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Hire the best Java Developers in Gdansk, PL

Check out Java Developers in Gdansk, PL with the skills you need for your next job.
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Rating is 4.9 out of 5.
4.9/5
based on 188 client reviews
  • $30 hourly
    • 5.0/5
    • (16 jobs)
    My main expertise is QA Automation using Java and Selenium with more than 12 years of experience. I also have sufficient knowledge of C#, Javascript and Python. Recently I have gotten good experience in Playwright and deeper knowledge of Javascript tech stack. More about my technical experience: * Great knowledge of Java(I have work experience with Spring, Hibernate, servlets, JUnit, TestNG) * Web UI testing using Selenium and Playwright. * Web scrapping with Python+botasaurus, developing human-like behaving scripts * Mobile testing with Appium * Testing of Angular and React based applications * Proficient in working with HTML and CSS * Testing of web services(SOAP/REST) with different transfer data formats(XML, JSON). * Network protocols knowledge(HTTP/HTTPS, TCP) * Experience with usage of SVN/Perforce/Git as versioning control system * Jenkins and GitLab CI as a continuous integration system. * A lot of experience in test cases development and automation(more than 10 years). * functional and integration tests. * performance testing using Gatling and Jmeter * websockets * Common knowledge of SQL. * ant, gradle, maven for projects' building. * Docker * AWS services(EC2, S3), Ansible * Kubernetes * Bash scripts * Powershell Team skills: * Good understanding of Agile methodologies * Mentoring experience * 2 years of experience working as a team lead
    Featured Skill Java
    Selenium
    Python
    JUnit
    Git
    Apache JMeter
    Cucumber
    Gradle
    Software QA
    Continuous Integration
    Software Testing
    Automation
    Jenkins
    Performance Testing
    API Testing
  • $50 hourly
    • 5.0/5
    • (116 jobs)
    Full-stack software developer in the broadest meaning of this term. Experienced and familiar with programming at all levels of abstraction, from assembly to GUI. System-level, mobile, web. Designing and implementing a new programming language. I don't work well udder tight deadlines, but I'm yet to meet a problem that I'm unable to solve. In my free time, I love sewing.
    Featured Skill Java
    X86 Assembly Language
    Assembler
    Haskell
    Lua
    Dari
    Google Cloud Platform
    Flutter
    Scala
    Firebase
    C++
    Kotlin
    JavaScript
    Python
    TypeScript
  • $50 hourly
    • 5.0/5
    • (72 jobs)
    I specialize in native mobile application development (> 10 years), bringing extensive experience in Java EE (> 6 years) and a diverse range of mobile and server-side technologies. I am passionate about delivering high-quality, efficient, robust mobile solutions tailored to meet client needs. Whether developing sophisticated mobile apps, integrating complex server-side components, or crafting engaging games, I bring a comprehensive skill set and a commitment to excellence to every project. iOS: - Languages: Swift, Objective-C, C, C++ - UI: UIKit, SwiftUI - Libraries: Core/Foundation, AVFoundation, MapKit, WebKit, Alamofire, SwiftLint Android: - Languages: Java, Kotlin, C, C++, JNI - UI: Android View, Jetpack Compose - Libraries: Dagger 2, Room, Lottie, OkHttp, Retrofit, Glide, LeakCanary, Timber, StrictMode Cross-platform: - React-native, Flutter, Qt - Frameworks: Firebase, GStreamer SDK, FFmpeg, OpenGL, OpenAL - Libraries: libusb, libssl, libcrypt, libzip Tools: - Docker - Sonarqube - CI/CD
    Featured Skill Java
    Qt Framework
    Linux
    Mac OS App Development
    macOS
    Rust
    C++
    C
    Android App Development
    Swift
    iOS Development
  • $150 hourly
    • 5.0/5
    • (23 jobs)
    I've worked in every domain of software. Tell me what you're up to and I'll lead us through an effective solution. - Backend specialist for 5 years at S&P and Banqsoft. - Mobile specialist for 7 years with Diversido, Noble Muffins and other clients. - Professional experience with React, TypeScript, C++ and Java. I got my start when I took over IT at a horse trailer dealership to gather money to move to Europe. At S&P, I took our team's first two microservices from zero to production. I later served as scrum master, and was given a technical excellence award for my work in SQL optimization. As a game developer, my Turbo Slicer product has been featured repeatedly by the Unity Asset Store. I wrote a finite element analysis kit for PlayWay S.A. to manage building collapse for the games Construction Machines 2016, Demolish & Build 2017 and Demolish & Build 2018. In my spare time I support new programmers on Codementor.io.
    Featured Skill Java
    Polish to English Translation
    Unity
    Objective-C
    C#
    C++
    iOS Development
  • $40 hourly
    • 5.0/5
    • (13 jobs)
    Will tackle complex Microsoft Power Automate flows, including: - Microsoft Forms, - Microsoft SharePoint - Microsoft Lists, - Microsoft Planner - Excel Online (including custom scripts) - API Integrations: Google Drive, Slack, Hubspot - Approval Workflows Python: API, Document processing, Data extraction AWS: Lambda, S3, SNS Android: GPS (NMEA), Bluetooth, Accelerometer, Maps, GCM, Google Play Services (Leaderboard, Achievements), AdMob, Google Analytics, Chat (XMPP, Smack, OpenFire), Voice Recognition, Augmented Reality (OpenCV) OpenHAB (Smart Home) configuration and programming
    Featured Skill Java
    PDF Conversion
    Form Development
    Jotform
    Automation
    REST API
    Microsoft Power Automate
    Time & Cost Estimate
    Android
    AWS Lambda
    Python
    Project Scheduling
    Project Management
    Project Plans
    Business Analysis
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    💥Expert Backend Architect & Developer💥 Greetings✌️, I am an experienced Software Architect, Developer, Quality Analyst and a Mentor building cutting edge solutions that drive businesses forward. Specializing in Java, Spring, Spring Boot, Hibernate, Webservices, Microservices and different databases, I thrive on tackling complex challenges and transforming them into efficient solutions. Whether you're a starting a startup embarking on your digital journey or an established enterprise seeking to elevate your backend infrastructure, I'm here to partner with you every step of the way. From architecting robust APIs to optimizing database schemas, I have Developed & Supported 20+ green field enterprise projects. Hands on with technologies : Java, J2EE, Spring, Sprint Boot, Hibernate, Microservices, Javascript, Jquery, React JS, HTML, CSS, Oracle, MYSQL, Redis, UX/UI, AWS Cloud. Business Domians: 1. Banking & Financial Services 2. Travel - Specializing in Flights Integration - NDC 3. Health Care 4. Ecommerce
    Featured Skill Java
    J2EE
    Hibernate
    JavaScript
    Spring Framework
    React
    Spring Boot
    HTML
    jQuery
    Microservice
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    Certified AEM Sites developer and certified Java SE 11 Professional. I have 3.5 years of experience with AEM 6.4, 6.5, almost 5 years of experience with Java and 3 with Javascript(1 of it is experience with ReactJS). English level is B2+. During these years I worked on 3 long-term projects and 1 short-term project. Business area of these projects was IT & communications, airways (current project). On the last 2 long-term projects, I played the role of a technical team lead, leading Agile teams of 7-15 people. All projects which I worked on were following Agile software engineering principles, using Kanban and Scrum frameworks. My experience with AEM includes: -creating AEM components with Sling Models (including headless approach) -creating AEM page components and templates (both static and editable); -creating AEM forms, AEM Forms custom components and custom logic for AEM Forms backend; -plugins for AEM RTE; -OSGI Components (including JAX-RS REST API endpoints over OSGI) -infrastructure for integration with different services such as LinkedIn, Verint KM, Hashicorp Vault and etc., -AEM user management; - integrating AEM author with SSO identity provider; -AEM administering; -maven and OSGI bundles configuration; -configuration and kickoff for AEM fronetnd modules based on webpack, with Typescript, Babel and React support; -configuration of dispatcher rules and Sling Dynamic include; -integration of WCM io mediahandler into the project architecture; -writing Groovy scripts for bulk content update; -huge experience writing unit tests for AEM backend (looks like I am a big fan of Unit tests:) -during my work with AEM used to work with such libraries as Lombok, Mapstruct, Retrofit, Jackson, etc. -other AEM specific experience. Apart of this I know Python fundamentals, AWS fundamentals (also passed internal EPAM training on these topics), and have experience working with such tools as Jenkins, Greylog, Jira, Azuredevops, Bamboo, Hashicorp Vault, Gitlab, GIthub, Intellij IDEA, Postman. I always spend some part of my free time on learning, and I consider this one of my main advantages.
    Featured Skill Java
    OSGi
    React
    Adobe Experience Manager
    JavaScript
    Apache Sling
  • $45 hourly
    • 0.0/5
    • (1 job)
    - Results-driven software engineer with 3 years experience in IT - Programming Languages: Java, Javascript - Experienced in estimating, designing, implementing and testing of Java-based complex and high-performance applications - Soft skills are teamwork, time-management, quick witty, assiduity, communication - Interested in staying up-to-date with the latest technologies and best practices in software development.
    Featured Skill Java
    AWS Development
    Apache Kafka
    Spring Cloud
    React
    Kubernetes
    Facebook JavaScript
    Hibernate
    Spring Data
    Spring Boot
    JavaScript
  • $20 hourly
    • 5.0/5
    • (1 job)
    Hello! 👋 I’m Oleksandr, a Senior Full-Stack Developer with over 4 years of experience. I specialize in building robust web applications using Spring Boot and Angular, and have extensive experience in backend and frontend development. I help businesses streamline their processes, improve performance, and deliver seamless user experiences. Tech stack: - Java, Spring Boot, Spring Security, Spring Framework, JUnit, Mockito - JavaScript, TypeScript, Angular, Vue - SQL (MySQL, MariaDB), NoSQL (Redis) - HTML, CSS (SCSS, Bootstrap, Tailwind) - Maven, Docker, Git, Jira, Jenkins - PHP, Symfony , Laravel Let's talk I can help you! 💬 Regards Oleksandr
    Featured Skill Java
    Web Development
    SCSS
    NoSQL Database
    SQL
    Git
    JavaScript
    TypeScript
    Jenkins
    Docker
    Docker Compose
    Hibernate
    Spring Security
    Spring Boot
    Spring Framework
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    Summary I am a software engineer with over 10 years of experience working in the backend stack using multiple languages such as Java, Python, Kotlin. For many years I've been leading development teams across multiple different projects and clients. I have two AWS certifications with many years of proven experience working close to production as a SRE/DevOps. My specialization is developing and improving performance, reliability and throughput of large scale enterprise systems, where I have achievements like reducing E2E processing from 4 hours to 15 minutes.
    Featured Skill Java
    Multithreaded, Parallel, & Distributed Programming Language
    Generative AI
    Python
    Microservice
    Software Architecture & Design
    CI/CD
    DevOps Engineering
    Kotlin
    Amazon Web Services
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Hi, My name is Nick Bondarev. I'm experienced software engeneer. I've been working as a software developer for the last 8 years. In 2013 i started create apps for Android OS. In my portfolio you may find a few examples of my work. I'm really keen on creating beautifull and user friendly apps using cutting edge technoligies and frameworks. I have a Bachelors in Software Engineering from Belarusian State University of Informatics and Radioelectronics. I have experience working with: - Android SDK - Multythreading - Services - SQLite - REST Services integration - RxAndroid - Social networks integration - JSON - XML - Mobile payments integration - Material design - Android design support library - Analytics (Google, Fabric) - and many more... Thanks for you time. I'm looking forward to work together.
    Featured Skill Java
    Room
    Kotlin
    Android App Development
    Android
    SOAP
    SQLite Programming
    Android SDK
    RESTful Architecture
    Git
    XML
    JSON
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I have 10+ years of experience and mastery in App and Web development with different programming languages and platforms. I am honest, responsible, and dedicated to my work. IT knowledge: Software: C, C++, C#, Qt, Java, Kotlin, VB, .Net, Pascal, Python, Go, PHP, Scraping, Script... - Desktop Development: Desktop application, Browser Extension, Cross Platform Kernel Driver, Image & Video processing. - Mobile Development: Android, iOS mobile development and obfuscate, protection. Portfolio Items
    Featured Skill Java
    Mobile App Development
    Database Development
    Video Processing
    Smartphone
    C
    Assembly Language
    C++
    Reverse Engineering
    Microsoft Visual C++
    ASP.NET
    Qt Framework
    Image Processing
  • $30 hourly
    • 5.0/5
    • (1 job)
    I am an experienced software engineer with a strong background in Java, Spring Framework, Maven. I am passionate about building robust and scalable applications that deliver exceptional user experiences, discovering new technologies, approaches and patterns to resolve business issues and improve stability and perfomance of applications. With my experience in Java development, I have successfully delivered complex projects utilizing frameworks like Spring Boot and Spring MVC. My proficiency in designing and implementing RESTful APIs, database integration, and application security allows me to develop efficient backend systems. In addition to my backend skills, I have skills in JavaScript, TypeScript and React, enabling me to build interactive and responsive user interfaces. I have hands-on experience with front-end development, including state management, component architecture, and integrating APIs. In addition to that, I am experienced in Jira Platform. I have an
    Featured Skill Java
    Spring Cloud
    React
    JavaScript
    Jira
    SQL
    TypeScript
    Apache Maven
    Spring Boot
    Spring Framework
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Current role Senior Android Developer at Prequel Inc. Experience Artiycial Intelligence, Digital Media, Art, Video, Healthcare, Personal health, Mental health, Mobile, Telecommunications, Consulting, Music, Media, Web Design, B2C Technologies Android, Kotlin, Dagger, Firebase, Java, Espresso, Retroyt, RxJava, SQL, C#
    Featured Skill Java
    Firebase
    JetPack
    Software
    Kotlin
    Android
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    I am a Senior Java Developer with over 20 years of experience designing and building enterprise-grade applications in Java/J2EE. My primary focus is on Spring Boot, microservices, and RESTful APIs, with a proven track record of creating high-performance back-end architectures. Leveraging PostgreSQL, IBM Db2, and GraphQL, I ensure efficient, secure data management and seamless integration between distributed systems. On the front end, I specialize in React, TypeScript, and JavaScript, developing responsive, modern, and user-friendly interfaces. By combining my full-stack expertise, I deliver end-to-end solutions—from database schema design and back-end logic to front-end development and user experience. My experience with Docker, Git, Maven, and Gradle also means that I can set up streamlined CI/CD pipelines for faster release cycles. Above all, I’m passionate about writing maintainable, clean code and thoroughly testing it using JUnit, Mockito, and integration testing strategies. I’m comfortable collaborating across teams and proactively embracing new technologies to drive innovation and deliver top-notch results. If you need a developer who can bring clarity, efficiency, and reliability to your project, let’s connect!
    Featured Skill Java
    Amazon S3
    Apache Groovy
    GraphQL
    JUnit
    AngularJS
    SQL
    TypeScript
    JSON
    RESTful API
    React
    jQuery
    Gradle
    Spring Boot
    Java Collections Framework
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    Hi 👋. I specialize in developing clean 💻, scalable applications that combine user-friendly interfaces ✨ with reliable web 🌎 and service 🔧 . Let’s connect and discuss how I can help bring your vision to life! 🤝 🛠️ Skills: 👨‍💻 Full-Stack Development (Java, Python, TypeScript, JavaScript and many frameworks) ⚡ API Design & Integration 🚀 AWS Cloud
    Featured Skill Java
    Python
    AWS Development
    Service Cloud Development
  • $10 hourly
    • 0.0/5
    • (2 jobs)
    I'm an Android Developer with a real passion for creating apps that are easy to use and solve real-world problems. I love diving into Android development because it's all about making things better for the users. I'm constantly learning new techniques to stay on top of the latest in app development. I learn quickly and always approach my work with the right mindset. I can speak and use English well (B2/C1 level), so working in an English-speaking environment is something I'm comfortable with. I'm always keen to expand my skills in Android development and open to feedback because I believe there's always room for improvement. I've got experience working in teams with Agile and Scrum methodologies, which means I know how to work efficiently and collaboratively. Plus, I graduated with an Engineering Master's degree in Mobile Systems from WSB University.
    Featured Skill Java
    Clean Architecture
    Room
    Firebase Realtime Database
    Firebase Cloud Firestore
    Firebase
    Android UI Design
    Android SDK
    Android App Development
    Android App
    Android Studio
    Kotlin
    REST API
    Android
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    I'm a student of computer science looking to increase my web design portfolio by offering affordable, fast and reliable websites for small to medium businesses. I'm happy to support my clients throughout the design process, from the proof of concept to final website details and any further support needed. Feel free to message about any projects 😊
    Featured Skill Java
    JavaScript
    React
    Web Development
    Web Design
    Software Development
    Web Application
    Oracle
    C
    MySQL
    Python
    WordPress
  • $29 hourly
    • 0.0/5
    • (0 jobs)
    Top Skills: Java, React Experienced Java developer (16 years of practice, including 5 years of teaching in a university). Designed scalable, resilient, and high-performance systems using modern Java frameworks. Take ownership of architectural decisions, ensuring clean code, proper design patterns, and alignment with business objectives. Expertise includes microservices, distributed systems, and cloud platforms such as AWS, with a focus on CI/CD pipelines and DevOps practices like Docker and Kubernetes. Mentor developers, conduct code reviews, and drive team excellence while optimizing databases (SQL/NoSQL) and implementing caching solutions. With strong communication skills, collaborate with stakeholders, balance technical debt, and deliver robust solutions within Agile workflows. In my free time, I enjoy flying light aircraft, combining my passion for precision with a love of adventure.
    Featured Skill Java
    Architecture
    Cloud Computing
    Microservice
    JavaScript
    React
    International Development
    Product Development
    Web Application
    Web Development
    System Deployment
    Spring Boot
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    💻 Back-End Developer | Multilingual | Creatively Curious I'm a back-end developer with a passion for building efficient, scalable systems—and a curiosity that drives me to explore beyond the code. Whether it’s crafting clean APIs, optimizing databases, or diving into automation, I’m always up for a new challenge. What sets me apart? I speak four languages fluently and understand a few more, which helps me collaborate across cultures and communicate effectively. I also have experience in web and logo design, giving me a creative edge and a broader perspective on the projects I work on.
    Featured Skill Java
    Logo Design
    Python
    API
    Multilingual Translation
    Web Development
    Product Development
    Software Development
    JavaScript
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    I’m a software engineer in test with more than 12 years of experience in the industry. Working with UI and API testing. Have an experience in Java and JS test automation tools. Able to setup test automation from the scratch.
    Featured Skill Java
    GitHub Copilot
    GitHub
    Rest Assured
    GUI Testing
    API Testing
    Selenium
    Test Automation
    Quality Assurance
    Software Testing
    Software QA
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