in leveraging Jetpack Compose's power to build visually stunning and responsive applications. Over the years, I have developed many different types of iPhone and Android apps. These include: - Food delivery apps - On-demand apps - Home services apps - Handy man apps - Salon apps - Beauty apps - Taxi apps - Ride apps - E-commerce apps - Dating apps - Health and fitness apps - Travel apps - Video streaming apps - Fintech apps - Shopping apps - Telemedicine apps - Finance apps - Real estate apps - Social media apps - Chat apps - Business apps - Messaging apps - Online courses apps - Online education learning apps - Tutor apps - Hotel booking apps - Online grocery order apps - Telecommunication apps - VoIP apps - SIP Apps - Apps using the Twilio API I am fluent in English and passionate about Android development. Please feel free to reach out to me with any Android-related questions or projects. I would be pleased to help you bring your ideas to life.

Glassfish Developers
Mobile Device Management Software
AOSP
Java
Smartphone
iOS Development
User Authentication
Android
JetPack
Mobile App Development
Wear OS
In-App Purchases
VoIP
Firebase
Android App Development
Kotlin
$52 hourly
Juan D.
- 5.0/5
- (6 jobs)
I am a tech enthusiast and Software Engineer with +7 years of experience in several fields. - Front-end experience: Flutter - Back-end experience: Firebase, Java, Node.js, C#, Ruby on Rails I am the co-founder of a Flutter Agency (SmartUp Software) in which we provide custom software development and staff augmentation services, having developed and deployed 10+ apps/webs. I developed an award-winning social project called "Berrinche" whose main purpose is to help parents and therapists of those with ASD to discover the causes of disruptive conduct and how to treat them.

Glassfish Developers
pandas
Microsoft Power BI
Python
Dart
In-App Search
Node.js
Ruby on Rails
CSS
HTML
Java
C#
Android
Angular
JavaScript
Flutter
$100 hourly
Yannick G.
- 5.0/5
- (6 jobs)
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.

Glassfish Developers
PostgreSQL Programming
Linux System Administration
Apache ActiveMQ
Amazon Elastic Beanstalk
AWS Lambda
Hibernate
Java
Oracle Database
Docker
RESTful API
$15 hourly
M Farhan A.
- 5.0/5
- (20 jobs)
#AndroidDeveloper I graduated from GC University with a degree in Computer Science in 2019 and have been working professionally as a Android developer since 2018. I developed more than 50 apps and also worked as a team lead in Idealogic software house.

Glassfish Developers
Android SDK
Laravel
Android
Kotlin
Java
Android App Development
Node.js
$50 hourly
Edwin M.
- 5.0/5
- (30 jobs)
I'm a full stack software developer with experience in Java and Android projects. I focus on service and delivering the best experience to my clients, while providing quality software on a timely fashion. I have experience with various technologies to help fulfill any kind of job. I'm also open to having a chat with my customers, if they so desire, so we can arrange any details about the job. I also have experience with Cyclos Banking System Software, providing consultant services to small-medium banks. I've done several integrations with 3rd parties software with it, also developed plenty of aditional feature for it too, like bank statements and import of payments. I have experience on the following languages and technologies: -Java: Everything enterprise, Servlets, JSF, Primefaces and JPA. -JavaScript: pure Script, NodeJS and AngularJS. -PostgreSQL, SQLServer, SQLLite I also have experience providing products and solutions for financial institutions. My biggest desire is to serve my customers as if I was the person requesting the product. I always strive to deliver the best software since I wouldn't settle for less.

Glassfish Developers
Email Campaign Setup
J2EE
Android App Development
Microsoft SQL Server Programming
API Development
MySQL Programming
Java Servlet API
JavaScript
Java
$75 hourly
Tapiwa M.
- 4.2/5
- (30 jobs)
I'm an Android developer and consultant over 7 years experience. I have solid expertise in the bolts and nuts of modern android development and can competently handle complex projects. I have comprehensive experience in building apps from scratch, taking over existing unfinished projects and poorly built projects that are in need of swift bug fixing, performance optimizations, new featues, code refactoring and cleanup.

Glassfish Developers
Android SDK
Android App Development
Android
Clean Architecture
Mobile App Development
Git
Google Play
Unit Testing
Firebase
Xamarin
Java
Kotlin
$30 hourly
Dmitriy S.
- 5.0/5
- (2 jobs)
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, Bluetooth 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

Glassfish Developers
Firebase
Coroutine
Retrofit
Android Studio
Java
SQLite
Kotlin
Android App Development
Mobile UI Design
$45 hourly
Resa R.
- 4.4/5
- (30 jobs)
I am a Java Web Developer, working as freelancer, mainly in Upwork. I am very passionate with Java and JVM technologies. My experience mostly in developing Software As A Service (SaaS) platform, business computing and information system area, using Bootstrap, Angular JS or JSF as UI Components or web framework, Spring Core, Spring MVC or JBoss Seam as Restful API endpoint and or Integration framework, and Hibernate as favorite Java Persistence API (JPA) implementation wrapped by Spring Data component. If my clients requires no casual application or web server, I like to use Spring Boot for simpler development and deployment of the application. I am also interested in database design and software design. I believe that great software not only mediocre work of typing, but also comes from thoughtful process. I believe in TDD, and also believe that tests code must be written, organized as good as the source code it self and is integral part of the source code. I am a quick learner, and In my spare-time, I am writing some personal open source project and small proof-of-concept about java-related stuff in my GitHub public repository. My primary machine is linux desktop with 1TB NVMe SSD and 64GB or RAM. I have macbook pro 15 for testing purpose and to allow me mobile occasionally, if needed. Communication is important in remote work, and for this purpose I have 2 link dedicated internet connections to my workspace. If you need my detailed skill abilities, below is what I have experienced in: - Software Design, Database Design, and microservices/Micro-services/micro services architecture. - JPA 1.0, JPA 2.0, with Hibernate. - Bean Validation Specification with Hibernate Validator. - Dependency Injection with Java DI (JSR-330), Java Context and Dependency Injection for Java EE Platform (JSR-299), and Spring Core as most popular (but non-standard) Java Dependency Injection Framework. - Java Web Framework with Spring MVC and JSP, or Java Server Faces (JSF) with Facelet and Primefaces. - Spring Boot, Spring Data stack. - Generated / scaffolding web application using JHipster. - Java Web / Application server with Tomcat, Wildfly, or Websphere AS. - Logging with SLF4J as a wrapper to Log4J or Logback. - JUnit or Test NG as testing framework. - Ant, Maven or Gradle as build and dependency management tool. - HTML 5, CSS 3, JavaScript, JQuery, Twitter Bootstrap, transparency.js, and angular / angular.js - Third Party API such as Xero API, Open ERP Java API, Braintree Payment API, Stripe Payment API, and Social APIs. - Linux, Mac or Windows. - MySQL, PostgreSQL, Oracle, or Microsoft SQL Server for RDBMS. - Couchbase or Mongo DB for No-SQL solution. - Elasticsearch (ELK) stack or pentaho for data integration, advanced search, reporting and data analysis solution. Thanks, Resa

Glassfish Developers
Spring Framework
Angular
Spring Data
DigitalOcean
Spring Boot
Hibernate
JHipster
Java Persistence API
Amazon Web Services
Web Service
SQL
JavaScript
Java
$75 hourly
Brian L.
- 5.0/5
- (50 jobs)
I am a highly experienced Java developer with 20 years of industry experience and I have been specializing in implementations using Adobe Experience Manager (AEM) for the past 9 years. I've built solutions in AEM 6.1 - 6.5 and AEMaaCS. In 2018, I was one of the winners of the Adobe Immerse 2018 Community Code Contest, as well as a presenter at the Adobe Immerse virtual conference, leading a discussion on Creating Custom ContextHub Stores and UI Modules in AEM. I have also contributed to ACS AEM Commons (the main AEM open source project) by helping to build Shared Component Properties. I also have solid experience working with various JavaScript frameworks like jQuery and VueJS and the drive to pickup new ones when necessary. I am also familiar with Less, SCSS, and CSS and the concepts of building responsive sites using Bootstrap and AEM Grid. I strive to write clear and maintainable code, and fully document my code to ensure future developers have a clear understanding of all methods and classes. Also, I will gladly provide any additional documentation or training materials requested, which will be well structured and well written. I am a strong problem solver and skilled at exploring and debugging complex problems to get software applications back on track when strange errors or edge case scenarios arise.

Glassfish Developers
NodeJS Framework
Adobe Experience Manager
Vue.js
Spring Framework
CSS
JavaScript
Jakarta Server Pages
HTML
Java Servlet API
jQuery
Java
$15 hourly
Amit K.
- 5.0/5
- (9 jobs)
Hi, If you are looking for a 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐜𝐫𝐞𝐚𝐭𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 App Developer, you have come to the right place - I will eagerly become your longtime partner. I am an expert 🆃🅾🅿- 🆁🅰🆃🅴🅳🏅 App Developer (Android, iOS) with 7+ years of experience, 𝐈 𝐡𝐚𝐯𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐝, 𝐭𝐞𝐬𝐭𝐞𝐝, 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲𝐞𝐝 𝐬𝐞𝐯𝐞𝐫𝐚𝐥 𝐚𝐩𝐩𝐬 𝐨𝐧 𝐛𝐨𝐭𝐡 𝐭𝐡𝐞 𝐚𝐩𝐩 𝐬𝐭𝐨𝐫𝐞 𝐚𝐧𝐝 𝐩𝐥𝐚𝐲 𝐬𝐭𝐨𝐫𝐞.I prefer long-term work and am In love with coding and am proud of my creations! 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!

Glassfish Developers
RESTful API
Apple Xcode
Android App Development
iOS Development
Firebase
Kotlin
Java
PHP
Firebase Realtime Database
Swift
$95 hourly
Peter K.
- 5.0/5
- (10 jobs)
Full Stack Software Developer and Project Manager with 10 years of experience. Working on different migration projects of core banking and insurance systems. Hands on mentality with a focus on code quality, unit testing, design and customer satisfaction.

Glassfish Developers
Oracle
Angular
Drools
OpenShift
JavaScript
Ionic Framework
PostgreSQL
Vaadin
Jira
Scrum
SQL
Spring Boot
Java
TypeScript
Jenkins
$50 hourly
Igor B.
- 5.0/5
- (28 jobs)
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).

Glassfish Developers
HTML5
CSS 3
C++
Java
MySQL
React
Bot Development
Automation
Data Scraping
Python
PHP
Data Extraction
Web Crawling
JavaScript
Selenium
$25 hourly
Roljhon T.
- 5.0/5
- (26 jobs)
I have 12 years experience in software development. My technology stack are as follows: - VueJS/Next.js/React/React Native/Astro - TypeScript - NodeJS - PHP - Custom - Laravel - NestJS - TailwindCSS - Bootstrap - JQuery - Docker - CI/CD - Github Actions - Serverless - AWS Services - 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.

Glassfish Developers
Docker Compose
AWS CloudFormation
Amazon ECS
AWS Lambda
Next.js
React
CircleCI
PHP
Vue.js
Laravel
Amazon Web Services
Java
Docker
JavaScript
Node.js
$70 hourly
Thiago H.
- 4.9/5
- (10 jobs)
💼 12+ years of experience | 🏙 Built solutions for JPMorgan Chase, Cisco, Avaya, Keyo, JourneyID and more | 🏆 Lead teams that achieved a Series A investment round 🌐 Lead multiple talented software engineering teams with people from different cultures and places, like the United States, Canada, Brazil, Ukraine, India, Pakistan, and more. What to expect from me: ✔︎ Reliability on meeting deadlines, producing high-quality code and proactively addressing issues; ✔︎ Effective communication for clear expectation alignments and progress updates; ✔︎ Use of the most recent design patterns and code conventions; ✔︎ Delivery of a product that respects the highest standards of usability, performance and appearance; ✔︎ Great cost-benefit by delivering faster and higher quality products than the average; ✔︎ Flexible availability to meet the project needs. Android, Kotlin, Jetpack Compose, Kotlin Multiplatform (Android, iOS, Windows, MacOS, Linux, Embedded Linux, Web), Java, Firebase, Android Studio, Android SDK, Sentry, Dependency Injection, Figma, AirDroid, Esper.

Glassfish Developers
Smartphone
Room
SQLite
RESTful Architecture
Desktop Application
iOS
Firebase Cloud Firestore
Material Design
Firebase
Java
Google Play
Engineering Management
Kotlin
Android SDK
Android
$25 hourly
Paweł C.
- 5.0/5
- (35 jobs)
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.

Glassfish Developers
Proxmox VE
System Administration
Apache Maven
Gradle
Swing
DNS
Network Engineering
Redis
SQL
Plugin Development
JetBrains IntelliJ IDEA
Minecraft
phpMyAdmin
Java
Linux
$23 hourly
Oleksii K.
- 4.9/5
- (57 jobs)
Greetings! I am a highly experienced and top-rated mobile developer from Lviv with over 15000 working hours on Upwork. My expertise lies in developing native iOS and Android apps, as well as cross-platform apps using React Native and Flutter. Over the years, I have worked on a wide range of projects, from simple utility apps to complex enterprise-level solutions. My skills include: • Strong knowledge of Swift, SwiftUI, Objective-C, Java, Kotlin, React Native, and Flutter • Experience working with various APIs and SDKs, including Firebase, Google Maps, and AWS • Proficiency in using version control systems such as Git and SVN • Ability to design scalable, maintainable, and reusable code • Strong debugging and troubleshooting skills • Familiarity with Agile methodologies In addition to my technical skills, I am also an excellent communicator and team player. I have worked with clients from various industries, and I understand the importance of clear communication, timely delivery, and excellent customer service. If you're looking for a reliable and skilled mobile developer, I am here to help. Feel free to get in touch to discuss your project requirements in detail. Thank you for your time, and I look forward to working with you! Best regards, Oleksii .

Glassfish Developers
SwiftUI
iOS SDK
React Native
Flutter
In-App Purchases
Java
Objective-C
Android App Development
iOS Development
Kotlin
Swift
Smartphone
Mobile App Development
Android
iOS
$50 hourly
Abhay G.
- 5.0/5
- (1 job)
Over 2 decades of rich experience in the software industry where almost a decade was spent working in the United States for organizations like Circuitcity, Walmart, Disney etc. In India, he has leveraged his expertise in various capacities at Unisys, TCS, Infogain and Ericsson. Having witnessed and being a part of the dot-com boom (and bust), entrepreneurship bug found him pretty early in his career where he developed a product for Insurance Surveyors. This product boasted of over 1000 installations across the country before it was bought by a new entrant in the Indian Insurance sector. Since then, Abhay has shuttled between India and US working in various capacities such as Lead Architect, Program Manager, Account Manager with his last stint as leading the Program Management Office at Infogain Corp. Abhay has strong expertise in architecting very large scale ecommerce sites like Circuitcity and Walmart with annual revenue of over a billion dollars. A keen planner, strategist and implementer with demonstrated ability to translate new ideas into solutions and to manage key account relationships and large scale projects. Specialties: Comprehensive understanding of project management life cycle, Full-stack development, SOA, Groovy, Grails, Java, Javascript, Vue.js, NoSQL, RDBS, Mysql, MariaDB, Design Patterns, AWS, DevOps, Git.

Glassfish Developers
Design Analysis
Design-to-Code
JavaFX
Architecture
DevOps
JavaScript
Vue.js
Java
Grails
Apache Groovy
$75 hourly
Ian Val D.
- 4.9/5
- (161 jobs)
Summary of Qualifications: • Expert in MS PowerBI, Netsuite Orcale and Fishbowl Inventory Report Customization • 20 years of accumulated talent and professional experience in Data Analysis, NodeJS, PHP, Java, MySQL, Oracle, MS SQL, Firebird and Jasper iReport • Excellent in creating stored procedures, functions, view and triggers • Skilled in hardware operating systems and network procedures • Exceptional history with content management relational databases systems and web development and web services • Extensive knowledge of CSS/HTML jQuery, Joomla, WordPress, etc. • Strong analytical skills and attention to detail. • Reliable, self-motivated and with a strong sense of integrity • Perform effectively and efficiently even under pressure • Relate well with others and able to build and maintain relationship • Creative mindset, and ability to make complex decisions and work on fast-paced, team-oriented environment while handling multiple priorities. Experience: Global Agile Development Inc, Florida USA, MySQL Expert Database Administrator Davao del Norte State College, Philippines • Currently working as IT Instructor and teach the following subject areas: o Java and PHP programming o Database • Developed the following application program o Enrolment System o Student Information System

Glassfish Developers
Domo
Looker Studio
Zoho Analytics
MySQL Programming
Oracle PLSQL
Ionic Framework
Microsoft Power BI
JavaScript
MySQL
Java
JasperReports
PHP
CodeIgniter
Laravel
Firebird
$55 hourly
Oleksandr I.
- 5.0/5
- (54 jobs)
Hi, I’m an Android developer with over 10 years of experience in building native applications. I work with a modern tech stack, including Android Jetpack, Kotlin Coroutines, Jetpack Compose, MVVM, and Dependency Injection (DI). I also have experience with cross-platform development using Flutter/Dart and Kotlin Multiplatform. Key Expertise: • Audio/Video Calls: WebRTC integration for real-time communication. • In-App Purchases and Google Play Billing. • Machine Learning: On-device ML with TensorFlow Lite, ML Kit. • Geolocation and Firebase Services (e.g., FCM, Crashlytics, Analytics). • Media Processing: Photo, video, and audio. • Platform Migration: Converting iOS/web apps to Android. I’m skilled at integrating third-party APIs, working with CI/CD pipelines, and implementing modular architectures for scalable and testable code. I’d love to help bring your ideas to life, from early-stage concepts to full-scale app solutions. Feel free to reach out! Thanks, Oleksandr Ilchuk

Glassfish Developers
Android SDK
Mobile App Development
Android App Development
Firebase
Smartphone
Android
Flutter
Java
Kotlin
$30 hourly
Mary Grace A.
- 5.0/5
- (15 jobs)
I am a Software Engineer for 13 years expert in Coldfusion PHP and Wordpress. My skills includes the following - Programing ( ColdFusion, PHP, Java ) - Scripting (Javascript, jQuery, Mootols, Prototype, ReactJS, VueJS) - Database (MySQL, MsSQL) - CMS (Wordpress, Joomla, Drupal, Shopify) - CSS (Bootstrap) - Integrations (Single Sign On, Payment - Paypal, AffiniPay, BluePay, Authorize.net, eWay)

Glassfish Developers
Adobe ColdFusion
Payment Gateway Integration
Web Development
MySQL
React
SQL
Vue.js
Joomla
jQuery
PHP
Java
JavaScript
AJAX
WordPress
$27 hourly
Roman B.
- 5.0/5
- (49 jobs)
Hello there! At Define Solutions, we aim to convert your concept into a robust and thriving mobile application designed specifically for the iOS platform. ✅ With a track record of successfully developing over 100 mobile apps, we have delighted more than 50 satisfied clients and delivered over 3000 screens. 🔥 Noteworthy is our remarkable achievement of a 320% increase in app download conversion on the App Store! 🔥 Drawing on over 9 years of experience in iOS and Android programming, our primary focus has been crafting mobile apps across various sectors, including Social, Healthcare, E-commerce, Logistics, and Music. Here's the roadmap for bringing your project to life: 🟣 Analyzing specifications 🟣 Designing the user interface (UI) 🟣 Implementing the business logic 🟣 Comprehensive testing 🟣 App launch Following this process ensures you receive a mobile app that can help your business attract more clients. 🚀 Does this resonate with your vision? Feel free to get in touch, and let's delve into the specifics! 🚀 Keywords to find me: Swift programming, iOS development, Mobile app development, Xcode, UIKit, SwiftUI, Cocoa Touch, Interface Builder, Storyboards, Auto Layout, Core Data, Codable, Networking, RESTful APIs, JSON parsing, Model-View-Controller (MVC), Model-View-ViewModel (MVVM), Delegate pattern, Protocols, GCD (Grand Central Dispatch), Multithreading, Asynchronous programming, Notifications, Localization, Push notifications, In-App purchases, App Store submission, User authentication, OAuth, Firebase, CloudKit, MapKit, Core Location, Augmented Reality (ARKit), Core Animation, Gesture recognizers, Camera integration, Audio playback, Video playback, Custom controls, Custom animations, Unit testing, UI testing, Code versioning (Git), Continuous Integration (CI/CD), Dependency management (CocoaPods, Carthage, Swift Package Manager), Design patterns, SOLID principles, Code refactoring, Accessibility, Performance optimization, Memory management, Debugging, Profiling, Analytics integration, Crash reporting, User feedback, A/B testing, Design guidelines (Human Interface Guidelines), App security, SSL/TLS, Keychain, App permissions, Mobile analytics, App monitoring, App updates, App extensions, Siri integration, WidgetKit, Dark mode, Custom fonts, Theming, Offline mode, Adaptive layout, Reactive programming, Combine framework, Codable, Authentication tokens, Code signing, App configurations, Inclusive design, Design thinking, Responsive design, Dynamic type, PushKit, HealthKit, HomeKit, Vision framework, Natural Language Processing (NLP), Machine Learning (Core ML), Face ID, Touch ID, Augmented Reality (AR), Location-based services, iBeacon, Augmented Reality (AR), 3D Touch, Haptic feedback, SiriKit, iPad app development, Car Play

Glassfish Developers
GPS
App Development
AVKit
Objective-C
Swift
MapKit
UIKit
Mobile App Development
Firebase
In-App Advertising
Push Notifications
User Authentication
In-App Purchases
iOS Development
$40 hourly
Prince C.
- 4.9/5
- (23 jobs)
With 14 years of experience in software engineering, I have honed my expertise in developing robust, scalable applications, initially focusing on Java, and more recently embracing Go as my primary programming language. I also have significant experience with C and NodeJS, allowing me to tackle complex backend challenges with ease. My passion for Go stems from its simplicity, efficiency, and the delightful developer experience it offers. Throughout my career, I have worked with a diverse range of technologies, which has allowed me to adapt to various project requirements seamlessly. I am particularly proficient in using Postgres, but I am also experienced with a wide array of relational and NoSQL databases. I have had the privilege of contributing to both large corporations and innovative startups, where I've often written the very first line of code, transforming visionary ideas into functional software solutions. My extensive background in both structured environments and fast-paced startups equips me to handle projects of any scale with agility and precision. Whether you need a seasoned developer to build from scratch or to enhance existing systems, I am committed to delivering high-quality, efficient solutions that align with your goals. Thank you for considering my profile. I look forward to the opportunity to collaborate and bring your ideas to life.

Glassfish Developers
Spring Boot
Firebase
TypeScript
Angular
Spring Framework
React
Java
Firebase Cloud Firestore
Python
JavaScript
MySQL
Oracle Database
Microsoft SQL Server
PostgreSQL
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Last updated: May 14, 2025

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