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Hire the best Java Developers in Cluj-Napoca, RO

Check out Java Developers in Cluj-Napoca, RO with the skills you need for your next job.
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Clients rate Java developers
Rating is 4.9 out of 5.
4.9/5
based on 184 client reviews
  • $70 hourly

    • 4.8/5
    • (5 jobs)
    Anghel is a passionate full-stack developer who has developed enterprise applications in the fintech, automotive, and gambling industries. His main skill set is centered around Java and Spring on the back end and React on the front end. With over 7+ years of experience covering different sectors and projects, Anghel will make clients' requirements come true by delivering clean, scalable, and high-quality code. Key technologies: 🛠 Backend: Java, NodeJs, Kotlin 🛠 Frontend: ReactJS, Redux, Typescript 🛠 Cloud: AWS, Docker, Kubernetes 🛠Cloud related technologies: 🛠 Databases: MySQL, PostgreSQL, Cassandra, Couchbase, Redis 🛠 Kafka
    vsuc_fltilesrefresh_TrophyIcon Java
    Kotlin
    Apache Kafka
    Couchbase Server
    AWS Lambda
    Spring Framework
    Docker
    TypeScript
    Apache Cassandra
    PostgreSQL
    Spring Boot
    Kubernetes
    Node.js
    React
  • $23 hourly

    • 4.9/5
    • (117 jobs)
    I am a web scraping / data mining expert with close to 10 years of experience. I write reliable, efficient, bug-free and easy to use scrapers for any type of sites. Besides delivering the working scraper, I can extract required data myself and send it in the format the client prefers or insert it into a database. I was the lead developer for many companies around the world and made hundreds of scripts and scrapings. I work in different languages: English, French, Spanish, Deutch, Italian. I am specialized in PHP, JavaScript, HTML/CSS, Python, Scrapy, Ruby, also I'm expert in MS Office features. I've been doing sites from colege and have alot experience in setting up all types of sites. I can and will make you a shopping site or any other type of site! Will be no problem. I can also help you with choosing domain name or host for it. I'm available also at: http :// earn.com/andreic Starting 2007, I realized that data is and will be the future in the world - so I start with scraping and crawling sites for any data my clients needed. Now I can say: I'm verry good on this field, there is no site that can't be scraped or crawled. My prices are not big, I think that the coustomer has to see what I can deliver and after that he will find out that my prices are really normal and ok. Some scraping/crawling jobs done: Trulia Tripadvisor cruceros-premium Regional google sites Bing
    vsuc_fltilesrefresh_TrophyIcon Java
    Spring Framework
    JDBC
    Hibernate
    Data Extraction
    PHP
    HTML5
    JavaScript
    CSS
    Database Design
    Lead Generation
    Data Mining
    Data Scraping
    Python
  • $25 hourly

    • 5.0/5
    • (6 jobs)
    I'm a passionate and independent QA Engineer currently searching for a challenge. I have ~10 years of experience in complete software testing activities such as designing, writing, testing, and documenting software test cases and automated scripts in different programming languages. QA Engineer - ITIVITI - 2016 present Integration testing for b2b electronic trading platform. Created a framework in Java to ensure that the communication between our products and stock exchanges was done correctly. Ensure proper mapping between ITIVITI's trading protocol and other protocols known by exchanges (FIX protocol, SBE, xml / rest / binary based protocols). Tests were ran with Groovy + Spock. Tech stack: Java, Groovy, Gradle, Spock, Git, Gerrit, Linux. QA Engineer - Burda - 2021-2022 Created a data-driven automated testing framework for a e-commerce site using Selenium + TestNG and Java. Designed framework skeleton, gathered test data, integrated the framework with Browserstack and Jenkins for mobile and multiple browser run. Created ~ 500 functional tests. QA Engineer - Bosch - 2015-2016 Testing a web based application for photovoltaic solar energy management. Automating user scenarios for web application using Selenium WebDriver with Java. API testing using REST Assured .Analyzing business requirements, design tests, implement tests, run automated tests. Analyze test results and create reports. Tech stack: Maven, pgAdmin, Jenkins, GIT, TestRail, Allure, Java, Selenium QA Engineer - Gameloft - 2012-2015 Frontend testing iOS games.Black-box testing games developed for iOS platform. Submitting bugs or errors in the internal database. Creating test plans, reviewing documentation, analyzing specifications.
    vsuc_fltilesrefresh_TrophyIcon Java
    Automated Testing
    Web Testing
    User Acceptance Testing
    Apache Groovy
    Regression Testing
    Software QA
    API Testing
    Selenium WebDriver
    Cypress
  • $56 hourly

    • 5.0/5
    • (1 job)
    I’m an Android Engineer with 4+ years of experience building innovative, high-performance apps. I specialize in integrating complex native Android APIs like Bluetooth, WiFi, and camera functionalities, delivering smooth and reliable experiences for end-users. I collaborate closely with businesses to understand requirements and deliver tailored, high-quality solutions. Send me a message to start innovating your business' apps now!
    vsuc_fltilesrefresh_TrophyIcon Java
    Smartphone
    Android App Development
    Core Bluetooth
    Camera
    Mobile App
    Android App
    WiFi
    Bluetooth Beacon
    Bluetooth LE
    Bluetooth
    Clean Architecture
    Kotlin
    Android SDK
    Android
  • $54 hourly

    • 5.0/5
    • (3 jobs)
    I'm a Java back-end developer with 15 years of experience of working on multiple enterprise projects in different domains ranging from Financial to Education.
    vsuc_fltilesrefresh_TrophyIcon Java
    Hibernate
    Review
    Unit Testing
    Software Testing
  • $49 hourly

    • 5.0/5
    • (14 jobs)
    Professional proficiency (Tech Lead & Full-Stack Engineer) and technologies: • 📱 Android (Kotlin, Java); • 🔁 Cross Platform (React Native); • 🖥️ Back-End (Java & Kotlin Spring Boot, Python Flask); • 💻 Front-End (React class & functional, TypeScript, JavaScript, Tailwind CSS); • 🤖 Artificial Intelligence (Python); • 🎮 2D Games (C# in Unity). • OOP (Java Swing) | SQL & NoSQL Databases (MySQL, PostgreSQL, MongoDB, Firestore) | CI/CD (GitHub Actions, Jenkins, Firebase, Heroku) | Linux and POSIX (C) | Fundamental Algorithms and Data Structures (C) | Web Automation & Scraping (Selenium) | C++, Docker, Kubernetes, Hibernate, Kafka, ZooKeeper, Tomcat, Jetty, RabbitMQ, Swagger, Software Testing, Agile, and more.
    vsuc_fltilesrefresh_TrophyIcon Java
    Front-End Development
    Back-End Development
    Flask
    Selenium
    Spring Boot
    Android
    React Native
    C#
    TypeScript
    Mobile App Development
    Unity
    JavaScript
    Kotlin
    React
  • $35 hourly

    • 5.0/5
    • (4 jobs)
    Previously I was working at Garmin International as an Senior Android Software Engineer. Currently I'm the owner and team leader of the company ExarLabs based in Cluj Napoca Romania. I'm experienced in Native Android development, Google Cloud Platform, Firebase, BLE, ANT+ and many more technologies. I particularly interested to work with new technologies and on challenging new solutions. Edication: - Master studies in Belgium, Vrij Universiteit Brussels on the Web and Information Systems department. - Bachelor studies in Cluj Napoca, Technical University of Cluj, Computer Science departament.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Cloud Platform
    Scrum
    Core Bluetooth
    Android App Development
    Android
    JUnit
    AngularJS
    Ionic Framework
    Firebase
  • $45 hourly

    • 5.0/5
    • (2 jobs)
    With years of experience and the ability to quickly learn and adapt and of course with my enthusiasm I'm looking forward to cooperating with you. Nowadays I am doing web Development but I'm also experienced in iOS and Android Development both native and React Native or Flutter.
    vsuc_fltilesrefresh_TrophyIcon Java
    Swift
    HTML
    Node.js
    PHP
    JavaScript
    Spring Boot
    iOS
    Laravel
    React
    Next.js
    Vue.js
    CSS
    Flutter
    React Native
  • $55 hourly

    • 5.0/5
    • (12 jobs)
    I am a Java developer, with experience in enterprise applications. I am very flexible, I have worked with the Java EE stack and also Spring. I have experience with RDBMS (Mysql, PostgreSQL) and NoSql (Couchbase, MongoDB, DynamoDB). Able to offer complete and automated solutions using: Ansible, Chef, Gitlab-CI, Jenknis, AWS, Docker.
    vsuc_fltilesrefresh_TrophyIcon Java
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    🚀 10 years of vibrant experience in web development across a spectrum of projects and businesses. 🎯 Result-oriented professional with a track record spanning small companies to corporations, dedicated to fulfilling client needs. 💡 Skilled in multiple technology stacks such as: React Redux JavaScript TypeScript Java Spring MySQL And more! 🏗️ Strong know-how encompassing involvement in projects from: Early design stages Architecture development Technology selection Implementation Testing Maintenance 🌟 Client-focused approach, understanding their struggles and tailoring solutions to help them succeed. 🌟 I put the client first, and see our collaboration as a partnership 🌐 Passionate advocate for digitalization, transforming challenges into success stories.
    vsuc_fltilesrefresh_TrophyIcon Java
    Flutter
    Babel
    HTML
    JavaScript
    HTML5
    CSS 3
    CSS
    React
    npm
    webpack
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    I conducted penetration tests and implemented vulnerability assessments to secure a position and be a part of progressive organization that gives scope to enhance my knowledge and skills, which can be used for the organizational growth and personal growth and contribute to the organization success.
    vsuc_fltilesrefresh_TrophyIcon Java
    Security Analysis
    Pascal
    Oracle
    Spring Boot
    JavaScript
    C
  • $10 hourly

    • 5.0/5
    • (3 jobs)
    I'm a student with great interest in web and desktop applications developing with experience from personal and university projects. I'm experienced with Java, C/C++, MySQL, PostgreSQL, HTML, CSS and JavaScript Don't forget to keep in touch because communication makes the work great!
    vsuc_fltilesrefresh_TrophyIcon Java
    PostgreSQL
    SQL
    C
    Firebase
    Google Cloud Platform Administration
    MySQL
    Spring Framework
    C++
    React
    HTML
    JavaScript
    CSS
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I'm a passionate Senior Java Developer with multiple programming languages experience. I'm looking for challenging projects that require smart solutions and a problem solving thinking.
    vsuc_fltilesrefresh_TrophyIcon Java
    AWS Development
    Spring Boot
    Spring MVC
    SQL
  • $75 hourly

    • 0.0/5
    • (0 jobs)
    Senior Java Engineer/ Contractor / Freelancer with 9+ years of experience in building cutting-edge software solutions. Helping global clients achieve their technology goals using AWS, Java, Python, Golang, and Node.js.
    vsuc_fltilesrefresh_TrophyIcon Java
    REST API
    MongoDB
    PostgreSQL
    Git
    Docker
    Amazon EC2
    Amazon ECS
    Amazon S3
    Apache Camel
    Kafa
    Spring Boot
    Golang
    Python
    SQL
  • $65 hourly

    • 0.0/5
    • (0 jobs)
    Senior Java Software Engineer with extensive experience in large-scale E-commerce applications. Proven track record of driving revenue growth (€1M+ annually) through innovative features like Mixed-Delivery. Excellent problem-solving and mentoring skills. Proficient in Agile methodologies. I bring both the expertise and the dedication to drive projects to completion.
    vsuc_fltilesrefresh_TrophyIcon Java
    Docker
    International Development
    Tailwind CSS
    SOAP API
    REST API
    Spring Boot
    Spring Framework
    SQL
    Angular
    TypeScript
    JavaScript
    Ecommerce Website
    Web Application
    Web Development
  • $45 hourly

    • 3.7/5
    • (8 jobs)
    I'm a software developer with 20 years of professional experience specializing in game development, interactive applications, and web development. I've worn many hats in the software development industry – from an employee, consultant, and freelancer to eventually founding and managing two successful development studios. As a consultant and freelancer, I’ve collaborated with high-end software development companies, contributing to projects in the financial, governmental, and medical sectors, but also on research and end consumer-oriented projects. I'm passionate about taking on new challenges and leveraging my expertise to bring innovative projects to life.
    vsuc_fltilesrefresh_TrophyIcon Java
    Microsoft SQL Server
    SignalR
    ASP.NET
    .NET Core
    Web Development
    Mobile App Development
    Game Development
    Android
    Performance Optimization
    C#
    Game Prototype
    Unity
  • $45 hourly

    • 0.0/5
    • (1 job)
    With over 13 years of experience in web development, I specialize in transforming ideas into powerful, user-friendly applications. While Laravel is my framework of choice, I’m proficient in a wide range of technologies ensuring I can tackle any project with the right tools. 🔧 What I Bring to the Table: • Tailored Solutions: I take the time to understand your unique requirements, delivering custom applications that drive results. • Agile Development: My focus on efficiency and collaboration allows me to adapt to changing needs and ensure timely project delivery. • Code Quality: I believe in writing clean, maintainable code, ensuring your project is built to last. 🌟 Whether you’re a startup looking to launch your first app or an established business seeking to optimize your existing systems, I’m here to help you navigate the digital landscape with confidence. Let’s connect and explore how I can turn your vision into reality!
    vsuc_fltilesrefresh_TrophyIcon Java
    TypeScript
    JavaScript
    Database Design
    Database
    Tailwind UI
    Tailwind CSS
    Laravel
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    As a Lead QA Engineer with over 10 years of experience, I specialize in web automation, API testing, performance testing, and database validation. I’ve led teams of 10 to 20 testers and delivered high-quality software solutions across industries like healthcare, banking, e-commerce, and networking. I have extensive expertise in designing and implementing automation frameworks, as well as in leading performance and API testing efforts. My tech stack includes tools like Selenium, Postman, JMeter, and Locust, alongside development skills in Python, Java, Scala, and Kotlin. I focus on ensuring comprehensive test coverage, providing test strategies, and driving team performance in both manual and automated testing environments. Let’s work together to ensure your software is reliable, high-performing, and user-friendly.
    vsuc_fltilesrefresh_TrophyIcon Java
    Testing Framework
    QA Testing
    Load Testing
    GUI Testing
    Swift
    VMware vSphere
    QA Engineering
    Scala
    Python
    Software QA
    Node.js
    JavaScript
    Continuous Integration
    API Testing
  • $35 hourly

    • 3.7/5
    • (9 jobs)
    I have 18 years of professional software development experience. I've worked with lots of technologies and mostly challenging and interesting projects. One of my rules is to pick work which is challenging in at least one way, so I feel prepared for pretty much anything you can throw at me. I focus on quality of code and good practice in development. I am an adept of proper test-driven development. I have vast experience with software design and architecture and I am not intimidated by the prospect of having to work alone on a project, but I have experience working in teams as well and I usually adopt a supportive and open attitude towards team mates. I've worked on pretty much everything, from low-level Linux development, internet of things, embedded systems to high-level back-end and front-end, machine learning and nlp/nlu. The programming language of choice is not an issue for me as I have worked in many languages and I am ready to tackle the ones I have not encountered yet.
    vsuc_fltilesrefresh_TrophyIcon Java
    C
    Linux
    C++
  • $20 hourly

    • 5.0/5
    • (4 jobs)
    Java Backend Developer Computer Science Engineer Technologies and skills: • Java 8, 17, 21 • Spring Boot Framework • Web Services: SOAP, REST • Agile Methodology (Scrum, Jira, Confluence) • Git (GitHub, GitLab, Bitbucket) • Unit Testing: JUnit, Mockito • Debugging • JPA, Hibernate • MySQL, PostgreSQL • Data Structures and Algorithms • Heroku • Binance API, API Integration, Automated Trading Bots for Binance
    vsuc_fltilesrefresh_TrophyIcon Java
    Lisp
    Common Lisp
    Automation
    Git
    GitLab
    Agile Software Development
    Heroku
    Hibernate
    GitHub
    Trading Automation
    Binance Coin
    Spring Boot
    PostgreSQL
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Hi, I am Razvan 👋 Software Engineer with almost 5 years of experience, I focused on web development and customer well-being in my career and education. I am most experienced with the JavaScript / Node environment, including React, Stencil (as Frontend technologies) and Express (as Backend framework). I have some hands-on experience with Java as well, including Reactor. Passionate leader, team worker and highly self-organized individual. For more information about me, check me out on LinkedIn. Let's connect and make your digital dream come true 🎉
    vsuc_fltilesrefresh_TrophyIcon Java
    Git
    Tailwind CSS
    Redux
    Stencil
    Figma
    Jira
    RESTful API
    GitHub
    React
    Amazon Web Services
    JavaScript
    Node.js
    CSS
    HTML
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    In my 5 years working at my first job, my team focued on developing a Qt-based generic visualization. Design, development and verification (unit tests, integration tests, system tests in cars) of an interactive visualization framework used to display the camera’s detected objects. It can be also extended with plugins defined by users and communicating through an API. Developed with high focus on testability, maintainability, stability and performance. Recently I've been taking an interest in front end development, I used React to develop some personal projects including a portofolio website, some games like wordle and and also some API's that track data in real time.
    vsuc_fltilesrefresh_TrophyIcon Java
    C++/CLI
    React
    Rust
    JavaScript
    Python
    C++
  • $12 hourly

    • 5.0/5
    • (2 jobs)
    My Portfolio Welcome to my profile! I am a freelance tester who is passionate about quality assurance and dedicated to delivering high-quality testing services to clients. As a dynamic and focused individual, I have chosen to specialize in testing because I believe it is my calling. With my experience have taught me that testing is not just about finding bugs, but also about ensuring that the product meets the end user's expectations. I take pride in my work and approach each project with a sharp eye for detail, identifying and reporting issues to help improve the overall quality of the product. One of my strengths as a tester is my attention to detail. I understand that even the smallest details can have a significant impact on the end user's experience, and I make sure to thoroughly test every aspect of the product to ensure that it meets the highest standards of quality. In addition to my attention to detail, I am also a dynamic individual who can adapt to changes in project scope and requirements quickly. As a freelance tester, I am committed to delivering high-quality services that meet the needs of my clients. Whether you need me to test a software application, website, or mobile app, I am confident in my abilities to provide accurate and insightful feedback that can help improve the overall user experience. If you are looking for a dedicated and experienced tester to join your team, I am here to help! I am passionate in graphic design. Since I met Canva, I haven't stopped:) So if you need a graphic design for your business for social networks, advertisements, photo editing or flyers, business cards, invitations, thank you cards, menus, etc. I have experience in manual testing as a freelancer and basic automation knowledge following the two accredited courses in manual testing and automated testing with Java and Selenium. If you need a tester, I find the defects quickly... And not the last experience I have is in Wordpress site management - if you need site maintenance, update plugins or add products to your site or blog, maybe you don't have time and you are looking for someone to take care of these tasks . You can find me here available to start anytime. Just to let you know I don’t use any android just IOS and macOS!
    vsuc_fltilesrefresh_TrophyIcon Java
    Software QA
    GIMP
    Canva
    Testing
    Adobe Photoshop
    Software Testing
    Selenium
    Object-Oriented Programming
    JUnit
    Automation
    Apache Maven
    Selenium WebDriver
    Windows Administration
    Beta Testing
  • $15 hourly

    • 0.0/5
    • (0 jobs)
    I’m a junior software developer with experience in building fullstack applications in Java/React. I also built small applications in UiPath/Automation Anywhere/Power Automate. I am also familiar with blockchain technologies. • I worked with HTML, TypeScript/JavaScript, CSS 3/5 • For databases, I can work with MongoDB and MySQL • As backend, I’m most experienced with Java, but I also know Python and C/C++ • I can also help with the UI/UX design
    vsuc_fltilesrefresh_TrophyIcon Java
    Blockchain
    Software Design Pattern
    Robotic Process Automation
    Operating System
    UiPath
    Database
    Computer Network
    Apache Kafka
    Spock
    MongoDB
    TypeScript
    JavaScript
    Python
    React
  • $13 hourly

    • 0.0/5
    • (0 jobs)
    Enthusiastic and curious Mid QA Engineer focused on helping customers achieve high quality products. During my 2+ years of experience I have been working on both Web and Mobile apps, using Browserstack for crossplatform testing, in an Agile environment. Currently working on expanding my Automation knowledge, using Selenium Webdriver with Java.
    vsuc_fltilesrefresh_TrophyIcon Java
    Test Case Design
    Cross-Browser Testing
    Quality Assurance
    Manual Testing
    QA Testing
    Mobile QA
    Regression Testing
    User Acceptance Testing
    Web Testing
    Cucumber
    TestNG
    JUnit
    Software QA
    Selenium WebDriver
  • $30 hourly

    • 0.0/5
    • (1 job)
    I'm a third-year student pursuing a degree in Business Computer Science with a passion for Web Development🌐 💻 Frontend Skills: HTML: I craft the structure of your web pages to make sure they're well-organized and accessible. CSS: I design beautiful and responsive user interfaces that provide an exceptional user experience. JavaScript: I add interactivity to your websites, making them dynamic and engaging. 🔧 Backend Skills: Python: I have experience developing robust and scalable backends using Python. Java: I can create powerful and efficient server-side applications with Java. C/C++: My proficiency in these languages allows me to tackle complex backend tasks. 📂 Version Control: Git and GitHub: I'm well-versed in version control systems, which ensures that your projects are always tracked, organized, and accessible. 🤝 Collaboration: I'm a team player and can easily adapt to different working environments, making me a great fit for collaborative projects.
    vsuc_fltilesrefresh_TrophyIcon Java
    Testing
    Web Scraping
    C
    Python
    Web Development
    Sass
    Bootstrap
    CSS
    JavaScript
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    I'm a graduate of the Faculty of Automation and Computers at the Technical University of Cluj-Napoca. I've developed strong skills in programming, computer networks, control systems, and AI. Engaging in research projects enhanced my technical abilities and teamwork skills. I'm passionate about using technology to solve complex problems and create innovative solutions. With my experience, I'm ready to start a career in the tech industry. Key Strengths and Skills: -Proficient in Java programming. -Solid foundation in Automatic Control and Computers. -Proven ability to deliver successful projects.
    vsuc_fltilesrefresh_TrophyIcon Java
    PLC Programming
    C#
    HTML
    CSS
    Health & Fitness
    Sports & Fitness
    Electronic Circuit Design
    JavaScript
    Technical Project Management
    Tech & IT
    C++
    C
    MATLAB
    Arduino
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