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Hire the best Java Developers in Bratislava, SK

Check out Java Developers in Bratislava, SK with the skills you need for your next job.
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  • $50 hourly

    • 5.0/5
    • (20 jobs)
    QA Automation Engineer with 5+ years of hands-on experience in the field of software quality assurance with both manual and automated testing of stand-alone, client-server, web-based applications on various platforms and environments. Total professional experience in the IT industry is more than 15 years. • Strong knowledge of SDLC & STLC, in-depth understanding of Waterfall and Agile Scrum methodologies. • Great overall experience with Core Java and Object-Oriented Programming (OOP) concepts. • Proficient in using test automation tools, such as Selenium WebDriver with Page Object Model (POM) to develop automation testing scripts for different automation frameworks like Data Driven, and Hybrid frameworks. • Extensive experience in developing test scripts to implement test cases, test scenarios, and features for behavior-driven development (BDD) using the Cucumber tool and Gherkin language. • Strong knowledge of Junit, TestNG framework, Maven build management tool, GIT version control system, and Jenkins for continuous integration and continuous distribution (CICD). • Proficient in writing SQL queries to maintain, create and retrieve information from relational databases MySQL and Oracle and perform database testing using JDBC API. • Experience working on RESTful API testing using the Postman tool and REST Assured library in manual and automated testing respectively. • Proficient in overall Defect Management Process (DMP) including tracking bugs and reporting using Jira. • Professional expertise in Smoke Testing, User Acceptance Testing (UAT), Functional Testing, Positive/Negative Testing, System Testing, Regression Testing, GUI Software Testing, Ad-hoc Testing, Cross Browser/Cross Platform Testing, and UI Validation. • Experience in creating Requirement Traceability Matrix (RTM) between requirements and test cases to ensure test coverage. • Ability to work independently to meet deadlines and ability to adapt to a new environment quickly, critical thinker with excellent analytical skills, hardworking, detail-oriented, and a good team player.
    vsuc_fltilesrefresh_TrophyIcon Java
    Automated Testing
    Agile Software Development
    Git
    Jenkins
    JDBC
    MySQL
    Oracle
    SQL
    API Testing
    JUnit
    Apache Maven
    Selenium WebDriver
    Cucumber
    Jira
  • $40 hourly

    • 5.0/5
    • (16 jobs)
    Welcome! I'm Andrej, a dedicated developer and designer with over 15 years of industry experience. Throughout my career, I have successfully contributed to various complex 3D applications and games, including few games released for consoles (Activision). My areas of specialization include: ✅ Software Architecture ✅ User Experience ✅ Rendering Pipelines, Shaders ✅ Visual Effects ✅ Procedural & Parametric Modeling ✅ Performance Optimization ✅ Troubleshooting ✅ Graphic Design In addition, I have a range of available peripherals, including an Meta Quest Pro, two Xbox controllers, and a gaming workstation. If you are interested in hiring me for your project, please feel free to leave me a message. Best regards, Andrej
    vsuc_fltilesrefresh_TrophyIcon Java
    Game Design
    Graphic Design
    OpenGL
    3D Game Art
    Game Development
    Graphics Programming
    C
    C++
    C#
    Virtual Reality
    Unreal Engine
    Unity
  • $40 hourly

    • 0.0/5
    • (1 job)
    Looking for Website Design and Development firm? We offers Professional Website Design and Development services, Get Website Design and Development Services Today! We are a group of Dedicated, Hardworking, Skillful Freelancers from Slovakia. Our ultimate goal is producing high quality code and perfect designs that will satisfy our client's needs and preference. We assure you to get top performance and services. We have extensive skills in the following areas: Programing Languages Skills: C, C#, PHP, Java, SQL, VB, JS, HTML, CSS Database Systems: MySQL, SQLite Operating Systems: Windows, Debian, Fedora IDE: Eclipse, VS Others/Cross-platforms/Open Sources: Node.js, PhantomJS, HTMLUnit, Selenium Key Projects and Notable Works: 1. Wordpress plugin that updates social networks accounts status based on recent blog posts 2. Websites penetrating test via Selenium Webdriver 3. Data scraping from dynamic JS sources via Selenium Webdriver API inside a PHP environment for marketing purposes 4. Web automation and data scraping via PHP, CURL library, MySql
    vsuc_fltilesrefresh_TrophyIcon Java
    C#
    AngularJS
    Node.js
    Bootstrap
    Python
    React
    JavaScript
    WordPress
    PHP
  • $20 hourly

    • 5.0/5
    • (21 jobs)
    Hi 👋, thanks for checking in on my profile. I'm a passionate web developer with over 5 years of experience in creating dynamic and user-friendly websites. I specialise in front-end and full-stack, ensuring that each project is not only visually stunning but also functionally robust. Whether you need a new website from scratch or want to enhance your existing online presence, I am here to help you out. Note: Used to be Top Rated Plus, but took a break from Upwork for studies, hopefully will regain the title soon. ⚡Available now⚡ ❗️Open to offers❗️ Skills: 🟩 HTML & CSS: Crafting responsive and accessible websites that look great on all devices. 🟩 JavaScript 🟩 React & Angular: Building modern, single-page applications with seamless performance. 🟩 Wordpress: My CMS of choice 🟩 NodeJS 🟩 Java - Springboot 🟩 C# - ASP.NET 🟩 SQL & MongoDB 🟩 Version Control: Git 🟩 Responsive Design 🟩 SEO Optimization: SEO certified Other Skills: 🔴 Copywriting, especially for SEO 🔴 Can Develop Websites in Slovak or Czech if needed Experience: Single Page Applications (SPAs): Built several SPAs using React and Angular, providing users with fast and responsive web applications. Custom WordPress Themes: Developed bespoke WordPress themes for clients, ensuring brand consistency and unique functionality. Simple HTML, CSS & JavaScript Websites: I stared off building websites for small companies in my country. I still do this from time to time. API Development: Created RESTful APIs using various backend skills mentioned inthe skills section for seamless integration with various front-end applications. For list of my personal project, check out my Website, hronec.dev. PERSONAL QUIALITIES: ✔ Analytical skills ✔ Problem-solving skills ✔ High attention to detail ✔ Fast working ✔ Can work well on my own ✔ Meeting the deadline is a top priority ✔ Client communication is very important for me ✔ Staying updated to the latest trends Let's discuss your project and how I can help you achieve your goals. Feel free to reach out, and let's start building something amazing together! Feel free to send me a message or invite me to your job. I look forward to working together!😀
    vsuc_fltilesrefresh_TrophyIcon Java
    Microsoft Office
    Data Analysis
    Python
    CSS
    HTML
    ASP.NET
    C#
    Spring Boot
    JavaScript
    Angular
    React
    Web Development
    Slovak
    English
  • $70 hourly

    • 0.0/5
    • (0 jobs)
    Results-driven Full-Stack Developer and DevOps Engineer with 14 years of experience delivering scalable web applications and services. Expertise in modern frameworks (.NET, Node.js, Java, Angular, React, JavaScript, TypeScript, etc.) and cloud-based microservices (AWS, Azure). Adept in driving end-to-end project development, from architecture to deployment, with a strong focus on optimizing performance, code quality, and team collaboration. Proven success in leading cross-functional teams, enhancing DevOps pipelines, and integrating CI/CD strategies to reduce deployment times by up to 40%. Skilled in identifying and resolving complex technical issues, ensuring seamless project delivery and minimal downtime Experienced leader with a strong background in guiding teams, managing complex projects, and achieving strategic objectives. Excels in developing efficient processes, ensuring high standards, and aligning efforts with organizational goals. Known for collaborative approach and commitment to excellence.
    vsuc_fltilesrefresh_TrophyIcon Java
    TypeScript
    Node.js
    Jira
    React
    C#
    Azure DevOps
    JavaScript
    CSS 3
    HTML5
    ASP.NET
    ASP.NET Core
    ASP.NET Web API
    Angular
    Amazon Web Services
  • $55 hourly

    • 0.0/5
    • (0 jobs)
    I am a passionate android developer, who is always looking for new challenges. During my studies at Slovak University of Technology, I created my first android application as a critical part of my diploma thesis. Since then, I have been working as Android developer until now. I like to learn new things and new technologies so I can improve my skills. I love swimming, gym, good wine and especially learning new languages. Right now I am focusing on improving my japanese and spanish proficiency. I am always eager to try something new, so I am always open to some new job opportunities. So if you are looking for someone, who can improve or create your new mobile android application, do not hesitate to write me, I will be glad to help you with that.
    vsuc_fltilesrefresh_TrophyIcon Java
    Git
    Google Play
    Android Studio
    Android SDK
    Coroutine
    RxJava
    SQL
    Kotlin
    JetPack
    Retrofit
    Mobile App Development
    Android App Development
  • $33 hourly

    • 0.0/5
    • (0 jobs)
    I'm a back-end developer experienced in building back-end services and web applications in Java/Kotlin, Spring Boot, Hibernate, PostgreSQL, MySQL/MariaDB.
    vsuc_fltilesrefresh_TrophyIcon Java
    Web Development
    JavaScript
    HTML
    Hibernate
    Spring Framework
    Spring Boot
    Kotlin
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    Overall, as a software engineer with 10+ years of experience, I have a strong foundation in software engineering concepts and be able to apply this knowledge to build high-quality software systems that meet business requirements. I also have the ability to learn quickly, adapt to new technologies, and be willing to take on new challenges.
    vsuc_fltilesrefresh_TrophyIcon Java
    CI/CD
    Hibernate
    JDBC
    IBM Cloud
    Kubernetes
    Elasticsearch
    MongoDB
    Jakarta EE
    Spring Boot
    REST API
    Compliance
    Database
  • $50 hourly

    • 5.0/5
    • (1 job)
    Hello! I’m Sy, an accomplished software engineering. I thrive in web- and mobile app development with over 15 years of in-depth experience in creating leading-edge mobile solutions. Areas of Specialization: - Cross-platform Development with React Native - Native Android Development with Java & Kotlin - Native iOS Development with Swift & RxSwift - UI/UX Design Integration - Agile Methodologies and MVVM Architecture - Performance Optimization - Cloud Services Integration for robust back-end support My Professional Edge: Crafting state-of-the-art mobile applications isn’t just my career—it’s my craft. My expertise lies in piecing together sleek, intuitive app interfaces paired with compelling user experiences. I am well-versed in a plethora of technologies, from Java to Swift, and React Native to Flutter, equipping me with the versatility to build top-tier mobile apps for both Android and iOS platforms. Why Partner with Me: - Proven Excellence: My past portfolio boasts a history of highly complex projects. - Passion for Innovation: I don’t just build apps; I engineer experiences that resonate with users and propel businesses forward. - Custom-Tailored Solutions: As a problem-solver, I approach each project with fresh eyes, ensuring solutions that are as unique as your business challenges. - Commitment to Your Goals: I am relentless in my pursuit of your project’s success, adhering strictly to deadlines and budget considerations without compromising on quality. If you are in search of a seasoned professional who approaches mobile development with a blend of precision, passion, and a deep focus on delivering a seamless user experience, I invite you to connect with me. Let’s transform your vision into a mobile reality that stands the test of time and technology.
    vsuc_fltilesrefresh_TrophyIcon Java
    Swift
    JavaScript
    CSS
    HTML
    React
    Kotlin
  • $20 hourly

    • 0.0/5
    • (1 job)
    Experience Multiplayer canvas * developed a canvas game which a client can draw anything with other people * designed client server system * debugged bugs which involved socket programming JabberApp * an app that is similar to Twitter and Facebook which you can send posts, like posts, and follow somebody * developed backend in this project * used threads to develop server Slovak-English dictionary * a website dictionary that translates Slovak to English and vice versa. * used React framework to handle the frontend of the application * devised backend system which uses MongoDB as database Blogging website * The website that I upload my posts about programming tutorials * used Ruby for backend Book Catalogue Database * This is a webapp that you can add books to your favourites * implemented CRUD operations * used GraphQL for API * Node.js for backend Chat app * a real-time chat application implemented in Spring Boot * Websocket as message broker GeoQuiz –A geographical quiz application to help users learn about different locations – CI/CD, HTML, ExpressJs, Javascript Form Autofill Extension – A chrome extension that assists users in filling application forms – Javascript Haskell Interpreter – A custom interpreter developed using Haskell – Haskell Game Deals – a web application that lists latest game deals with CRUD operations for its users – PHP, Laravel, Typescript, React Your Anki – A mobile application that simulates Anki features – Kotlin, Android Studio 8 Puzzle Solver – A solver that uses A* algorithm to solve 8 puzzle – Python MyTypeRacer – A Python application that simulates Typeracer game PyQt Highlighter – An editor highlighting application using PyQt - PyQt
    vsuc_fltilesrefresh_TrophyIcon Java
    Database Programming
    Database
    RESTful API
    Database Management
    ASP.NET
    C++
    jQuery
    Angular
    GraphQL
    JUnit
    JavaScript
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    ADDITIONAL INFORMATION Polite, very punctual, tidy person, good looking, serious, ambitious and perfectionist. Team player and easy learnering. Ready for challenges. Who knows how to listen and when to speak, imaginative and curious with interest to learn everyday on different fields. Love travelling and get experience in new cultures.
    vsuc_fltilesrefresh_TrophyIcon Java
    Product Analytics
    Translation
    Customer Care
    Legal Assistance
  • $18 hourly

    • 0.0/5
    • (0 jobs)
    Dynamic, results-driven Developer with over 6 years of proven experience in delivering high-quality software solutions in competitive markets. Skilled in software design, solution architecture, service delivery, and customer support, with a strong focus on continuous improvement and business impact. A proactive team player and self-starter who thrives under minimal supervision, excelling at fostering talent, enhancing team collaboration, and delivering measurable results. Adept at building scalable web applications with continuous delivery pipelines, emphasizing pragmatism, process optimization, and stakeholder trust to drive business success. Core Competencies: Expertise in microservices architecture and modern software development practices. Experience collaborating with multi-cultural teams to create innovative technology solutions. Strong ability to translate business requirements into robust, scalable, and user-centric applications. Commitment to continuous learning, adaptability, and delivering exceptional value to clients.
    vsuc_fltilesrefresh_TrophyIcon Java
    Azure DevOps
    AWS CodeDeploy
    AWS Development
    Kubernetes
    Docker
    JSON
    GraphQL
    NoSQL Database
    JDBC
    Hibernate
    Apache Kafka
    Spring Security
    Spring Boot
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    I'm a Senior Software Engineer with a diverse set of skills ranging from batch scripting, to full-stack Web Application Development (React/Angular for frond-end, SpringBoot/SpringCloud for back-end) for cloud-wide deployment, to BigData pipeline building using the best tools on the market.
    vsuc_fltilesrefresh_TrophyIcon Java
    ELK Stack
    Apache Kafka
    Apache Spark
    Big Data
    Back-End Development
    NoSQL Database
    SQL
    Microservice
    G-Cloud
    Spring Boot
    Web Application
    Web Development
    Ecommerce Website
    Ecommerce
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    I am specializing in building modern and fully responsive websites in Wordpress. My goal is to satisfy every requirement of client, therefore communication is number one. For reasonable price I am offering wide range of services from consulting the first concepts to finalizing the project and also further administration.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Analytics
    Google Ads
    GIMP
    Inkscape
    Facebook
    Administrative Support
    WordPress
    WooCommerce
    Adobe Photoshop
    PHP
    CSS
    Shopify
    HTML
  • $45 hourly

    • 0.0/5
    • (0 jobs)
    I am software developer experienced in web development with focus on business inteligence and data processing.
    vsuc_fltilesrefresh_TrophyIcon Java
    Unit Testing
    HTML
    CSS
    Python
    C#
    Database
    Architectural Design
    Architecture
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    Hi, I’m Richard, I work as a Salesforce developer at a top S&P 500 tech company, where I specialize in creating smart, effective solutions. On the side, I love taking on projects here on Upwork, to expand my skills and help clients like you solve real-world problems. I’ve had the chance to work with some major players in industries like oil and tobacco, always focused on delivering results that go above and beyond. Here’s what I can do for you: • Build workflows and automations that make your life easier. • Develop SaaS solutions and custom scripts to simplify your processes. • Take your ideas and turn them into fully functional, polished solutions. Some of my go-to tools: React, Node.js, MySQL, PHP and Python. But I’m flexible, I can quickly learn and work with whatever tools you need. If you’re looking for someone who’s resourceful, efficient, and easy to work with, let’s connect. I’d love to help bring your ideas to life.
    vsuc_fltilesrefresh_TrophyIcon Java
    Critical Thinking Skills
    Agile Software Development
    SQL
    HTML5
  • $10 hourly

    • 0.0/5
    • (1 job)
    Junior Automation QA Engineer. Have experience in finding bugs, writing bug reports. Knowledge in SQL, Jira, Java, JavaScript, TestNG...
    vsuc_fltilesrefresh_TrophyIcon Java
    Cucumber
    AWS CodePipeline
    API Testing
    Apache Maven
    Automated Testing
    SQL
    JavaScript
    Mobile QA
    Blockchain
    Selenium WebDriver
    Postman
    QA Engineering
    TestNG
    Git
  • $20 hourly

    • 0.0/5
    • (0 jobs)
    If you are looking for a full-stack developer proficient in developing applications that meet your business needs, I would love to help you! I am an experienced professional developer and have been working for 8years. Having satisfied clients is very important to me, so I take good care of them. I communicate well with my clients and give constructive input, which they consider helpful. I am looking for long-term relationships with my clients to continue supporting their programming needs. Web Third Party Integaration (APIs etc) HTML5 | CSS3 + Bootstrap & other frameworks | SASS | SCSS PHP | Laravel MVC | Codeigniter MVC | OPENCART Python-Flask | Django C# | .Net | ASP .NET MVC JS - ES6 | Node Js | Express Js | Typescript JWT | Vue Js | JQuery | React Desktop Java | C/C++ | ElectronJS | Python Version Control Systems & CI/CD Git | GitHub | GitHub Actions (Jobs) | Bitbucket Docker | Kubernetes | Jenkins Databases MongoDB | MySQL | MS SQL Server | PostgreSQL | Firebase Stored Procedures | Cron Jobs | Triggers I would love the opportunity to work with you! If you’re interested in speaking further about how we can work together please don't hesitate to contact me. Thank you very much for your time!
    vsuc_fltilesrefresh_TrophyIcon Java
    React Native
    Data Analysis
    React
    Node.js
    JavaScript
    PHP
    WordPress
    Spring Boot
    Angular
    Python
  • $15 hourly

    • 0.0/5
    • (0 jobs)
    I’m a Computer Science student passionate about expanding my knowledge across various fields. I have hands-on experience in web scraping, web development, automation scripts, SEO optimization, and copywriting. I'm always eager to learn and explore new areas of expertise. You can find my different projects on my GitHub profile
    vsuc_fltilesrefresh_TrophyIcon Java
    Software Development
    C
    R
    AI Agent Development
    Web Development
    React
    Spring Boot
    Flask
    Django
    pandas
    MySQL
    JavaScript
    Python
  • $8 hourly

    • 0.0/5
    • (0 jobs)
    I'm a developer mainly aimed to get your work perfectly done. I can write sites for small and medium businesses using HTML&CSS, JavaScript and its frameworks, like React Also I can make desktop software with Java Spring and SQL databases
    vsuc_fltilesrefresh_TrophyIcon Java
    C
    React
    JavaScript
    Tailwind CSS
    CSS 3
    HTML
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